CN202482911U

CN202482911U - Spiral force-borrowing silt-breaking sand-blowing dredging device for river channels

Info

Publication number: CN202482911U
Application number: CN2012201023948U
Authority: CN
Inventors: 张玉林
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-03-19
Filing date: 2012-03-19
Publication date: 2012-10-10
Anticipated expiration: 2022-03-19

Abstract

The utility model relates to a spiral force-borrowing silt-breaking sand-blowing dredging device for river channels, in particular to a device which uses water flow power to push blades to rotate to drive cutters to stir silt at the river bottoms to reduce silt on riverbeds. The device comprises a central column, an upper cover positioned at the upper portion of the central column, a partition plate arranged in the middle of the central column and a base disk positioned at the lower portion of the central column. A central hole is arranged on the central column in the central axis direction, a float box is arranged on the periphery of the central column between the upper cover and the partition plate, an air bag is positioned in the float box, a rotary blade I is positioned on the periphery of the float box, a rotary blade II is arranged on the periphery of the central column between the partition plate and the base disk, and silt-breaking sand-blowing cutters are arranged below the base disk. The device only uses water power instead of other external power so as to reduce labor and save resources. The device is simple in structure, convenient to use, suitable for rivers of different sizes, economic and practical.

Description

Spiral borrows the power river course broken silt sand Accrete clearing device

Technical field

The utility model relates to a kind of spiral and borrows the power river course broken silt sand Accrete clearing device, and particularly a kind of flow dynamic that utilizes promotes the device that blade rotation drives cutter stirring river sediment, reduces riverbed silt.

Background technology

The channel deposits alluvial is the biggest problem of river regulation, life security of its direct affect people's and economic development.The height in riverbed is raised in the channel aggradation meeting, raises flood level, and flood protection works are caused danger.Long 786 kilometers of lower reache river, China the Yellow River, 2.3 ten thousand square kilometres of drainage areas, 93.6 meters of lower reache total drops; Average gradient 0.12 ‰, the interval water yield that increases accounts for 3.5% of the Yellow River water yield, because the Yellow River mud amount is big; Lower reache deposits for a long time and forms " aboveground river " world-famous, and river channel sedimentation is serious, riverbed 3-7 rice above ground level; Many up to more than 10 meters, the flood control in downstream, the Yellow River, river course and water resource utilize problem to seem more outstanding, are concerning people's life security.What in the Dredging Construction of China, generally adopt at present is the suction formula desilting method of stirring, and mainly through mixing plant the mud and the river of bottom, waters is stirred into muddy, with suction pump mud is siphoned away again; And lean on machinery to go out silt outside the river course clearly; Need to consume a large amount of energy, and can affect to river environment, the efficient of removing sand can not satisfy the demands far away with respect to quantity of sand and mud; And waste time and energy, can not deal with problems at all.

Summary of the invention

The purpose of the utility model is to provide a kind of spiral to borrow the power river course broken silt sand Accrete clearing device, utilizes dynamic energy of water flow disturbance river sediment, and silt is gone out the husky outlet of row, solves channel deposits alluvial problem.

For realizing above-mentioned purpose, the technical scheme that the utility model is taked is:

A kind of spiral borrows the power river course broken silt sand Accrete clearing device; Comprise central post, be arranged on central post top loam cake, be arranged on the dividing plate at central post middle part and be arranged on the chassis of central post bottom, the central post central axis direction is provided with centre bore, is provided with buoyancy tank between the loam cake of central post periphery and the dividing plate; Be provided with gas bag in the buoyancy tank; The buoyancy tank periphery is provided with the moving blade I, is provided with the moving blade II between the dividing plate of central post periphery and the chassis, and the below, chassis is provided with brokenly silt sand cutter.

Said blade I is an arc shaped blade, and blade I upper end is provided with fixed head, and said loam cake is installed on the fixed head.

Said blade II is an arc shaped blade.

Said cutter is " V " shape cutter.

Said centre bore two ends are provided with bearing.

The utility model device is installed on the riverbed, promotes blade by means of flow dynamic and rotates rapidly, drives cutter on the chassis and stirs riverbed silt it is floated, by the current downstream of carrying under one's arms; Reduced the riverbed, formed than falling, made water velocity accelerate, the utility model device rotary speed is accelerated thereupon; Further damaged riverbed silt, under water flow velocity and the continuous quickening of the utility model device rotary speed, the riverbed degree of depth continues to deepen; The damaged area in riverbed is also enlarging simultaneously, forms the riverbed, further forms curb; A plurality of the utility model devices are installed on the river course, and relay just can reduce the whole riverbed in river course towards silt.The utility model is only by means of waterpower, need not extraneous other power, reduce the labour, and economize on resources, the utility model is simple in structure, and is easy to use, can be applied to the rivers of different sizes, economical and practical.

Description of drawings

Fig. 1 is the utility model structural representation.

Fig. 2 is the utility model structure vertical view.

Fig. 3 is the utility model A-A sectional view.

Fig. 4 is the utility model structure upward view.

Fig. 5 is the utility model working state schematic representation.

The specific embodiment

Like Fig. 1-shown in Figure 4; A kind of spiral borrows the power river course broken silt sand dredging device, comprise central post 6, be arranged on central post 6 tops loam cake 1, be arranged on the dividing plate 3 at central post 6 middle parts and be arranged on the chassis 4 of central post 6 bottoms, dividing plate 3 is welded on central post 6 excircles with chassis 4; Central post 6 central axis directions are provided with centre bore 8; Centre bore 8 two ends are provided with bearing 11, are used to install and fix stake, have increased the sensitivity and the concentricity of the utility model device; Be provided with buoyancy tank 5 between the loam cake 1 of central post 6 peripheries and the dividing plate 3, be provided with gas bag 14 in the buoyancy tank 5, gas bag 14 the insides are filled with air; According to river buoyancy size; Regulate the tolerance of gas bag the inside, make the utility model device and riverbed keep respective, be similar to the contact riverbed; Avoid cutter 7 insertions and riverbed, hinder rotation; Buoyancy tank 5 peripheries are provided with blade I 2, and blade I 2 is welded on buoyancy tank 5 peripheries, and blade 2 I lower ends are welded on the dividing plate 3; Blade I 2 is an arc shaped blade, and blade I 2 upper ends are provided with fixed head 15, and fixed head 15 can be welded on blade I 2 upper ends; Also can be fixed on blade I 2 upper ends through bolt, nut, fixed head 15 is for L shaped, and fixed head 15 is provided with screw; Loam cake is provided with the corresponding screw of screw therewith, and loam cake is installed on the fixed head 15 through bolt 16, nut 17; Be provided with blade II 9 between the dividing plate 3 of central post 6 peripheries and the chassis 4, blade II 9 is fixing with central post 6, dividing plate 3 and chassis 4 respectively through welding, and blade II 9 is an arc shaped blade; Blade I 2 and blade II 9 drive the rotation of the utility model device by flow dynamic, and 4 belows, chassis are provided with brokenly silt sand cutter 7; Cutter 7 is welded on 4 belows, domain; Cutter 7 is " V " shape cutter, and damaged riverbed plays brokenly the effect of silt sand.

As shown in Figure 5, spud pile 10 is installed in through bearing 11 in the centre bore 8 of central post 6, and the utility model device is installed on the riverbed 13 in river course 12 through spud pile 10; According to the riverbed situation, select the spud pile of respective length for use, earlier the utility model device is debugged during use; Be installed on the riverbed through spud pile 11,, regulate the tolerance of gas bag the inside according to its position in river; Make the utility model device and riverbed keep respective, approximate contact riverbed; Blade I 2 and blade II 9 drive the rotation of the utility model device under the impact of flow dynamic, rotate thereby drive cutter 7, make riverbed silt receive breakage; The riverbed, bottom plays certain ratio and falls, and than falling further quickening water velocity, it is big that hydraulic impact becomes, and the utility model device rotary speed is accelerated thereupon; Further damaged riverbed silt is constantly accelerated down at water flow velocity and the utility model device rotary speed, and the riverbed degree of depth continues to deepen, and the damaged area in riverbed also becomes big; The damage length of river bed water flow path direction also prolongs, and water and silt form density current, further wash away the riverbed; Form the riverbed, further form curb, in curb, form muddy water stream again; Under the effect of buoyancy tank and gas bag, the utility model device moves down along spud pile simultaneously, keeps and the corresponding distance in riverbed; The current that riverbed silt is accelerated by flow velocity are flushed to downstream, discharge from arranging husky outlet, make whole section riverbed reduce.

When the utility model was specifically worked, afterbody began to install the utility model device from the downstream, river course earlier, washes away the riverbed earlier, formed curb; The utility model device works on, and at a distance from a segment distance another the utility model device is installed at the upper reaches, river course again, carries out work successively; Each device forms the section of washing away, and the acting in conjunction of a plurality of the utility model device forms the relay sand surfing; Many sections of washing away have been connected to a line, and silt is gone out sediment ejection opening the most at last, thereby make riverbed, whole river course reduce; During work, silt must have outlet, so that silt is got rid of the river course.

Through example, the concrete application of the utility model is described below.

Example 1, get 100 meters long of certain channels and be the place, channel is wide 0.55 meter, and is high 0.8 meter, the sclerosis channel; It is thick at the bottom of canal, to lay 0.3 meter in the Yellow River sand, and silt hardens behind the water logging bubble, irrigates by lifting water to a higher level with a water pump, etc. 0.5 meter-0.8 meter of the station water supply degree of depth; Flow velocity 0.34 meter per second is installed in this device above the silt at the bottom of the canal through spud pile, under unhurried current impacts; Blade begins helical rotation, drives cutter and rotates, and the silt breakage is dug down and let out.Through measuring, let out 50 meters-70 meters under the bed load sand, let out under the suspended load apart from farther.Along with the increasing of flow velocity, it is farther that silt is washed away.In this process, the utility model device moves down under the effect of buoyancy tank and gas bag voluntarily, keeps and the corresponding distance in riverbed; The work of this device is in the time of ten minutes; Measure the silt dinting depth and reach 0.15-0.18 rice, 1.5 meters long, 0.5 meter wide of desilting area records silt dinting depth 0.2-0.25 rice after 20 minutes; 2.5 meters of desilting areas are long, and 0.5 meter wide.

Example 2, measure 0.68 meter of the depth of water when drawing yellow lock in the peach blossom valley, water flow velocity 1.1 meter per seconds, this device are vertical round tank assembling structure; 0.46 meter of blade diameter; Central post is high 0.48 meter, and 0.03 meter of the cutter length of side is vertically mounted on this device on the riverbed through spud pile; Measured 2.0 meters of riverbed silt dinting depth average out to, decline area 1.4-1.5 rice after working 20 minutes.

Example 3, measure 0.8 meter of the depth of water when drawing yellow lock in the peach blossom valley; Water flow velocity 1.0 meter per seconds are installed in the utility model on the riverbed, work and measure after one hour; Riverbed silt decline width is 1.4 meters; 0.7 meter of this device upstream decline length, 0.2 meter of downstream decline length, 0.2 meter of dinting depth average out to.

The broken sand of the utility model device effect of going to become silted up is obvious, and only by flow dynamic, need not other outside energy, and is time saving and energy saving; Save cost, the utility model can be used in little river course, also can be applied to big rivers such as the Yellow River, starts working from estuary earlier during use; Silt is poured the sea, and upstream so is carried out the work successively, a plurality of the utility model device co-operation; Just can reduce whole riverbed, solve flooding, dyke breach problem, ensure people's life security; Big river is convenient to open ship's navigation, promotes the water resource utilization, promotes socio-economic development.

Claims

1. a spiral borrows the power river course broken silt sand Accrete clearing device; It is characterized in that: comprise central post, be arranged on central post top loam cake, be arranged on the dividing plate at central post middle part and be arranged on the chassis of central post bottom; The central post central axis direction is provided with centre bore; Be provided with buoyancy tank between the loam cake of central post periphery and the dividing plate, be provided with gas bag in the buoyancy tank, the buoyancy tank periphery is provided with the moving blade I; Be provided with the moving blade II between the dividing plate of central post periphery and the chassis, the below, chassis is provided with brokenly silt sand cutter.

2. spiral according to claim 1 borrows the power river course broken silt sand Accrete clearing device, and it is characterized in that: said blade I is an arc shaped blade, and blade I upper end is provided with fixed head, and said loam cake is installed on the fixed head.

3. spiral according to claim 1 borrows the power river course broken silt sand Accrete clearing device, and it is characterized in that: said blade II is an arc shaped blade.

4. spiral according to claim 1 borrows the power river course broken silt sand Accrete clearing device, and it is characterized in that: said cutter is " V " shape cutter.

5. spiral according to claim 1 borrows the power river course broken silt sand Accrete clearing device, and it is characterized in that: said centre bore two ends are provided with bearing.