CN1130704A

CN1130704A - Traction shuttle running type hydraulic dredger

Info

Publication number: CN1130704A
Application number: CN 95102508
Authority: CN
Inventors: 肖冠英
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-03-08
Filing date: 1995-03-08
Publication date: 1996-09-11

Abstract

A dredger for dredging river and gathering sand is equipped with such units as 36 kW diesel engine for driving 200-150 LX-20 helical mud-sand pump, drawing and steering unit including anchor, steel cable, motor and reel for making the dredger advance forward, long steel tube with sucker and connected to mud-sand pump, and the unit attached to the steel tube and including long axle, speed-reducing gears, motor rotating forward and backward and knife wheel for loosening mud and sand and making dredger move in shuttle mode. The dredged mud and sand is delivered via overwater float pipe to sand trap on land. Its dredged amount of mud and sand is 50 cu.m/h and delivery distance is 100m.

Description

Traction shuttle running type hydraulic dredger

The present invention relates to a kind ofly to dredge the river, canal is dredged and is adopted the new operational method and the equipment of sand.

Known shallow water is dredged and is adopted the sand ship, form by hull, power-equipment and mechanism's three parts of dredging, dress diesel engine, generator are power source in the ship, and the mechanism of dredging comprises reamer head (as inhaling the also available hydraulic giant sand surfing of sand), soil-suction head, suction mud pipe, winch, slush pump etc.The operation piling bar is equipped with in the winch rear end, piling bar is the centre of location during operation, and travelling winch makes hull do the circular arc swing by anchor system, and reamer is cubic metre of earth cutting scarifying under water, and deliver to soil-suction head and gulp down mouth, the Hydromotive machine apparatus by shell pump and suction, comb connects water band mud and delivers to the spoil ground.

This dredge boat operation is interrupted, and after cutting out an arcuate zone silt, must pull up piling bar and drive ship and advance after the arc bandwidth, inserts the piling bar location once more, cycle operation such as preceding.And must be mobile after the several cycles anchor system, so labour intensity is big, arcing time factor (dredge last/change stake be shifted last) is little, power fails to make full use of more.

The objective of the invention is to provide a kind of working continuously, leak that the rate of digging is little, work easily, improve dredging of work efficiency and adopt method for determining sand and corresponding implement thereof.

The object of the present invention is achieved like this:

As Fig. 1, be provided with cable traction device B at dredge boat A head, it drives vertical reel B1 by buncher, and around wire rope B2, its outer end, is involved in rope during the reel rotation slowly along on pathway the place ahead clasp anchor B3 that dredges on the reel, and hull is advanced by traction.

Guiding device C is arranged under the draw-gear, be that insertion can be with the round bar C2 of depth of water lifting in central vertical tube C1, the arm of sensing C3 front end bracelet is arranged by steel wire penetrating on the bar, bar lower end bifurcated is to palintrope, dress a slice directive wheel C4, directive wheel advances with hull, and the mud layer rolling cut is gone out wire casing one, and it is that stern shuttle road wheel makes the instantaneous centre that swings about hull.

Its end dress diesel engine D band shell pump E of ship, its import dress is scraped mud and is inhaled the capable combined unit G of husky shuttle, it connects with the long steel pipe G2 of band pivot about flexible elbow G1 and head end, following termination suction nozzle G3, dress major axis G4 on the steel pipe face, the axle top links by chain drive and gear reduction motor G5, the capable break bar G6 of axle lower end dress shuttle, break bar skims over the grating revolution blowdown of suction nozzle bottom surface, both scraped loose silt and sucked by suction nozzle, through pump E threeway G7 go out gate valve G8, the floating pipe of the elbow G9 upstream face that can turn to G10 delivers to and is subjected to the battle field on the bank.And break bar is on the silt layer, and half cuts silt particle scraping, and half at rolling condition, so be again the shuttle road wheel.When top motor G5 accepts control instruction and just changeing, the time and reverse, with regard to wheel carrying knife at mud layer with same rotating, the hull of supporting steel pipe top, top pivot, satisfy seized on both sides by the arms with about swing.Advance in conjunction with the traction hull, accomplish to move and put into line, move line become to look like weave cotton cloth shuttle back and forth right, right as electron gun in fluorescent screen scanning, reach in flakes the effect of suction desilting continuously.

The present invention than known be the centre of location with the piling bar, be arc swing dredging method by anchor, be to become to be interrupted operation into working continuously, power is fully used, so the work efficiency height, it is light to work, especially the spy is suitable for the trunk canal desilting.

Concrete device of the present invention and operational method are again by following embodiment and annexed drawings set forth:

If Fig. 1 is one 3～5 tons a steel dredge boat, the draw-gear of fore, by a 0.75KW, compositions such as YCT112-4B electromagnetic varispeed motor, worm reducer, reel, wire rope and anchor, hauling speed, can regulate with condition differences such as mud layer thickness, the capable width of cloth of shuttle, for example 10～100m/h.When shallow water operations, just adorn directive wheel under (for example in the 2m) fore, seize hull on both sides by the arms with the center that swings as the shuttle road wheel, when the depth of water is big can, Jing is the center of swinging with anchor point.

This dredge boat stern has the floating pipe A1 stage casing and the terminal door frame A2 and the A3 that is welded with Ω shape of two rigid connections, and at A2 top dress pulley G11, it is to inhale the mud steel pipe that wire rope is walked around under the pulley, and the hoist G12 on the place ahead and the ship links, in order to the lifting suction nozzle.

A 36KW is housed in the ship, the not stifled formula shell pump E of 495A diesel engine D, a 200-150LX-20 type of direct connection spiral, when it moves at rotating speed 2050r/m, lift 20m, flow 270m ³/ h establishes husky bulk density 1.2kg/L of band cement and η=72%, and shaft power 24KW, sludge volume amount to a cubic metre of earth about 50m ³/ h, array pitch is to 100m.

The outer Annex III belt pulley of pump shaft coupling drives the STC-5 type 5KW generator F in left side with the V-belt, as power supply on the ship.

The shell pump import connects φ 200 long 6m steel pipes facing to the perforate of stern dividing plate behind the external curved rubber hose, end connects suction nozzle, and 3～4 bearing supports are arranged above the steel pipe, and major axis is rested the head on thereon, and the capable break bar of second line of a couplet shuttle is gone up and YCJ225-4 type 4KW gear reduction motor linkage.If the capable break bar diameter phi 600 of shuttle, and regulate running orbit half band and slide, to scrape and cut the soil that becomes silted up, half band rolls, and is capable at the mud layer shuttle.As the capable fabric width 5m of left and right sides shuttle, slide coefficient 0.5, then a reciprocal shuttle is capable, break bar 11 changes, and is 22.5r/m by this gear reduction motor output shaft rotating speed, establishes reciprocal shuttle and accounts for 1/10 capable switching time, then the capable break bar actual speed of shuttle is 21r/m, and establishing hauling speed is 50m/h, then desilting area 250m per hour ², promptly 0.375 mu/hour.

The rolling cut adjusting device: the nearly 400kg of full weight of dredging tube and break bar axle etc. is pressed on the mud layer, look the difference of its resistance, be absorbed in mud layer the depth is arranged, the rolling cut ratio has growth and decline, so near soil-suction head rear dress water, gas swap tank H, link to each other with air compressor machine K on the ship with flexible pipe K1, regulate it by gate valve K2 and bypass valve K3, calm the anger into a jar draining, jar tool buoyancy alleviates deadweight, the only light mud layer of pressing of break bar; Exhaust is auto-irrigation then, and break bar is from great, and the weight mud layer is regulated rolling cut whereby and just adjusted the shuttle line speed than also, as shown in Figure 2.

Another program is that break bar separates with the shuttle road wheel, and sparse its resistance of the reamer of break bar is little, makes rotating speed fast, in mud layer, cut sliding mode in strand all the time, break bar beam warp NGW planetary reduction gear slows down many times and connects with the shuttle road wheel, its slow-speed the break bar axle outside, but two-wheeled is the equidirectional rotation of coaxial line when working.

Silt separates and concentration process: adopt sand job requirements silt sometimes and separates or need far send and dislike when being with dilutional hyponatremia to concentrate, then the silt water of guiding pump outlet enters hydrocyclone J from tangential direction, get rid of gravel to wall by the centrifugal action of eddy flow and fall to outlet along conical tube, band hydraulic pressure is delivered to and is subjected to the battle field on the bank, and the muddy water at whirlpool center then upwards has pressure to put through gate valve J1 restraining through central tube.As shown in Figure 3.

Sailing method: quote the hydraulic jet propulsion technology, by spiral shell pump fall-back, establish speed drop to 1/2, then pump lift reduces to 1/4, and shaft power reduces to 1/8, as shown in Figure 4; Pump discharge send water to spray water backward to stern two nozzle G14 through left and right valve G13 through reducer tee, and then ship advances, the control rudder, then can about turn.The suction nozzle of this moment has hung mud layer and has only inhaled clear water, has also cleaned pump chamber and suction, comb road whereby.

Claims

1. known shallow water hydraulic dredger, form by hull, power-equipment and mechanism's three parts of dredging, power section contains diesel engine, generator, and the mechanism of dredging comprises operation piling bar, winch, reamer wheel, soil-suction head, suction mud pipe, shell pump etc., and piling bar is the centre of location during operation, travelling winch, make hull do the circular arc swing by anchor system, reamer is cubic metre of earth cutting scarifying under water, and delivers to suction mud and gulp down mouth, Lian Shui band mud is delivered to the spoil ground, and the traction shuttle running type of the present invention large junk of dredging is characterised in that:

A) fore at dredge boat A is provided with cable traction device B, it by electromagnetic adjustable speed motor through reducer, clutch, the vertical reel B1 of drive, on the reel wire rope B2, its outer end is thrown along the pathway the place ahead of dredging and is buckled in anchor B3, close clutch then reel wire rope is involved in slowly, hull is subjected to the anchor traction to advance its adjustable-speed 10～100m/h

B) guiding device C is arranged under draw-gear, central vertical tube C1 is on the bow arranged, in insert and can the arm of sensing C3 be arranged on the bar with the round bar C2 of depth of water lifting, the front end bracelet is by steel wire penetrating, bar hypomere palintrope band fork, dress monolithic directive wheel C4, its center is bordering on the reel axis and overlaps, directive wheel advances with hull, the mud layer rolling cut is gone out wire casing one, and it is that stern shuttle road wheel makes the instantaneous centre that swings about hull

C) capable the dredging of shuttle inhaled the mud combined unit: it is loaded on the stern two floating pipe inner shafts bearings by the steel pipe G2 of both sides, top band pivot, the top is connected to pump inlet with flexible elbow G1, following termination soil-suction head G3, on the tube wall to establishing major axis G4, upper end and gear reduction motor G5 are with chain drive, break bar G6 is adorned in the lower end above suction nozzle, it skim under the suction nozzle to grating revolution blowdown, scrape loose silt, suck by suction nozzle, by the continuous force feed of shell pump E to being subjected to the battle field, this break bar is again the shuttle road wheel simultaneously, it just is being subjected to the top motor, counter-rotating drives, and half swings about rolling on the silt layer, as weaves cotton cloth and shuttle back and forth so, advanced by traction in conjunction with fore satisfies in flakes desilting continuously or digs sand, capable of its shuttle is adjustable, from one, two meters to ten meters

D) the air water swap tank is regulated the rolling cut ratio: at the terminal dress of dredging tube air water swap tank H, below perforate, top be with the gate valve K2 of air compressor machine K on pipe K1 and the ship and bypass valve K3 communications and liaison mutually, calms the anger into jar and draining, suction nozzle weight reduction then, the only light sand bed of pressing is closed the air inlet adjustment bypass valve, makes jar exhaust and water-filling, then suction nozzle weighs and the weight sand bed, in order to regulate the rolling cut ratio of the capable break bar of shuttle, controlled the shuttle line speed

E) silt separates and concentrates: when requiring mud, sand to separate maybe must to concentrate far to send, the silt water of guiding pump outlet is gone into waterpower cyclone J from tangential direction, centrifugal action by eddy flow, get rid of gravel in wall, fall to outlet along conical tube, the floating pipe of band hydraulic pressure warp let-off water surface G10 is the battle field extremely on the bank, and the outstanding turbid muddy water that is in the whirlpool center is then upwards controlled through gate valve J1 through central tube, there is pressure to put

F) hydraulic jet propulsion navigation: suction nozzle is hung sand bed, only inhale clear water, directive wheel also promotes, and allow the diesel engine Half Speed move, then running power only is the full power 1/8 that carries, allow the pump discharge clear water send to go out stream by two gate valve G13 from the nozzle G14 of stern both sides and become hydraulic jet propulsion navigation, speed per hour 5～10km through the osculum of reducer tee.