A dredging equipment

Abstract

The invention discloses a dredging apparatus. The dredging apparatus comprises an excavator with a hydraulic drive system, a lifting support, a hydraulic sand pump and hydraulic stirring wheels; the excavator, the lifting support, the hydraulic sand pump and the hydraulic stirring wheels are orderly connected together, wherein the hydraulic stirring wheels are arranged at the two sides of the hydraulic sand pump; the hydraulic drive system is composed of hydraulic pumps and multitandem valves; the hydraulic pumps are divided into a front hydraulic pump and a rear hydraulic pump, the two of which are connected with the multitandem valves, respectively; a standby valve port in the multitandem valve of the rear pump is in power connection with the hydraulic sand pump; the multitandem valve of the front pump is connected with a multitandem hydraulic reversing valve block group; all the reversing valve blocks of the multitandem hydraulic reversing valve block group are connected with the hydraulic stirring wheels at the two sides, respectively. The dredging apparatus is simple in structure and high in efficiency; the maneuvering characteristics and the hydraulic power source of the excavator are utilized, and the previous hydraulic system is modified to simultaneously drive the hydraulic sand pump and the hydraulic stirring wheels; the hydraulic driven stirring wheels are arranged at the left and right sides of the apparatus, respectively, and due to continuous stirring motion, sediment at a riverbed is loosened and delivered to the bottom of the sand pump, and therefore, the sediment is discharged by virtue of the power of the hydraulic sand pump.

Description

technical field [0001] The invention relates to the field of mechanical equipment, in particular to dredging equipment used for river courses, cofferdams and the like. Background technique [0002] The traditional river dredging method is to use electricity as the power source of the mud pump to block the river in sections, drain the water section by section, and then use manual excavation to flush the riverbed sediment to the mud pump to clean up the mud. The movement and construction are all done by intensive manpower, resulting in extremely low work efficiency, high labor costs, high loss rate of diesel engine power generation, low power utilization rate and high risk factor for operators, resulting in high dredging costs; some also use ship type pumps Suction, due to its bulky size and inconvenient handling, cannot work in small rivers and shoals; there is also the use of mud pumps to submerge underwater, dragging with winches on the shore, and the mud pumps are sealed. ...

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Problems solved by technology

[0004] The above-mentioned equipment uses a rotary tiller to break up debris, and then the mud pump cooperates with the suction of the suction pipe. During the cleaning of the river or the process, since the rotary tiller and the suction pipe are installed front and back, that is, the suction pipe is behind the rotary tiller. After smashing debris, a large suction force is required to achieve a certain dredging force, and the simple use of mud pumps with suction pipes has extremely limited suction and low efficiency, especially in engineering projects such as cofferdams, where the dredging mobility is weak , the safety is not good, and because the mud pump itself is not well sealed, it cannot complete the dredging work in deep waters, and cannot adapt to the conditions of different waters

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