The invention relates to a suction sludge dewatering sand dredger which is characterized in that a sludge processing device is arranged on a boat body and comprises an extracting unit, a sieving unit, a heavy metal processing unit, a dewatering unit, a deodorizing unit, a dewatered sludge collecting unit and a wastewater processing and discharging unit. In the invention, the integral design of sediment dewatering processing device for urban landscape water pollution is realized; the sludge is immediately dried and dewatered while dredging; and the processed sludge can be directly used in the agricultural field, therefore, the pollution on the environment is avoided.

Suction sludge dewatering sand dredger

The invention discloses an operating mechanism of a bucket-wheel dredger and belongs to the technical field of ships. A bow crane is arranged at one end of a ship body. The bottom of the bow crane is movably arranged in a slide way. A check block is arranged in the slide way. The other end of the ship body is provided with a positioning column trolley. A cockpit is arranged on the ship body. A yield meter is arranged on one side of the cockpit. A bucket bridge is arranged below the other side of the cockpit. A bucket wheel is arranged at the end of the bucket bridge. An underwater dredge pump is arranged on the bucket bridge, an environment-friendly reamer is arranged in the bucket wheel, and one end of the bucket bridge is connected with a pivot gearbox. The operating mechanism is simple in structure, easy to operate and good in flexibility, the bow crane can freely move, the operating range is enlarged, the positioning column trolley with the better stability is adopted for ship positioning, dredging accuracy is effectively improved, and meanwhile working efficiency is improved.

Operating mechanism of bucket-wheel dredger

Disclosed is a bay internal tide automatic flow dredging and automatic flow sand washing and dredging technology system. The system comprises a body dam with an upper gate and a lower gate, an outer drainage dam and an inner drainage dam. The horizontal plane difference caused by flood tide and falling tide inside and outside the body dam drives seawater to form organized flow under the guidance of the inner and outer drainage dams, and the problem of internal bay silt storage is solved, hardened sludge can be stirred on the basis of the combined effect of a sand washing ship, pure sludge mud accounting for a small amount of sludge can be washed away by adjusting the flow through the gates of the body dam and seawater washing in the guiding direction of the drainage dams, sea sand accounting for a large amount of the sludge is washed out through the sand washing ship is adopted as a building material, the amount of sludge discharged into ocean is decreased, and economic benefits are increased. The technology can be widely applied to travel and tidal power generation bay dredging projects.

Bay internal tide automatic flow dredging and automatic flow sand washing and dredging technology system

The invention discloses a simple dredger for gravels in flowing water and a method for dredging the gravels. The simple dredger comprises a floating body platform, wherein a flow guide warped body is arranged at one end of the floating body platform; a dredging main unit is arranged on the floating body platform; positioning devices are respectively arranged on two sides of the floating body platform; an auxiliary running structure is arranged on the floating body platform; each positioning device comprises a vertical column support fixed at the edge on one side of the floating body platform; a vertical guide device is arranged on the side of the floating body platform, which is opposite to the vertical column support, and connected with a positioning pile; a positioning pile lifting device is arranged between the vertical column support and the positioning pile; a positioning downward pressing device is arranged between the floating body platform and the positioning pile; and a positioning pile limiting and positioning device is arranged between the floating body platform and the positioning pile. By the simple dredger, a dynamic running structure is not required; and the simple dredger is simple in structure and convenient to use.

Simple dredger for gravels in flowing water and method for dredging gravels

The invention relates to the field of trestles, in particular to a folding mobile trestle The folding mobile trestle comprises a trestle platform main body Foldable bank connecting channels are connected to the front end and the tail of the trestle platform main body correspondingly The trestle platform main body is provided with a propelling device used for driving the trestle platform main body to move and a control platform and is fixed to the bottom of the sea or the bottom of a river through fixing devices Brackets are arranged in the positions, close to the front end and the tail, of the trestle platform main body A pulley is arranged on each bracket A steel rope pulling cable is connected to each bank connecting channel through the corresponding pulley Compared with the prior art, the folding mobile trestle has the self-propelled capability; the ship-shaped design is adopted by the main body part; the folding bridge design is adopted by the bank connecting channels; the environment adaptability is good, and the bank connecting channels can be built in steep beaches; and pile foundation positioning is adopted, so that the operating environment is stable

Folding mobile trestle

The utility model solves the technical problems that aiming at the defects in prior art, the utility model provides a special desilting dredging equipment which is used for excavation dredging, long-distance conveying and has high solid content, wide application range of conveying media and no backwater secondary pollution, in particular to a dredging pumping ship for ocean tidal zone. The dredging pumping ship comprises a propeller 8, a deck crane 10, power stations 10, 11 and 12, an operation chamber 5 and a living chamber 6 arranged on a deck upper platform 4; wherein, a ladder 7 which can be climbed up and down by crew is arranged between the platform 4 and the deck; a hydraulic excavator 1 and a vibration sieve 2 with a material hopper are sequentially arranged on the front end of the pumping ship body; the rear end of the vibration sieve 2 is connected with a slush pump 3; a sieving material sliding channel 16 is arranged on the lateral surface of the vibration sieve 2; the equipments are connected with a control chamber through cables and are controlled in centralized way by the operation chamber 5. The dredging pumping ship can adopt self-excavation channel method to adapt to variable water level of ocean tide; the solid content in conveyed material is high, the efficiency is high, the sedimentation time is short and the backwater secondary pollution is prevented.

Sullage digging pumping vessel for ocean intertidal zone

The invention relates to an amphibious thick slurry pumping car, which comprises a pontoon caterpillar type chassis, a driving cab, a dredge pipe, a hopper, a vibratory screening device and a slurry mixing device. The amphibious thick slurry pumping car is characterized in that: the middle part of the car is provided with a displacement type slurry pump, a material distributing machine is fixed at the front part of the car; the material distributing machine comprises a bracket, a bench rack which can rotate for 360 degrees, a folding supporting arm and the dredge pipe, wherein the dredge pipe is fixed on the supporting arm and the lower end of the dredge pipe is connected with the outlet of the displacement type slurry pump. The amphibious thick slurry pumping car has the advantages: firstly, the car can be freely driven in marsh, shoals and inland rivers and lakes in cities; secondly, the slurry pumped by the displacement type slurry pump usually has high concentration of 50 percent to 80 percent; thirdly, the pumping distance is very long and is usually up to 1-2 km; and fourthly, no reflowing sewage is generated, thus avoiding the secondary pollution.

Fangyou Hu

Papers

Sullage digging pumping vessel for ocean intertidal zone

Amphibious thick slurry pumping car