Product Details

Product Description

Introduction of Sand Mining Dredge Machine

A Sand Mining Dredge Machine is a stationary or self-propelled vessel that uses a rotating cutter head to loosen the material in the bed (‘cutting’).

A suction inlet located beneath the cutter head (known as the suction mouth) is connected by a suction tube directly to one or more centrifugal pumps. The vacuum force at the suction inlet sucks up the loosened material. The suction tube and cutter head are attached to a ladder. The ladder with cutter head is positioned at the fore of the vessel.

On the aft side, the cutter generally has two spud poles. One spud pole (the auxiliary spud) passes straight through the vessel, while the other is mounted on a movable spud carriage, which can be moved lengthwise along the vessel or pontoon. Steel cables are used to move the ladder or cutter head back and forth, with the spud in the spud carriage as the centre of each concentric circle that it describes.

Items	Parameters
Manufacture	Qingzhou Dongfang Environmental Protection Machinery Manufacturing Co.,Ltd
Brand name	Dongfang Envrionment
Delivery Time	70 Days
Parts of the dredger
1. Type	Hydraulic cutter suction dredger
2. Basic parameters
Total length, width and height of the ship	35m 6m1.8m
Draught	1.2m
Dredging depth	12m
Diameter of the suction pipe	450 mm
Diameter of the flashing pipe	400mm
Discharging distance	1000m
Fresh water flow	1800 -2000m³/h
Dry pulp	300-350m³/h
Total installed capacity	980hp
3.Main chamber
(1) Length	12m
(2) Width	3.0m
(3)Height	1.8m
(4) Thickness of the sideboard	10mm
(5) Thickness of the baseboard	10mm
4. Edge storehouse
(1) Length	17m
(2) Width	1.7m
(3)Depth	1.8m
(4)Thickness of the sideboard	6mm
(5) Thickness of the deck	5mm
(6) Thickness of the baseboard	8mm
5. Excavating pump
(1) Manufacture	Shijiazhuang Pump Group
(2) Head of delivery	40-65m
(3) Model	WN300
(4) Rotating speed	400—550 r/min
(5) Efficiency	75%
(6) NPSHR	<4m
(7) Current size	241mm
(8) Fresh water flow	1600~2000m³/h
6. Main engine
(1) Manufacture	Jichai
(2) Model	Zc8190
(3) Power and rotating speed	980hp@1450RPM
(4) Quantity	1 set
7.Gear box
(1) Manufacture	CNPC Jichai
(2) Model	Hydraulic Transmission YOTF J650
(3) Quantity	1 set
8.Cutter head
(1)Model	Corona
(2) Wear-resistant parts	Replaceable alloy cutter
(3)Driven style	Hydraulic motor
(4) Diameter	1300mm
(5)Power of the cutter head shaft	100KW
(6) Rotating speed	0-30
(7)Quantity of the cutter tooth	20 Pieces
9. Ladder winch
(1)The tension of the second layer	80KN
(2) The rope speed of the second layer	0-20m/min
(3)The diameter of the wire rope	Φ22mm
(4) Driven style	Hydraulic motor
10.The travelling winch
(1) The tension of the second layer	80 KN
(2) The rope speed of the second layer	0-20m/min
(3)The diameter of the wire rope	Φ22mm
(4) Power	Hydraulic motor
11. Gauge pile
(1) Quantity	2
(2) The diameter	450 mm
(3) wall thickness	20mm
(4)Length	12m
(6)Drive style	Hydro cylinder
12.hydraulic cylinder
Length of the cylinders	2.5m
Inner diameter	130mm
Working pressure	12Mpa
Diameter of the steel rope	Φ24mm
13. Deck crane
(1)Model	DF-2
(2) Weight capacity	2 tons
(3)Working diameter	3m
14. Control room
(1). Major equipment	PLC console desk
(2) Air-condition	1 set
(2). Adjustable chair	1 piece
(3) Operating instructions and pilot lamp	1 set
15.Hydraulic system	Hydraulic pump uses gear pump, through the free end connected with the master gear box of the driver
16. Cabin	Equipped with bunker, ballast tank, drying chamber and fresh water storage
17.Anchor and anchor rope	Anchors: 2pieces 500kg each Every winch is equipped with 100 meters anchor rope at least and other necessary ropes, such as cable twisted ropes, safety line and suspender of the guide pile.
18 Generator set in the storehouse	Furi Marine generator set ,30KW,220/380V One set. Usage: Supply power for the windlass and positioning and charging the storage battery.
19Generator sets on the deck	Brand name: Weifang Huafeng, Power: 30kw, voltage: 220/380V. Usage: supply power for the equipment in emergency.
20Lights	8 sets of lights equipped in the both sides of the main engine cabin. 2 sets of lights are in the inside room of driving house. 2 sets of project lamps equipped on the back and forth of the top of the cab. One 500W spot light on the top of A-frame. 4 sets of 65 W lamps at the top and around of the driving house.
21Safety precautions	Two pieces of life jackets, life buoys and fire extinguishers
22Training	We will send 6-8 workers for basic operation and training.

Our Service

1.Customized design and pre-sale service.

2.Lifetime after-sale service.

3.On-site installation and worker training.

4.Provide wear parts in time.