G-type Horizontal Diesel Engine Pump

The G-type horizontal diesel pump dredger is a unit that combines a horizontal, single-stage, single-suction, cantilever centrifugal pump with a diesel engine in a direct connection. The pump body adopts a single pump housing structure and is connected by clamps or bolts, featuring a compact and sturdy design. Its flow components (such as the impeller, pump body, and guard plate) are generally made of high-chromium wear-resistant alloy cast iron and other materials to withstand the severe wear caused by the materials. This pump unit is designed for use in field or waterborne operations without a fixed power source and is the core equipment of dredgers, sand collectors, and mobile dredging systems.

Simple structure, easy maintenance:
Single pump housing with clamp connection: Lightweight, easy for installation, disassembly and maintenance.
360° adjustable outlet direction: The discharge port can be installed in any direction, greatly facilitating the on-site pipeline layout.
Cylindrical bearing assembly: Facilitates adjustment of the gap between the impeller and the pump body, and can be completely removed during maintenance. 

Outstanding large-particle handling capability: The flow channel design is wide and smooth, allowing the passage of the largest particles up to 82mm or even larger solid materials, effectively preventing blockages. It is specially designed for strong abrasive large-particle materials that are difficult to handle by ordinary slurry pumps.
High wear resistance and long service life: The flow components are made of high-hardness wear-resistant alloys, with good cavitation performance and high efficiency, capable of adapting to the demanding conditions of continuous transportation of high-concentration sand.
Self-powered, adaptable: Powered by a diesel engine, no external power supply is required. It is particularly suitable for scenarios such as rivers, lakes, and coastal areas where there is no power grid or for mobile operations.
Flexible transmission methods: According to the requirements of the working conditions, various transmission methods such as V-type belt, elastic coupling, gear reducer, hydraulic coupling, or variable frequency drive can be adopted.

Dredging and sediment removal: River dredging, port dredging, waterway dredging, lake dredging, reservoir dredging.
Sand mining and mining: River sand mining, extraction of sand and gravel, transportation of mine tailings and metal smelting slag.
Silt filling and land creation: Land reclamation by sea filling, transportation of silt and sand in silt filling projects.
Core equipment of dredgers: As internal or underwater mud pumps of various types of suction dredgers such as cutter suction dredgers and grab suction dredgers, for dredging and sand suction operations.

Power start and transmission: Start the diesel engine. Once the water temperature, oil pressure and other parameters are normal, the power is transmitted to the pump shaft through high elasticity clutch, gear reducer, coupling or belt and other transmission devices.
Mud suction: The diesel engine drives the pump shaft and the impeller to rotate at high speed. At the center of the impeller, a vacuum negative pressure is generated, and the mixed slurry (mud) obtained by crushing and loosening the underwater sediment through devices such as a cutter and a rake head is sucked into the pump through the suction pipe.
Energy conversion and discharge: The mud enters the impeller flow channel and gains kinetic energy and pressure energy under the action of centrifugal force. The impeller transmits mechanical energy to the mud, increasing its pressure and speed.
Boosted transportation: The high-speed mud flows out from the impeller and enters the conical pump chamber. The conical pump cavity further converts the kinetic energy of the mud into pressure energy and discharges the mud through the outlet pipeline to the designated discharge area (such as a storage yard, a mud transport ship or a reclamation area) several hundred meters or even several thousand meters away.
Condition adjustment: Operators can control the flow and lift height of the pump by adjusting the diesel engine's oil throttle (speed). During dredging operations, the diesel engine's working state should be controlled within the speed regulator's working range to avoid continuous overload and select the appropriate speed gear according to the transportation distance (long/short).

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