Screw Pump
A screw pump is a positive-displacement (PD) pump that use one or several screws to move fluids or solids along the screw(s) axis. In its simplest form, a single screw rotates in a cylindrical cavity, thereby moving the material along the screw’s spindle. The pressure capabilities of the pump are a function of the number of cavities. Delta progressive cavity pumps are available in a wide variety of materials – cast iron or stainless steel wetted parts and 10 standard elastomeric materials. Delta’s versatile progressing cavity pumps are rugged, compact and highly efficient. Fluids, which are delicate, shear sensitive or abrasive, low or high viscosity, with fibers, with high air content or large solids, can be conveniently handled by Delta’s progressive cavity pumps.
Gear Pump
A gear pump is a type of positive displacement (PD) pump. It moves a fluid by repeatedly enclosing a fixed volume using interlocking cogs or gears, transferring it mechanically using a cyclic pumping action. It delivers a smooth pulse-free flow proportional to the rotational speed of its gears. Gear pumps use the actions of rotating cogs or gears to transfer fluids. The rotating element develops a liquid seal with the pump casing and creates suction at the pump inlet. Fluid, drawn into the pump, is enclosed within the cavities of its rotating gears and transferred to the discharge.
Centrifugal Pump
A centrifugal pump is a mechanical device designed to move fluid by means of the transfer of rotational energy from one or more driven rotors, called impellers. Fluid enters the rapidly rotating impeller along its axis and is cast out by centrifugal force along its circumference through the impeller’s vane tips. The action of the impeller increases the fluid’s velocity and pressure and also directs it towards the pump outlet. The pump casing is specially designed to constrict the fluid from the pump inlet, direct it into the impeller and then slow and control the fluid before discharge.
High Concentrate Slurry Disposable Pump
Ash collected from Duct & Air preheater hopper, Electrostatic precipitator hopper is conveyed to 4 immediate surge hoppers through pneumatic conveying systems. Conveying air compressors for conveying air supply and instrument air compressors with air dryers for operating control instruments are used as main auxiliaries. Ash collected in Intermediate surge hoppers is either conveyed further to Fly ash silo through the pneumatic conveying system or is transferred to Ash Pond through the HCSD system. The piping used is of type pipe in the pipe (PIP).