As a single stage single suction volute pump, the sand pump model PS features wide flow passage for fair-sized gravels and the flow regulation within a relatively large range. . Hence, this pump can be widely used to convey the materials like ore pulp, silt and slag etc. in metallurgy of non-ferrous metal, mining and concentration, coal, electric power and river dam foundation preparation projects etc. . This machine also features low cost, high effectiveness, high efficiency and good economic returns.
Sand pump is also called gravel pump, which is a kind of centrifugal mud pump. It’s used to transport suspension containing sand, slag, etc. The impeller is mostly open. Gravel pump is mainly used for continuous transportation of strong abrasive materials which can not be transported by general slurry pump due to too large particles. It is suitable for dredging, sand absorption, river dredging, mining and metal smelting slag transportation.
The D and G type pump is single casing structure without lining. The volute, pump cover and impeller are made of wear-resistant metal. The connection of the volute and the pump cover adopts a special clamping structure. And the pump outlet direction can rotate freely, which is convenient for installation and disassembly. This type of pump has a large flow passage, which is suitable for conveying gravel, mud and slag slurry with large solid particles.
There are also many other type of pumps in our product line. Such as AH horizontal centrifugal slurry pump, ZJ & ZJL type slurry pump, submersible slurry pump, dredge pump, etc., Different types of pumps are suitable for your different needs.
A sand & gravel pump main consists of volute, impeller, cover, frame plate liner, bearing assembly, frame, stuffing box, shaft and so on.
The main working parts of centrifugal pump are impeller and casing. The impeller device in the casing is located on the shaft and connected with the prime mover to form a whole. When the prime mover drives the impeller to rotate, the blades in the impeller force the fluid to rotate, that is, the blades do work on the fluid along its moving direction, thus forcing the pressure potential energy and kinetic energy of the fluid to increase. At the same time, under the action of inertial force, the fluid flows from the center to the edge of the impeller, and flows out of the impeller at a high speed, enters the extrusion chamber, and then discharges through the diffusion tube. This process is called water pressure process. Because the fluid in the center of the impeller flows to the edge, a low pressure area is formed in the center of the impeller. When it has enough vacuum, under the action of the pressure at the suction end (generally atmospheric pressure), the fluid enters the impeller through the suction chamber, which is called the water absorption process. Due to the continuous rotation of the impeller, the fluid is continuously discharged and inhaled, forming a continuous work.
The working process of centrifugal pump (including slurry pump) is actually a process of energy transfer and transformation. It transfers and transforms the mechanical energy of high-speed rotation of the motor into the pressure energy and kinetic energy of the pumped fluid through the blades of the pump.
Advantages and Features
G Type gravel pump is mainly horizontal, single casing structure centrifugal pump. Special clamp is used to clamp the pump body and cover. The outlet direction of the pump can be at any position of 360 degrees, so it is easy to install and use.
The bearing assembly of sand gravel pump adopts cylindrical structure, which is convenient to adjust the clearance between impeller and pump body, and can be removed as a whole during maintenance. The bearings are lubricated with grease.
The shaft seals of gravel pump include packing seal, secondary impeller seal and mechanical seal.
Gravel pump has wide flow channel, good cavitation performance, high efficiency and wear resistance.
Transmission mode mainly includes V-belt transmission, elastic coupling transmission, gear reducer transmission, hydraulic coupling transmission, variable frequency drive device, silicon controlled speed regulation, etc.
Wear resistant alloy with high hardness is used as the material of flow passage parts.
Using a variety of speed and variants to make the pump work in the best operating conditions. It has long service life, high operation efficiency and can meet many kinds of harsh transportation conditions.