In selecting slurry pumps, there is no one-size-fits-all policy. By definition, a slurry is a semi-solid mixture of water and solid particles, usually derived from excavation or construction processes. The solid particles that make up the slurry may come from a wide range of products or wastes, which prompts the use of various types of pumps.
One of the important factors to consider in slurry pumping process is the nature and size of the solid particles transported in the process. This will eventually affect the degree of abrasion it can cause. Most slurry pumps are modified based on the type of slurry they handle. The modifications can be either minimal or extensive depending on the nature of the slurry.
If you need a slurry pump for industrial applications, you can choose a conventional sump pump. In industrial set-ups, the slurry often drains into a central sump and finally pumped to a collection tank. Solids in the slurry are plant debris and the percentage may be small. In that case, a conventional centrifugal pump with little or no modification is suitable.
Popular designs include the submersible and sump pumps. However, for special industrial applications, you can select specially designed pumps such as those with open or closed impellers. You can buy slurry pumps from reliable suppliers online or from industrial stores. For example, you can visit Global Pumps.
For municipal waste pumping, you can use slurry pumps designed to handle particular spherical diameters. Popular designs here include open or closed impellers, but with the necessary clearance between the vanes and the shrouds. For example, if you select a 4-inch pump, it should have a 4-inch sphere, a 4-inch suction nozzle, and a discharge outlet with a 4-inch diameter. The focus is on getting the right pump that discharges the slurry without clogging the impeller.
For paper stock applications, get a machine that can handle small particles in high densities, especially fiber material. Such material has a tendency to clog the pump as they float on water. The machine you choose should be able to maintain constant agitation to control the possibility of wrapping around the impeller. Unfortunately, constant agitation may cause pumping difficulties as air is drawn into the machine during the process.
The amount of fiber in the slurry is another factor to consider. Experts refer to it as consistency and expressed as a percentage. While consistency can reach up to 20%, it becomes a problem only when the percentage goes beyond 3%. When you shop for a suitable pump for the paper industry, it is advisable to get expert advice from the supplier or pump manufacturers so you know what can serve best in your application.
For example, in high-density applications, you can replace a conventional centrifugal pump with a positive displacement model to maintain efficiency. Conduct your research and identify a reliable supplier of industrial pumps in your area. After comparing prices and suitability for your specific application, you can order cheap slurry pumps from a reliable supplier to meet your needs.