Hydrocyclone or Sand Trap

اطلاعات محصول

Hydrocyclone is one of the practical equipment in water purification that with the help of centrifugal force and the difference in weight and density of water and particles in it, has the ability to separate them. This sand trap is capable of purifying water without the need for electrical energy and only with the help of dynamic energy, and therefore it is one of the cheapest methods of water purification. Water treatment and adsorption of sand by hydrocyclone is able to remove 95% of solid particles in water that are more than 45 microns in size. In order to remove solids in water without electrical energy and filters, a cylindrical tank and a cone have been used in the construction and design of the hydrocyclone. A cylindrical tank is placed at the top and a cone at the bottom, and two valves are used as water inlets and outlets on the cylindrical tank and a valve at the end of the cone is used to discharge the deposited solid particles. The operation of the hydrocyclone is such that the inlet valve of the hydrocyclone is tangential to the cylindrical tank and after transferring water from it to the tank, centrifugal pumps create pressure in the environment. The pressure applied to the water causes its droplets to rotate. Due to the rotation of the fluid, solid particles that are denser than water are gradually transferred to the walls of the conical section. The rotation of the water inside the device and the effect of the centrifugal force cause the air inside the water to be evacuated and face a slight pressure drop. Finally, due to the centrifugal force, the particles remaining in the water are transferred to the lower mouth of the cone and the pure water droplets move upwards and are transferred out of the drain valve above the cylindrical tank. One of the important points in how Hydrocyclone works is the length of time the water stays in the tank and the sand trap. This takes about two to five minutes to allow enough solids to separate from the water droplets. One way to keep water droplets in the hydrocyclone for a long time is to reduce the size of the drain valve by one unit of the inlet valve. Benefits of water treatment with Hydrocyclone Despite the many methods used in water treatment such as nanofiltration and reverse osmosis that are able to remove very fine particles and even ions in it, in many cases a hydrocyclone can be a better option. The main reason is the advantages of this group of equipment according to the environment they use, the most important of which are: No need for electrical energy: This group of water treatment equipment operates only with dynamic energy and electrical energy has no application in them and therefore is quite economical in terms of energy consumption. Cheap price: The structure and materials used in the design of hydrocyclone are very cheap compared to other water treatment equipment and therefore do not need to pay much to use it in industrial and agricultural environments. Easy installation and maintenance: Unlike other equipment used in water purification, in which the filter is one of the main internal components, there is no filter in Hydrocyclone. As a result, there is no need for washing methods such as backwash or replacement and restoration of filters. In addition, the structure of this equipment is not complicated and as a result it has a long life and it is easy to maintain. Slight pressure drop: After water enters the hydrocyclone tank, the pressure applied through the centrifugal pump is not high and as a result, high water pressure drop is prevented. High particle removal efficiency: The use of centrifugal force in the operation of the hydrocyclone causes 95% of the solid particles in the water to settle. As a result, it can be used for industrial and agricultural purposes.