At present, the rotating water distributor used in the biological filter is also called the pulse water distributor, and the water distributor vertical shaft and the rotating body are closed with mercury. Due to the pressure of running water is not balanced, the suspension of the extrusion and water distribution equipment overhaul, resulting in a large number of mercury into the water. According to the movement of our factory for more than and 20 years, every year the tablecloth for water more than 15 kilograms of mercury loss, loss of 10 thousand yuan, resulting in two pollution is more serious. In order to solve the problem of the two pollution, we have developed a new type of mercury free water distributor. The structure and process of mercury free water distributor is divided into two parts, namely, the central fixed part,
Cloth water is a certain amount of water in a certain area of work, the most common is the uniform distribution of water on the working surface. Device for completing this task is called water distributor. The common water distributing device is a perforated pipe, a spray head, a filter head and a rotary water distributor. For example, water distributor sand filter is composed of trunk - Branch - cloth hole composed of the underside of each pipe are evenly arranged so many holes diameter holes, filter backwash water from the pipe to the branch pipe, the pipe hole flow to the uniform sand flushing filter. A rotary water distributor is a perforated pipe which can be rotated, and is often used in water treatment.