Paper sludge drying system

Wastewater station generally papermaking sludge dewatering process carried out, but often meet the requirements for subsequent use or advanced treatment, paper mill sludge water was still high, larger, not only increases the difficulty of transport, and to subsequent disposal of paper sludge great inconvenience. The growing problem, so to achieve papermaking sludge drying / reduction has become more urgent. Shandong Chenming Paper sewage treatment plant output of a large number of paper sludge landfill method has been used in the past, but the effect is not ideal. First, it takes a lot of land, and second, the underground paper sludge landfill to direct pollution of groundwater sources, will bring new disasters. In this grim backdrop, paper sludge generation begin to try. Sludge blending generating heat, not only can handle paper sludge, on the other hand you can also take advantage of the heat after the paper sludge containing organic matter brought by incineration. The moisture content down to 40%, which can be used to co-firing, semi-dry paper sludge state itself contains about 1000-2000 kcal heat value, there is still value in use. Which contains the value is the value of Shandong Chenming Paper in 2012 began construction of cogeneration utilization of sludge incineration project to collect and transport the paper sludge drying, sludge incineration of waste, which belong to the system scale projects. This part of the project Fu Hang drying green paper sludge treatment system invested more than 20 million yuan, the system consists of sludge conveyor section, paving receipt part, ground-source heat pump parts, solar greenhouse section, control section, deodorant part, dry material collected parts. The use of advanced automatic control equipment, and paper sludge pumping, automatic cloth, automatic turned mixed, automatic rewinding. Put into operation in 2013. Today, the average daily amount of paper sludge process of this project could reach 200 tons. According to the technical staff, in accordance with 1.3 tons of dry sludge (water content 40%) was added in the proportion of 1 ton of coal blending, generating electricity equivalent to about 3000-5000 degrees.