Sludge alkaline stable drying technology SG-Mixer Drum disposal technology

              Author: Taida machine       Release time:2016-08-18
              Reading guidance:Main technical content 1. Basic principle: This technology mix quick lime with dehydrated sludge according to a certain proportion and form alkalinity and form a alkaline environment. Take advantage of
              Main technical content
              1. Basic principle:
              This technology mix quick lime with dehydrated sludge according to a certain proportion and form alkalinity and form a alkaline environment. Take advantage of chemical reaction to discharge heat and form high-temperature environment; disinfect; reduce moisture content; passivate heavy metals; change quality of sludge;
              2. Key technology
                Three elements should be considered in this technology: PH, contact time and lime amount used; this technology will meet the requests of municipal sludge disposal by changing parameters, running mode, alkaline added time, composite structure, heating mode and etc.
              Main technical index and conditions
              1. Technical index
              Reaction time: 2 to 3 minutes; drying time: 15 to 20 minutes
              Lime amount which should be added/weight ratio of sludge: 5% to 25%; adjusted according to different disposal methods;
              Moisture content of sludge discharged: lower than 60%; after being stocked for several days, the moisture content will be 25% to 35%;
              Granularity of sludge discharged: smaller than or equal to 10 mm
              2. Condition request
              Feed moisture content: lower than 85%;
              Main equipment and running management: The delivery system, the lime storage, transportation and dosing system, the mixer, the feed screw, the rotary kiln dryer, the lime precision feeding system, the finished product sludge transportation system, the deodorant system.
              Analysis of investment profits (take Langfang project as an example)
              A. Investment condition 
              Total investment: 6 million; equipment investment is 5.5 million
              Life service of main body: 20 years
              B. Analysis of economic profits
              Running days of one year: 345days
              Cost for running of one day: 80 yuan/t
              C. Analysis of environmental effects
              The process through its own reaction heat, can achieve a substantial reduction in water content of sludge, sterilization rate of up to 99% or more, while a part of heavy metals can be stabilized, but also to achieve the use of organic matter and nutrient elements.
              Technical service
              Can adopt BOT, EPC, BDO, TOT and other multiple service models, for customers to provide from the initial consultation, design, construction, equipment supply, installation, commissioning, operation and management of a series of sludge treatment technology services and project management services.
               
               
               

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