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Tiger Tanks Soil Plant SOP Parameters (Startup (Pre-Startup Checks (should…

- - - - Dryer rotation: 1 - 5rpm
      - Nominal feed: 2;0-5.0 tons/hr
      - CRUCIAL OPERATING PARAMETERS
        
        Soil Discharge Temperature: 800-950 deg F
        
        Pugmill discharge temp: 150-200 deg F
        
        Converter unit outlet temp: 1400-2000 degF
        
        Baghouse Inlet: 300-400 degF
    - - Burner suction draft: 0.20-.25 In. H2O
        
        is there a gauge missing here? which gauge is it?
      - Gas stream exiting dryer: 50-100degF higher than soil processing temperature
      - Dryer warmup - exhaust gas temp: 850 degF in 30-40min
      - Dryer should not be heated up too quickly because - components and ducting absorb heat and expand slightly
      - Dryer unit should be kept as a slight negative draft at all times
      - Dryer warmup period could co-incide with last stage of coverter warmup
      - Dryer should be started when converter temp within 350 def of operating temperature...so about 1100 deg F (to light the burner, draft should be about .7"H2O)*
      - Rotate drum when temperature at 350 deg F*
    - - Oxygen content of gas stream exiting Converter Unit - 4-6%
      - Converter warmup - 0 - 1500 degF in 90 mins. As burner level changed, system draft affected..should maintain 0.0-0.4 in H20
      - as gases burn, they will add energy to the system and cause temperatures to rise
    - - Evaporative Cooling Unit - Targeted water delivery pressure - 75-80psi. Targeted atomizing air pressure = 85-90psi
      - Evaporative Cooling Unit - (reduce temp of gases entering baghouse) - Inlet temperature to baghouse to not exceed 400 degF. Targeted outlet temperature 325 degF
      - Nozzle Inspection: Periodic inspection should be done on a regular basis, to ensure water spray is effective. Water will cause buildup on walls
    - - Baghouse Average operating temperature: 325 deg F
      - Baghouse exit gas temperature should not fall below 270 degF. or liquids can condense out of the gas stream and build up on the baghouse walls
      - Baghouse tube sheet differential, activates a pulse jet cleaning system. pressure drop 3-6 inches H2O. Pulse cleaning system to be tuned to allow cleaning system to be on while maintaining a min of 3" pressure drop. Pulse fast as possible while maintaining 3" drop. Air pressure to system 40-60psi.
      - Baghouse Inlet temperature: must not exceed 400 degF
      - Pulseboard to be programmed
        
        200-300 milliseconds duration of pulse
        
        time between pulses should be about 9 seconds, for 9 row baghouse
      - Bags will last longer if pulsed at 60 psi
    - - NaOH (pH loop) on automatic, so NaOH added as necessary
      - make up solution received at 46% w/w NaOH
      - fresh water level to be maintained
    - - ECC Atomizing Air: 70-90psig
      - Baghouse cleaning air: 40-60psi
      - Air Operated Control Valves: 20-40psi
    - - should be turned on before lightoff to confirm proper functionality
      - should be kept running for 10 mins after rotary dryer is shut off and 10 mins after baghouse pulse have been turned off
      - must prevent material from sitting on airlocks. It will draw moisture and solidify. This is why airlocks should be run as described above.