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NC State 0.8-gallon (3-liter) Pressure Bombs for Cooking or Bleachingncsubombs1

Number available: 6

Construction: 316 SS

Capacity: 200 grams dry chips, 200 grams medium- to high-consistency pulp

Features:

  • each bomb has its own top-mounted valve for introduction of gases
  • each bomb has its own thermocouple for monitoring of temperature
  • rotating rack in hot-air oven permits six bombs to be processed at the same time (insures good mixing of chemicals and raw material)
  • two bombs coated with Teflon for maximum brightness development

Process options:

  • digestion
  • oxygen bleaching (high and medium consistency)
  • oxygen- and peroxide-reinforced extraction
  • pressurized peroxide

Paprican-Designed 3-gallon (11.4 liter) Batch Digester with Internal Moving Fingers

Capacity: 1.1 OD lb (500 OD grams) of medium- or high-consistency pulp; 250-400 AD grams of bulky nonwood material

Construction: 316 SS lined with Teflonpapricanbatchdigester1

Features:

  • 150 psig max. pressure
  • can be pressurized with oxygen or other gases
  • internal fingers lift and mix material; variable speed
  • external electrical heating bands

This reactor is well-suited for medium- or high-consistency bleaching of pulp with a variety of agents, including oxygen.

The reactor is also an excellent bench-scale digester for nonwood materials. The fingers provide a lifting and turning action similar to a screw-type digester.

7.5-gallon (28-liter) Direct-Steamed Rotary Batch Digester/Reactor

Capacity: 15 dry pounds chips or 5-6 dry pounds bulky nonwood materials

Construction: 316 SS

Features:

  • 250 psig max pressure
  • rotating action insures good mixing of chemicals and raw material
  • heating via direct steam injection
  • can be pressurized with oxygen or other gases

This vessel can be used for cooking or for bleaching at medium or high consistency.

Quantum Mini-Mixer

Perfect for bleaching small batches of pulp at medium consistency, especially when fluidization or intense mixing is required.

minimix1minimix2_000Capacity: 350 ml bowl = 30-50 g OD pulp at medium consistency

Construction: 316 SS

Features:

  • top-mounted impeller provides mixing or fluidization at variable speeds and intervals
  • bowl can be pressurized with gases up to 125 psig
  • heated block provides temperature control (110 C max.)
  • chemical injection port permits chemicals to be injected during the process

Quantum Mixer

The proven workhorse for bench-scale bleaching when intense mixing, gas-liquid mixing, or fluidization is required.

quantum1Quantity available: 2

Capacity: 1 gallon (3.8 liters), 1.1 lb OD 500 g OD) pulp at medium consistency

Construction: 316 SS

Features:

  • bottom-mounted impeller provides mixing or fluidization at variable speeds and intervals
  • bowl can be pressurized with gases up to 125 psig
  • heating bands provides temperature control
  • chemical injection port permits chemicals to be injected during the process