Slurry Heaters

Starch cooking with Pick Heaters

The Pick "BX Series" of Direct Steam Injection Heaters is designed for use in paper mills and ethanol plants where high volumes of starch can be cooked in-line. The generous flow-through design assures negligible pressure drop in the slurry, and provides thorough cooking at a precisely controlled temperature.


The low velocity design minimizes mechanical shear of the starch granules... an important consideration for cooking most cationic starches.


These heaters can also perform "double duty." They are often used to pre-heat water which is then blended with the starch powder to form the initial slurry. The slurry is then pumped back through the same heater for final cooking.


These compact, non-plugging BX Direct Steam Injection Heaters are available to process flow rates in excess of 1000 GPM.


​Typical Applications Include:

  • Starch & Mash Slurries 
  • Waste Grease
  • Waste Oil
  • Corn Syrup
  • Waste Water
  • Other Viscous Liquids

Benefits of the Pick Slurry Heater:

The unique design of the Pick BX Slurry Heater offers key advantages over other high-velocity venturi devices.


Low Pressure Drop

Starch flows through the heater without obstruction. This results in negligible pressure drop when handling high viscosity formulations. 

Low Noise

Noise generation is significantly lower and pipe vibration virtually eliminated.


Non-shearing action provides uniform product consistency

Low Velocity Mixing

This provides a “thorough cook” of starch granules yielding a better cooked product.

How the Slurry Heater Works:


  1. Water-miscible liquid or product enters mixing chamber here.
  2. Steam and liquid mix thoroughly within the heater body.
  3. Heated liquid or product outlet.

BX Slurry Cooker

Sizing Formula:


Steam demand

(lb/hr)= 0.43 x flow(GPM) x ∆ T (ºF)


(kg/hr) = 0.092 x flow(LPM) x ∆ T (ºC)


Example: 200 GPM x 50ºF temperature rise x 0.43 = 4,300 lb/hr of steam. You would require a 6X50-3BX which has a maximum rated steam capacity of 5,000 lb/hr, and a maximum water flow rate of 500 GPM with welded flanged connections.

BX System


Steam Injection Constant Flow Starch Cooker

BX Slurry Heater Technical Specifications


Model No. 6X7-1BX 6X10-1BX 6X25-1BX 6X50-1BX 6X75-1BX 6X100-1BX 6X150-1BX 6X200-1BX 6X350-1BX 6X500-1BX
Steam Capacity Lb/hr 700 1,250 2,500 5,000 7,500 10,000 15,000 20,000 35,000 50,000
Kg/hr 320 565 1,130 2,260 3,390 4,520 6,780 9,040 15,820 22,600
Liquid Pipe Size Range (inches).  Flanged ¾ - 2 1 - 3 1 ½ - 4 2 - 4 2 - 6 2 ½ - 6 3 - 8 4-  10 4 - 10 6 - 12


Heaters are readily available with carbon steel or 316SS.  Other alloys/materials available upon request. Water and steam piping is available in flanged construction.