Draft Tube Baffle (DTB) Crystallizer

详情

The Draft Tube Baffle (DTB) Crystallizer, used in applications requiring narrow crystal distribution, and larger average crystal size, has been examined widely in crystallisation theory.

Advantages of the DTB Crystallizer:
A. Capable of producing large singular crystals.
B. Longer operating cycles.
C. Lower operating costs.
D. Minimum space requirements, single support elevation.
E. Adaptable to most corrosion resistant materials of construction.
F. Can be easily instrument-controlled.
G. Simplicity of operation, start-up and shutdown.
H. Produces a narrow crystal size distribution for easier drying and less caking.
I. The product size varies only slightly with large changes in production

Basic Principles of the DTB Crystallizer:
A. Growing crystals are brought to the boiling surface where supersaturation is most intense and growth is most rapid.
B. The baffle permits separation of unwanted fine crystals from the suspension of growing crystals, thereby affecting control of the product size.
C. Sufficient seed surface is maintained at the boiling surface to minimize harmful salt deposits on the equipment surfaces.
D. Low head loss in the internal circulation paths make large flows at low power requirements feasible.