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Pumps tanks mixers and sanitary fittings built in Wenzhou since 2002

Defoaming Machines

Defoaming Machine

A mechanical defoaming machine that uses centrifugal force to break fermentation foam and send the liquid back to the tank.

Overview

What This Pump Does

The DP series defoaming machine is used mainly in fermentation processes for yeast raising, amino acids and vinegar, and is widely used in pulp and paper washing systems.

The machine uses centrifugal power to break the foam during fermentation and separate the liquid from the gas. The separated foam liquid returns to the fermentation tank, which reduces the loss of escaped liquid.

  • DP series mechanical defoaming machine
  • Centrifugal power used to break foam
  • Separates liquid from gas and returns the liquid
  • DP-F version for closed tanks

Key Benefits

What Mechanical Defoaming Changes

No Chemical Added

Foam is broken by centrifugal force, so nothing is introduced into the fermentation.

Liquid Returns To The Tank

Separated liquid goes back into the vessel instead of being lost as carryover.

Two Mounting Versions

DP-F for closed tanks and DP-K for open tanks and pools.

Useful Beyond Fermentation

Also applied in pulp and paper washing systems where foam carries liquid out of the circuit.

Application Scenarios

Where It Is Installed

Yeast And Amino Acid Fermentation

High aeration processes where foam forms continuously through the batch.

Vinegar Production

Aerated acetic fermentation with persistent foam.

Pulp And Paper Washing

Washing systems that foam heavily and lose liquid over the top.

Who It Is For

  • Fermentation plants producing yeast and amino acids
  • Vinegar producers
  • Pulp and paper mills
  • Process engineers reducing chemical defoamer use

Problems It Solves

Product is lost as foam

Breaking the foam and returning the liquid reduces the loss of escaped liquid from the vessel.

Chemical defoamer affects the batch

Mechanical defoaming adds nothing to the fermentation, which matters for product quality and downstream processing.

Working volume is limited by foam

Controlling foam lets the vessel be filled closer to its capacity.

Technical Features

How It Is Built

  • DP series mechanical defoaming machine
  • Centrifugal power used to break foam
  • Separates liquid from gas and returns the liquid
  • DP-F version for closed tanks
  • DP-K version for open tanks and pools
  • Applied in fermentation and in pulp and paper washing

Specifications

Technical Data

Machine selection follows vessel type, headspace and how quickly the foam forms. Send those with the enquiry.

  • DP series mechanical defoaming machine
  • Centrifugal power used to break foam
  • Separates liquid from gas and returns the liquid
  • DP-F version for closed tanks
  • DP-K version for open tanks and pools
  • Applied in fermentation and in pulp and paper washing

Materials And Process

What Goes Into Every Unit

Materials

  • Stainless steel wetted components
  • Rotor assembly for foam breaking
  • Mounting arrangement for the vessel

Manufacturing And Assembly

  • Rotor machining and balancing
  • Assembly and mounting preparation
  • Run test before dispatch
  • Documentation issued with the machine

Quality Control

  • Rotor balance checked
  • Run test before dispatch
  • Documentation supplied with the order

Customization Options

  • DP-F or DP-K version
  • Mounting connection to the vessel
  • Motor rating and speed
  • Materials for the process

Compared With Other Options

Chemical defoamer dosingChemical defoamer adds a substance to the batch that may affect the product and downstream steps. This machine adds nothing.
Reducing aerationCutting air reduces foam and slows fermentation. Mechanical defoaming keeps the aeration rate the process needs.

Use Guide

Fitting A Defoaming Machine

Identify The Vessel

Closed fermenter or open tank, because that decides between DP-F and DP-K.

Check Headspace

The machine needs room above the liquid to work. Confirm the headspace at maximum fill.

Plan The Mounting

Nozzle or frame mounting, and the access needed to remove the rotor for cleaning.

Commission With The Batch

Set the machine during a live fermentation, since foam behaviour changes through the cycle.

Answers

Defoaming Machine FAQ

How does it break foam?

It uses centrifugal power to break the foam during the fermentative process and separate liquid from gas.

What happens to the separated liquid?

It returns to the fermentation tank, which reduces the loss of escaped liquid.

Which version suits my tank?

DP-F is applied to closed tanks. DP-K is designed for open tanks or pools.

Which processes use it?

Fermentation for yeast raising, amino acids and vinegar, and pulp and paper washing systems.

Does it replace chemical defoamer completely?

That depends on how stable the foam is. Send the process detail and we will say what is realistic for your batch.

Related Equipment

Related Equipment From The Same Line

The fermentation equipment this machine works alongside.

Stainless steel fermentation tank with conical bottom and support legs

Stainless Steel Tanks And Vessels

Fermentation Tank

Conical bottom fermenter from 200 L with jacket and insulation.

View specifications →
Vinegar acetator unit mounted in a fermentation vessel

Vinegar Acetators

Vinegar Acetator

VB series fermenter aerator for acetic fermentation.

View specifications →
Stainless steel mixing tank with agitator drive and conical legs

Stainless Steel Tanks And Vessels

Mixing Tank

Jacketed vertical mixing vessel from 100 L to 5000 L with agitation.

View specifications →

Need Defoaming Machine Sized For Your Duty Point

Tell us the process, the vessel type and the headspace and we will confirm the version and the mounting.