Follower plate pump

Follower plate pump

thumb|250px|A scooping piston pump used with follower plate.">

The red arrows show the flow of the material, the blue ones the movement of the piston and the white arrows show, how the air is sucked out underneath the disposable follower plateA follower plate pump is a device to pump highly viscous material directly from barrels. So it sometimes is called a barrel follower plate pump.It is applied in food manufacuring, resin casting, gluing and so on.

The principle

If an ordinary intake socket is lowered into highly viscous material, the material will flow so slowly, that after short time, the pump will take in air, because the socket is not fully covered by the material anymore. To avoid that, a plate, closing tight to the wall of the barrel by a soft sealing lip, is put on top of the material in the barrel. This plate is lowered slowly so that the material rises through a hole in the center of the plate into the intake socket. The pumped amount and the amount lifted through the plate have to be precisely the same. This has to be secured by appropriate control of the follower plate.

In such a device a scooping piston pump or an eccentric screw pump can be used for pumping the stiff paste.

Fundamental problems

To get rid of enclosed air when changing barrels, quite some material has to be pressed out of the barrel, causing a significant amount of waste.

The follower plate can be lowered too fast in such a way, that material is squeezed out at the side instead of being raised in the center.

Hardened material on the edge of the sealing lip of the follower plate can be carried into the material, causing waste of produced parts or process breakdown.

Solving the problems

A newly developed device of [http://www.scheugenpflug.de Scheugenpflug AG] in Germany has solved those problems. By using a specially designed disposable follower plate the problem of waste when changing barrels and of crumbs has been solved. A sophisticated control system, exactly relating the amount carried by the pump and the distance lowered of the follower plate, the plate will not dump into the material.


Wikimedia Foundation. 2010.

Игры ⚽ Нужен реферат?

Look at other dictionaries:

  • Oil pump (internal combustion engine) — This article is about a part in an internal combustion engine. For other uses, see Oil pump. Oil circulation system …   Wikipedia

  • Resin casting — A resin casting system is a technical installation to process casting resin for the purpose of filling, sealing, covering or soaking technical parts, especially in the field of electricity and electronics like transformers, LCDs and other small… …   Wikipedia

  • Lincoln Industrial Corporation — (Lincoln) is a manufacturer of automated lubrication systems, manual lubrication equipment and industrial pumping systems. Founded in 1910, the company has been responsible for many of the inventions that established modern lubrication practices… …   Wikipedia

  • Carburetor — Bendix Technico (Stromberg) 1 barrel downdraft carburetor model BXUV 3, with nomenclature A carburetor (American spelling), carburettor, or carburetter (Commonwealth spelling) is a device that blends air and fuel for an internal combustion engine …   Wikipedia

  • gasoline engine — Most widely used form of internal combustion engine, found in most automobiles and many other vehicles. Gasoline engines vary significantly in size, weight per unit of power generated, and arrangement of components. The principal type is the… …   Universalium

  • Distributor — This article is about the engine component. For other uses, see Distributor (disambiguation). Typical distributor with distributor cap Also visible are mounting/drive shaft (bottom), vacuum advance unit (right) and capacitor (centre) A… …   Wikipedia

  • Swashplate — A swashplate is a device used in mechanical engineering to translate the motion of a rotating shaft into reciprocating motion. Conversely it can translate a reciprocating motion into a rotating one and can be used to replace the crankshaft in… …   Wikipedia

  • Automobile — For the magazine, see Automobile Magazine. Car and Cars redirect here. For other uses, see Car (disambiguation). Automobile …   Wikipedia

  • Outline of automobiles — The following outline is provided as an overview of and topical guide to automobiles: Automobile (or motor car) – wheeled passenger vehicle that carries its own motor. Most definitions of the term specify that automobiles are designed to run… …   Wikipedia

  • Ignition system — For other uses, see Ignition system (disambiguation). An ignition system is a system for igniting a fuel air mixture. Ignition systems are well known in the field of internal combustion engines such as those used in petrol (gasoline) engines used …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”