Liquid purification or separation – Structural installation – Machinery
Patent
1997-05-13
1999-08-03
Upton, Christopher
Liquid purification or separation
Structural installation
Machinery
210524, 210528, B01D 2106, B01D 2118
Patent
active
059320940
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a collection container with transport pump for pumping liquids containing production residues such as, for instance, chips, coolant and lubricant, in accordance with the preamble to claim 1.
Machining residues such as are produced, for instance, in the machining industries must be removed from the machine, together with the coolant or lubricant used there, in order to separate the chips from the liquid elsewhere. For this, the mixture is pumped or drawn through pipelines.
2. Description of the Prior Art
In the systems known up to now, the comminuted chips, as for instance in EP 518 095, are collected in a collection container having a slight inclination, so that the chips are conveyed by the flow of the fluid to the pump, which is arranged at the lowest point. Another known variant consists of a funnel-shaped container with relatively steep walls, so that the chips pass by gravity into the pump, which is arranged at the lowest point. The known collecting containers have been found to have the disadvantage that either the transport of the chips taken place only when there is only a slight volume of feed stream or the containers have too great a structural height.
From EP 0 269 124 a highly consistent tower of material is known which has the features contained in the preamble to the main claim. In that device, scraper plates are arranged on the radically extending rake arms, which plates bring the material to be removed by pumps arranged below the floor of the container together on a circular line around the center of the circular-cylindrical collection container. In this known device, there is the danger, due to the development of the rake arm, that larger particles will become jammed below the scraper. Furthermore, a large structural height is necessary due to the arrangement of the pumps below the floor of the collection container.
French A-2 176 618 discloses a device for the dosaging of granulate in which rake arms are present in a cylindrical collection container they conducting the material lying on the bottom of the container to openings arranged on its outer circumference. The rake arms have an inner rake-arm section with a curved transport surface and an outer rake-arm section with a straight transport surface.
Japanese A 62 10 198 discloses a device for drawing coolant which contains cutting ships out of a collection container. For this purpose a suction pipe which is connected at its other end with a corresponding separator for separating the coolant from the chips extends into the collection container. In addition, a corresponding vacuum suction device is provided.
SUMMARY OF THE INVENTION
The object of the present invention is to provide a device which is of only slight structural heights and nevertheless assures an optimal removal of the chips by means of the transport pump.
This object is achieved in accordance with the invention by a collection container having the features set for in the main claim. Further advantageous embodiments can be noted from the dependent claims.
The collection container of the invention is developed as a cylindrical pot having a substantially flat container floor and a rake which travels over the container floor and conducts the chips which have deposited on the container floor to the transport pump. Such a collection container is of reduced height and is specified essentially only by the volume which is received and must be transported away within a given period of time. The machining residues can be fed to the collection container at any desired point. The same is true of the carrier fluid. The floor of the container is flat so that the rake, which travels over the floor of the container parallel to its surface can bring the chips together at a point where the transport pump is arranged. To assist in this, the floor of the container can, if the rake is developed accordingly, also have a slight inclination. The transport pump is arranged off center in the collection containe
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Binder Bruno
Riegert Klaus
Riegert Wolfgang
Alpirsbacher Maschinenbau GmbH & Co.
Upton Christopher
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