Loading patent…
AssigneeDanmarks Tekniske Universitet (DTU)
InventorsPreben Boje Hansen, Peter Stubbe, Hanne Birch, Kirsten Gronning Sorensen
Estimating the term…
The present invention concerns a method and an apparatus for separating dry matter from liquid, comprising providing an enclosed separation environment capable of being pressure regulated, and in said enclosed separation environment contacting at least one filter with a suspension accumulating dry matter on the at least one filter and passing the at least one filter through at least one set of rollers, whereby liquid is removed from the at least one filter, followed by removing the substantially dry filter cake from the at least one filter, wherein the above is performed in the same enclosed separation environment either under vacuum or overpressure. The invention further relates to obtaining a dry filter cake and the use of said filter cake, method and apparatus in, for example the food industry.
A method for separating dry matter from liquid, comprising the steps of
The method according to any of the preceding claims, wherein the suspension is provided as a continuous stream.
The method according to any of the preceding claims, wherein the filter is moved through the suspension.
The method according to any of the preceding claims, wherein the filter has a pore size of at the most 5 mm, such as at the most 4 mm, for example at the most 3 mm, such as at the most 2 mm, for example at the most between 1 mm, such as at the most 75 μm, for example at the most 50 μm, such as at the most 25 μm, for example at the most 10 μm, such as at the most 1 μm, for example at the most 0.5 μm.
The method according to any of the preceding claims, wherein the filter has a permeability of water of at least 20.000 l/h/bar/m2, such as at least 30.000 l/h/bar/m2, for example at least 40.000 l/h/bar/m2, such as at least 50.000 l/h/bar/m2, for example at least 60.000 l/h/bar/m2, such as at least 70.000 l/h/bar/m2, for example at least 80.000 l/h/bar/m2, such as at least 90.000 l/h/bar/m2, for example at least 100.000 l/h/bar/m2.
The method according to any of the preceding claims, wherein the filter is a band.
The method according to any of the preceding claims, wherein the filter is surrounded by a frame on at least one side.
The method according to any of the preceding claims, wherein the filter is coated.
The method according to any of the preceding claims, wherein the filter is charged.
The method according to any of the preceding claims, wherein the filter is magnetic.
The method according to any of the preceding claims, wherein the filter is grooved.
The method according to any of the preceding claims, wherein the filter is passing over at least one guide roller.
The method according to any of the preceding claims, wherein the at least one filter is made from Juncus or grass or metal or textile or artificial textile or plastic.
The method according to any of the preceding claims, wherein the at least one filter comprises at least one cavity.
The method according to any of the preceding claims, wherein the at least one filter is made from a flexible material.
The method according to any of the preceding claims, wherein the at least one filter is sterile.
The method according to any of the preceding claims, wherein the at least one filter is capable of filtering at least 500 l/m2/t.
The method according to any of the preceding claims, wherein the at least one filter is moving at a velocity of 0 km/h.
The method according to any of the preceding claims, wherein at least one roller from the at least one set of rollers is made from metal.
The method according to any of the preceding claims, wherein at least one roller from the at least one set of rollers has a temperature of below 0° C.
The method according to any of the preceding claims, wherein the at least one set of rollers is capable of exerting a pressure of 5 kg/cm2 on the at least one filter.
The method according to any of the preceding claims, wherein the substantially dry filter cake is removed from the at least one filter by the means of compressed air.
The method according to any of the preceding claims, wherein the at least one filter is cleaned by enzymes.
An apparatus for the separation of dry matter from liquid, comprising the steps of
A substantially dry filter cake obtained by the method as defined in the claims 147 and the apparatus as defined in the claims 48-94.
Dependencies are inferred from the claim text.