Abstract:
This invention relates to a separation system (10) for separating first solid particulate components from second solid particulate components having particle sizes which are smaller than that of the first solid components, wherein the first and second solid components are suspended in a liquid to form a mixture (12). The system (10) includes a first separating arrangement (11); and a second separating arrangement (13). The second separating arrangement (13) includes an endless screening belt/cloth (14) which is displaceable along a predetermined path and which defines a plurality of apertures (16) which apertures (16) are of a suitable size to permit the second solid components to pass therethrough and to impede the passage therethrough of the first solid components. The screening belt/ cloth (14) has a separating region (18) and the first separating arrangement (11) is configured to receive the mixture (12), to at least partially separate the first solid components from the second solid components in the mixture (12) and to feed the at least partially separated mixture (12) onto the separating region (18).
Abstract:
This invention relates to a separation system 10 for separating first solid particulate components from second solid particulate components having particle sizes which are smaller than that of the first solid components, wherein the first and second solid components are suspended in a liquid to form a mixture 12. The system 10 includes a first separating arrangement 11; and a second separating arrangement 13. The second separating arrangement 13 includes an endless screening belt/cloth 14 which is displaceable along a predetermined path and which defines a plurality of apertures 16 which apertures 16 are of a suitable size to permit the second solid components to pass therethrough and to impede the passage therethrough of the first solid components. The screening belt/cloth 14 has a separating region 18 and the first separating arrangement 11 is configured to receive the mixture 12, to at least partially separate the first solid components from the second solid components in the mixture 12 and to feed the at least partially separated mixture 12 onto the separating region 18.
Abstract:
Described herein is a sieve cloth (1) and a method of connecting the sieve cloth (1) to a sieve apparatus (10) of a type wherein an endless sieve cloth (1) is supported by a support belt (12) which, in operation, is structured in a manner allowing it to rotate around at least two spaced-apart turning rollers (14), wherein the method comprises the steps of: providing at least one sieve cloth sheet (1') having an upper side, a lower side, two side portions (7) and a first end portion (3) and a second end portion (5) extending between the side portions (7); bringing at least a portion of the sieve cloth sheet (1') into engagement with a portion of the support belt (12); positioning the sieve cloth sheet (1') against the support belt (12) by moving the support belt (12) around the turning rollers (14); bringing at least two adjoining end portions (3, ) into engagement with each other until the at least one sieve cloth sheet (1') forms an endless sieve cloth (1); and also a method of controlling the separation of solid particles from a fluid. (Figure 3) 1
Abstract:
The present invention relates to a system for de-bunching a harvested stream of fruit in bunches, said system being intended to be mounted on board a harvesting machine. The de-bunching system includes an endless screen (1) that is driven between an upstream transverse shaft and a downstream transverse shaft (2), said screen including openings adapted to the allow the fruit to pass through and to retain undesirable components of the stream on said screen. The system further includes a driven rotary member (3) overlying said screen between said transverse axes, said rotary member including radial de- bunching fingers (4) which, upon rotation, are adapted to interact with the stream on the (1) screen in order to bring about separation of fruits attached to the bunches. The system further includes a device (5, 6) for lateral evacuation of the undesirable components, said device including means for conveying said components from the rear side of the downstream transverse shaft (2) to a lateral area of ejection of said components.
Abstract:
The present invention concerns a forming box for use in dry forming of a mat of fibrous material, said forming box comprising a housing with an open bottom for providing direct access fort the fibres onto an underlying forming wire and a vacuum box underneath said forming wire; an inlet for supplying fibre material into the inside of the housing; a number of spike rollers are provided in two rows in the housing between the fibre inlet and the housing bottom, wherein an endless belt screen is provided inside the housing having an upper run between two rows of spike rollers and a lower run closer to the open bottom of the forming box. The endless belt screen which runs between two rows of spike rollers and the lower part of the forming box, ensures an even distribution of the fibres just as fibre lumps or oversized fibres are prevented from beinglaid down on the forming wire and retained on the belt screen in the forming box and transported away from the lower portion of the forming box and returned to the spike rollers for further disintegration. In a forming box according to the invention, using an endless belt screen as the sieve or fibre screen is self-cleaning since the oversized fibres are retained on one upper side of the lower run of the endless belt screen and released on lower side of the upper run of the endless belt screen because of the vacuum underneath the forming box and the forming wire.
Abstract:
A vibratory separator, such as a shale shaker, comprising a base (12), a basket (18) and vibratory apparatus (16) for vibrating the basket (18) characterised in that, the shale shaker further comprises at least one roller (24) for drawing from or dispensing screening material. A method for replacing worn or damaged screening material in a vibratory separator or shale shaker, the method comprising the step of drawing or dispensing screening material from a roll of screening material directly into the vibratory separator or shale shaker.
Abstract:
Apparatus for filtering cuttings from drilling fluid comprises a filter disposed in an endless recirculating loop (10), an inlet (30) for receiving drilling fluid and cuttings from a drilling well and disposed to direct the drilling fluid and cuttings onto the filter (10), and an outlet (50) disposed to receive filtered drilling fluid from the filter (10), for supply of the filtered drilling fluid to a drilling well.