Abstract

The invention relates to a centrifuge for separating screening material (90), having a drum (10), in particular a screening drum, which extends from a first side (10a) in the transporting direction (30) of the screening material (90) to a second side (10b), wherein an internally hollow conveyor screw (2) having a screw flight (20) arranged on the outside of the conveyor screw (2) is arranged within the drum (10), wherein the screw flight (20) corresponds to the internal profile of the drum (10), wherein the centrifuge furthermore has at least one washing line (5a, 5b), through which a washing solution (50) is passed into the interior of the conveyor screw (2), wherein the conveyor screw (2) furthermore has at least one radial washing opening (27a, 27b, 27c) for passing through the washing solution (50) to the drum (10), wherein, on an inner wall (3) of the conveyor screw (2), at least one weir (7) that extends at an angle (a; b) to the inner wall (3) is arranged downstream and/or upstream of the washing opening (27a, 27b, 27c), in order to back up at least a part of the washing solution (50) introduced into the interior of the conveyor screw (2).

IPC Classes  ?

• B04B 1/20 - Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles discharging solid particles from the bowl by a conveying screw coaxial with the bowl axis and rotating relatively to the bowl
• B04B 15/12 - Other accessories for centrifuges for drying or washing the separated solid particles
• B04B 3/04 - Centrifuges with rotary bowls in which solid particles or bodies become separated by centrifugal force and simultaneously sifting or filtering discharging solid particles from the bowl by a conveying screw co-axial with the bowl axis and rotating relatively to the bowl

Abstract

The invention relates to a screen segment for mounting in a conical basket (10, 20) of a screen centrifuge and for forming, from a plurality of screen segments, a screen basket within the support basket (10, 20) of a screen centrifuge having an inlet side and an outlet side, wherein the screen segment widens according to an angular section of the conical shape of the supporting basket (10, 20) from an inlet edge for arrangement on the inlet side of the screen centrifuge in the direction of transport of the material to be screened towards a wider outlet edge for arrangement on the outlet side of the screen centrifuge. The screen segment is formed in a number of parts in the direction of transport of the material to be screened, more specifically from at least two segment parts that can be mounted independently of one another, the screen segment comprising at least one inlet segment part (12b, 22b, 32b) with the inlet edge for arrangement on the inlet side and one outlet segment part (12a, 22a, 32a) with the wider outlet edge for arrangement on the outlet side, and in particular the screen segment is formed in two parts in the direction of transport of the material to be screened.

IPC Classes  ?

• B04B 7/18 - Rotary bowls formed or coated with sieving or filtering elements

Abstract

The invention relates to a fastening system for screening machines and/or jiggers for fastening replaceable screen lining segments (10, 20) and/or replaceable wear protection elements in or on a screening machine comprising at least one vibration-generating swing frame (40) which receives the screen lining segments (10, 20) and/or carries the wear protection elements, wherein the screen lining segments (10, 20) and/or the wear protection elements are fastened to the swing frame (40) by means of mounting strips (11, 21), the mounting strips (11, 21) being magnetically fastened to the swing frame (40).

IPC Classes  ?

• B07B 1/46 - Constructional details of screens in generalCleaning or heating of screens
• B05B 3/18 - Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with elements moving in a straight line, e.g. along a trackMobile sprinklers

Abstract

The invention relates to a method for determining the individual particle size classes of a material sample using a multi-deck screener (1) having a plurality of screens arranged one above the other with downwardly decreasing hole size of the screens for separation of the particle size classes. Once the material sample has been applied to the uppermost screen for the duration of a first definable time period and/or until the end of the separation of the particle size classes has been detected, a classification phase is performed in order to separate the particle size classes and then a transport phase is performed for the duration of a second definable time period in order to transport away the material sample separated in accordance with particle size classes to individual collection containers associated with the particle sizes. The screens of the multi-deck screener (1) are excited to vibrate during the classification phase and during the transport phase, the screens being excited to vibrate, during the transport phase, at an angle relative to the vertical, such that the throwing movement resulting from the vibration excitation has a component in the direction of an outlet of the screens arranged at the end face of each screen. The invention further relates to a multi-deck screener (1) for carrying out the method.

IPC Classes  ?

• G01N 15/02 - Investigating particle size or size distribution
• B07B 13/18 - Control

Goods & Services

Filter machines; separators and centrifuges; separating centrifuges; screening machines; sieves; sieve trays; sieve drums; vibration screens; vibrating screens; round screens; curved screens; resonance vibrating screens; electromagnetic screens; large analysis screens; size reduction machines; roller mills; vibrating mills; tubular vibration mills; drum mills; hammer mills; disc vibration mills; taper mills; double toggle jaw crushers; roller crushers; impact crushers; gyratory crushers; air suspension devices and systems for the aforementioned machines; pneumatic delivery systems; flotation devices; classifying machines; sand and gravel processing machines; bulk material processing machines; vibrating screen centrifuges; screen centrifuges; dewatering devices made of pumps [machines]. Laboratory machines and equipment, namely analysis machines, tube centrifuges, sample collectors, sample dividers and laboratory cone mills; centrifuges; separating centrifuges for laboratory purposes; dosing machines; testing sieves; software for mechanical engineering. Dewatering apparatus; dehumidifiers; fluidised bed dryers; clarifiers and clarifying machines. Services of an engineer, technical engineering consulting; development, programming and implementation of software; engineering services for the abovementioned machines and plants; technological consultancy in particular relating to process optimization; technical inspection [testing] of the machines and plants within the scope of commissioning and trial operation.

Abstract

The invention relates to a fastening system for screening machines and/or setting machines for fastening replaceable screen lining segments (10, 20) and/or replaceable anti-wear elements in or to a screening machine having at least one frame (40) which receives the screen lining segments (10, 20) and/or supports the anti-wear elements. For fastening of a screen lining segment (10, 20) and/or of an anti-wear element at least one adapter (30) is fastened to the frame (40), the adapter (30) having at least one magnet (31, 32). The magnet interacts with the frame (40) and/or with at least one ferromagnetic coupling element (11, 21) arranged in a vibration-proof manner in or on the screen lining segment (10, 20) and/or anti-wear element and in this way produces a magnetic connection between the adapter (30) and the frame (40) and/or between the adapter (30) and the screen lining segment (10, 20) and/or anti-wear element. The invention further relates to a screening machine having such a fastening system.

IPC Classes  ?

• B07B 1/46 - Constructional details of screens in generalCleaning or heating of screens
• B03B 5/18 - Moving-sieve jigs
• B03B 5/24 - Constructional details of jigs, e.g. pulse control devices

Goods & Services

Filter machines for chemical processing; vibratory screen separators and centrifugal machines; separating centrifugal machines; screening machines, namely, vibratory screen separators; sieves being machines; sieve trays being machine parts; sieve drum being machine parts; vibration screens being parts of vibratory screen separators; vibrating screens being parts of vibratory screen separators; round screens being parts of vibratory screen separators; curved screens being parts of vibratory screen separators; resonance vibrating screens being parts of vibratory screen separators; electromagnetic screens being parts of vibratory screen separators; size reduction machines being machines for separating target materials from mixtures of materials; size reduction machines for rock and hard materials, namely, industrial crushing machines, milling machines being hammer mills, hammer impact mills and eccentric vibrating mills, and jaw crushers and cone crushers for industrial purposes; rolling mills; vibrating rolling mills; tubular vibration mills being milling machines; drum mills being milling machines; hammer mills being milling machines; disc vibration mills being milling machines; taper mills being milling machines; double toggle jaw crushers being crushing machines for industrial use; roller crushers being crushing machines for industrial use; impact crushers being crushing machines for industrial use; gyratory crushers being crushing machines for industrial use; air suspension devices and systems for the aforementioned machines, namely, vibrating screen separators, centrifugal machines for industrial purposes, sieves being machine parts, milling machines, cutting machines, and crushing machines for industrial purposes; pneumatic delivery system, namely, pneumatic conveyors; flotation devices, namely, machines for separating target materials from mixtures of materials; classifying machines, namely, machines for sorting recycled material, gravel, rocks, stone, ore, and removing non-conforming materials; sand and gravel sorting machines; bulk material processing machines, namely, vibrating screen centrifuges, vibrating screen separators, centrifugal machines for industrial purposes, sieves being machines, milling machines, cutting machines, and crushing machines for industrial purposes; dewatering devices having pumps, namely, centrifugal pumps Laboratory machines and equipment, namely, liquid analyzers, tube centrifuges, and sample collectors for extracting material from industrial processing systems, namely, laboratory sample dividers and separators, laboratory filters, and laboratory cone mills in the nature of hand-operated laboratory tools for manipulating laboratory samples; centrifuges; separating centrifuges for laboratory purposes; mechanical dosing machines, namely, dispensers of preset portions of fluids, solid granules and powder for dosing purposes, all not for medical use; testing sieves in the nature of laboratory filters; software for performing mechanical engineering analysis Dewatering machines for use in treatment of liquids including water, industrial effluent and sewage; dehumidifiers; fluidized bed dryers, namely, industrial dryers for heating and dehumidifying; clarifying machines, namely, water treatment apparatus for clarification in the treatment of waste water and industrial water Engineering services and consulting relating thereto; development, programming and implementation of software; engineering services for the abovementioned machines; technological consultancy relating to computer system process optimization; quality control for others in the nature of technical inspection of machines within the scope of commissioning and trial operation

Abstract

The invention relates to a method for producing a screen netting (1), whereby openings (2) are made in a blank by means of water jet cutting, whereby the water jet cutting is carried out in several steps, whereby in a first step, a pre-cutting of the openings (2) of the screen netting (1) is carried out, and in at least one second step, a finish-cutting of the openings (2) of the screen netting (1) is carried out. The invention also relates to a screen netting (1) that is produced in such a way.

IPC Classes  ?

• B01D 39/10 - Filter screens essentially made of metal
• B07B 1/46 - Constructional details of screens in generalCleaning or heating of screens
• B24C 1/04 - Methods for use of abrasive blasting for producing particular effectsUse of auxiliary equipment in connection with such methods for treating only selected parts of a surface, e.g. for carving stone or glass
• B24C 5/02 - Blast guns, e.g. for generating high velocity abrasive fluid jets for cutting materials
• B26F 3/00 - Severing by means other than cuttingApparatus therefor
• B01D 39/16 - Other self-supporting filtering material of organic material, e.g. synthetic fibres
• B01D 39/20 - Other self-supporting filtering material of inorganic material, e.g. asbestos paper or metallic filtering material of non-woven wires

Abstract

The invention relates to a centrifuge basket for a screen centrifuge, in particular a screen helical-conveyor, a push-type or vibrating screen centrifuge, with an outer conical supporting basket (10, 20) and screen segments (12, 22, 32) enclosed in the supporting basket (10, 20), the supporting basket (10, 20) on its rear edge having an annular groove (17) into which the screen segments (12, 22, 32) are positively inserted, the screen segments (12, 22, 32) on their side facing the supporting basket (10, 20) having at least one clip (13, 23, 33) which is transversed by at least one screw (15, 25) and by means of which the screen segments (12, 22, 32) are detachably fixed on the front edge of the supporting basket (10, 20).

IPC Classes  ?

• B04B 3/00 - Centrifuges with rotary bowls in which solid particles or bodies become separated by centrifugal force and simultaneously sifting or filtering
• B04B 7/08 - Rotary bowls
• B04B 7/16 - Sieves or filters
• B04B 7/18 - Rotary bowls formed or coated with sieving or filtering elements
• B01D 33/74 - Filters with filtering elements which move during the filtering operation having feed or discharge devices for discharging filtrate
• B01D 35/30 - Filter housing constructions

Abstract

The invention relates to an endless screw of a centrifuge for discharging centrifuged material from a centrifuge, comprising a series of thin ceramic plates which are fixed next to one another at the outer edge of the screw, characterized in that at least two formed ceramic projections, particularly ceramic pins, protrude from the thin ceramic plates and are arranged in one or two lateral faces of the edge of the screw, i.e. in recesses which are profiled according to the protrusions or pins.

IPC Classes  ?

• B04B 1/20 - Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles discharging solid particles from the bowl by a conveying screw coaxial with the bowl axis and rotating relatively to the bowl

Abstract

The invention relates to an endless screw of a centrifuge for discharging centrifuged material from a centrifuge, comprising a series of thin ceramic plates which are fixed next to one another at the outer edge of the screw, characterized in that at least two formed ceramic projections, particularly ceramic pins, protrude from the thin ceramic plates and are arranged in one or two lateral faces of the edge of the screw, i.e. in recesses which are profiled according to the protrusions or pins.

IPC Classes  ?

• B04B 1/20 - Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles discharging solid particles from the bowl by a conveying screw coaxial with the bowl axis and rotating relatively to the bowl

Abstract

The invention relates to an outer support basket (1) of the centrifuge basket of a screen centrifuge, wherein screen segments can be secured by conical means in the support basket, the support basket has a plurality of concentric support rings (2) with a rectangular cross section with greater width than thickness and the broad sides of the rings lie parallel to one another and at right angles to the basket axis, wherein the support rings (2) are spaced apart from one another by axially parallel rods (4) which run through the support rings (2).

IPC Classes  ?

• B04B 7/18 - Rotary bowls formed or coated with sieving or filtering elements