EP0224058B1 - Verfahren und Vorrichtung zum Auftrennen eines Gemisches von harten und weichen bzw. zähen Stoffen - Google Patents

Verfahren und Vorrichtung zum Auftrennen eines Gemisches von harten und weichen bzw. zähen Stoffen Download PDF

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Publication number
EP0224058B1
EP0224058B1 EP19860114937 EP86114937A EP0224058B1 EP 0224058 B1 EP0224058 B1 EP 0224058B1 EP 19860114937 EP19860114937 EP 19860114937 EP 86114937 A EP86114937 A EP 86114937A EP 0224058 B1 EP0224058 B1 EP 0224058B1
Authority
EP
European Patent Office
Prior art keywords
conveyor
mixture
per
soft
nail
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP19860114937
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0224058A3 (en
EP0224058A2 (de
Inventor
Horst Beyer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0224058A2 publication Critical patent/EP0224058A2/de
Publication of EP0224058A3 publication Critical patent/EP0224058A3/de
Application granted granted Critical
Publication of EP0224058B1 publication Critical patent/EP0224058B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B13/00—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices
    • B07B13/003—Separation of articles by differences in their geometrical form or by difference in their physical properties, e.g. elasticity, compressibility, hardness

Definitions

  • the invention relates to a method for separating a mixture of hard and soft substances according to the preamble of claim 1, and a device suitable therefor according to the preamble of claim 7.
  • a device suitable therefor according to the preamble of claim 7. is known, for example, from GB-A-654847
  • the mixture of hard and soft substances is placed in a water-filled trough.
  • the mixture is transported by means of swords, which are arranged in an ascending order.
  • the soft fabrics are ground up and washed out with the water overflow.
  • this method has considerable disadvantages. On the one hand, it is associated with a high level of device wear and, on the other hand, this process requires considerable amounts of energy.
  • the invention has for its object to provide a method to separate a mixture of hard and soft substances in a simple manner as quickly and inexpensively.
  • the object is achieved by the method and the device according to the invention.
  • the mixture to be separated is expediently applied to the transport unit via a distributor unit in such a way that the full width of the nail band is used. It is advisable to apply the mixture onto the transport unit from a height of 10 - 50 cm.
  • the speed of the task depends crucially on the materials to be separated. The coarser the mixture to be separated, the higher the amount applied per unit of time. It has proven to be expedient to choose the feed rate in the range of 10-70 m3 / h, preferably 30-50 m3 / h.
  • the running speed of the nail band also depends in a similar way on the nature of the mixture to be separated.
  • a circulation speed of 0.1-1 m / sec has proven to be particularly advantageous. shown.
  • the entire transport unit is subjected to a cyclical vertical movement.
  • the cycle consists of a slow upward movement and a fast, abruptly stopped downward movement.
  • This cyclical movement can be generated, for example, by lifting the entire transport unit evenly and gently and dropping it abruptly into the starting position in free fall after reaching the highest point.
  • the vertical movement cycle of the transport unit and the rotational speed of the nail band must be coordinated with one another in such a way that the soft or viscous substances present in the mixture to be separated are subjected to two to ten cycles. If the mixture to be separated contains very soft foreign substances, two to three cycles are sufficient for these foreign substances to adhere sufficiently to the nails. On the other hand, if the foreign matter is tough, seven to ten cycles may be required.
  • the movement cycle can be generated in all possible ways familiar to the person skilled in the art.
  • a hydraulic, mechanical or even electro-mechanical drive has proven particularly useful.
  • the soft or tough components of the mixture become lodged in the nails of the nail band.
  • the hard natural substances remain on the nails.
  • the reversal point of the nail band is reached, the hard natural substances fall down and can be collected.
  • the soft and viscous parts of the mixture stuck in the nails are taken along beyond the reversing drum. Due to the centrifugal forces, that occur on the underside of the nail band when the falling transport unit is stopped abruptly, the soft and tough parts are torn out of the nails and can then be collected on the underside of the nail band.
  • the centrifugal forces to separate the soft and tough parts on the underside of the nail band can be supported by spraying the underside of the nail band with water. It is quite possible to scrape off the soft components on the underside of the nail tape, for example with a metal rake.
  • the length of the nail tape can be chosen arbitrarily and adapted to the separation problem to be solved. It has proven to be advantageous to choose the length of the nail tape so that the upper transport surface is 2-5 m. For many separation problems, it is particularly advantageous to connect 2 or more revolving nail bands in series.
  • the following nail tape is arranged in such a way that it absorbs the hard material portion of the mixture, which may still be contaminated by soft / tough components, of the previous tape. In this way, it is easily possible to completely separate hard and soft / tough components, even up to now as difficult to separate mixtures.
  • the nail tape can be made from all common materials. Rubber, plastic or linen has proven to be useful.
  • the tape is equipped with nails in the manner known to the person skilled in the art.
  • the diameter of the nails and the distance between the nails must in turn be matched to the mixture to be separated. If the grain size is small, the diameter of the nails and the distance between the nails should be chosen to be relatively small. With coarse-grained material, the distance and the thickness of the nails can be chosen correspondingly larger. It is advisable to use nails with a diameter of 0.5 - 2 mm.
  • the nails are usually made of steel. They can also be made of another material that has a corresponding strength.
  • the distance depending on the grain size of the material to be separated, expediently ranges from 1-6, preferably 2-5 mm.
  • the distance expediently ranges from 1-6, preferably 2-5 mm.
  • the task is to separate gravel with a grain size of 4 - 32 mm from contaminating loam or lettuce, it is advisable to choose nails with a diameter of 0 - 5 mm and to place them at a distance of 1 - 3, preferably 2 mm, attach to the nail tape.
  • coarse-grained gravel has to be cleaned, for example grain size 8-32 mm, thicker nails, for example 1 mm thick, can be attached to the nail tape at a greater distance, approximately 4-6 mm, preferably 5 mm.
  • Another object of the invention is a device for separating a mixture of hard and soft or tough materials, characterized in that the transport unit is vertically movable, and that the device is a drive and control unit for the movement cycle of the transport unit, which consists of a slow There is an upward movement and a rapid, abruptly stopped downward movement.
  • the transport unit is expediently connected to a frame in such a way that the vertical movement cycle is possible with the aid of the drive and control units.
  • All possible units known to the person skilled in the art for generating the corresponding movement processes can be used as drive and control units. Hydraulic, mechanical or electromechanical units can advantageously be used for this purpose.
  • a particularly expedient and advantageous variant of the device according to the invention contains a transport unit which contains 2 or more nail belts rotating around transport rollers. With such a device, a gradual separation of the mixture of hard and soft substances is possible. This provides a quick and better separation result with simple means.
  • the movement of the nail tape or tapes is accomplished in that at least one of the transport rollers of each nail tape is driven with the aid of a conventional drive unit.
  • Adjustable hydraulic drives, adjustable electric geared motors, etc. are suitable for this.
  • FIGS Figures 1 and 2 show schematically.
  • Figure 1 shows schematically the view of the device according to the invention.
  • Figure 2 shows the side view of the device according to the invention.
  • the device according to the invention shown in the figures consists of the transport unit (1), which contains two nail belts (2) and (3) which are adjustable in their running speed and which rotate around transport rollers (4).
  • the transfer point of the hard natural substances is designated, with (b) the transfer point of soft or tough substances.

Landscapes

  • Combined Means For Separation Of Solids (AREA)
  • Processing Of Solid Wastes (AREA)
  • Treatment Of Sludge (AREA)
  • Belt Conveyors (AREA)
  • Treatment Of Fiber Materials (AREA)
EP19860114937 1985-11-27 1986-10-28 Verfahren und Vorrichtung zum Auftrennen eines Gemisches von harten und weichen bzw. zähen Stoffen Expired - Lifetime EP0224058B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3541817 1985-11-27
DE19853541817 DE3541817A1 (de) 1985-11-27 1985-11-27 Einrichtung zur ausscheidung von fremdstoffen

Publications (3)

Publication Number Publication Date
EP0224058A2 EP0224058A2 (de) 1987-06-03
EP0224058A3 EP0224058A3 (en) 1989-05-31
EP0224058B1 true EP0224058B1 (de) 1991-09-18

Family

ID=6286906

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19860114937 Expired - Lifetime EP0224058B1 (de) 1985-11-27 1986-10-28 Verfahren und Vorrichtung zum Auftrennen eines Gemisches von harten und weichen bzw. zähen Stoffen

Country Status (2)

Country Link
EP (1) EP0224058B1 (enrdf_load_stackoverflow)
DE (2) DE3541817A1 (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3810544A1 (de) * 1988-03-29 1989-10-19 Horst Beyer Verfahren und vorrichtung zum auftrennen eines gemisches von harten, weichen bzw. zaehen sowie holzartigen stoffen
DE4401381C2 (de) * 1994-01-19 1996-05-15 Haver & Boecker Trennvorrichtung für eine undefinierte Außenkontur aufweisende und nach Korngrößen klassierte Hartgesteinskörper

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB654847A (en) * 1943-04-16 1951-07-04 Michael Jan De Goeje Improvements in or relating to the sorting or separation of peas, seeds, grains and similar granular products
GB1453183A (en) * 1972-11-09 1976-10-20 Davies A W B Separating devices
DE3406326A1 (de) * 1984-02-22 1985-09-26 Beyer, Horst, 6806 Viernheim Einrichtung zur ausscheidung von fremdstoffen

Also Published As

Publication number Publication date
DE3681560D1 (de) 1991-10-24
DE3541817C2 (enrdf_load_stackoverflow) 1987-10-22
DE3541817A1 (de) 1987-06-04
EP0224058A3 (en) 1989-05-31
EP0224058A2 (de) 1987-06-03

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