WO2017207704A2 - Système naval de broyage en circuit fermé - Google Patents

Système naval de broyage en circuit fermé Download PDF

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Publication number
WO2017207704A2
WO2017207704A2 PCT/EP2017/063337 EP2017063337W WO2017207704A2 WO 2017207704 A2 WO2017207704 A2 WO 2017207704A2 EP 2017063337 W EP2017063337 W EP 2017063337W WO 2017207704 A2 WO2017207704 A2 WO 2017207704A2
Authority
WO
WIPO (PCT)
Prior art keywords
ship
schiffskreislaufmahlanlage
pressure roller
classifier
roller press
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.)
Ceased
Application number
PCT/EP2017/063337
Other languages
German (de)
English (en)
Other versions
WO2017207704A3 (fr
Inventor
Lutz HORN
Stefan Seemann
Carsten Eckert
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.)
KHD Humboldt Wedag GmbH
Original Assignee
KHD Humboldt Wedag GmbH
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 KHD Humboldt Wedag GmbH filed Critical KHD Humboldt Wedag GmbH
Publication of WO2017207704A2 publication Critical patent/WO2017207704A2/fr
Publication of WO2017207704A3 publication Critical patent/WO2017207704A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C4/00—Crushing or disintegrating by roller mills
    • B02C4/02—Crushing or disintegrating by roller mills with two or more rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C21/00—Disintegrating plant with or without drying of the material
    • B02C21/02—Transportable disintegrating plant
    • B02C21/026—Transportable disintegrating plant self-propelled
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
    • B02C23/10—Separating or sorting of material, associated with crushing or disintegrating with separator arranged in discharge path of crushing or disintegrating zone
    • B02C23/12—Separating or sorting of material, associated with crushing or disintegrating with separator arranged in discharge path of crushing or disintegrating zone with return of oversize material to crushing or disintegrating zone
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
    • B02C23/14—Separating or sorting of material, associated with crushing or disintegrating with more than one separator
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F7/00—Equipment for conveying or separating excavated material
    • E02F7/06—Delivery chutes or screening plants or mixing plants mounted on dredgers or excavators
    • E02F7/065—Delivery chutes or screening plants or mixing plants mounted on dredgers or excavators mounted on a floating dredger

Definitions

  • the invention relates to a Schiffsnikankeaumahlstrom, comprising at least one high-pressure roll press, at least one first classifier and at least one second indulgent.
  • the last arranged Kreislaufmahlstrom is used in mines or in pits, which are located near navigable water and where the construction of a Kreislaufmahlstrom for various reasons is not possible or not economical.
  • This Schiffnikreismahlstrom thus represents a temporary, mobile plant, which is transported on demand from one mine / pit to the next and crushed locally, when the ship is moored, ground material. Due to their construction, the marine circuit grinding plant disclosed in DE102013008907A1 is suitable for use in inland waters, where it is necessary for the superstructures on the ship also to fit under bridges present in the ship's passage in order to pass them on the water can.
  • the object of the invention is therefore to provide a Schiffsreislaufmahlstrom available, which fits the safety requirements of a seagoing ship
  • a Schiffsniklaufmahlstrom which comprises the following units: at least one high-pressure roller press, at least one first classifier, at least one second Nachsichter. These aggregates are interconnected as follows: Ground material flows from the high-pressure roller press into the first, at least one classifier. After that flows in the first, at least one classifier sized medium in the second, at least one indulgence. Finally, the coarse material from the first, at least one classifier flows back through a bucket elevator into the at least one high-pressure roller press. According to the invention, it is now provided that the first, at least one classifier is arranged below the at least one high-pressure roller press.
  • the second, at least one, obturator is disposed adjacent to or at a height above the at least one high pressure roll press.
  • the entire Kreislaufmahlstrom has space in a section of a ship and there can be arranged.
  • the here presented Kreislaufmahlstrom limited to a rather small footprint and builds up. This height is available on seagoing vessels.
  • seagoing ships do not have any surface area available, because sea ships are always divided into sections for sink protection.
  • these Kreislaufmahlstrom arranged in the section of a seagoing vessel either firmly moored in a port does its service, or it is intended that the seagoing ship larger quantities of crushed cement clinker, ores or valuable excavation from a pit of transported to one place to another and while the ship is in motion, it crushes the on-board bulk material.
  • the operation of such a system at sea is not trivial. In severe sea conditions, the operation of the system may be impossible under certain circumstances, or the functioning operation of the system may run counter to the safety interests of the system. In order to avoid such situations as far as possible, some measures are enumerated below that make a maritime operation possible and only make operation impossible in very heavy seas.
  • the Kreislaufmahlstrom not only on-board to grind the material to be crushed, but also mix ready, so that the finished product can be deleted at the port of destination. It is therefore provided in an embodiment of the invention that fines from the second, at least one Vietnamesesichter via a conveyor belt above the second, at least one Vietnamesesichters flows into another, adjacent section of the ship and there in a mixing plant with additives, such as. Plaster, mixed. Due to the height of the conveyor belt, the fine material is lifted over a section wall of the ship, so that during operation of Kreislaufmahlstrom no section bulkheads are open, which can lead in an average case that not leaking beaten sections fill with water and thus the sea ship can sink.
  • compressors for generating classifying air are arranged below the first, at least one classifier, wherein the compressor sucked by the classifying air from the section of the ship comes, so that from the Kreislaufmahlstrom escaping dust through the compressor with the sucked air back into the Schiffnikreismahlstrom.
  • suction air sucked through the compressor comes from a chimney, which sucks air from a height above sea level approximately at the level of the mouth of the ship's chimney.
  • the first alternative has the advantage that existing air in the section is already pre-dried because the sea air on the way to the compressor has already lost its fine salt water droplets.
  • the Kreislaufmahlstrom thus acts like a seawater trap. Furthermore, dust, which inevitably occurs even in a closed system and passes into the atmospheric air, is sucked back through the compressor and returned to the Kreislaufmahlstrom.
  • the second alternative makes use of the fact that the spray is already poorly depleted of seawater droplets a few meters above the deck line. The spray is usually found at the height of the deck height.
  • the usually very heavy high-pressure roller press is arranged approximately above the keel of the seagoing ship.
  • the heavy grinding rollers act like rotating ship stabilizers.
  • the torque of the rotating grinding rolls which can weigh up to 100 l per piece, even at low sea state with a rolling motion of the sea ship to the Coriolis force strong Coriolis forces must be absorbed by the plant frame, which is the rolling motion of the ship oppose. Since in the high-pressure roll press two approximately identical grinding rolls with opposite directions of rotation rotate equally fast, the Coriolis forces do not affect the ship's stabilization, because the effect of the Coriolis force of one roll compensates for the effect of the Coriolis force of the second grinding roll.
  • the high-pressure roller presses represent the highest weight with the highest density within the Kreislaufmahlstrom.
  • the high-pressure roller press In order to derive the high-pressure roller press itself and their outgoing forces that must be derived from the ship's hull, stable, it has proven to be advantageous if the high-pressure roller press about in Height of the upper deck is located, with the deck level can absorb the transverse forces that occur especially in the sea operation.
  • the Kreislaufmahlstrom arranged in a section of the ship is advantageously constructed so that it is modular and monolithic, that is constructed as a coherent system, so that the system can be sunk into an existing section of an existing ship.
  • the Kreislaufmahlstrom is built near a Seekais and lowered by means of a heavy duty crane in the section of the ship. It is important that the section of the seagoing vessel is so strengthened or arranged inside the seagoing ship that it can be loaded with the weight of the Kreislaufmahlstrom even in the unloaded condition of the seagoing vessel, without that the ship by the buoyancy of the emptied neighboring sections in the harbor breaks apart, as it occasionally occurs in ship unloading errors in seaports.
  • the entire Kreislaufmahlstrom is constructed in a three-dimensional stator, which can be lowered via a heavy duty crane in the section of the ship without protruding from the stator laterally aggregates, lowering the Kreislaufmahlstrom in the section disturb the ship.
  • the center of gravity of the built in the stator plant Kreislaufmahlstrom is installed in the section of the ship above the keel of the ship and not laterally of the center line of the ship above the keel.
  • Fig. 1 three views of a Kreislaufmahlstrom in a section of a
  • FIG 1 three views of a Schiffswaneaumahlan- position 1 according to the invention are shown.
  • the upper left figure is a view of the Schiffnikreismahlstrom 1 shown in the installed state of starboard.
  • the upper right-hand drawing is a view of the rear of the built-in cruise ship grinding plant 1 is shown and in the single lower view is a view from above, as a site plan shown.
  • Fresh material 2 is fed via a conveyor belt 3 by unloading cranes 4, not shown in this drawing on a high-pressure roller press 5.
  • the fresh material 2 is poured into a task bunker 6, which is arranged above the high-pressure roller press 5 and the fresh material 2 in a predetermined dosage per unit time down to the high-pressure roller press 5 pours.
  • the fresh product 2 After the fresh product 2 has passed the high-pressure roller press 5, it falls into a receiving hopper 7, which is arranged below the nip of the high-pressure roller press 5, and passes the millbase in a static, substantially V-shaped classifier 8, the front, in the figure is blown from the bottom right through a below the V-shaped classifier 8 arranged on the ship's bottom B compressor 9.
  • the material to be ground falls over stair-like louvered sheets, through which the classifying air of the compressor 9 flows. Midgut is thereby pneumatically carried in a channel 10, which leads to a Nachsichter 1 1.
  • the coarse material not entrained with the air flow of the compressor 9 falls into a line 12 located at the foot of the V-shaped classifier 8, which guides the coarse material into a bucket elevator 13.
  • the coarse material is then transported onto the conveyor belt 3, where it is returned to the grinding machine. circulated.
  • the median material selected from the indulgent 1 1 is also conveyed via a buffer bunker 14 onto a conveyor belt 14 'which unites the middle product with the coarse material before it flows into the bucket elevator 13.
  • the selected from the indeliator 1 1 fines is then separated via a larger filter device 18 from the classifying air and fed in this embodiment via a lying in height conveyor belt 19 a second section 15 of a ship in the mixing plants 16 for mixing with additives, such as Plaster stand.
  • the classifying air is drawn from a chimney 17 which draws air well above deck height so as not to draw sea air to the deck level where spray could get into the classifying air. By the chimney 17 prevents salt contained in the spray could get into the fines.
  • a chimney 17 which draws air well above deck height so as not to draw sea air to the deck level where spray could get into the classifying air.
  • the chimney 17 prevents salt contained in the spray could get into the fines.
  • an alternative embodiment of the invention can be provided to pull the classifying air from the filter device 18 in order to draw as little sea air into the grinding circuit.
  • Yet another alternative may provide that the classifying air is drawn at the level of the ship's bottom B, so that stray dust from the marine circuit grinding plant 1 is inevitably pulled down into the section 15 of the seagoing vessel and does not contaminate the sea-going ship on the upper deck or even the ship's view impaired.
  • FIG. 2 shows midships and the bow of a seagoing ship with different sections S1, S2, S3, S4 and S5.
  • the stern of the ship and the bridge of the ship are hidden in this drawing.
  • section S5 the Schiffsniklaufmahlstrom is arranged in a stator 20, which is fed by the unloading cranes 4 and lightened.
  • an embodiment of the invention is shown in which the fines are not mixed a plant for mixing with additives.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Crushing And Grinding (AREA)
  • Ship Loading And Unloading (AREA)
  • Disintegrating Or Milling (AREA)

Abstract

L'invention concerne un système naval de broyage en circuit fermé (1) présentant au moins une presse à rouleaux haute pression (5), au moins un premier tamis (8) et au moins un deuxième tamis secondaire (11), le produit de broyage s'écoulant de la presse à rouleaux haute pression (5) dans le ou les premiers tamis (8) et le produit intermédiaire tamisé dans le ou les premiers tamis (8) s'écoulant dans le ou les deuxièmes tamis secondaires (11), et le produit grossier provenant du ou des premiers tamis (8) étant retourné dans la ou les pompes à rouleaux haute pression (5) par un élévateur à godets (13). Selon l'invention, le ou les premiers tamis (8) sont agencés sous la ou les pompes à rouleaux (5), et le ou les deuxièmes tamis secondaires (11) sont agencés à côté ou à une certaine hauteur au-dessus de la ou des pompes à rouleaux haute pression (5), de sorte que l'ensemble du système de broyage en circuit fermé dispose de place dans une section (15) d'un navire de haute mer dans laquelle il est agencé.
PCT/EP2017/063337 2016-06-02 2017-06-01 Système naval de broyage en circuit fermé Ceased WO2017207704A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016006610.5A DE102016006610A1 (de) 2016-06-02 2016-06-02 Schiffskreislaufmahlanlage
DE102016006610.5 2016-06-02

Publications (2)

Publication Number Publication Date
WO2017207704A2 true WO2017207704A2 (fr) 2017-12-07
WO2017207704A3 WO2017207704A3 (fr) 2018-01-25

Family

ID=59258178

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2017/063337 Ceased WO2017207704A2 (fr) 2016-06-02 2017-06-01 Système naval de broyage en circuit fermé

Country Status (2)

Country Link
DE (1) DE102016006610A1 (fr)
WO (1) WO2017207704A2 (fr)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013008907A1 (de) 2013-05-25 2014-11-27 Khd Humboldt Wedag Gmbh Kreislaufmahlanlage

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US42756A (en) * 1864-05-17 Improvement in floating mills
US858180A (en) * 1907-03-05 1907-06-25 Link Belt Co Loading-barge for vessels.
US1940488A (en) * 1930-12-17 1933-12-19 Edward C Gritzbaugh Sand dredging apparatus
DE2025527A1 (fr) * 1970-05-26 1971-11-04
DE4320025A1 (de) * 1993-06-17 1994-12-22 Krupp Polysius Ag Mahlanlage und Verfahren zum Mahlen und Sichten von sprödem Mahlgut
SG71081A1 (en) * 1998-01-26 2000-03-21 Ssangyong Cement Singapore Ltd Roller press grinding plant
DE202010009150U1 (de) * 2010-06-16 2010-08-26 Khd Humboldt Wedag Gmbh Kreislaufmahlanlage mit integriertem Puffer
DE102014108334A1 (de) * 2014-06-13 2015-12-17 Thyssenkrupp Ag Mahlanlage und Verfahren zur Zerkleinerung von Mahlgut

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013008907A1 (de) 2013-05-25 2014-11-27 Khd Humboldt Wedag Gmbh Kreislaufmahlanlage

Also Published As

Publication number Publication date
DE102016006610A1 (de) 2017-12-07
WO2017207704A3 (fr) 2018-01-25

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