WO1994026638A1 - Conveyor installation in the form of a moving floor - Google Patents
Conveyor installation in the form of a moving floor Download PDFInfo
- Publication number
- WO1994026638A1 WO1994026638A1 PCT/NL1994/000106 NL9400106W WO9426638A1 WO 1994026638 A1 WO1994026638 A1 WO 1994026638A1 NL 9400106 W NL9400106 W NL 9400106W WO 9426638 A1 WO9426638 A1 WO 9426638A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- planks
- knives
- guide elements
- moving
- conveyor
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G25/00—Conveyors comprising a cyclically-moving, e.g. reciprocating, carrier or impeller which is disengaged from the load during the return part of its movement
- B65G25/04—Conveyors comprising a cyclically-moving, e.g. reciprocating, carrier or impeller which is disengaged from the load during the return part of its movement the carrier or impeller having identical forward and return paths of movement, e.g. reciprocating conveyors
- B65G25/06—Conveyors comprising a cyclically-moving, e.g. reciprocating, carrier or impeller which is disengaged from the load during the return part of its movement the carrier or impeller having identical forward and return paths of movement, e.g. reciprocating conveyors having carriers, e.g. belts
- B65G25/065—Reciprocating floor conveyors
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
- C05F17/90—Apparatus therefor
- C05F17/964—Constructional parts, e.g. floors, covers or doors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/141—Feedstock
- Y02P20/145—Feedstock the feedstock being materials of biological origin
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse
Definitions
- the invention relates to a conveyor installation in the form of a moving floor, intended in particular for composting manure or waste, comprising: a conveyor surface in the form of a number of planks which are arranged alongside one another and in the longitudinal direction are movably supported on guide elements, means for moving a relatively large number of planks forward as a unit and for moving said planks back one by one or successively a relatively small number at a time, and air passages in the conveyor surface.
- a moving floor of this type has been disclosed for composting waste.
- the material to be composted is fed to one end of the floor by means of feed bins.
- the composting process takes a few days and when this process is complete the compost is fed by means of the moving floor into discharge bins and removed. It has been found that the openings through which air is blown into the bed become blocked, as a result of which aeration becomes inadequate or even impossible.
- the aim is to overcome this drawback and to this end the conveyor installation mentioned in the preamble is characterised by knives or scrapers which, as the planks are moved, are able to remove material which has infiltrated the air passages.
- planks rest, at a mutual spacing, with their longitudinal edges on the guide elements, that recesses are made in the upper surface of the guide elements, that cover wings are made on at least one of the longitudinal edges of the planks, which cover wings can close off or expose the recesses, depending on the position of the planks, and that a knife or scraper which protrudes into a recess in a guide element is fitted to the underside of said wings.
- Figure 1 shows a top view of part of a first embodiment of a moving floor according to the invention.
- Figure 2 shows a cross-section along the line II-II in Figure 1.
- Figure 3 shows a top view of part of a second embodiment of a moving floor according to the invention.
- Both embodiments comprise a large number of long planks 1, which are positioned alongside one another with some mutual spacing and rest with their longitudinal edges on guide elements 2 in such a way that they are able to slide or glide over said guide elements.
- the planks can be moved forward as a unit of three or more and moved back to the original position one by one (or a small number at a time) .
- a body which is operated by a hydraulic cylinder is assigned to each plank, which body is or can be connected to the plank. If use is made of transverse connecting elements between the planks, a large number of planks can be moved as a unit and returned one by one using a single hydraulic cylinder or a small number of hydraulic cylinders.
- a moving floor can form part of a composting installation for composting waste, manure or mushrooms.
- the material to be composted is deposited on the planks at one end of the planks and moved in the direction of the other end of the planks by means of the abovementioned movement mechanism. In this way a 1 to 3 metre thick layer is laid on the floor, which layer is left to stand for a few days, during which period it is aerated. When the composting process is complete the compost is transferred to discharge bins by means of the moving floor.
- Aeration openings 3 are made in the moving floor for aeration.
- the floor will form part of a tunnel, air being blown under some pressure into the space below the moving floor, which air flows via the aeration openings into the layer of material to be composted.
- the aeration openings 3 are recesses in the uppermost part of the guide elements 2.
- Said elements are made of plastic and rest on I-beams 4, which are fixed to the solid floor some distance apart.
- each plank 1 is provided on one longitudinal side with a wing 6 which, depending on the position of the plank, can cover an aeration opening 3 (left side of Figure 1) or completely or partially expose said opening (right side of Figure 1).
- Triangular knives or scrapers 7 are fixed to the lower surface of the planks and, during the backwards and forwards movements of the planks 1, said knives or scrapers move in the aeration openings 3 and remove the material which has infiltrated said openings. Blockage of the openings 3 is prevented as a result.
- the extent of the surface area of the openings 3 to be exposed for aeration can be adjusted with the aid of the wings 6 and the positioning of the planks. The aeration can thus be controlled.
- the aeration surface area of the openings 3 on the longitudinal sides of the moving floor can be made smaller than that in the middle, as a result of which short-circuit currents along the side of the material to be composted are prevented.
- the material which is removed from the aeration openings by means of scrapers or knives 7 falls onto a sloping solid floor of the installation and can be flushed away.
- each plank is provided on two longitudinal edges with knives 8 and 9 respectively.
- the knives 8 on the left longitudinal edge of the planks lie with their lower surface at the same height as the lower surface of the planks 1.
- the knives 9 on the right longitudinal edge of the planks lie with their lower surface at the base of the recesses 3 in the guide elements and with their upper surface at the same height as the lower surface of the planks.
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU68579/94A AU6857994A (en) | 1993-05-10 | 1994-05-10 | Conveyor installation in the form of a moving floor |
DE19944493155 DE4493155T1 (en) | 1993-05-10 | 1994-05-10 | Conveyor system in the form of a movable floor |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL9300800A NL9300800A (en) | 1993-05-10 | 1993-05-10 | Transport device in the form of a moving floor. |
NL9300800 | 1993-05-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1994026638A1 true WO1994026638A1 (en) | 1994-11-24 |
Family
ID=19862380
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/NL1994/000106 WO1994026638A1 (en) | 1993-05-10 | 1994-05-10 | Conveyor installation in the form of a moving floor |
Country Status (4)
Country | Link |
---|---|
AU (1) | AU6857994A (en) |
DE (1) | DE4493155T1 (en) |
NL (1) | NL9300800A (en) |
WO (1) | WO1994026638A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998047834A1 (en) * | 1997-04-17 | 1998-10-29 | Horstmann Gmbh & Co Kg | Withdrawal device |
FR2820421A1 (en) * | 2001-02-05 | 2002-08-09 | Recyval Sa | Automatic container for composting organic materials has inner base with mechanical drive to move material along its length |
WO2006040610A1 (en) * | 2004-10-13 | 2006-04-20 | F.L. Smidth A/S | Cooler for cooling hot particulate material |
EP1704934A2 (en) * | 2005-03-22 | 2006-09-27 | LINDE-KCA-Dresden GmbH | Clearing device for channels with difficult access |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4727978A (en) * | 1986-04-11 | 1988-03-01 | Hallstrom Jr Olof A | Reciprocating conveyor for particulate material |
US4798802A (en) * | 1987-07-28 | 1989-01-17 | Ryan Richard M | Method for accelerating composting of organic matter and composting reactor therefor |
EP0334460A2 (en) * | 1988-03-23 | 1989-09-27 | J.B. Rutte B.V. | Conveying floor with a plurality of parallel moving beams for a compost plant |
-
1993
- 1993-05-10 NL NL9300800A patent/NL9300800A/en not_active Application Discontinuation
-
1994
- 1994-05-10 AU AU68579/94A patent/AU6857994A/en not_active Abandoned
- 1994-05-10 WO PCT/NL1994/000106 patent/WO1994026638A1/en active Application Filing
- 1994-05-10 DE DE19944493155 patent/DE4493155T1/en not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4727978A (en) * | 1986-04-11 | 1988-03-01 | Hallstrom Jr Olof A | Reciprocating conveyor for particulate material |
US4798802A (en) * | 1987-07-28 | 1989-01-17 | Ryan Richard M | Method for accelerating composting of organic matter and composting reactor therefor |
EP0334460A2 (en) * | 1988-03-23 | 1989-09-27 | J.B. Rutte B.V. | Conveying floor with a plurality of parallel moving beams for a compost plant |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998047834A1 (en) * | 1997-04-17 | 1998-10-29 | Horstmann Gmbh & Co Kg | Withdrawal device |
US6261049B1 (en) | 1997-04-17 | 2001-07-17 | Horstman Gmbh & Co. Kg | Withdrawal device |
FR2820421A1 (en) * | 2001-02-05 | 2002-08-09 | Recyval Sa | Automatic container for composting organic materials has inner base with mechanical drive to move material along its length |
WO2006040610A1 (en) * | 2004-10-13 | 2006-04-20 | F.L. Smidth A/S | Cooler for cooling hot particulate material |
EP1704934A2 (en) * | 2005-03-22 | 2006-09-27 | LINDE-KCA-Dresden GmbH | Clearing device for channels with difficult access |
EP1704934A3 (en) * | 2005-03-22 | 2008-10-08 | STRABAG Umweltanlagen GmbH | Clearing device for channels with difficult access |
Also Published As
Publication number | Publication date |
---|---|
DE4493155T1 (en) | 1996-08-22 |
NL9300800A (en) | 1994-12-01 |
AU6857994A (en) | 1994-12-12 |
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