GB2111008A - Kiln feed conveyor - Google Patents

Kiln feed conveyor Download PDF

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Publication number
GB2111008A
GB2111008A GB08229013A GB8229013A GB2111008A GB 2111008 A GB2111008 A GB 2111008A GB 08229013 A GB08229013 A GB 08229013A GB 8229013 A GB8229013 A GB 8229013A GB 2111008 A GB2111008 A GB 2111008A
Authority
GB
United Kingdom
Prior art keywords
tiles
conveyor
kiln
roller
ceramic
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.)
Withdrawn
Application number
GB08229013A
Inventor
Ernst Walter Eberhard Wolf
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.)
HEIMSOTH KERAMISCHE OEFEN
Original Assignee
HEIMSOTH KERAMISCHE OEFEN
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 HEIMSOTH KERAMISCHE OEFEN filed Critical HEIMSOTH KERAMISCHE OEFEN
Publication of GB2111008A publication Critical patent/GB2111008A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B33/00—Clay-wares
    • C04B33/32—Burning methods
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
    • B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
    • B28B11/243—Setting, e.g. drying, dehydrating or firing ceramic articles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
    • F27B9/20—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace
    • F27B9/24—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace being carried by a conveyor
    • F27B9/2407—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace being carried by a conveyor the conveyor being constituted by rollers (roller hearth furnace)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/0021—Charging; Discharging; Manipulation of charge of ceramic ware
    • F27D3/0022—Disposition of the charge
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27M—INDEXING SCHEME RELATING TO ASPECTS OF THE CHARGES OR FURNACES, KILNS, OVENS OR RETORTS
    • F27M2001/00—Composition, conformation or state of the charge
    • F27M2001/15—Composition, conformation or state of the charge characterised by the form of the articles
    • F27M2001/1504—Ceramic articles
    • F27M2001/1508—Articles of relatively small dimensions
    • F27M2001/1517—Tiles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27M—INDEXING SCHEME RELATING TO ASPECTS OF THE CHARGES OR FURNACES, KILNS, OVENS OR RETORTS
    • F27M2002/00—Disposition of the charge
    • F27M2002/01—Disposition of the charge in one layer

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Dispersion Chemistry (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Tunnel Furnaces (AREA)
  • Attitude Control For Articles On Conveyors (AREA)
  • Rollers For Roller Conveyors For Transfer (AREA)

Abstract

An apparatus for the manufacture of tiles of ceramic material or the like in which after moulding tiles are conveyed by means of a roller conveyor 12 through a firing kiln 10. The roller conveyor is made up of a plurality of elongate rollers 18 spaced apart at short distances and passing through the firing kiln 10. A unit 13 placed ahead of the firing kiln aligns the tiles so that their greatest dimension lies along the direction of travel of the conveyor so that smaller tiles can now be processed in a given firing kiln. <IMAGE>

Description

SPECIFICATION Method and apparatus for the manufacture of ceramic tiles The invention relates to a method for the manufacture of tiles from ceramic material orthe like.
After moulding from ceramic or like material the tiles are conveyed by means of a roller conveyor through a firing kiln. An apparatus for carrying out the method includes a charging unit, a firing kiln and a roller conveyor consisting of a plurality of elongate rollers disposed at short spacings from one another and passing through the firing kiln.
In the manufacture of ceramic tiles and particularly for carrying the tiles during firing it is normal to employ roller conveyors made up of relatively slim cylinder which are supported by bearings at both ends and are driven from one sde The rollers of such conveyors should have as large a diameter as possible to provide a relatively large support area for the tiles. Relatively large roller diameters, on the other hand will necessitate relatively large inter-roller spacings thereby restricting the minimum dimension of tiles which can be carried.
In any changeover to relatively small roller diameters and correspondingly smaller inter-roller spacings it has to be borne in mind that the rollers must be capable of withstanding relatively high temperatures in the firing kiln and this requirement imposes a lower limit on the size of the rollers.
In known systems a charging unit is employed at the inlet side of the firing kiln to align individual tiles in relation to the roller conveyor and to one another so that for instance one peripheral edge of a tile is aligned at right angles to the conveying direction of the roller conveyor. This mode of alignment is employed without exception by all known units because it permits close packing of tiles on a roller conveyor and makes it possible to remove the fired tiles relatively simply at the outlet end of the kiln.
An object of the present invention is to provide a method and apparatus which make it possible to carry tiles which are significantly smaller than the hitherto accepted minimum size on a given roller conveyor with fixed roller spacing and fixed roller diameter.
According to the present invention there is provided a method of manufacture of tiles from ceramic or like material in which after moulding the tiles are carried through a firing kiln on a conveyor and prior to being fired the tiles are aligned so that their greatest dimension lies in the direction of travel.
Apparatus for the manufacture of tiles from ceramic or like material comprises a firing kiln, extending therethrough a conveyor and, alignment means operative to align the tiles so that their greatest dimension lies in the direction of travel.
In the case of square tiles this means that the diagonals of the tiles are aligned in the conveying direction, i.e. they travel through the kiln with a corner leading. This disposition makes it possible to carry and fire significantly smaller tiles in a given roller kiln.
The invention will now be described by way of example only with reference to the single Figure of the accompanying drawing, which shows diagrammatically the inlet side of a firing kiln with its associated roller conveyor and tile alignment unit.
In the drawing the diagrammatically shown firing kiln is designated by 10 and its inlet aperture by 11.
The drawing shows a view of the inlet side of the kiln 10 with a roller conveyor 12 which is made up of a plurality of identical rollers 18 entering the kiln inlet 11, the direction of motion of the conveyor is indicated by arrow 16. The roller conveyor 12 passes through the firing kiln 10 but the outlet side is not shown in the drawing; the drive and support systems for the rollers 18 are also not shown.
A charging unit, the position of which is indicated by arrow 17 but is not shown, puts moulded tiles 14 onto the roller conveyor 12 such that one of their peripheral edges is disposed perpendicular to the conveying direction indicated by arrow 16. The conveyor 12 is driven to move the tiles 14 forwards where they enter alignment unit 13 which acts upon the tiles 14 lying on the rollers turning them, in the described embodiment through an angle of 45 to the direction of arrow 16. In passing through alignment unit 13 the tiles 15 have been turned so that their most acute angled corner points forward, i.e.
leads in the direction of travel as shown at 15, so that one of their diagonals is aligned parallel to the conveying direction 16. The diagram shows at 14 and 15 only three tiles lying side by side, for the sake of clarity of illustration. In an industrial form of embodiment of the invention the tiles 14 and 15 would of course be arranged so as to be closely adjacent to one another. This would however not be done so that the leading edges are aligned perpendicular to the conveying direction but so that the most acute angled corners of the various tiles are leading with the various tiles 15 forming rows in which the various edges of adjoining tiles are aligned parallel to one another.
The alignment unit 13 is shown in the drawing to be located a short distance in front of the inlet aperture 11 of the kiln 10, the spacing illustrated is merely for the purpose of explanation, the unit 13 can be positioned at any convenient point along the conveyor 12.
1. A method of manufacture of tiles from ceramic or like material in which after moulding the tiles are carried through a firing kiln on a conveyor and prior to being fired the tiles are aligned so that their greatest dimension lies in the direction of travel.
2. A method as claimed in Claim 1 wherein the tiles are aligned prior to being introduced into the firing kiln.
3. Apparatus for the manufacture of tiles from ceramic or like material comprises a firing kiln, extending therethrough a conveyor and, alignment means operative to align the tiles so that their greatest dimension lies in the direction of travel.
4. Apparatus as claimed in Claim 3 wherein the alignment means is positioned in front of the kiln.
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (8)

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION Method and apparatus for the manufacture of ceramic tiles The invention relates to a method for the manufacture of tiles from ceramic material orthe like. After moulding from ceramic or like material the tiles are conveyed by means of a roller conveyor through a firing kiln. An apparatus for carrying out the method includes a charging unit, a firing kiln and a roller conveyor consisting of a plurality of elongate rollers disposed at short spacings from one another and passing through the firing kiln. In the manufacture of ceramic tiles and particularly for carrying the tiles during firing it is normal to employ roller conveyors made up of relatively slim cylinder which are supported by bearings at both ends and are driven from one sde The rollers of such conveyors should have as large a diameter as possible to provide a relatively large support area for the tiles. Relatively large roller diameters, on the other hand will necessitate relatively large inter-roller spacings thereby restricting the minimum dimension of tiles which can be carried. In any changeover to relatively small roller diameters and correspondingly smaller inter-roller spacings it has to be borne in mind that the rollers must be capable of withstanding relatively high temperatures in the firing kiln and this requirement imposes a lower limit on the size of the rollers. In known systems a charging unit is employed at the inlet side of the firing kiln to align individual tiles in relation to the roller conveyor and to one another so that for instance one peripheral edge of a tile is aligned at right angles to the conveying direction of the roller conveyor. This mode of alignment is employed without exception by all known units because it permits close packing of tiles on a roller conveyor and makes it possible to remove the fired tiles relatively simply at the outlet end of the kiln. An object of the present invention is to provide a method and apparatus which make it possible to carry tiles which are significantly smaller than the hitherto accepted minimum size on a given roller conveyor with fixed roller spacing and fixed roller diameter. According to the present invention there is provided a method of manufacture of tiles from ceramic or like material in which after moulding the tiles are carried through a firing kiln on a conveyor and prior to being fired the tiles are aligned so that their greatest dimension lies in the direction of travel. Apparatus for the manufacture of tiles from ceramic or like material comprises a firing kiln, extending therethrough a conveyor and, alignment means operative to align the tiles so that their greatest dimension lies in the direction of travel. In the case of square tiles this means that the diagonals of the tiles are aligned in the conveying direction, i.e. they travel through the kiln with a corner leading. This disposition makes it possible to carry and fire significantly smaller tiles in a given roller kiln. The invention will now be described by way of example only with reference to the single Figure of the accompanying drawing, which shows diagrammatically the inlet side of a firing kiln with its associated roller conveyor and tile alignment unit. In the drawing the diagrammatically shown firing kiln is designated by 10 and its inlet aperture by 11. The drawing shows a view of the inlet side of the kiln 10 with a roller conveyor 12 which is made up of a plurality of identical rollers 18 entering the kiln inlet 11, the direction of motion of the conveyor is indicated by arrow 16. The roller conveyor 12 passes through the firing kiln 10 but the outlet side is not shown in the drawing; the drive and support systems for the rollers 18 are also not shown. A charging unit, the position of which is indicated by arrow 17 but is not shown, puts moulded tiles 14 onto the roller conveyor 12 such that one of their peripheral edges is disposed perpendicular to the conveying direction indicated by arrow 16. The conveyor 12 is driven to move the tiles 14 forwards where they enter alignment unit 13 which acts upon the tiles 14 lying on the rollers turning them, in the described embodiment through an angle of 45 to the direction of arrow 16. In passing through alignment unit 13 the tiles 15 have been turned so that their most acute angled corner points forward, i.e. leads in the direction of travel as shown at 15, so that one of their diagonals is aligned parallel to the conveying direction 16. The diagram shows at 14 and 15 only three tiles lying side by side, for the sake of clarity of illustration. In an industrial form of embodiment of the invention the tiles 14 and 15 would of course be arranged so as to be closely adjacent to one another. This would however not be done so that the leading edges are aligned perpendicular to the conveying direction but so that the most acute angled corners of the various tiles are leading with the various tiles 15 forming rows in which the various edges of adjoining tiles are aligned parallel to one another. The alignment unit 13 is shown in the drawing to be located a short distance in front of the inlet aperture 11 of the kiln 10, the spacing illustrated is merely for the purpose of explanation, the unit 13 can be positioned at any convenient point along the conveyor 12. CLAIMS
1. A method of manufacture of tiles from ceramic or like material in which after moulding the tiles are carried through a firing kiln on a conveyor and prior to being fired the tiles are aligned so that their greatest dimension lies in the direction of travel.
2. A method as claimed in Claim 1 wherein the tiles are aligned prior to being introduced into the firing kiln.
3. Apparatus for the manufacture of tiles from ceramic or like material comprises a firing kiln, extending therethrough a conveyor and, alignment means operative to align the tiles so that their greatest dimension lies in the direction of travel.
4. Apparatus as claimed in Claim 3 wherein the alignment means is positioned in front of the kiln.
5. Apparatus as claimed in Claim 3 or Claim 4 wherein the alignment means is operative to align a rectangular tile so that its diagonal lies in the direction of travel on the conveyor.
6. Apparatus as claimed in any one of Claims 3,4 or5 wherein the conveyor is a roller conveyor made up of a plurality of elongate rollers spaced at short distances from one another.
7. A method of manufacture of tiles from ceramic or like material substantially as hereinbefore described.
8. Apparatus for the manufacture of tiles from ceramic or like material substantially as hereinbefore described with reference to the accompanying drawing.
GB08229013A 1981-10-13 1982-10-11 Kiln feed conveyor Withdrawn GB2111008A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19813140578 DE3140578A1 (en) 1981-10-13 1981-10-13 "METHOD AND DEVICE FOR PRODUCING CERAMIC TILES"

Publications (1)

Publication Number Publication Date
GB2111008A true GB2111008A (en) 1983-06-29

Family

ID=6143993

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08229013A Withdrawn GB2111008A (en) 1981-10-13 1982-10-11 Kiln feed conveyor

Country Status (7)

Country Link
JP (1) JPS5895639A (en)
DD (1) DD204307A5 (en)
DE (1) DE3140578A1 (en)
ES (1) ES8404964A1 (en)
FR (1) FR2514342A1 (en)
GB (1) GB2111008A (en)
IT (1) IT1153220B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113550526A (en) * 2021-07-26 2021-10-26 山东狮子王陶瓷科技有限公司 Production device of antifouling artificial marble ceramic tile

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6215562U (en) * 1985-07-12 1987-01-30
JPS63243677A (en) * 1987-03-30 1988-10-11 品野セラミツクタイル工業株式会社 Method and device for feeding article to be baked in roller hearth kiln
DE3822653C1 (en) * 1988-07-05 1989-09-14 Hans Lingl Anlagenbau Und Verfahrenstechnik Gmbh & Co Kg, 7910 Neu-Ulm, De
FR2650649B1 (en) * 1989-08-02 1991-10-11 Commissariat Energie Atomique VALVE FOR TRANSFERRING VACUUM POWDERY MATERIALS WITHOUT POLLUTION BY THE TRANSVASED MATERIAL
DE19723692C2 (en) * 1996-06-05 2000-11-23 Eisenmann Kg Maschbau Process for firing bricks in a roller kiln and kiln for carrying out the process

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE740254C (en) * 1941-06-01 1943-10-15 Friedrich Siemens K G Rotary hearth furnace
DE2908343A1 (en) * 1979-03-03 1980-09-04 Beumer Maschf Bernhard DEVICE FOR CHANGING THE POSITION OF PIECES ON A CONVEYOR

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113550526A (en) * 2021-07-26 2021-10-26 山东狮子王陶瓷科技有限公司 Production device of antifouling artificial marble ceramic tile

Also Published As

Publication number Publication date
JPS5895639A (en) 1983-06-07
DE3140578A1 (en) 1983-04-21
FR2514342A1 (en) 1983-04-15
IT8223710A0 (en) 1982-10-12
IT1153220B (en) 1987-01-14
ES516310A0 (en) 1984-05-16
ES8404964A1 (en) 1984-05-16
DD204307A5 (en) 1983-11-23
FR2514342B1 (en) 1984-08-31

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)