EP1004837A1 - Four longitudinal continu con u pour fabriquer des ceramiques de construction - Google Patents

Four longitudinal continu con u pour fabriquer des ceramiques de construction Download PDF

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Publication number
EP1004837A1
EP1004837A1 EP99919274A EP99919274A EP1004837A1 EP 1004837 A1 EP1004837 A1 EP 1004837A1 EP 99919274 A EP99919274 A EP 99919274A EP 99919274 A EP99919274 A EP 99919274A EP 1004837 A1 EP1004837 A1 EP 1004837A1
Authority
EP
European Patent Office
Prior art keywords
furnace
wagons
main body
bricks
ceramic material
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Withdrawn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
EP99919274A
Other languages
German (de)
English (en)
Inventor
Joaquin Plana Querol
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 EP1004837A1 publication Critical patent/EP1004837A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • F27B9/26—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 on or in trucks, sleds, or containers
    • F27B9/262—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 on or in trucks, sleds, or containers on or in trucks
    • 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
    • F27B9/06—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity heated without contact between combustion gases and charge; electrically heated
    • F27B9/10—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity heated without contact between combustion gases and charge; electrically heated heated by hot air or gas
    • 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
    • F27B9/30—Details, accessories or equipment specially adapted for furnaces of these types
    • 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
    • F27B9/30—Details, accessories or equipment specially adapted for furnaces of these types
    • F27B9/3005—Details, accessories or equipment specially adapted for furnaces of these types arrangements for circulating gases
    • F27B9/3011—Details, accessories or equipment specially adapted for furnaces of these types arrangements for circulating gases arrangements for circulating gases transversally
    • 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
    • F27B9/30—Details, accessories or equipment specially adapted for furnaces of these types
    • F27B9/3005—Details, accessories or equipment specially adapted for furnaces of these types arrangements for circulating gases
    • F27B9/3011—Details, accessories or equipment specially adapted for furnaces of these types arrangements for circulating gases arrangements for circulating gases transversally
    • F27B2009/3016—Details, accessories or equipment specially adapted for furnaces of these types arrangements for circulating gases arrangements for circulating gases transversally with arrangements to circulate gases through the charge

Definitions

  • This descriptive report refers to a longitudinal continuous furnace applicable to construction material, the obvious use of which lies on its configuration as a mechanism that causes the drying and baking of the clay with which the construction ceramic material is manufactured so that it acquires its own characteristics.
  • the invention permits the drying and baking of clay by means of providing heat that uses pressurized air as the conductor element. This characteristic gives it good performance and effectiveness for the work entrusted, at the same time as the configuration as a longitudinal and continuous furnace provides the invention with a high degree of automation of the drying and baking process and avoids time losses associated to the intermittency that characterize conventional discontinuous furnaces.
  • the invention has its application scope within the industry dedicated to the manufacture of industrial furnaces, more specifically within the industry dedicated to the manufacture of industrial furnaces applicable to construction ceramic materials.
  • Manufacture of construction ceramic material is based on two fundamental activities, molding and baking, the first of which is normally carried out by introducing the unworked clay under pressure into molds in the negative shape of the brick section it is desired to manufacture, obtaining a continuous form of plastic clay that is subsequently cut into the desired lengths by means of a wire or similar.
  • the clay has homogeneous properties and does not present air bubbles, it is made to pass through rollers located before being molded under pressure. This is usually carried out by means of an endless screw that places the clay in the above described molds.
  • plastic and humid clay bricks are obtained in the length and section desired, they are grouped together and placed in a furnace which first dries them at moderate temperature and then bakes them at an appreciably higher temperature.
  • the furnaces normally used are of the discontinuous and very large type which must be heated before placing the load of bricks to be dried and baked inside them so that, after approximately thirty hours, the supply is cut off and the furnace slowly cooled in order to extract the product.
  • furnaces applicable to the manufacture of construction ceramic material that decreased the time the product is inside them and reduced their general size. These improvements would give rise to a proportional decrease in the investment, proportional to the size, and in the operating costs, proportional to the time the bricks are inside the furnace.
  • the longitudinal continuous furnace applicable to construction ceramic material constitutes an obvious novelty within its field of application, as it allows the drying and baking of construction ceramic material in a substantially shorter time than the conventional discontinuous furnaces applicable to this field, and with a smaller-sized furnace the characteristics indicated as desirable for a device of this type are thus obtained.
  • the invention is constituted of a main body of the furnace in the shape of a very long and squared section tunnel, coated inside with refractory bricks and provided with rails on the floor along which low speed wagons that transport groups of bricks through it circulate.
  • the calories provided inside the invention by the nozzles can be regulated by varying the gas flow burnt per unit of time in same, thus the temperature throughout the main body of the furnace can be varied at will, creating a drying area with a suitable temperature in the initial area of the main body of the furnace, followed by a second high temperature area suitable for the baking of the bricks and a third area, in the final section of the mentioned main body of the furnace, with progressive temperature reduction in order to reach slow cooling of the bricks so that stresses in same are not created.
  • the speed of the wagons must be studied so that, due to the length of the main body of the furnace, the time the bricks are inside said furnace is suitable.
  • the proposed longitudinal continuous furnace applicable to construction ceramic material is made up of a main body of the furnace (1), constituted by a rectangular base prismatic body where one of the sizes parallel to the horizontal is comparatively much larger that the other two, that are appreciably the same, constituting a body in the shape of a squared section tunnel which is covered on the inside by refractory bricks and the upper area of which has a line of hot air nozzles (2) on one of its inside lateral faces that diffuse the hot air provided by gas burners (4), located coaxially on the outside area of the main body of the furnace (1).
  • the diffused air temperature may vary by means of modifying the gas flow with which the mentioned gas burners (4) are supplied.
  • blowers (3) which are supplied by means of compressed air at ambient temperature and the mission of which is to create convection currents inside the main body of the furnace (1) to permit rapid drying and baking of the bricks (5) that go through the inside of the invention a low speed on wagons (6) that circulate on rails (7).
  • the bricks (5) must be placed on the wagons so that their holes are aligned according to the normal direction of the larger size of the main body of the furnace (1) to facilitate the formation of the convection currents and so that these easily penetrate inside said bricks (5).
  • the main body of the furnace (1) is manufactured in brickwork, although it can be perfectly made in teal provided with suitable insulating components.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Tunnel Furnaces (AREA)
  • Furnace Details (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
EP99919274A 1998-05-12 1999-05-10 Four longitudinal continu con u pour fabriquer des ceramiques de construction Withdrawn EP1004837A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
ES9801216U 1998-05-12
ES9801216U ES1040244Y (es) 1998-05-12 1998-05-12 Horno longitudinal continuo aplicable a ceramica de construccion.
PCT/ES1999/000126 WO1999058918A1 (fr) 1998-05-12 1999-05-10 Four longitudinal continu conçu pour fabriquer des ceramiques de construction

Publications (1)

Publication Number Publication Date
EP1004837A1 true EP1004837A1 (fr) 2000-05-31

Family

ID=8304091

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99919274A Withdrawn EP1004837A1 (fr) 1998-05-12 1999-05-10 Four longitudinal continu con u pour fabriquer des ceramiques de construction

Country Status (4)

Country Link
EP (1) EP1004837A1 (fr)
AU (1) AU3710599A (fr)
ES (1) ES1040244Y (fr)
WO (1) WO1999058918A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1842930A1 (fr) * 2006-04-04 2007-10-10 Linde Aktiengesellschaft Procédé de traitement thermique
EP1842931A1 (fr) * 2006-04-04 2007-10-10 Linde Aktiengesellschaft Procédé de traitement de la chaleur
US7955450B2 (en) 2006-04-04 2011-06-07 Linde Aktiengesellschaft Method for heat treatment
CN107660991A (zh) * 2016-07-28 2018-02-06 佛山市顺德区美的电热电器制造有限公司 一种电锅的控温系统及方法和电锅

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4005981A (en) * 1975-04-28 1977-02-01 Hanley Company Tunnel kiln
ES441520A1 (es) * 1975-10-04 1977-04-01 Mazo Davila Vicente Perfeccionamientos en hornos para cocer ceramica, alfareria y similares.
DE3025801C2 (de) * 1980-07-08 1982-10-28 Ludwig Riedhammer GmbH & Co KG, 8500 Nürnberg Tunnelofen zum Brennen von keramischen Werkstücken
DD156391A1 (de) * 1981-02-16 1982-08-18 Hartwig Thiele Durchlaufofen mit schlittenfoerderung,insbesondere fuer den einsinkfarbenbrand
DE3138232C2 (de) * 1981-09-25 1983-09-22 Carl Prof. Dr.-Ing. Kramer Tunnelofen

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9958918A1 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1842930A1 (fr) * 2006-04-04 2007-10-10 Linde Aktiengesellschaft Procédé de traitement thermique
EP1842931A1 (fr) * 2006-04-04 2007-10-10 Linde Aktiengesellschaft Procédé de traitement de la chaleur
US7955450B2 (en) 2006-04-04 2011-06-07 Linde Aktiengesellschaft Method for heat treatment
CN107660991A (zh) * 2016-07-28 2018-02-06 佛山市顺德区美的电热电器制造有限公司 一种电锅的控温系统及方法和电锅

Also Published As

Publication number Publication date
ES1040244U (es) 1999-03-16
AU3710599A (en) 1999-11-29
WO1999058918A1 (fr) 1999-11-18
ES1040244Y (es) 1999-07-16

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