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WO2013039461A1 - Four destiné à la cuisson d'articles céramiques - Google Patents

Four destiné à la cuisson d'articles céramiques Download PDF

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Publication number
WO2013039461A1
WO2013039461A1 PCT/UA2012/000068 UA2012000068W WO2013039461A1 WO 2013039461 A1 WO2013039461 A1 WO 2013039461A1 UA 2012000068 W UA2012000068 W UA 2012000068W WO 2013039461 A1 WO2013039461 A1 WO 2013039461A1
Authority
WO
WIPO (PCT)
Prior art keywords
gas
products
kiln
main channel
sections
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/UA2012/000068
Other languages
English (en)
Russian (ru)
Inventor
Александр Юльевич ЛЕВЕСТАМ
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 WO2013039461A1 publication Critical patent/WO2013039461A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • F27B5/00—Muffle furnaces; Retort furnaces; Other furnaces in which the charge is held completely isolated
    • F27B5/06—Details, accessories or equipment specially adapted for furnaces of these types
    • F27B5/14—Arrangements of heating devices
    • 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
    • F27B17/00—Furnaces of a kind not covered by any of groups F27B1/00 - F27B15/00
    • F27B17/0008—Open field furnace for burning bricks
    • 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
    • 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
    • F27D99/00—Subject matter not provided for in other groups of this subclass
    • F27D99/0001—Heating elements or systems
    • F27D99/0033—Heating elements or systems using burners
    • F27D99/0035—Heating indirectly through a radiant surface
    • 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
    • F27D7/00—Forming, maintaining or circulating atmospheres in heating chambers
    • F27D7/04—Circulating atmospheres by mechanical means
    • F27D2007/045—Fans
    • 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
    • Y02P40/00—Technologies relating to the processing of minerals
    • Y02P40/60—Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes

Definitions

  • the invention relates to the field of technology, namely, to continuous kilns and can be used for heat treatment of building ceramic products, in particular, hollow bricks and blocks.
  • the known device for the thermal treatment of ceramic hollow products is selected as the prototype (Appendix 1 - application, Appendix 2 - translation) and consists of a main channel filled products and a circulation channel with fans that provide gas circulation by taking gas from the main channel and returning it to the main channel from the opposite side.
  • a gas circulation system is created that improves the uniformity of the heat treatment of hollow products, but has the following disadvantages.
  • the device is tasked by improving the design of the furnace by introducing additional elements to provide a predetermined and controlled mode of heating, firing and cooling of products, which will ensure strict implementation of the firing technology and, accordingly, the quality of the fired products.
  • the next objective of the invention to the device is that in the furnace by the maximum degree of heat recovery of the products of combustion, steam and air to achieve maximum savings of thermal energy used for firing ceramic products.
  • the problem is solved in that in a kiln for firing ceramic products, including a main channel filled with products and a circulation channel with gas moving devices that circulate gas by taking gas from the main channel and returning it to the main channel from the opposite side, according to the invention , the furnace is divided into sections by partitions with holes.
  • transverse partitions with openings that are capable of passing through limited gas flow and prevent intensive mixing of gas along the length of the furnace.
  • the task set as the basis of the invention is also achieved by the fact that in the partitions between the sections of the furnace, guide elements are additionally made - dampers for creating a directed gas flow between the sections, cutting off part of the circulation stream of the previous section and feeding it to the next section.
  • dampers with adjustable tilt makes it possible to change the speed and direction of gas movement between sections.
  • an intense circulating gas flow is formed in the main channel, which ensures uniform temperature in each section in width and height in the working space of the main channel and a controlled gas flow along the main channel, which reduces the firing time while improving quality products.
  • the device of the kiln for firing ceramic products has another improvement, due to which an additional technical result is obtained.
  • the next task which is the basis of the invention is achieved by the fact that in the circulation channel of the furnace is additionally installed at least one heat exchanger.
  • the heat exchanger can additionally be equipped with a fan to provide the necessary gas flow rate.
  • FIG. 1 - shows a cross section of a kiln for firing ceramic products
  • FIG. 2 execution of transverse partitions with holes in the furnace in the context of figure 1 along the section aa,
  • FIG. 3 the execution of the guide elements in the furnace in the context of figure 1 along the section aa,
  • FIG. 4 execution of the heat exchanger in the furnace in the context of figure 1 along section A-A.
  • the kiln for firing ceramic products is shown in Fig. 1 and consists of an external casing 1, a main channel 2, which is filled with hollow products 3 and a circulation channel 4, separated from the main channel 2 by partitions 5 and necessary to create an intense circulating gas flow that helps to accelerate heat transfer .
  • Fans 6 are installed in the upper part of each section of the main channel 2, for gas extraction from the upper part of the main channel 2 and its supply to the lower part through the circulation channel 4.
  • transverse partitions 7 (Fig. 2) with holes 8, while in the case of a furnace with mechanical movement of hollow products 3, the transverse partitions 7 are made of two parts: a fixed part 7, blocking the circulation channel 4 and the movable part 1a (Fig. 1) moving together with hollow articles 3.
  • inlet 9 (Fig. 2) and exhaust 10 fans can be installed.
  • a heat exchanger 12 is additionally installed, which is additionally equipped with a fan 13.
  • Heating of products can take place from any source of heat: by burning fuel, using an electric heater, or in another way.
  • the design of the kiln for firing ceramic products is applicable both to furnaces with mechanical movement of products, and to furnaces with a fixed arrangement of products.
  • the kiln for ceramic works as follows.
  • the main channel 2 is filled with hollow products 3 either in each section separately - for furnaces with a fixed arrangement of products 3, or through the outer sections - for furnaces with mechanical movement of products 3.
  • the furnace has three zones: a heating, firing and cooling zone.
  • the processes of heat and mass transfer in the furnace are similar to the processes occurring in conventional tunnel and ring furnaces. In the proposed furnace due to the presence of fans 6, the intensity of heat and mass transfer is significantly increased.
  • the heat exchange between the gas medium of the furnace (coolant) and the void products 3 (Fig. 1) within each section is due to the multiple passage of gas around and through the void products 3 by taking gas from the top part of the main channel 2 by the fan 6 and feeding it through the circulation channel 4 to the lower part of the main channel 2.
  • the transfer of thermal energy between the sections (along the main channel 2) is carried out by moving the gas (coolant) through the holes 8 (figure 2) in the partitions 7.
  • the first way to optimize the heat transfer process between sections of the furnace is done by selecting the size of the holes 8 in the partitions 7, while the gas itself is moved by creating a pressure difference between the sections, for example, fans 9 and 10.
  • the second way to optimize the heat transfer process between the sections of the furnace is done by adjusting the slope shutters 11 (Fig. 3).
  • the steam generated in the furnace, as well as the combustion products (when using fuel), by the guide flaps 11 are supplied to the furnace section from which they are taken through the heat exchanger 12, while the incoming gases are cooled in the heat exchanger 12 and the steam is partially condensed, which provides heating of the hollow products 3 (not shown conditionally), filled into the furnace.
  • a fan 13 is used to ensure the necessary gas flow through it.
  • the steam-gas mixture can be supplied to the section from which it is taken to the heat exchanger 12, can be made through openings 8 without shutters 11 due to vacuum, created by the fan 13.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Furnace Details (AREA)
  • Tunnel Furnaces (AREA)

Abstract

Le four destiné à la cuisson d'articles céramiques concerne le domaine de la technique et notamment le domaine des fours de cuisson à action continue, et peut s'utiliser pour le traitement thermique des articles céramiques ou de construction, notamment de briques et de parpaings non pleins. Le four destiné à la cuisson d'articles céramiques comprend un canal principal (2) qui est rempli avec des articles (3) et un canal de circulation (4) comportant des dispositifs de déplacement de gaz (6) assurant sa circulation par le prélèvement du gaz dans le canal principal (2) et par son renvoi dans le canal principal (2) du côté opposé. Le four destiné à la cuisson est divisé en plusieurs sections au moyen de parois avec des orifices. Ces parois séparant les sections comprennent des éléments directeurs qui se présentent comme des volets (11) servant à assurer la circulation d'un flux de gaz entre les sections. Dans le canal de circulation (4) on a également monté un échangeur de chaleur (12) doté d'un ventilateur.
PCT/UA2012/000068 2011-09-16 2012-07-06 Four destiné à la cuisson d'articles céramiques Ceased WO2013039461A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
UAA201111074A UA103519C2 (ru) 2011-09-16 2011-09-16 Печь для обжига керамических изделий
UAA201111074 2011-09-16

Publications (1)

Publication Number Publication Date
WO2013039461A1 true WO2013039461A1 (fr) 2013-03-21

Family

ID=47883549

Family Applications (1)

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PCT/UA2012/000068 Ceased WO2013039461A1 (fr) 2011-09-16 2012-07-06 Four destiné à la cuisson d'articles céramiques

Country Status (2)

Country Link
UA (1) UA103519C2 (fr)
WO (1) WO2013039461A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3348943A1 (fr) * 2017-01-11 2018-07-18 Wishing Star Marble Co. Ltd. Dispositif et procédé d'optimisation de pierre naturelle
CN108931142A (zh) * 2018-05-25 2018-12-04 永济市海军新型墙材有限公司 一种节能烧结窑的节能工艺方法和装置
RU231774U1 (ru) * 2024-10-29 2025-02-11 Общество с ограниченной ответственностью "КРИП ТЕХНО" Рабочая камера для обжига порошкообразной смеси карбида кремния

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1560960A1 (ru) * 1987-03-03 1990-04-30 С.А.Вдовиченко и П.М.Анисимов Печь дл обжига углеродных изделий
SU1686286A1 (ru) * 1989-02-07 1991-10-23 Предприятие П/Я М-5409 Камерна печь дл обжига углеродистых заготовок
RU2015477C1 (ru) * 1991-04-01 1994-06-30 Научно-исследовательский и проектно-конструкторский институт металлургической теплотехники цветной металлургии и огнеупоров Печь для обжига углеродных изделий
RU2069828C1 (ru) * 1991-11-06 1996-11-27 Норск Хюдро, А.С. Кольцевая секционная печь для обжига углеродных заготовок
WO2008063538A2 (fr) * 2006-11-21 2008-05-29 Corning Incorporated Procédé et appareil d'enlèvement thermique d'un liant d'un corps vert cellulaire thermique

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1560960A1 (ru) * 1987-03-03 1990-04-30 С.А.Вдовиченко и П.М.Анисимов Печь дл обжига углеродных изделий
SU1686286A1 (ru) * 1989-02-07 1991-10-23 Предприятие П/Я М-5409 Камерна печь дл обжига углеродистых заготовок
RU2015477C1 (ru) * 1991-04-01 1994-06-30 Научно-исследовательский и проектно-конструкторский институт металлургической теплотехники цветной металлургии и огнеупоров Печь для обжига углеродных изделий
RU2069828C1 (ru) * 1991-11-06 1996-11-27 Норск Хюдро, А.С. Кольцевая секционная печь для обжига углеродных заготовок
WO2008063538A2 (fr) * 2006-11-21 2008-05-29 Corning Incorporated Procédé et appareil d'enlèvement thermique d'un liant d'un corps vert cellulaire thermique

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3348943A1 (fr) * 2017-01-11 2018-07-18 Wishing Star Marble Co. Ltd. Dispositif et procédé d'optimisation de pierre naturelle
CN108931142A (zh) * 2018-05-25 2018-12-04 永济市海军新型墙材有限公司 一种节能烧结窑的节能工艺方法和装置
RU231774U1 (ru) * 2024-10-29 2025-02-11 Общество с ограниченной ответственностью "КРИП ТЕХНО" Рабочая камера для обжига порошкообразной смеси карбида кремния

Also Published As

Publication number Publication date
UA103519C2 (ru) 2013-10-25

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