EP4440733A1 - Amélioration apportée à un four vertical - Google Patents

Amélioration apportée à un four vertical

Info

Publication number
EP4440733A1
EP4440733A1 EP22901952.6A EP22901952A EP4440733A1 EP 4440733 A1 EP4440733 A1 EP 4440733A1 EP 22901952 A EP22901952 A EP 22901952A EP 4440733 A1 EP4440733 A1 EP 4440733A1
Authority
EP
European Patent Office
Prior art keywords
plants
calcination
hot water
improvement
product
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.)
Pending
Application number
EP22901952.6A
Other languages
German (de)
English (en)
Other versions
EP4440733A4 (fr
Inventor
Cemal Ünlü
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
Priority claimed from PCT/TR2022/051243 external-priority patent/WO2023101643A1/fr
Publication of EP4440733A1 publication Critical patent/EP4440733A1/fr
Publication of EP4440733A4 publication Critical patent/EP4440733A4/fr
Pending 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
    • F27B1/00—Shaft or like vertical or substantially vertical furnaces
    • F27B1/10—Details, accessories or equipment specially adapted for furnaces of these types
    • F27B1/22—Arrangements of heat-exchange apparatus
    • 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
    • F27B1/00—Shaft or like vertical or substantially vertical furnaces
    • F27B1/10—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
    • F27B15/00—Fluidised-bed furnaces; Other furnaces using or treating finely-divided materials in dispersion
    • F27B15/02—Details, accessories or equipment specially adapted for furnaces of these types
    • 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
    • F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
    • F27D17/10—Arrangements for using waste heat
    • F27D17/18—Arrangements for using waste heat for preheating solid materials
    • 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
    • F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
    • F27D17/20—Arrangements for treatment or cleaning of waste gases
    • F27D17/28—Arrangements for treatment or cleaning of waste gases for cooling waste gases
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J6/00—Heat treatments such as Calcining; Fusing ; Pyrolysis
    • B01J6/001—Calcining

Definitions

  • the invention relates to the improvement in a vertical kiln designed for the calcination and/or calcination in industrial plants operating in the mining sector
  • the process that is indispensable in industrial gypsum, lime, cement etc. plants is carried out by calcination and/or drying kilns
  • the invention relates to the improvement in vertical kilns designed for use in calcination and/or drying processes in industrial plants operating in the mining sector.
  • the simplest way to remove the physically bound water in the concentrate is to heat the materials to a temperature (drying) above the evaporation temperature of water. Evaporation of water is an endothermic process (+ 44 kJ/mol); therefore, energy is required to heat the minerals to the desired temperature and during evaporation. Calcination is referred to as mineral chemical disintegration; and happens when heating the mineral above the disintegration temperature or reducing the partial vapor pressures of the gaseous products to values below the equilibrium vapor pressure during the disintegration reaction at a specified temperature. Calcination takes place in minerals with relatively low decomposition temperature of water, CO2 and other gases chemically bound to metal hydrate and carbonate minerals.
  • Combustion module structures / chambers working with 1 heat furnace (burner) in vertical kiln numbered 2021/012627 (1-1. 1) has been increased to 4 heat furnaces in our invention and the system has been made more efficient in terms of calcination, and the heat exchanger system (3), which has the task of separating the hot water vapor in the product in the system, and it has increased its efficiency by blending the hot water with air and re-introducing the dry and hot air into the system and using this air to preheat the product (preheater chamber) (1- 1.1) and to further reduce fuel consumption.
  • the pure water separated in the heat exchanger system (3.1) can be used as a supplement to other parts of the plant that need pure water.
  • the material enters the machine through the inlet and feedback module on the upper part, hot air is supplied to the machine through the hot air inlet channel on the lower part, and since the vertical operation principle is adopted, movement and transfer, it operates with the fill and discharge method by providing hot air and gas flow without the need for additional energy.
  • preheater module structures/chambers (1) are supported by heat exchanger system (3) for the purpose of evaluating the water vapor coming out of the system and 4-8-12 and more burners (depending on capacity and product) to calcine the general system.
  • heat exchanger system (3) for the purpose of evaluating the water vapor coming out of the system and 4-8-12 and more burners (depending on capacity and product) to calcine the general system.
  • the invention relates to the development of a vertical kiln designed to be used in calcination and/or drying processes in industrial plants operating in the mining sector (construction chemicals plants, calcite production plants, cement plants, lime plants).
  • Preheater module structures/chambers (1-1.1) working with 1 heat furnace (burner) in the vertical furnace numbered 2021/012627 have been increased to 4 heat furnaces in our invention and the system has been made more efficient in terms of calcination
  • the heat exchanger system (3.1) which has the task of separating the hot water vapor in the product in the system, has increased its efficiency by blending the hot water with air and re-introducing dry and hot air into the system (secondary air) and using this air to preheat the product, aiming to further reduce fuel consumption.
  • the pure water separated in the heat exchanger system (3.1) can be used as a supplement to other parts of the plant that need pure water.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Drying Of Solid Materials (AREA)

Abstract

L'invention concerne le développement réalisé dans le four vertical faisant l'objet de la demande numérotée 2021/012627, qui est conçu pour être utilisé dans des procédés de calcination et/ou de séchage dans des installations industrielles évoluant dans le secteur minier.
EP22901952.6A 2021-11-30 2022-11-04 Amélioration apportée à un four vertical Pending EP4440733A4 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR202118846 2021-11-30
PCT/TR2022/051243 WO2023101643A1 (fr) 2021-11-30 2022-11-04 Amélioration apportée à un four vertical

Publications (2)

Publication Number Publication Date
EP4440733A1 true EP4440733A1 (fr) 2024-10-09
EP4440733A4 EP4440733A4 (fr) 2026-04-01

Family

ID=92710312

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22901952.6A Pending EP4440733A4 (fr) 2021-11-30 2022-11-04 Amélioration apportée à un four vertical

Country Status (1)

Country Link
EP (1) EP4440733A4 (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2007233570B2 (en) * 2006-03-31 2010-11-18 Calix Limited System and method for the calcination of minerals
WO2012145802A2 (fr) * 2011-04-27 2012-11-01 Calix Limited Système de réacteur et procédé d'activation thermique de minéraux
EP3221264B1 (fr) * 2014-11-18 2022-02-23 Calix Limited Procédé et appareil de fabrication de composés calcinés pour la production de produits calcinés
WO2018095815A1 (fr) * 2016-11-22 2018-05-31 Outotec (Finland) Oy Procédé et installation de traitement thermique dans un réacteur à lit fluidisé

Also Published As

Publication number Publication date
EP4440733A4 (fr) 2026-04-01

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