WO2005019129A2 - Verfahren und vorrichtung zum herstellen von zement - Google Patents
Verfahren und vorrichtung zum herstellen von zement Download PDFInfo
- Publication number
- WO2005019129A2 WO2005019129A2 PCT/EP2004/006356 EP2004006356W WO2005019129A2 WO 2005019129 A2 WO2005019129 A2 WO 2005019129A2 EP 2004006356 W EP2004006356 W EP 2004006356W WO 2005019129 A2 WO2005019129 A2 WO 2005019129A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- roller mill
- feature
- mill
- sulfate
- cement
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C21/00—Disintegrating plant with or without drying of the material
-
- 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
- C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators, shrinkage compensating agents
- C04B22/08—Acids or salts thereof
- C04B22/14—Acids or salts thereof containing sulfur in the anion, e.g. sulfides
- C04B22/142—Sulfates
-
- 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
- C04B7/00—Hydraulic cements
- C04B7/36—Manufacture of hydraulic cements in general
- C04B7/48—Clinker treatment
- C04B7/52—Grinding ; After-treatment of ground cement
-
- 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
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
Definitions
- the invention relates to methods for producing cement according to the preamble of claim 1. It also relates to devices for carrying out the method.
- DD-PS 201 137 From DD-PS 201 137 a method of belite-rich cement with the addition of sulfatic rock materials is known.
- the task was pursued to achieve effective cooling of the Belit clinker and to improve its inhibibility. This was achieved by adding sulphate-containing rocks with a grain diameter ⁇ 10 mm and in an amount of up to 20% in the clinker cooling zone at a medium cooling gradient of the clinker between the firing temperature and 800 ° C.
- Another method for producing cement is known from DE 692 03 096 T.
- it is proposed to add at least a part of the gypsum required for cement production to the clinker in the last section of the clinker cooler, which is the coldest section of the cooler.
- the amount of gypsum added to the clinker cooler should be less than or equal to the smallest amount of gypsum required in the finished cement.
- All three publications have in common that the sulphate-containing material, which is responsible for the targeted change of the cement properties, is added to the still hot cement clinker in order to cool the cement kinker faster without additional energy costs and at the same time to drain and / or partially caffeine the suifate-containing material to reach.
- the water solubility of the sulfate carrier is influenced by drainage. This increases from anhydrite via dihydrate to hemihydrate.
- the degree of drainage of the sulfate carrier has a direct influence on the initial and final strength as well as on the setting speed of the concrete made with such a cement.
- the cement mill is only heated to the temperatures mentioned for the purpose of drying and / or calcining the sulfate carrier, which is present in an amount of less than 10%. is far too complex and expensive. For this reason, many cement manufacturers have begun to buy the sulfate carrier in partially watered form, for example from the production of gypsum fiber boards, and to grind it together with the cement clinker in the cement mill without additional heating. However, the procurement and storage of the partially dewatered gypsum is time, cost and energy consuming. It is also not available everywhere and not always in sufficient quantities.
- the present invention is therefore based on the object of specifying a method for producing cement, in the implementation of which the sulfate carrier can be metered exactly with regard to the degree of drainage and / or calcination and with regard to the grain size and quantity.
- the present invention is based on a combined operation of a conventional, unheated roller mill for cement production with a separate system in which only the sulfate carrier is brought to the desired degree of dewatering.
- This separate system is considerably smaller and can therefore be heated with little energy expenditure, for which purpose the exhaust gases from the cement clinker cooler can preferably be used. Thanks to the combined operation, all facilities for dedusting and intermediate storage of the sulfate carrier are also eliminated.
- the sulfate-containing material is conveyed pneumatically from the separate system into the roller mill or into a classifier of the roller mill circuit. All you need is a pipe.
- the sulfate carrier can also be pre-shredded in the separate plant.
- the desired degree of calcination is advantageously set via the temperature of the hot gas in the separate system or during the pneumatic transport from the separate system to the mill and / or via the residence time of the sulfate carrier in the separate system.
- the method according to the invention is particularly suitable for producing Portland cement.
- the present invention also relates to devices for carrying out the composite process. This object is achieved by a device with the features of claim 8.
- the separate plant for drying and calcining consists of a drum.
- a riser reactor a fluidized bed reactor or a heated chute can be used, depending on the available resources.
- sulfate carrier is also to be ground, hammer mills, roller bowl mills, ball ring mills or the like are suitable as a separate system.
- the cement can be cooled by supplying cooling air or ambient air.
- the amount of cooling air can be chosen to be much larger than the amount of gas required for drying or dewatering the sulfate rock in the separate system.
- a further energy saving can be achieved in that, according to an embodiment of the invention, the roller mill has an external conveyor circuit for the semolina.
- the blower for the process gas of the roller mill is a suction blower.
- the separate system is connected to the roller mill via a pneumatic conveyor line.
- the figure shows purely schematically a plant for the production of cement using a roller mill 5, the cement clinker 1 is metered in via a metering belt 3 and via a rotary valve 4.
- the cement mill 5 is equipped with an external conveyor 6 for the semolina.
- Dry additives 2 also enter mill 5 via metering belt 3 and rotary valve 4.
- the cement flour ground in the cement mill 5 is filtered out of the mill gas in a filter or cyclone 7 and can be drawn off via a rotary valve 9.
- the mill gas is generated in a suction fan 8.
- the sulfate carrier which can be in a wide variety of forms, for example in the form of FGD gypsum, in the form of sulfate-containing rock or in any other form, is stored in a silo 11, from where it arrives in a separate plant 10.
- the sulfate carrier 11 is dewatered and calcined to the desired degree.
- the system 10 is supplied with hot gas from a hot gas generator 13.
- the cement clinker cooler for example, can be considered as a hot gas generator.
- Moist aggregates 12 can be dried in the separate system 10 before they reach the cement mill 5.
- sulfate carriers 11 and additives 12 can also be crushed if necessary.
- the dewatered and optionally comminuted material passes via a pneumatic conveying line 14 into the roller mill 5, where cement clinker, additives 2, 12 and sulfate carriers are ground together to a fine flour.
- the suction fan 8 can provide the process gases for the mill 5 and the separate system 10 as well as the transport gas in the pipeline 14, which results in particularly economical operation.
- the size of the separate installation 10 is correspondingly small.
- the amount of hot gas required for dewatering and / or calcining the sulfate carrier 11 is also small. Therefore, when adding Cooling air, e.g. B. ambient air, the cement in the cement mill can also be specifically cooled. Due to the direct conveyance of the dewatered and possibly crushed sulfate carrier, the otherwise usual filters and silos are no longer required. At the same time, the sulfate carrier is obtained in a precisely controllable particle size and, above all, in an exactly meterable amount, so that the cement flour ground in the cement mill 5 has a constant and precisely defined quality.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Food Science & Technology (AREA)
- Inorganic Chemistry (AREA)
- Crushing And Grinding (AREA)
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
- Processing Of Solid Wastes (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Disintegrating Or Milling (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04739842A EP1646592A2 (de) | 2003-07-23 | 2004-06-11 | Verfahren und vorrichtung zum herstellen von zement |
EA200600309A EA007418B1 (ru) | 2003-07-23 | 2004-06-11 | Способ и устройство для получения цемента |
MXPA06000872A MXPA06000872A (es) | 2003-07-23 | 2004-06-11 | Metodo y dispositivo para producir cemento. |
JP2006520686A JP2006528123A (ja) | 2003-07-23 | 2004-06-11 | セメント製造のための方法と装置 |
US11/336,897 US20070278333A1 (en) | 2003-07-23 | 2006-01-23 | Method and device for producing cement |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10333361.4 | 2003-07-23 | ||
DE10333361A DE10333361A1 (de) | 2003-07-23 | 2003-07-23 | Verfahren und Vorrichtung zum Herstellen von Zement |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/336,897 Continuation US20070278333A1 (en) | 2003-07-23 | 2006-01-23 | Method and device for producing cement |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2005019129A2 true WO2005019129A2 (de) | 2005-03-03 |
WO2005019129A3 WO2005019129A3 (de) | 2005-04-28 |
Family
ID=34042025
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2004/006356 WO2005019129A2 (de) | 2003-07-23 | 2004-06-11 | Verfahren und vorrichtung zum herstellen von zement |
Country Status (8)
Country | Link |
---|---|
US (1) | US20070278333A1 (de) |
EP (1) | EP1646592A2 (de) |
JP (1) | JP2006528123A (de) |
CN (1) | CN100429171C (de) |
DE (1) | DE10333361A1 (de) |
EA (1) | EA007418B1 (de) |
MX (1) | MXPA06000872A (de) |
WO (1) | WO2005019129A2 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3909682A1 (de) | 2020-05-14 | 2021-11-17 | Gebr. Pfeiffer SE | Verfahren und wälzmühle zum thermomechanischen aktivieren eines tongemischs |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE527086C2 (sv) * | 2004-05-13 | 2005-12-20 | Procedo Entpr Etablissement | Processsystem för framställning av en komposit av cementitmaterial med reducerade koldioxidemissioner |
US7591440B2 (en) * | 2004-08-13 | 2009-09-22 | Invensys Systems, Inc. | Methods and systems for cement finishing mill control |
CN102575901A (zh) * | 2009-10-07 | 2012-07-11 | Fl史密斯公司 | 用于制造水泥的方法和设施 |
DE102012020160B4 (de) * | 2012-10-13 | 2016-05-12 | Khd Humboldt Wedag Gmbh | Verfahren zur Herstellung von Zement |
EP3024794A1 (de) | 2013-02-18 | 2016-06-01 | Mustafa Ozsüt | Mit geringer wärme verarbeitete calciumsulfate für zemente mit früher festigkeit und für allgemeinen gebrauch |
DE102013019840A1 (de) * | 2013-11-26 | 2015-05-28 | Khd Humboldt Wedag Gmbh | Verfahren zur Herstellung von Zement |
CN104437808A (zh) * | 2014-12-12 | 2015-03-25 | 徐州中矿大贝克福尔科技股份有限公司 | 一种超湿煤矸石和黄土复合预处理设施和工艺 |
JP2018521849A (ja) * | 2015-07-16 | 2018-08-09 | ロエシェ ゲーエムベーハー | 原料を調製および活性化するための方法および設備構成 |
CN105195268A (zh) * | 2015-09-18 | 2015-12-30 | 江苏融达新材料股份有限公司 | 一种立磨机粉磨锂渣、矿渣复合粉的生产方法 |
CN105396673A (zh) * | 2015-09-18 | 2016-03-16 | 江苏融达新材料股份有限公司 | 一种立磨机粉磨镍铁渣、钢渣复合粉生产方法 |
CN108787045B (zh) * | 2018-08-01 | 2023-12-12 | 河南黎明重工科技股份有限公司 | 一种流化功能的立磨进料溜槽装置 |
DE102018220390A1 (de) * | 2018-11-28 | 2020-05-28 | Thyssenkrupp Ag | Verfahren zur gezielten Trocknung von Sulfaten mittels einer Vertikalmühle |
CN109876886B (zh) * | 2019-03-27 | 2020-09-01 | 太原金圆水泥有限公司 | 一种水泥熟料生产用粉磨设备 |
CN113522739B (zh) * | 2021-07-20 | 2022-12-27 | 安徽长丰海螺水泥有限公司 | 一种水泥高效选粉工艺方法及选粉系统 |
CN113976254B (zh) * | 2021-10-20 | 2023-01-06 | 常州市永祥化工有限公司 | 一种硫铁矿制酸生产用焙烧炉及节能方法 |
DE102021129323A1 (de) * | 2021-11-11 | 2023-05-11 | Khd Humboldt Wedag Gmbh | Fördervorrichtung für eine Anlage zur Herstellung von Zement |
CN114289163B (zh) * | 2021-12-31 | 2023-08-29 | 河南黎明重工科技股份有限公司 | 基于立式辊磨机的钠基膨润土加工方法和系统 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3915432A1 (de) * | 1989-05-11 | 1990-11-15 | Kloeckner Humboldt Deutz Ag | Verfahren zur herstellung von normgerechtem zement |
WO2001062458A1 (en) * | 2000-02-24 | 2001-08-30 | Alessandro Quadrio Curzio | Process to prepare cement mixes |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DK169177B1 (da) * | 1991-11-27 | 1994-09-05 | Smidth & Co As F L | Fremgangsmåde til fremstilling af cement |
CN1031499C (zh) * | 1993-06-05 | 1996-04-10 | 山东省鲁北化工总厂 | 石膏窑外分解工艺与装置 |
DK129594A (da) * | 1994-11-11 | 1996-05-12 | Smidth & Co As F L | Fremgangsmåde til fremstilling af klinker i stationær brændingsreaktor |
JP2001163644A (ja) * | 1999-12-08 | 2001-06-19 | Taiheiyo Cement Corp | セメントの製造方法 |
DE10152991A1 (de) * | 2001-10-26 | 2003-05-08 | Wolff Walsrode Ag | Verfahren und Vorrichtung zur Mahltrocknung |
-
2003
- 2003-07-23 DE DE10333361A patent/DE10333361A1/de not_active Withdrawn
-
2004
- 2004-06-11 MX MXPA06000872A patent/MXPA06000872A/es unknown
- 2004-06-11 EP EP04739842A patent/EP1646592A2/de not_active Withdrawn
- 2004-06-11 CN CNB2004800211859A patent/CN100429171C/zh not_active Expired - Fee Related
- 2004-06-11 EA EA200600309A patent/EA007418B1/ru not_active IP Right Cessation
- 2004-06-11 WO PCT/EP2004/006356 patent/WO2005019129A2/de active Application Filing
- 2004-06-11 JP JP2006520686A patent/JP2006528123A/ja not_active Withdrawn
-
2006
- 2006-01-23 US US11/336,897 patent/US20070278333A1/en not_active Abandoned
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3915432A1 (de) * | 1989-05-11 | 1990-11-15 | Kloeckner Humboldt Deutz Ag | Verfahren zur herstellung von normgerechtem zement |
WO2001062458A1 (en) * | 2000-02-24 | 2001-08-30 | Alessandro Quadrio Curzio | Process to prepare cement mixes |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN Bd. 2000, Nr. 23, 10. Februar 2001 (2001-02-10) -& JP 2001 163644 A (TAIHEIYO CEMENT CORP), 19. Juni 2001 (2001-06-19) * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3909682A1 (de) | 2020-05-14 | 2021-11-17 | Gebr. Pfeiffer SE | Verfahren und wälzmühle zum thermomechanischen aktivieren eines tongemischs |
Also Published As
Publication number | Publication date |
---|---|
US20070278333A1 (en) | 2007-12-06 |
EP1646592A2 (de) | 2006-04-19 |
EA007418B1 (ru) | 2006-10-27 |
CN1826297A (zh) | 2006-08-30 |
DE10333361A1 (de) | 2005-02-10 |
MXPA06000872A (es) | 2006-03-30 |
WO2005019129A3 (de) | 2005-04-28 |
EA200600309A1 (ru) | 2006-06-30 |
JP2006528123A (ja) | 2006-12-14 |
CN100429171C (zh) | 2008-10-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1646592A2 (de) | Verfahren und vorrichtung zum herstellen von zement | |
DE69627145T2 (de) | Verfahren und vorrichtung zur verwendung von hochofenschlacken bei der zementherstellung | |
EP3322534B2 (de) | Verfahren und anlagenanordnung zum aufbereiten und aktivieren eines rohstoffes | |
DE69516667T2 (de) | Verfahren und vorrichtung zur verwendung von stahlschlacken in zementherstellung | |
WO2020058247A1 (de) | Verfahren und anlage zum aufbereiten von material, das zementstein enthält | |
DE102016005285B3 (de) | Verfahren und Anlage zur Aktivierung von Tonen als Zusatzstoff für Beton | |
DE19625538B4 (de) | Verfahren und Anlage zur Herstellung von Zement und Schwefelsäure | |
DE2815161A1 (de) | Verfahren und vorrichtung zur herstellung eines hydraulischen bindemittels | |
DE2933289C2 (de) | Verfahren zum Brennen von Klinker aus Zementrohstoffen | |
DE102007046835B3 (de) | Verfahren und Anlagen zur Herstellung von Mehrkomponentenzementen | |
DE2200532A1 (de) | Verfahren und vorrichtung zum herstellen von mehrphasengipsen | |
DE2820098C2 (de) | ||
DE2228407C3 (de) | Verfahren und Vorrichtung zur Herstellung von Belagmasse für den bituminösen Straßenbau | |
DE2542087A1 (de) | Verfahren zur herstellung wirtschaftlich verwertbarer, homogener rohmehlmischungen | |
DE1646647C3 (de) | Verfahren zur Herstellung von Zement nach den Gips-Schwefelsäure-Verfahren in einem Drehofen | |
WO2021228430A1 (de) | Verfahren und anlage zur aktivierung von tonen | |
DE1646594C3 (de) | Verfahren und Vorrichtung zur Herstellung von für Leichtbeton verwendbaren Pellets | |
DE19647484A1 (de) | Verfahren und Anlage zur Herstellung von Zement | |
WO2017080874A1 (de) | Verfahren zur herstellung von zementklinker | |
DE2045084A1 (en) | Clay preparation plant - for foam concrete | |
DE2657621B2 (de) | Verfahren und Vorrichtung zur Herstellung von Zementklinker aus bergfeuchten Zementrohstoffen | |
WO2023072535A1 (de) | Verfahren zum aktivieren von tonen mit hoher restfeuchtigkeit | |
DE1796018A1 (de) | Verfahren und Vorrichtung zur Herstellung von Zementklinker | |
DE624921C (de) | Vorrichtung zum Mahlen von feuchten Stoffen, wie Mergel, Ton o. dgl. | |
DE4322048A1 (de) | Verfahren zur Herstellung von Dichtmassen aus Bergematerial und Brennanlage |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 200480021185.9 Country of ref document: CN |
|
AK | Designated states |
Kind code of ref document: A2 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A2 Designated state(s): BW GH GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 2004739842 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2006520686 Country of ref document: JP Ref document number: PA/a/2006/000872 Country of ref document: MX Ref document number: 11336897 Country of ref document: US |
|
WWE | Wipo information: entry into national phase |
Ref document number: 192/KOLNP/2006 Country of ref document: IN |
|
WWE | Wipo information: entry into national phase |
Ref document number: 200600309 Country of ref document: EA |
|
WWP | Wipo information: published in national office |
Ref document number: 2004739842 Country of ref document: EP |
|
WWP | Wipo information: published in national office |
Ref document number: 11336897 Country of ref document: US |