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DE2928753A1 - Cooler for fired material - has separate fans supplied from common suction line with flow meter - Google Patents

Cooler for fired material - has separate fans supplied from common suction line with flow meter

Info

Publication number
DE2928753A1
DE2928753A1 DE19792928753 DE2928753A DE2928753A1 DE 2928753 A1 DE2928753 A1 DE 2928753A1 DE 19792928753 DE19792928753 DE 19792928753 DE 2928753 A DE2928753 A DE 2928753A DE 2928753 A1 DE2928753 A1 DE 2928753A1
Authority
DE
Germany
Prior art keywords
cooler
air
flow meter
suction line
fan
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Withdrawn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
DE19792928753
Other languages
German (de)
Inventor
Karl Friedrich Dipl Ing Wedel
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.)
Claudius Peters AG
Original Assignee
Claudius Peters AG
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 Claudius Peters AG filed Critical Claudius Peters AG
Priority to DE19792928753 priority Critical patent/DE2928753A1/en
Publication of DE2928753A1 publication Critical patent/DE2928753A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27DDETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D15/00Handling or treating discharged material; Supports or receiving chambers therefor
    • F27D15/02Cooling
    • F27D15/0206Cooling with means to convey the charge
    • F27D15/0213Cooling with means to convey the charge comprising a cooling grate
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27DDETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D15/00Handling or treating discharged material; Supports or receiving chambers therefor
    • F27D15/02Cooling
    • F27D15/0206Cooling with means to convey the charge
    • F27D15/0213Cooling with means to convey the charge comprising a cooling grate
    • F27D2015/0246Combination of fixed and movable grates
    • F27D2015/0253Gradin grates

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Furnace Details (AREA)

Abstract

A cooler for fired material wherein the cooling air is used as sec. air for the furnace has a series of ventilation sections, each with its own fan. One fan is set to a predetermined pressure and all the fans draw air from a common suction line which hold a flow meter. The cooler is esp. for cooling cement clinker and is of the type where variation in sec. air demand cannot be compensated by contrary variations in the amount of exhaust gas, and separate control of the fans would be complex.

Description

Beschreibung description

Die Erfindung bezieht sich auf einen Kühler für Brenngut mit einem als Rostkühler ausgeführten ersten Kühlerabschnitt, dessen Kühlluft in vorbestimmter Menge abluftfrei einem Brennofen als Sekundärluft zuzuführen ist und der eine Mehrzahl hintereinander angeordneter Belüftungsabschnitte aufweist, die je von einem gesonderten Ventilator gespeist sind, wobei ein Ventilator auf eine vorbestimmte Pressung gg selt ist.The invention relates to a cooler for items to be fired with a designed as a grate cooler first cooler section, the cooling air in predetermined Amount of exhaust air is to be fed to a kiln as secondary air and the majority has successively arranged ventilation sections, each of a separate Fan are fed, with a fan to a predetermined pressure gg is strange.

Bei Kühlern für Brenngut, insbesondere bei Klinkerkühlern in der Zementherstellung, führt man die Kühlerabluft oder die Abluft eines Kühlerteils dem Brennofen als Sekundärluft zu. Bei bekannten Kühlern sind der Kühlerteil, dessen Kühlluft dem Ofen zuzuführen ist, und ein folgender Kühlerteil, dessen Kühlerabluft in die Atmosphäre abgeführt wird, nicht voneinander getrennt. Der Ofen kann daher aus dem Kühler die jeweils benötigte Luftmenge ansaugen, wobei Änderungen des Sekundärluftbedarfs bei einer bestimmten Einstellung der Kühlluftgebläse lediglich eine Änderung der abgeführten Abluft bewirken. Eine Regelung der Kühlluftventilatoren, abhängig von dem Sekundärluftbedarf, ist nicht erforderlich.For coolers for firing material, especially for clinker coolers in cement production, the cooler exhaust air or the exhaust air from a cooler part is fed to the furnace as secondary air to. In known coolers, the cooler part, the cooling air of which is to be fed to the furnace is, and a subsequent cooler part, the cooler exhaust air is discharged into the atmosphere is not separated from each other. The furnace can therefore get out of the cooler each time suck in the required amount of air, with changes in the secondary air requirement at a certain setting of the cooling air fan only changes the discharged Cause exhaust air. A regulation of the cooling air fans, depending on the secondary air requirement, not necessary.

Das gilt auch dann, wenn ein Kthlluftventilator oder mehrere auf konstante Pressung geregelt sind. Eine solche pressungsabhängige Regelung findet sich häufig im ersten BelUftungsabschnitt, um die Pressung unabhängig von Ungleichmäßigkeiten der Materialzufuhr zu machen.This also applies if one or more cooling air fans are on constant Pressing are regulated. Such a pressure-dependent regulation is often found in the first ventilation section to ensure that the pressure is independent of irregularities to make the material feed.

Die Erfindung setzt jedoch einen abluftfreien Kühler voraus, bei dem also die Schwankungen des Sekundärluftbedarfs nicht durch entsprechend gegensinnige Schwankungen der Abluftmenge ausgeglichen werden. In einem solchen Fall müssen Kühlluft- ; na. rungen, die aufgrund der Regelung des pressungskonstant geregelten Ventilators oder aufgrund anderer Einflüsse auftreten, durch entsprechende Gegenregelung der übrigen Ventilatoren oder eines anderen Ventilators ausgeglichen werden. Jedoch wäre es schwierig, aufwendig und fehlerbehaftet, wenn man die jeweilige Fördermenge der einzelnen Ventilatoren durch Messung der einzelnen Ansaugmengen oder aus Drehzahl und Leistungsaufgabe bestimmen wollte. Diese Meßwerte müßten elektronisch verarbeitet werden. Der Erfindung liegt daher die Aufgabe zugrunde, einen Kühler zu schaffen, der die Regelung der Sekundärluftmenge auf unkompliziertere Weise insbesondere für die Anwendung in Ländern, in denen weniger qualifizierte Arbeitskräfte zur Verfügung stehen, gestattet.However, the invention requires an exhaust air-free cooler in which So the fluctuations in the secondary air requirement are not caused by correspondingly opposite directions Fluctuations in the amount of exhaust air are compensated. In such a case, cooling air ; na. ments due to the regulation of the constant pressure regulated fan or occur due to other influences, through appropriate counter-regulation of the other fans or another fan are compensated. However it would be difficult, time-consuming and error-prone if one considers the respective flow rate of the individual fans by measuring the individual intake quantities or from the speed and wanted to determine the performance task. These measured values would have to be processed electronically will. The invention is therefore based on the object of creating a cooler, which regulates the amount of secondary air in a more uncomplicated way, especially for the application in countries where less skilled workers are available stand, permitted.

Die erfindungsgemäße Lösung besteht darin, daß alle Ventilatoren aus einer gemeinsamen Saugleitung ansaugen, die ein Durchflußmeßorgan enthält, welches auf die Regeleinrichtungen wirt.The solution according to the invention is that all fans from suck a common suction line containing a flow meter which on the control equipment.

Die Erfindung wird im folgenden näher unter Bezugnahme auf die Zeichnung erläutert, die ein vorteilhaftes Ausführungsbeispiel in einer Darstellung veranschaulicht.The invention is explained in more detail below with reference to the drawing explained, which illustrates an advantageous embodiment in a representation.

Das zu kühlende Gut fällt aus dem Drehrohrofen 1 innerhalb der im wesentlichen geschlossenen Kühlerkämmer 2 auf den Kühlrost 3. Der Kühlgutauslaß ist bei 4 durch eine Klappe oder dergleichen geschlossen, die zwar das Gut austreten läßt, jedoch keinen Luftaustausch in größerem Umfang gestattet. Auf komplizierte Vorrichtungen kann an dieser Stelle verzichtet werden, wenn - wie allgemein üblich - der Druck in der Kammer 2 vom Atmosphärendruck nicht wesentlich abweicht.The material to be cooled falls out of the rotary kiln 1 within the im essentially closed radiator chamber 2 on the cooling grate 3. The refrigerated goods outlet is closed at 4 by a flap or the like, although the good exit but no air exchange is permitted on a large scale. Complicated Devices can be dispensed with at this point if - as is common practice - The pressure in the chamber 2 does not differ significantly from atmospheric pressure.

Unter dem Rost 3 befinden sich vier Kühlluftkammern 4,5,6,7, die durch ihnen jeweils zugeordnete Ventilatoren 8,9,10,11 gespeist werden. Diese sind an einen gemeinsamen Saugsammler 12 angeschlossen, dessen Saugstutzen 13 mit einem Durchflußmeßgerät 14 ausgerüstet ist.Under the grate 3 there are four cooling air chambers 4,5,6,7 that go through fans 8,9,10,11 assigned to them are fed. These are on a common suction collector 12 connected, the suction port 13 with a Flow meter 14 is equipped.

Der Druck in der Kammer 4 wird durch entsprechende Regelung des Ventilators 8 durch eine von den übrigen Ventilatoren unabhängige Regelung konstant gehalten. Die Ventilatoren 5 und 6 werden nicht oder nur grob geregelt. Der Ventilator 7 wird abhängig von dem Durchflußmeßorgan 14 und der von diesem festgestellten Durchflußmenge im Vergleich mit dem Sekundärluftbedarf geregelt.The pressure in the chamber 4 is determined by appropriate regulation of the fan 8 kept constant by a control that is independent of the other fans. The fans 5 and 6 are not or only roughly controlled. The fan 7 is depending on the flow meter 14 and the flow rate determined by this regulated in comparison with the secondary air requirement.

Claims (1)

Kühler für Brenngut mit einem abluftfreien Kühlerabschnitt Patentanspruch Kühler für Brenngut mit einem als Rostkühler ausgeführten ersten Kühlerabschnitt, dessen Kühlluft in vorbestimmter Menge abluftfrei einem Brennofen als Sekundärluft zuzuführen ist, und der eine Mehrzahl hintereinander angeordneter Belüftungsabschnitte aufweist, die je von einem gesonderten Ventilator gespeist sind, wobei ein Ventilator auf eine vorbestimmte Pressung geregelt ist, dadurch gekennzeichnet, daß alle Ventilatoren (8, 9, 10, 11) aus einer gemeinsamen Saugleitung (13) ansaugen, die ein Durchflußmeßorgan (14) enthält.Cooler for items to be fired with an exhaust air-free cooler section Patent claim Cooler for items to be fired with a first cooler section designed as a grate cooler, its cooling air in a predetermined amount, free of exhaust air, to a kiln as secondary air is to be supplied, and a plurality of ventilation sections arranged one behind the other which are each fed by a separate fan, one fan is regulated to a predetermined pressure, characterized in that all fans (8, 9, 10, 11) from a common suction line (13), which is a flow meter (14) contains.
DE19792928753 1979-07-17 1979-07-17 Cooler for fired material - has separate fans supplied from common suction line with flow meter Withdrawn DE2928753A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19792928753 DE2928753A1 (en) 1979-07-17 1979-07-17 Cooler for fired material - has separate fans supplied from common suction line with flow meter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19792928753 DE2928753A1 (en) 1979-07-17 1979-07-17 Cooler for fired material - has separate fans supplied from common suction line with flow meter

Publications (1)

Publication Number Publication Date
DE2928753A1 true DE2928753A1 (en) 1981-02-12

Family

ID=6075889

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19792928753 Withdrawn DE2928753A1 (en) 1979-07-17 1979-07-17 Cooler for fired material - has separate fans supplied from common suction line with flow meter

Country Status (1)

Country Link
DE (1) DE2928753A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4004393A1 (en) * 1990-02-13 1991-08-14 Krupp Polysius Ag Cooling of hot layer in rotary-drum furnace - involves selective operation of magnetic valves directing forced air jets at grates which require additional cooling
CN103558365A (en) * 2013-11-22 2014-02-05 四川峨胜水泥集团股份有限公司 Testing device for simulating cement clinker calcination cooling

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4004393A1 (en) * 1990-02-13 1991-08-14 Krupp Polysius Ag Cooling of hot layer in rotary-drum furnace - involves selective operation of magnetic valves directing forced air jets at grates which require additional cooling
CN103558365A (en) * 2013-11-22 2014-02-05 四川峨胜水泥集团股份有限公司 Testing device for simulating cement clinker calcination cooling
CN103558365B (en) * 2013-11-22 2016-03-23 四川峨胜水泥集团股份有限公司 The test unit of simulation burning clinker of cement cooling

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Legal Events

Date Code Title Description
8180 Miscellaneous part 1

Free format text: DER ANMELDER LAUTET RICHTIG CLAUDIUS PETERS AG

8181 Inventor (new situation)

Free format text: WEDEL, DIPL.-WIRTSCH.-ING., KARL FRIEDRICH VON, DIPL.-ING., 2000 HAMBURG, DE

8139 Disposal/non-payment of the annual fee