DE3513820C1 - Gas lance - Google Patents

Gas lance

Info

Publication number
DE3513820C1
DE3513820C1 DE19853513820 DE3513820A DE3513820C1 DE 3513820 C1 DE3513820 C1 DE 3513820C1 DE 19853513820 DE19853513820 DE 19853513820 DE 3513820 A DE3513820 A DE 3513820A DE 3513820 C1 DE3513820 C1 DE 3513820C1
Authority
DE
Germany
Prior art keywords
gas
air
lance
supply
pulses
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.)
Expired
Application number
DE19853513820
Other languages
German (de)
Inventor
Antonius 4542 Tecklenburg Dierkes
Karl-Heinz 4500 Osnabrück Holsing
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.)
Keller Ofenbau GmbH
Original Assignee
Keller Ofenbau GmbH
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 Keller Ofenbau GmbH filed Critical Keller Ofenbau GmbH
Priority to DE19853513820 priority Critical patent/DE3513820C1/en
Application granted granted Critical
Publication of DE3513820C1 publication Critical patent/DE3513820C1/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/38—Torches, e.g. for brazing or heating
    • 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
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/16—Introducing a fluid jet or current into the charge
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C2205/00—Pulsating combustion
    • F23C2205/10—Pulsating combustion with pulsating fuel supply

Abstract

With a gas lance for pulsed blowing in of liquid gas into a baking kiln in the ceramic industry, air is, between the gas pulse blasts, pressed through the lance body so that the gas residues which have settled in the inside of the lance body are removed with the air. To control the air supply, it is appropriate in this case that the gas can be supplied with a higher pressure in relation to the air of the gas lance so that the pressure difference between gas and air controls the air supply in such a manner that the latter is shut off during the gas pulses.

Description

Patentansprüche: 1. Gaslanze zum impulsweisen Einblasen von Flüssiggas in einen Brennofen der keramischen Industrie, bestehend aus einem Einlaßkörper (2) mit Dosierschraube (3) zur Gasmengenregulierung und einer Gaszufuhr (4) mit einem diese steuernden Magnetventil (7) sowie aus einem an den Einlaßkörper (2) anschließenden Lanzenkörper (6) aus feuerfester Keramik, dadurch gekennzeichnet, daß neben der Gaszufuhr (4) eine Luftzufuhr (5) in den Einlaßkörper (2) einmündet, über die zwischen den Gasimpulsstößen Luft durch den Lanzenkörper (6) drückbar ist.Claims: 1. Gas lance for the pulsed injection of liquid gas in a furnace of the ceramic industry, consisting of an inlet body (2) with metering screw (3) for gas volume regulation and a gas supply (4) with one this controlling solenoid valve (7) as well as from one connected to the inlet body (2) Lance body (6) made of refractory ceramic, characterized in that in addition to the Gas supply (4) an air supply (5) opens into the inlet body (2) via which between the gas pulse bursts air can be pushed through the lance body (6).

2. Gaslanze nach Anspruch 1, dadurch gekennzeichnet, daß das Gas gegenüber der Luft mit einem höheren Druck zuführbar ist. 2. Gas lance according to claim 1, characterized in that the gas can be supplied with a higher pressure compared to the air.

Die Erfindung betrifft eine Gaslanze nach dem Oberbegriff des Anspruchs 1. The invention relates to a gas lance according to the preamble of the claim 1.

Eine derartige Gaslanze ist bekannt (Prospekt »Der sekundärluftfreie Gasimpulsbrenner« der Firma C. Keller GmbH u. CO. KG vom Juni 1983). Mit ihr wird gasförmiger Brennstoff in einstellbaren Impulsen in einen Ofen zum Brennen keramischer Produkte eingegeben. Such a gas lance is known (prospectus »The secondary air free Gas pulse burner «from C. Keller GmbH and CO. KG from June 1983). With her will gaseous fuel in adjustable pulses in a furnace for burning ceramic Products entered.

Beim Einsatz dieser Gaslanze an den genannten Öfen hat sich gezeigt, daß beim Betrieb mit Flüssiggasen (Propan, Butan) aufgrund der hohen Umgebungstemperaturen im Ofenraum der keramischen Brennöfen Verkrackungserscheinungen in den keramischen Lanzenkörpern auftreten, die dazu führen, daß die Lanzenkörper verstopfen. Die Lanzenkörper müssen daher nach einiger Zeit ausgetauscht werden.When using this gas lance on the above-mentioned ovens, it has been shown that that when operating with liquefied gases (propane, butane) due to the high ambient temperatures Cracking phenomena in the ceramic kilns in the furnace chamber of the ceramic kilns Lance bodies occur, which lead to clogging of the lance body. The lance bodies therefore have to be replaced after a while.

Der Erfindung liegt die Aufgabe zugrunde, eine Gaslanze der gattungsgemäßen Art zu schaffen, mit der das Verstopfen des Lanzenkörpers verhindert wird. The invention is based on the object of providing a gas lance of the generic type To create a way of preventing clogging of the lance body.

Diese Aufgabe wird durch die im kennzeichnenden Teil des Anspruchs 1 aufgeführten Merkmale gelöst. This task is carried out by the characterizing part of the claim 1 listed features solved.

Zur Steuerung der Luftzufuhr ist es dabei angebracht, daß das Gas gegenüber der Luft der Gaslanze mit einem höheren Druck zuführbar ist, so daß die Druckdifferenz zwischen Gas und Luft die Luftzufuhr derart steuert, daß diese während der Gasimpulse abgestellt ist. To control the air supply, it is appropriate that the gas compared to the air of the gas lance can be supplied with a higher pressure, so that the Pressure difference between gas and air controls the air supply so that this during the gas pulses are switched off.

Die Gaslanze nach der Erfindung ermöglicht es somit auf einfache Weise, und zwar durch Luftdurchspülung des Lanzenkörpers zwischen den Gasimpulsstößen, den Lanzenkörper von den Verkrackungsrückständen derart zu reinigen, daß eine Verstopfung verhindert wird. The gas lance according to the invention thus makes it possible in a simple manner Way, by purging the body of the lance with air between the bursts of gas, to clean the lance body from the cracking residues in such a way that a blockage is prevented.

Durch die direkte Eingabe geringster Mengen Luft in den Lanzenkörper wird der Einsatz der Gaslanze für alle Gasarten ohne Einschränkung ermöglicht, da etwaige Rückstände mit der Luft ausgetragen werden.By directly entering the smallest amounts of air into the lance body the use of the gas lance for all types of gas is made possible without restriction because any residues are discharged with the air.

In der Zeichnung ist eine Gaslanze nach der Erfindung anhand eines Ausführbeispiels schematisch dargestellt. Die Zeichnung zeigt die Gaslanze in geschnittener Weise. In the drawing, a gas lance according to the invention is based on a Exemplary embodiment shown schematically. The drawing shows the gas lance in section Way.

Die Gaslanze (i) besteht aus einem Einlaßkörper (2), in welchem eine Dosierschraube (3) eine Mengeneinstellung des von einer Gaszufuhr (4) zugeführten Gases vornimmt. Die Gaszufuhr (4), eine Luftzufuhr (5) und ein hohler Lanzenkörper (6) aus feuerfester Keramik sind am Einlaßkörper (2) befestigt, während ein Magnetventil (7) an der Gaszufuhr (4) das zugeführte Gas in Impulsen regelt. Die Gaszufuhr (4) und die Luftzufuhr (5) münden im Einlaßkörper (2), so daß von dort das Gas und die Luft in den Lanzenkörper (6) einströmen können. Beim Einsatz an keramischen Brennöfen ist der Lanzenkörper (6) hohen im Ofenraum der keramischen Brennöfen herrschenden Temperaturen ausgesetzt. The gas lance (i) consists of an inlet body (2) in which a Dosing screw (3) a quantity adjustment of the supplied from a gas supply (4) Gas. The gas supply (4), an air supply (5) and a hollow lance body (6) made of refractory ceramic are attached to the inlet body (2) while a solenoid valve (7) at the gas supply (4) regulates the supplied gas in pulses. The gas supply (4) and the air supply (5) open into the inlet body (2), so that from there the gas and the Air can flow into the lance body (6). When used on ceramic kilns the lance body (6) is high prevailing in the furnace chamber of the ceramic kiln Exposed to temperatures.

Zwischen den Gasimpulsen, wenn die Gaszufuhr (4) abgesperrt ist, wird von der Luftzufuhr (5) her Luft durch den Lanzenkörper (6) gedrückt, wodurch die noch in dem Lanzenkörper (6) befindlichen Gasrückstände ausgeblasen werden. Between the gas pulses, when the gas supply (4) is shut off, air is forced through the lance body (6) from the air supply (5), whereby the gas residues still in the lance body (6) are blown out.

Claims (1)

Da der Gasdruck höher als der Druck der durch die Luftzufuhr (5) zugeführten Luft ist, wird die Luft während der Gasimpulse zurückgedrängt und vom Eingang in den Einlaßkörper (2) abgehalten. Die Druckdifferenz zwischen Gas und Luft bewirkt also, daß während der Gasimpulse die Luft nicht in den Einlaßkörper (2) einströmen und damit den Lanzenkörper (6) nicht durchströmen kann, während die Luft am Ende der Gasimpulse freien Zutritt zum Einlaßkörper (2) und zum Lanzenkörper (6) hat. Since the gas pressure is higher than the pressure of the air supply (5) supplied air is, the air is pushed back during the gas pulses and from the Entrance to the inlet body (2) held. The pressure difference between gas and Air therefore has the effect that the air does not enter the inlet body during the gas pulses (2) flow in and thus cannot flow through the lance body (6), while the Air at the end of the gas pulses free access to the inlet body (2) and the lance body (6) has.
DE19853513820 1985-04-17 1985-04-17 Gas lance Expired DE3513820C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19853513820 DE3513820C1 (en) 1985-04-17 1985-04-17 Gas lance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19853513820 DE3513820C1 (en) 1985-04-17 1985-04-17 Gas lance

Publications (1)

Publication Number Publication Date
DE3513820C1 true DE3513820C1 (en) 1986-07-24

Family

ID=6268337

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19853513820 Expired DE3513820C1 (en) 1985-04-17 1985-04-17 Gas lance

Country Status (1)

Country Link
DE (1) DE3513820C1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3835360A1 (en) * 1988-10-17 1990-04-19 Keller Spezialtechnik Gmbh Tunnel furnace
EP0368033A1 (en) * 1988-10-17 1990-05-16 Keller GmbH Device for the control of the gas pulse burners in a tunnel furnace
EP2239237A3 (en) * 2009-04-07 2010-12-22 Nipro Corporation Method for producing medical glass container and burner for inner surface treatment of medical glass container

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DE-Prospekt "Der sekundärluftfreie Gasimpulsbrenner von Keller", Firma C. Keller GmbH u. Co.KG, Juni 1983 *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3835360A1 (en) * 1988-10-17 1990-04-19 Keller Spezialtechnik Gmbh Tunnel furnace
EP0368033A1 (en) * 1988-10-17 1990-05-16 Keller GmbH Device for the control of the gas pulse burners in a tunnel furnace
EP2239237A3 (en) * 2009-04-07 2010-12-22 Nipro Corporation Method for producing medical glass container and burner for inner surface treatment of medical glass container
US8522575B2 (en) 2009-04-07 2013-09-03 Nipro Corporation Method for producing medical glass container and burner for inner surface treatment of medical glass container
EP3048086A1 (en) * 2009-04-07 2016-07-27 Nipro Corporation Burner for inner surface treatment of medical glass container and medical glass container
EP3483128A1 (en) * 2009-04-07 2019-05-15 Nipro Corporation Method for producing medical glass container

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Legal Events

Date Code Title Description
8100 Publication of the examined application without publication of unexamined application
D1 Grant (no unexamined application published) patent law 81
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee