EP1275925B1 - Method and apparatus for destroying locally compact materials in hot thermal installations - Google Patents

Method and apparatus for destroying locally compact materials in hot thermal installations Download PDF

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Publication number
EP1275925B1
EP1275925B1 EP02015038A EP02015038A EP1275925B1 EP 1275925 B1 EP1275925 B1 EP 1275925B1 EP 02015038 A EP02015038 A EP 02015038A EP 02015038 A EP02015038 A EP 02015038A EP 1275925 B1 EP1275925 B1 EP 1275925B1
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EP
European Patent Office
Prior art keywords
cooling
lance
head
blasting material
blasting
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 - Lifetime
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EP02015038A
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German (de)
French (fr)
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EP1275925A1 (en
Inventor
Frank Eichner
Ulrich Hess
Arno Pajarskas
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Bang and Clean GmbH
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Hans Eichner GmbH and Co KG
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Publication of EP1275925A1 publication Critical patent/EP1275925A1/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
    • F28G7/00—Cleaning by vibration or pressure waves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
    • B08B7/0007—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by explosions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J3/00—Removing solid residues from passages or chambers beyond the fire, e.g. from flues by soot blowers
    • F23J3/02—Cleaning furnace tubes; Cleaning flues or chimneys
    • 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
    • F27D25/00—Devices or methods for removing incrustations, e.g. slag, metal deposits, dust; Devices or methods for preventing the adherence of slag
    • F27D25/006—Devices or methods for removing incrustations, e.g. slag, metal deposits, dust; Devices or methods for preventing the adherence of slag using explosives
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
    • F28G7/00—Cleaning by vibration or pressure waves
    • F28G7/005—Cleaning by vibration or pressure waves by explosions or detonations; by pressure waves generated by combustion processes
    • 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
    • F27D1/00—Casings; Linings; Walls; Roofs
    • F27D1/16—Making or repairing linings increasing the durability of linings or breaking away linings
    • F27D1/1694—Breaking away the lining or removing parts thereof
    • 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
    • F27D9/00—Cooling of furnaces or of charges therein

Definitions

  • the invention relates to a method and a device for the local destruction of compact materials, such as slag approaches, masonry residues, etc. in hot thermal systems such as heat exchangers, industrial furnaces, firing systems, metallurgical melting vessels, using a disintegrating agent, which at the front end of a lance in a coolant flowing through the cooling tank is arranged and brought by holding and moving the rear end of the lance through an opening of the hot thermal plant in the immediate vicinity of the material to be destroyed and ignited by an igniter at an arbitrary time.
  • hot thermal systems such as heat exchangers, industrial furnaces, firing systems, metallurgical melting vessels
  • EP 1 067 349 A2 it is proposed in EP 1 067 349 A2 to cool the explosive means arranged at the front end of a rod during the introduction into a hot, in-service heat exchanger with a coolant.
  • the disintegrating agent is surrounded by a cooling device.
  • the coolant flows in at the front end, flows through the cooling device and flows around the disintegrating means arranged at the rear end of the cooling device and then leaves the cooling device through openings in the cover which is semipermeable at its rear end.
  • the stated object is procedurally achieved by the method according to claim 1, in particular the fact that the coolant flows into the cooling head formed as a double tube with cooling head and supply head via the lance in the supply head, through the inner tube or the inner cooling jacket to the front end of the cooling head is guided and flows past the explosives containing explosives container over and then between the inner cooling jacket and the outer tube forming the cooling head housing back to the supply head and is promoted from this from the hot thermal plant out.
  • the coolant from the cooling tank and to lead out of the hot thermal system again, the disadvantages described in the introduction with known methods are avoided, namely that the coolant remains in the hot thermal systems.
  • the coolant is expediently discharged through an outside of the lance line, the length of this line the local conditions, where the coolant must be promoted adapted.
  • the supply of the coolant to the cooling tank takes place through the hollow interior of the lance, which at its front end via a screw or plug connection with the supply head of the cooling tank and at its rear end via a clutch, such as a GK clutch, with a coolant inlet, for example a pressurized water line or a coolant pump is connected.
  • a clutch such as a GK clutch
  • the explosive is cooled by the passing coolant so that even with a longer residence time of the explosive in the hot thermal plant no spontaneous ignition of the explosive can take place and a time-consuming optimal positioning of the lance with the explosive is possible.
  • the bulk pack is not arranged around the explosives container, but only at a localized location next to the explosives container.
  • aluminum powder could also be used to increase the detonation rate.
  • the disintegrant is housed in a separate container.
  • pasty, powdery or granular disintegrating agents can be used, since the disintegrant does not come into direct contact with the coolant and can not be washed away.
  • FIG. 1 shows a ready-to-use device for explosive device according to the invention with a cooling container 1 in a sectional view, consisting essentially of the cooling head 10 and supply head 11 for cooling a disintegrating means 5 with coolant 4, the cooling container 1 having a lance 3 for positioning and Supply of the cooling tank 1 is connected at the site.
  • Coolant inlet 12 is a coolant outlet 15 which connects the coolant outlet 14 of the cooling tank 1 via the flexible coolant discharge line 16 with the arranged on the lance 3 coolant drain line 31.
  • the supply head 11 has a plurality of walls 13, 17, 18. These are from the inside to the outside of the cooling head receiving tube 13, in which the explosives container 25 is inserted, the supply pipe 17 with deferred inner cooling jacket 27 and the supply housing 13 with deferred cooling head housing 23. To stabilize the Wandurgen 13, 17, 18 with each other between thedekopfamrohr 18 and the supply pipe 17 three spacer webs 26 and to offset between the supply pipe 17 and the supply housing 13 three spacer webs 24 are arranged.
  • the blasting agent container 25 inserted into the cooling head receiving tube 18 consists of a tube with closed ends 28, 29 filled with an insulating and insulating agent 53, 54, for example sand, with the disintegrating agent 5 and the primer 51.
  • the ignition cables 52 of the primer 51 are off led out the explosives container 25 and pushed through the rear wall 19 of the cooling head receiving tube 18. From there they are through the coolant inlet opening 12 and through the cavity of the lance 3 and out of this by a screw plug 33 to an example electric ignition (the ignition device is not shown) out.
  • the explosives container 25 is located between the explosive container 25 and the inner cooling jacket 27 which is located in a packaging shell 56 granular bulk material 55.
  • a packaging shell 56 granular bulk material 55 In Fig. 2, the location of this bulk package 55, 56 and resulting from this position effective direction 57 of the bulk material in the Detonation of the explosive 5 drawn.
  • the serving as a closure body of the cooling tank 1 cooling head housing 23rd consists in the illustrated embodiment of a tubular flexible material, which is tied at its front end with a closure means, for example, a Rödeldrahtzwirbel and pushed with its rear end on the supply housing 13 and there is also fixed with a Rödeldrahtzwirbel 21.
  • a closure means for example, a Rödeldrahtzwirbel and pushed with its rear end on the supply housing 13 and there is also fixed with a Rödeldrahtzwirbel 21.
  • it can be provided as a cooling head housing 23, a sheet metal container.
  • the filling of the blasting agent container 25 is carried out as follows: First, one side of the container is closed. At the closure end 28 then a small amount of insulating and insulating material 54, such as sand, filled. Now the explosive 5 is introduced with the primer 51 in the container 25, pushed by means of a loading stick to the closure end 28 and caulked to the pipe wall. The remaining cavity is filled with the insulating and insulating 53, the ignition cable 52 are led out of the container 25. The thus filled container 25 is now closed at the filling end 29 as well. Subsequently, the closed explosives container 25 is pushed into the receiving ring 18 of the supply head 11 and fixed there by frictional engagement, wherein the ignition cable 52 are led out through a hole in the rear wall 19 of the supply head 11.
  • insulating and insulating material 54 such as sand
  • the supply head 11, the rear end of the cooling container 1, is made of a stable material, such as cast steel and therefore can be used for several blasts. For this purpose, however, it is necessary that a safety distance of at least 50 mm is maintained between the disintegrating means 5 and the supply head 11, which is to be taken into account in the dimensioning of the length of the disintegrating container 25 and of the charged disintegrant quantity.
  • cooling head receiving tube 18 In addition to the cooling head receiving tube 18 are located with a larger diameter at the supply head 11, two more walls, namely the supply pipe 17, to which the inner tube or the inner cooling jacket 27 of the cooling head 10 and the supply housing 13, to which the outer tube or the cooling head housing 23 are pushed ,
  • the connection between the components is expediently carried out by a clip closure, by screwing or by means of twisted-wire twists (in the case of a flexible tube).
  • the granulated bulk material 55 is first introduced between the inner tube or the inner cooling jacket 27 and the explosives container 25 - adjacent to the disintegrating means 5 - wrapped in a dimensionally stable manner with a packaging material 56, for example a plastic film.
  • the completion of the preparation is the postponement of the cooling head housing 23 on the supply housing 13 of the supply head 11 and the attachment of the fully assembled cooling tank 1 on the lance 3.
  • the ignition cable 52 (or non-illustrated non-tubular hose connection for transmission the shock waves triggering an ignition) are guided through the cavity of the lance 3 to the rear end of the lance 3 and further by connecting thedestoffabhnestutzens 15 of the supply head 11 with the outside of the lance 3 arranged discharge line 31.
  • the blasting device according to the invention is now ready for use. It can now be used at any time, including the lead out of the lance 3 and screw plug 33 ignition cable (ignition channel) 52 are connected to the ignition device and theméstoffzu- and -ab experience.
  • the coolant 4 After emerging from the inner cooling jacket 27, the coolant 4 is deflected at the rear end of the cooling head housing 23 and now flows between the inner cooling jacket 27 and the cooling head housing 23 back to the supply head 11, where it leaves through the coolant outlet 14 to the outside of the supply head eleventh arranged coolant outlet pipe 15, the flexible coolant discharge line 16 and the outside of the lance 3 arranged coolant discharge line 31 to be discharged from the hot thermal plant.
  • the explosive 5 located in the explosive container 25 is intensively and steadily cooled, so that adequate fire protection of the explosive 5 against premature destruction by flame or radiant heat is provided.
  • the coolant flow is expediently stopped in order to avoid the disadvantages described in the prior art.
  • the illustrated embodiment represents only one possible device for carrying out the method according to the invention.
  • the materials to be destroyed and the local conditions Extensive variations are possible, for example with regard to the dimensioning of the cooling tank and lance, the execution of the various couplings and Zündclud die arrangementen, type and amount of disintegrant and granular bulk material, while maintaining the features of the main claim thereby.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Furnace Details (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
  • Processing Of Solid Wastes (AREA)
  • Furnace Charging Or Discharging (AREA)

Abstract

Process for local destruction of compact material, e.g. clinker coating, masonry remains, etc., in hot thermal systems such as heat exchangers, industrial ovens, furnaces, and metallurgical melting vessels, uses an explosive (5) arranged on the front end of a lance (3) in a cooling container (1) through which coolant (4) flows. The explosive is inserted through an opening in the hot thermal system directly adjacent to the material to be destroyed by holding and moving the rear end of the lance and is ignited by an ignition device. The coolant flows into the cooling container designed as a double tube having a cooling head (10) and a supply head (11) over the lance into the supply head, through the inner tube/inner cooling casing (27) to the front end of the cooling head, past the explosive container (25), between the inner cooling casing and the cooling head housing (23) back to the supply head, and from this out of the hot thermal system. An Independent claim is also included for a device for carrying out the above process.

Description

Die Erfindung betrifft ein Verfahren und eine Vorrichtung zur lokalen Zerstörung kompakter Materialien, beispielsweise Schlackenansätzen, Mauerwerkresten etc. in heißen thermischen Anlagen wie beispielsweise Wärmetauschern, Industrieöfen, Feuerungsanlagen, metallurgischen Schmelzgefäßen, mit Hilfe eines Sprengmittels, welches am vorderen Ende einer Lanze in einem kühlmitteldurchflossenen Kühlbehälter angeordnet ist und das durch Halten und Bewegen des hinteren Endes der Lanze durch eine Öffnung der heißen thermischen Anlage in unmittelbare Nähe des zu zerstörenden Materials gebracht und mittels einer Zündeinrichtung zu einem frei wählbaren Zeitpunkt gezündet wird.The invention relates to a method and a device for the local destruction of compact materials, such as slag approaches, masonry residues, etc. in hot thermal systems such as heat exchangers, industrial furnaces, firing systems, metallurgical melting vessels, using a disintegrating agent, which at the front end of a lance in a coolant flowing through the cooling tank is arranged and brought by holding and moving the rear end of the lance through an opening of the hot thermal plant in the immediate vicinity of the material to be destroyed and ignited by an igniter at an arbitrary time.

Derartige gewollt herbeigeführte Zerstörungen mit Hilfe von Sprengungen sind für verschiedene Anwendungszwecke bekannt, wobei diese Sprengungen in heißen Anlagen bis zu hohen Temperaturen hin durchgeführt werden. Bei der Durchführung der Sprengungen handelt es sich um technisch oft recht komplizierte Aufgaben, die ein hohes Maß an exakter Vorbereitung und Durchführung der Sprengarbeiten erfordern, da diese Arbeiten meistens unter Aufrechterhaltung der in unmittelbarer Nachbarschaft ablaufenden Produktion der entsprechenden Anlage durchgeführt werden müssen. Die teilweise extrem hohen Temperaturen in den zu sprengenden Materialien und thermischen Anlagen stellen zudem große Anforderungen an das sprengtechnische Personal. Es sind deshalb auch unterschiedliche Verfahren und Vorrichtungen bekannt, um derartige Sprengungen innerhalb von heißen thermischen Anlagen durchzuführen.Such intentionally induced destructions by means of blasting are known for various applications, these blasts are carried out in hot plants up to high temperatures. The blasting operations are often technically complicated tasks which require a high degree of exact preparation and execution of the blasting work, since most of this work must be carried out while maintaining the production of the equipment in the immediate vicinity. The sometimes extremely high temperatures in the materials to be blasted and thermal systems also make great demands on the blasting personnel. Therefore, different methods and devices are known to perform such blasts within hot thermal systems.

Aus der Patentschrift US-A-2,840,365 ist ein Verfahren bekannt, bei dem zur Beseitigung von Schlackenansätzen in einem Ofen in vorinstallierten Kühlrohren, die von einem Kühlmittel durchströmt und gekühlt werden, nach Beendigung der Kühlung ein Sprengmittel eingebracht und gezündet wird. Eine optimale Positionierung ist dabei nicht möglich. Auch besteht die Gefahr einer Temperatur bedingten vorzeitigen Auslösung der Sprengung, da nach dem Einbringen des Sprengmittels in das Kühlrohr keine weitere Kühlung mehr durchgeführt wird.From US Pat. No. 2,840,365 a method is known in which, in order to eliminate slag deposits in a furnace in preinstalled cooling tubes, through which coolant flows and is cooled, an explosive is introduced and ignited after cooling is complete. Optimal positioning is not possible. There is also the risk of a premature triggering of the blast caused by temperature, since after the blasting agent has been introduced into the cooling tube, no further cooling is carried out.

Aus der Patentschrift GB-823353 ist es bekannt, Ansätze in metallurgischen Elektroöfen mit Hilfe eines am vorderen Ende einer Stange befindlichen Sprengmittels, welches mit der Stange in eine optimale Position gebracht werden kann, zu sprengen. Das Sprengmittel ist dabei von einer dickeren Isolierschicht umgeben, durch die das Sprengmittel nach seinem Einbringen in den heißen Ofen nur sehr langsam aufgeheizt wird, so dass zur Handhabung der Stange zur optimalen Positionierung eine längere Zeitspanne zur Verfügung steht, bevor eine Selbstzündung erfolgen kann.It is known from GB-823353 to crack approaches in metallurgical electric furnaces by means of a blasting means located at the front end of a bar, which can be brought into an optimal position with the bar. The explosive is surrounded by a thicker insulating layer through which the explosive is heated only very slowly after its introduction into the hot furnace, so that a longer period of time is available for handling the rod for optimal positioning before auto-ignition can take place.

Um eine solche Selbstzündung in jedem Fall auszuschließen, wird in der EP 1 067 349 A2 vorgeschlagen, das am vorderen Ende einer Stange angeordnete Sprengmittel auch während des Einbringens in einen heißen, in Betrieb befindlichen Wärmetauscher mit einem Kühlmittel zu kühlen. Hierzu ist das Sprengmittel von einer Kühlvorrichtung umhüllt. In diese Kühlvorrichtung strömt das Kühlmittel am vorderen Ende herein, durchströmt die Kühlvorrichtung und umströmt das am hinteren Ende der Kühlvorrichtung angeordnete Sprengmittel und verlässt dann die Kühlvorrichtung durch Öffnungen in der an ihrem hinteren Ende semipermeabel ausgebildeten Umhüllung.In order to exclude such auto-ignition in any case, it is proposed in EP 1 067 349 A2 to cool the explosive means arranged at the front end of a rod during the introduction into a hot, in-service heat exchanger with a coolant. For this purpose, the disintegrating agent is surrounded by a cooling device. In this cooling device, the coolant flows in at the front end, flows through the cooling device and flows around the disintegrating means arranged at the rear end of the cooling device and then leaves the cooling device through openings in the cover which is semipermeable at its rear end.

Neben dem Nachteil, dass wegen des direkten Umströmens des Sprengmittels kein pulver- oder granulatförmiges Sprengmittel verwendet werden kann, besteht ein weiterer Nachteil darin, dass kein homogenes Umströmen und Kühlen des Sprengmittels gewährleistet ist, da kein Einfluss auf den Strömungsweg des Kühlmittels genommen werden kann. Es ist daher nicht sicher gestellt, dass auch das Ende der Kühleinrichtung in Kontakt mit noch kühlem Kühlmittel kommt, da die Möglichkeit besteht, dass das Kühlmittel bereits vorher durch die Öffnungen in der semipermeablen Umhüllung austritt. Schließlich ist noch als Nachteil zu nennen, dass das aus der Kühlvorrichtung austretende Kühlmittel eventuell zu unangenehmen Erscheinungen führen kann, wie beispielsweise

  • Verschlammen der Arbeitsflächen
  • Eindringen des Kühlmittels in die zu zerstörenden Materialien
  • Gefährdung elektrischer Anlagen (soweit vorhanden)
  • unerwünschte Reaktionen des Kühlmittels mit den heißen Gasen und Feststoffen der thermischen Anlage
  • Kontamination bzw. Reaktion des abzureinigenden Materials
  • zusätzliche Verhärtung der Oberflächen.
In addition to the disadvantage that due to the direct flow around the explosive means no powder or granular disintegrant can be used, there is a further disadvantage that no homogeneous flow around and cooling of the disintegrant is ensured, since no influence on the flow path of the coolant can be taken. It is therefore not ensured that the end of the cooling device comes into contact with still cool coolant, since there is the possibility that the coolant already exits through the openings in the semi-permeable enclosure before. Finally, it should be mentioned as a disadvantage that the refrigerant emerging from the cooling device may possibly lead to unpleasant phenomena, such as, for example
  • Sludging the work surfaces
  • Penetration of the coolant into the materials to be destroyed
  • Danger to electrical systems (if available)
  • undesirable reactions of the coolant with the hot gases and solids of the thermal plant
  • Contamination or reaction of the material to be cleaned
  • additional hardening of the surfaces.

Ausgehend von diesem bekannten Stand der Technik ist es Aufgabe der Erfindung, ein Verfahren und eine Vorrichtung anzugeben, mit deren Hilfe ein Sprengmittel in optimaler Weise in unmittelbare Nähe des zu zerstörenden heißen Materials gebracht und dabei gekühlt werden kann, ohne dass die geschilderten Nachteile sich einstellen können.Based on this known prior art, it is an object of the invention to provide a method and an apparatus by means of which a disintegrating agent can be brought in an optimal manner in the immediate vicinity of the hot material to be destroyed and thereby cooled, without the described disadvantages occur can.

Die gestellte Aufgabe wird verfahrensmäßig durch das Verfahren gemãß Anspruchs 1 gelöst, insbesondere dadurch, dass das Kühlmittel in den als Doppelrohr mit Kühlkopf und Versorgungskopf ausgebildeten Kühlbehälter über die Lanze in den Versorgungskopf einströmt, durch das Innenrohr bzw. den Innenkühlmantel bis zum vorderen Ende des Kühlkopfes geführt wird und dabei an dem das Sprengmittel enthaltenden Sprengmittelbehälter vorbei strömt und dann zwischen dem Innenkühlmantel und dem das Außenrohr formenden Kühlkopfgehäuse wieder zurück zum Versorgungskopf und von diesem aus der heißen thermischen Anlage heraus gefördert wird.The stated object is procedurally achieved by the method according to claim 1, in particular the fact that the coolant flows into the cooling head formed as a double tube with cooling head and supply head via the lance in the supply head, through the inner tube or the inner cooling jacket to the front end of the cooling head is guided and flows past the explosives containing explosives container over and then between the inner cooling jacket and the outer tube forming the cooling head housing back to the supply head and is promoted from this from the hot thermal plant out.

Eine Vorrichtung zur Durchführung des Verfahrens ist im Anspruchs 10 erwähnt, und wird insbesondere dadurch gekennzeichnet, dass

  1. a) der Kühlbehälter rohrförmig ausgebildet ist und aus einem Versorgungskopf und einem Kühlkopf besteht, wobei der Kühlkopf aus zwei auf den Versorgungskopf aufgesteckten ineinander angeordneten Behältnissen, einem äußeren Kühlkopfgehäuse und einem inneren Innenkühlmantel gebildet ist, zwischen die das Kühlmittel über die gesamte Länge des Kühlbehälters zur Lanze zurück gefördert wird;
  2. b) ein im Innenkühlmantel des Kühlbehälters mit radialem Abstand angeordneter verschlossener Sprengmittelbehälter, der das Sprengmittel, eine Zündkapsel sowie ein Dämm- und Isoliermittel, beispielsweise Sand, enthält, wobei der vom Innenkühlmantel und vom Sprengmittelbehälter gebildete radiale Zwischenraum als ringförmiger Strömungskanal für das Kühlmittel dient;
  3. c) im radialen Zwischenraum zwischen dem Innenkühlmantel des Kühlbehälters und dem Sprengmittelbehälter ein die Sprengwirkung unterstützendes granulatförmiges Schüttgut formfest von einer Verpackungshülle umhüllt, dem Sprengmittel benachbart eingeklemmt ist.
An apparatus for carrying out the method is mentioned in claim 10, and is characterized in particular in that
  1. a) the cooling container is tubular and consists of a supply head and a cooling head, wherein the cooling head consists of two plugged onto the supply head nested containers, an outer cooling head housing and an inner cooling jacket is formed, between which the coolant over the entire length of the cooling tank to Lance is promoted back;
  2. b) a closed explosive agent container arranged radially spaced in the cooling jacket of the cooling container and containing the explosive, a primer and an insulating and insulating agent, for example sand, the radial gap formed by the inner cooling jacket and the explosive container being used as an annular flow channel for the coolant;
  3. c) in the radial gap between the inner cooling jacket of the cooling tank and the explosives container, the explosive effect supporting granular bulk material form-tight wrapped by a packaging wrapper, the explosive is adjacent clamped.

Durch die erfindungsgemäße Maßnahme, das Kühlmittel aus dem Kühlbehälter und aus der heißen thermischen Anlage wieder herauszuführen, werden die eingangs bei bekannten Verfahren geschilderten Nachteile vermieden, nämlich dass das Kühlmittel in den heißen thermischen Anlagen verbleibt. Das Kühlmittel wird dabei zweckmäßigerweise durch eine außen an der Lanze angeordnete Leitung abgeführt, wobei die Länge dieser Leitung den örtlichen Gegebenheiten, wohin das Kühlmittel gefördert werden muss, angepasst ist.By the measure according to the invention, the coolant from the cooling tank and to lead out of the hot thermal system again, the disadvantages described in the introduction with known methods are avoided, namely that the coolant remains in the hot thermal systems. The coolant is expediently discharged through an outside of the lance line, the length of this line the local conditions, where the coolant must be promoted adapted.

Die Zuführung des Kühlmittels zum Kühlbehälter erfolgt durch den hohlen Innenraum der Lanze, die an ihrem vorderen Ende über eine Schraub- oder Steckverbindung mit dem Versorgungskopf des Kühlbehälters und an ihrem hinteren Ende über eine Kupplung, beispielsweise einer GK-Kupplung, mit einem Kühlmittelzulauf, beispielsweise einer unter Druck stehenden Wasserleitung oder einer Kühlmittelpumpe verbunden ist. Auf diese Weise wird eine Zwangsförderung des Kühlmittels, ausgehend vom Kühlmittelzulauf durch die Lanze in die thermische Anlage hinein, dann durch das Innenrohr des Kühlbehälters am Sprengmittelbehälter vorbei bis zum vorderen Ende des Kühlbehälters, dann durch das Außenrohr des Kühlbehälters zurück und über die außen an der Lanze angeordnete Leitung aus der thermischen Anlage aufrechterhalten.The supply of the coolant to the cooling tank takes place through the hollow interior of the lance, which at its front end via a screw or plug connection with the supply head of the cooling tank and at its rear end via a clutch, such as a GK clutch, with a coolant inlet, for example a pressurized water line or a coolant pump is connected. In this way, a forced delivery of the coolant, starting from the coolant inlet through the lance in the thermal system into it, then through the inner tube of the cooling tank on the explosives container over to the front end of the cooling tank, then through the outer tube of the cooling tank back and on the outside of the Lance arranged line maintained from the thermal plant.

Das Sprengmittel wird dabei durch das vorbei strömende Kühlmittel so gekühlt, dass auch bei einer längeren Verweilzeit des Sprengmittels in der heißen thermischen Anlage keine Selbstentzündung des Sprengmittels erfolgen kann und auch eine zeitaufwendige optimale Positionierung der Lanze mit dem Sprengmittel möglich ist.The explosive is cooled by the passing coolant so that even with a longer residence time of the explosive in the hot thermal plant no spontaneous ignition of the explosive can take place and a time-consuming optimal positioning of the lance with the explosive is possible.

Eine derartige optimale Positionierung ist oftmals erforderlich, um eine möglichst weitgehende Zerstörung des kompakten Materials zu erreichen, ohne dabei wertvolle Bauteile der thermischen Anlage mit zu zerstören, wenn nicht, wie bei bekannten Verfahren, die Sprengung in einem vorher erzeugten Bohrloch erfolgen soll.Such optimal positioning is often required to achieve the greatest possible destruction of the compact material, without destroying valuable components of the thermal system with, if not, as in known methods, the blasting in a previously created wellbore to take place.

Zur Unterstützung der durch die Sprengung angestrebten Zerstörung befindet sich deshalb - benachbart dem Sprengmittel - eine Packung aus einem granulatförmigen Schüttgut, welches bei der Detonation des Sprengmittels gegen das zu zerstörende Material geschossen wird. Damit die Wirkung des Schüttgutes auch gezielt in eine gewünschte Richtung und nicht gestreut erfolgt, ist die Schüttgutpackung nicht rund um den Sprengmittelbehälter, sondern nur an einer örtlich begrenzten Stelle neben dem Sprengmittelbehälter angeordnet. Alternativ zum beschriebenen Schüttgut oder zusätzlich könnte auch Aluminiumpulver verwendet werden, um die Detonationsgeschwindigkeit zu erhöhen.In order to support the demolition sought by the demolition is therefore - adjacent to the explosive - a pack of granular bulk material, which is shot at the detonation of the explosive material against the material to be destroyed. So that the effect of the bulk material also takes place deliberately in a desired direction and not scattered, the bulk pack is not arranged around the explosives container, but only at a localized location next to the explosives container. Alternatively to the bulk material described or in addition, aluminum powder could also be used to increase the detonation rate.

Gemäß der Erfindung ist das Sprengmittel in einem separaten Behälter untergebracht. Auf diese Weise können auch pastöse, pulverförmige oder granulatförmige Sprengmittel verwendet werden, da das Sprengmittel nicht in direkten Kontakt mit dem Kühlmittel gelangt und nicht weggespült werden kann.According to the invention, the disintegrant is housed in a separate container. In this way, pasty, powdery or granular disintegrating agents can be used, since the disintegrant does not come into direct contact with the coolant and can not be washed away.

Weitere Vorteile, Merkmale und Einzelheiten der Erfindung werden nachfolgend an einem in Zeichnungsfiguren dargestellten Ausführungsbeispiel näher erläutert:Further advantages, features and details of the invention will become apparent below explained in more detail in an embodiment shown in drawing figures:

Es zeigen:

Fig. 1
einen Kühlbehälter mit Lanze,
Fig. 2
einen Schnitt entlang der Linie A-A der Figur 1,
Fig. 3
einen Schnitt entlang der Linie B-B der Figur 1.
Show it:
Fig. 1
a cooling container with lance,
Fig. 2
a section along the line AA of Figure 1,
Fig. 3
a section along the line BB of Figure 1.

Figur 1 zeigt eine gebrauchsfertig zur Sprengung montierte Vorrichtung gemäß der Erfindung mit einem Kühlbehälter 1 in geschnittener Darstellung, bestehend im Wesentlichen aus dem Kühlkopf 10 und Versorgungskopf 11 zur Kühlung eines Sprengmittels 5 mit Kühlmittel 4, wobei der Kühlbehälter 1 mit einer Lanze 3 zur Positionierung und Versorgung des Kühlbehälters 1 am Einsatzort verbunden ist.FIG. 1 shows a ready-to-use device for explosive device according to the invention with a cooling container 1 in a sectional view, consisting essentially of the cooling head 10 and supply head 11 for cooling a disintegrating means 5 with coolant 4, the cooling container 1 having a lance 3 for positioning and Supply of the cooling tank 1 is connected at the site.

Am hinteren Ende des Kühlbehälters 1 befindet sich der Versorgungskopf 11, der mit seiner mittig angeordneten Kühlmittelzulauföffnung 12 auf das konische Mundstück 34 der Lanze 3 aufsteckbar oder sonst wie verbindbar ist (die Lanze 3 und der Kühlbehälter 1 sind aus Platzgründen getrennt voneinander dargestellt. Oberhalb der Kühlmittelzulauföffnung 12 befindet sich ein Kühlmittelablaufstutzen 15, der den Kühlmittelablauf 14 des Kühlbehälters 1 über die flexible Kühlmittelablaufleitung 16 mit der an der Lanze 3 angeordneten Kühlmittelablaufleitung 31 verbindet.At the rear end of the cooling container 1 there is the supply head 11, which can be plugged or otherwise connected to the conical mouthpiece 34 of the lance 3 with its centrally arranged coolant inlet opening 12 (the lance 3 and the cooling container 1 are shown separated from each other for reasons of space Coolant inlet 12 is a coolant outlet 15 which connects the coolant outlet 14 of the cooling tank 1 via the flexible coolant discharge line 16 with the arranged on the lance 3 coolant drain line 31.

Mit radialem Abstand voneinander besitzt der Versorgungskopf 11 mehrere Wandungen 13, 17, 18. Es sind dies von innen nach außen das Kühlkopfaufnahmerohr 13, in das der Sprengmittelbehälter 25 eingeschoben ist, der Versorgungsstutzen 17 mit aufgeschobenem Innenkühlmantel 27 und das Versorgungsgehäuse 13 mit aufgeschobenem Kühlkopfgehäuse 23. Zur Stabilisierung der Wandurgen 13, 17, 18 untereinander sind zwischen dem Kühlkopfaufnahmerohr 18 und dem Versorgungsstutzen 17 drei Abstandsstege 26 und dazu versetzt zwisten dem Versorgungsstutzen 17 und dem Versorgungsgehäuse 13 drei Abstandsstege 24 angeordnet.At a radial distance from each other, the supply head 11 has a plurality of walls 13, 17, 18. These are from the inside to the outside of the cooling head receiving tube 13, in which the explosives container 25 is inserted, the supply pipe 17 with deferred inner cooling jacket 27 and the supply housing 13 with deferred cooling head housing 23. To stabilize the Wandurgen 13, 17, 18 with each other between the Kühlkopfaufnahmerohr 18 and the supply pipe 17 three spacer webs 26 and to offset between the supply pipe 17 and the supply housing 13 three spacer webs 24 are arranged.

Aus den Figuren 2 und 3, die einen Schnitt entlang der Linie A-A bzw. der Linie B-B der Figur 1 zeigen, ist die Anordnung dieser Stege 24, 26 besonders gut erkennbar.From Figures 2 and 3, which show a section along the line A-A and the line B-B of Figure 1, the arrangement of these webs 24, 26 is particularly well visible.

Der in das Kühlkopfaufnahmerohr 18 eingeschobene Sprengmittelbehälter 25 besteht aus einem Rohr mit verschlossenen Enden 28, 29, gefüllt mit einem Dämm- und Isoliermittel 53, 54, beispielsweise Sand, mit dem Sprengmittel 5 und der Zündkapsel 51. Die Zündkabel 52 der Zündkapsel 51 sind aus dem Sprengmittelbehälter 25 herausgeführt und durch die Rückwand 19 des Kühlkopfaufnahmerohr 18 durchgesteckt. Von dort sind sie durch die Kühlmittelzulauföffnung 12 und durch den Hohlraum der Lanze 3 und aus dieser heraus durch eine Verschlussschraube 33 zu einer beispielsweise elektrischen Zündeinrichtung (die Zündeinrichtung ist nicht dargestellt) geführt.The blasting agent container 25 inserted into the cooling head receiving tube 18 consists of a tube with closed ends 28, 29 filled with an insulating and insulating agent 53, 54, for example sand, with the disintegrating agent 5 and the primer 51. The ignition cables 52 of the primer 51 are off led out the explosives container 25 and pushed through the rear wall 19 of the cooling head receiving tube 18. From there they are through the coolant inlet opening 12 and through the cavity of the lance 3 and out of this by a screw plug 33 to an example electric ignition (the ignition device is not shown) out.

Oberhalb des Sprengmittelbehälters 25 befindet sich, eingeklemmt zwischen dem Sprengmittelbehälter 25 und dem Innenkühlmantel 27 das in einer Verpackungshülle 56 befindliche granulatförmige Schüttgut 55. In Fig. 2 ist die Lage dieses Schüttgutpakets 55, 56 und die aus dieser Lage resultierende Wirkrichtung 57 des Schüttgutes bei der Detonation des Sprengmittels 5 eingezeichnet.Above the explosives container 25 is located between the explosive container 25 and the inner cooling jacket 27 which is located in a packaging shell 56 granular bulk material 55. In Fig. 2, the location of this bulk package 55, 56 and resulting from this position effective direction 57 of the bulk material in the Detonation of the explosive 5 drawn.

Das als Verschlusskörper des Kühlbehälters 1 dienende Kühlkopfgehäuse 23 besteht im dargestellten Ausführungsbeispiel aus einem schlauchförmigen flexiblen Material, das an seinem vorderen Ende mit einem Verschlussmittel, beispielweise einer Rödeldrahtzwirbel zugebunden und mit seinem hinteren Ende auf dem Versorgungsgehäuse 13 aufgeschoben und dort gleichfalls mit einer Rödeldrahtzwirbel 21 fixiert ist. Alternativ kann als Kühlkopfgehäuse 23 auch ein Blechbehältnis vorgesehen sein.The serving as a closure body of the cooling tank 1 cooling head housing 23rd consists in the illustrated embodiment of a tubular flexible material, which is tied at its front end with a closure means, for example, a Rödeldrahtzwirbel and pushed with its rear end on the supply housing 13 and there is also fixed with a Rödeldrahtzwirbel 21. Alternatively it can be provided as a cooling head housing 23, a sheet metal container.

Die Füllung des Sprengmittelbehälters 25 wird wie folgt durchgeführt: Zunächst wird eine Seite des Behälters verschlossen. An das Verschlussende 28 wird dann eine geringe Menge des Dämm- und Isoliermaterials 54, beispielsweise Sand, gefüllt. Nun wird das Sprengmittel 5 mit der Zündkapsel 51 in den Behälter 25 eingebracht, mit Hilfe eines Ladestocks zum Verschlussende 28 geschoben und an der Rohrwandung verstemmt. Der verbleibende Hohlraum wird mit dem Dämm- und Isoliermittel 53 aufgefüllt, wobei die Zündkabel 52 aus dem Behälter 25 herausgeführt werden. Der so gefüllte Behälter 25 wird nun am Füllende 29 gleichfalls verschlossen. Anschließend wird der verschlossene Sprengmittelbehälter 25 in den Aufnahmering 18 des Versorgungskopfes 11 geschoben und dort durch Reibschluss fixiert, wobei die Zündkabel 52 durch eine Bohrung in der Rückwand 19 des Versorgungskopfes 11 herausgeführt werden.The filling of the blasting agent container 25 is carried out as follows: First, one side of the container is closed. At the closure end 28 then a small amount of insulating and insulating material 54, such as sand, filled. Now the explosive 5 is introduced with the primer 51 in the container 25, pushed by means of a loading stick to the closure end 28 and caulked to the pipe wall. The remaining cavity is filled with the insulating and insulating 53, the ignition cable 52 are led out of the container 25. The thus filled container 25 is now closed at the filling end 29 as well. Subsequently, the closed explosives container 25 is pushed into the receiving ring 18 of the supply head 11 and fixed there by frictional engagement, wherein the ignition cable 52 are led out through a hole in the rear wall 19 of the supply head 11.

Der Versorgungskopf 11, das hintere Ende des Kühlbehälters 1, ist aus einem stabilen Material, beispielsweise Stahlguss gefertigt und kann deshalb auch für mehrere Sprengungen verwendet werden. Dazu ist es allerdings erforderlich, das zwischen dem Sprengmittel 5 und dem Versorgungskopf 11 ein Sicherheitsabstand von mindestens 50 mm eingehalten wird, worauf bei der Bemessung der Länge des Sprengmittelbehälters 25 und der eingefüllten Sprengmittelmenge zu achten ist.The supply head 11, the rear end of the cooling container 1, is made of a stable material, such as cast steel and therefore can be used for several blasts. For this purpose, however, it is necessary that a safety distance of at least 50 mm is maintained between the disintegrating means 5 and the supply head 11, which is to be taken into account in the dimensioning of the length of the disintegrating container 25 and of the charged disintegrant quantity.

Neben dem Kühlkopfaufnahmerohr 18 befinden sich mit größerem Durchmesser am Versorgungskopf 11 noch zwei weitere Wandungen, nämlich der Versorgungsstutzen 17, auf den das Innenrohr bzw. der Innenkühlmantel 27 des Kühlkopfes 10 und das Versorgungsgehäuse 13, auf das das Außenrohr bzw. das Kühlkopfgehäuse 23 aufgeschoben werden. Die Verbindung zwischen den Bauteilen erfolgt zweckmäßigerweise durch einen Clipsverschluss, durch Verschraubung oder mittels Rödeldrahtzwirbel (bei einem flexiblen Rohr).In addition to the cooling head receiving tube 18 are located with a larger diameter at the supply head 11, two more walls, namely the supply pipe 17, to which the inner tube or the inner cooling jacket 27 of the cooling head 10 and the supply housing 13, to which the outer tube or the cooling head housing 23 are pushed , The connection between the components is expediently carried out by a clip closure, by screwing or by means of twisted-wire twists (in the case of a flexible tube).

Vor dem Aufschieben des Außenrohrs bzw. des Kühlkopfgehäuses 23 wird zunächst zwischen dem Innenrohr bzw. dem Innenkühlmantel 27 und dem Sprengmittelbehälter 25 - benachbart dem Sprengmittel 5 - das granulatförmige Schüttgut 55 eingebracht, formfest mit einem Verpackungsmaterial 56, beispielsweise einer Kunststofffolie umhüllt.Before pushing on the outer tube or the cooling head housing 23, the granulated bulk material 55 is first introduced between the inner tube or the inner cooling jacket 27 and the explosives container 25 - adjacent to the disintegrating means 5 - wrapped in a dimensionally stable manner with a packaging material 56, for example a plastic film.

Den Abschluss der Vorbereitung bilden das Aufschieben des Kühlkopfgehäuses 23 auf das Versorgungsgehäuse 13 des Versorgungskopfes 11 und die Befestigung des fertig montierten Kühlbehälters 1 auf die Lanze 3. Dies geschieht durch Aufstecken oder Aufschrauben, wobei die Zündkabel 52 (oder eine nicht dargestellte nichtelektrische Schlauchverbindung zur Übertragung der eine Zündung auslösenden Stoßwellen) durch den Hohlraum der Lanze 3 zum hinteren Ende der Lanze 3 geführt werden und weiterhin durch Verbinden des Kühlmittelabflussstutzens 15 des Versorgungskopfes 11 mit der außen an der Lanze 3 angeordneten Ablaufleitung 31. Die erfindungsgemäße Sprengvorrichtung ist nun einsatzbereit. Sie kann nun jederzeit eingesetzt werden, wozu die aus der Lanze 3 bzw. Verschlussschraube 33 herausgeführten Zündkabel (Zündkanal) 52 an die Zündvorrichtung und die Kühlmittelzu- und -abläufe anzuschließen sind.The completion of the preparation is the postponement of the cooling head housing 23 on the supply housing 13 of the supply head 11 and the attachment of the fully assembled cooling tank 1 on the lance 3. This is done by plugging or screwing, the ignition cable 52 (or non-illustrated non-tubular hose connection for transmission the shock waves triggering an ignition) are guided through the cavity of the lance 3 to the rear end of the lance 3 and further by connecting the Kühlmittelabflussstutzens 15 of the supply head 11 with the outside of the lance 3 arranged discharge line 31. The blasting device according to the invention is now ready for use. It can now be used at any time, including the lead out of the lance 3 and screw plug 33 ignition cable (ignition channel) 52 are connected to the ignition device and the Kühlmittelzu- and -abläufe.

In den Figuren 1, 2 und 3 ist der Weg des Kühlmittels 4 in Form von entsprechend eingezeichneten Pfeilen dargestellt. Ausgehend von einer Kühlmittelzulaufvorrichtung, beispielsweise einer Pumpe (die Pumpe ist nicht dargestellt) gelangt das Kühlmittel über eine Kupplung 32 in die Lanze 3, strömt durch diese hindurch und gelangt über das konische Mundstück 34 der Lanze und der Kühlmittelzulauföffnung 12 in den Versorgungskopf 11. Von dort wird das Kühlmittel 4 zwischen den Innenkühlmantel 27 und den Sprengmittelbehälter 25 geführt, wobei es auch das granulatförmige Schüttgut 55 umströmt. Nach seinem Austritt aus dem Innenkühlmantel 27 wird das Kühlmittel 4 am hinteren Ende des Kühlkopfgehäuses 23 umgelenkt und strömt nun zwischen dem Innenkühlmantel 27 und dem Kühlkopfgehäuse 23 zurück zum Versorgungskopf 11, den es dort durch den Kühlmittelablauf 14 verlässt, um über den außen am Versorgungskopf 11 angeordneten Kühlmittelablaufstutzen 15, der flexiblen Kühlmittelablaufleitung 16 und der außen an der Lanze 3 angeordneten Kühlmittelablaufleitung 31 aus der heißen thermischen Anlage abgeführt zu werden.In Figures 1, 2 and 3, the path of the coolant 4 in the form of corresponding shown arrows. Starting from a coolant supply device, such as a pump (the pump is not shown), the coolant passes through a coupling 32 in the lance 3, flows through it and passes through the conical mouthpiece 34 of the lance and the coolant inlet opening 12 in the supply head 11. Von There, the coolant 4 is guided between the inner cooling jacket 27 and the explosives container 25, wherein it also flows around the granular bulk material 55. After emerging from the inner cooling jacket 27, the coolant 4 is deflected at the rear end of the cooling head housing 23 and now flows between the inner cooling jacket 27 and the cooling head housing 23 back to the supply head 11, where it leaves through the coolant outlet 14 to the outside of the supply head eleventh arranged coolant outlet pipe 15, the flexible coolant discharge line 16 and the outside of the lance 3 arranged coolant discharge line 31 to be discharged from the hot thermal plant.

Durch diesen stetigen Kühlmittelfluss wird das im Sprengmittelbehälter 25 befindliche Sprengmittel 5 intensiv und stetig gekühlt, so dass ein hinreichender Brandschutz des Sprengmittels 5 gegen eine vorzeitige Zerstörung durch Flamm- bzw. Strahlungshitze gegeben ist.As a result of this continuous flow of coolant, the explosive 5 located in the explosive container 25 is intensively and steadily cooled, so that adequate fire protection of the explosive 5 against premature destruction by flame or radiant heat is provided.

Nach Positionierung der Sprenglanze 3 bzw. des Kühlbehälters 1 und unmittelbar vor Auslösung der Sprengung wird zweckmäßigerweise der Kühlmittelzufluss gestoppt, um die zum Stand der Technik erläuterten Nachteile zu vermeiden. Das dann noch im Kühlkopf 10 befindliche Kühlmittel 4 vergast aufgrund der hohen Detonationsgeschwindigkeit.After positioning the blasting lance 3 or the cooling container 1 and immediately before triggering the blasting, the coolant flow is expediently stopped in order to avoid the disadvantages described in the prior art. The then still in the cooling head 10 located coolant 4 gasified due to the high detonation velocity.

Das dargestellte Ausführungsbeispiel stellt nur eine mögliche Vorrichtung zur Durchführung des erfindungsgemäßen Verfahren dar. Je nach der Art der thermischen Anlage, der zu zerstörenden Materialien und den örtlichen Gegebenheiten sind weitgehende Variationen möglich, beispielsweise im Hinblick auf die Dimensionierung von Kühlbehälter und Lanze, der Ausführung der verschiedenen Kupplungen und Zündkabeldurchführungen, Art und Menge von Sprengmittel und granulatförmigem Schüttgut, wenn die Merkmale des Hauptanspruchs dabei gewahrt bleiben.The illustrated embodiment represents only one possible device for carrying out the method according to the invention. Depending on the type of thermal system, the materials to be destroyed and the local conditions Extensive variations are possible, for example with regard to the dimensioning of the cooling tank and lance, the execution of the various couplings and Zündkabelddurchführungen, type and amount of disintegrant and granular bulk material, while maintaining the features of the main claim thereby.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
KühlbehälterCooler
33
Lanzelance
44
Kühlmittelcoolant
55
Sprengmittelexplosives
1010
Kühlkopfcool head
1111
Versorgungskopfsupply head
1212
KühlmittelzulauföffnungCoolant inflow opening
1313
Versorgungsgehäusesupply housing
1414
KühlmittelablaufCoolant flow
1515
KühlmittelablaufstutzenCoolant drain connection
1616
KühlmittelablaufleitungCoolant drain line
1717
Versorgungsstutzensupply socket
1818
KühlkopfaufnahmerohrCooling head receiving tube
1919
Rückwandrear wall
2020
Verbindungsmittelconnecting means
2121
Verschlussmittelclosure means
2323
KühlkopfgehäuseCooling head housing
2424
Abstandstegespacer webs
2525
SprengmittelbehälterBlasting material container
2626
Abstandstegespacer webs
2727
InnenkühlmantelInterior cooling jacket
2828
Ende SprengmittelbehälterEnd of explosives container
2929
Ende SprengmittelbehälterEnd of explosives container
3131
KühlmittelablaufleitungCoolant drain line
3232
Kupplungclutch
3333
VerschlussschraubeScrew
3434
Mundstück an LanzeMouthpiece on lance
5151
Zündkapseldetonator
5252
Zündkabelignition cable
5353
Dämm- und IsoliermittelInsulating and insulating materials
5454
Dämm- und IsoliermittelInsulating and insulating materials
5555
Schüttgutbulk
5656
Verpackungshüllewrapper
5757
Wirkrichtungeffective direction

Claims (14)

  1. A method for locally destroying compact materials such as, for example, clinker coatings, masonry remnants, etc., in thermal systems such as, for example, heat exchangers, industrial furnaces, firing systems or metallurgical melting pots with the aid of a blasting material (5) that is arranged on the front end of a lance (3) in a cooling vessel (1) through which a cooling medium flows, wherein said blasting material is moved into the vicinity of the material to be destroyed by holding and moving the rear end of the lance (1) through an opening of the thermal system and the blasting material is ignited at a freely selectable time by means of an ignition device, characterized in that the cooling medium (4) flows into the supply head (11) of a cooling vessel (1) realized in the form of a double pipe with a cooling head (10) and a supply head (11) via the lance (3), wherein the cooling medium is conveyed as far as the front end of the cooling head (10) through the inner pipe with the inner cooling jacket (27) such did it flows past the blasting material container (25) containing the blasting material (5), and wherein the cooling medium subsequently flows back to the supply head (11) between the inner cooling jacket (27) and the cooling head housing (23) that forms the outer pipe and is then transported out of the hot thermal system from the supply head.
  2. The method according to claim 1, characterized in that the pressure wave generated during the ignition of the blasting material (5) causes a granular bulk material (55) such as, for example, radiated marcasite arranged between the inner cooling jacket (27) of the cooling head (10) and the blasting material container (25)-adjacent to the blasting material (5)--to be shot at the material to be destroyed.
  3. The method according to claim 1 or 2, characterized in that the cooling medium (4) is transported to the supply head (11) through the hollow interior of the lance (3) and transported away from the supply head (11) through a cooling medium discharge line (31) arranged on the outside of the lance (3).
  4. The method according to at least one of claims 1 to 3, characterized in that the blasting medium (5) is filled into the front part of the tubular blasting material container (25) that features a damping and insulating medium (53, 54) on both pipe ends (28, 29) together with a detonator (51) provided with an ignition cable (52), wherein the blasting material container (25) is closed with simple means, for example, with an adhesive tape, and inserted into the inner cooling jacket (27) of the cooling head (10) after the free ends of the ignition cable (52) were led out of the blasting material container (25).
  5. The method according to claim 4, characterized in that the ignition cable (52) leads from the blasting material container (25) to an ignition device through the hollow space of the lance (3).
  6. The method according to claim 4 or 5, characterized in that the blasting material container (25) has such dimensions that a safety clearance of preferably at least 50 mm remains between the blasting material (5) and the rear end of the cooling vessel (1), namely the supply head (11), such that the supply head (11) can also be used for several blasts.
  7. The method according to claim 6, characterized in that the granular bulk material (55) is provided with a package cover (56) after the blasting material container (25) is inserted into the cooling vessel (1), wherein the bulk material is inserted into the inner cooling jacket (27) of the cooling vessel (1)-adjacent to the blasting material (5)--such that it is positioned next to the blasting material container (25) in the form of a packet.
  8. The method according to claim 7, characterized in that the cooling head housing (23) is pushed on the supply head (11) of the cooling vessel (1) and thusly seals the cooling vessel (1) after the bulk material packet (55, 56) was inserted into the inner cooling jacket (27) of the cooling vessel (1).
  9. The method according to at least one of claims 1 to 8, characterized in that the ignition device used consists of a commercially available non-electric detonator with conventional tube connections for transmitting the pressure waves triggering the ignition.
  10. A device for carrying out the method according to at least one of the preceding claims for locally destroying compact materials such as, for example, clinker coatings, masonry remnants, etc., in hot thermal systems such as, for example, heat exchangers, industrial furnaces, firing systems or metallurgical melting pots, consisting of a container-shaped cooling device the can be filled with a blasting material (5) and is arranged on the front end of a tubular lance (3), wherein a cooling medium (4) is conveyed into the cooling device for cooling the blasting material (5) through the lance and the ignition cables (52) for triggering the ignition extend through said lance, characterized in that
    a) the cooling vessel (1) is realized in a tubular fashion and consists of a supply head (11) and a cooling head (10), wherein the cooling head (10) is composed of two receptacles and an inner cooling jacket (27) that are arranged within one another and placed onto the supply head (1), an outer cooling head housing (23) and an inner cooling jacket (27), between which the cooling medium (4) is transported back to the lance (3) over the entire length of the cooling vessel (1);
    b) wherein a closed blasting material container (25) that is arranged in and radially spaced apart from an inner cooling jacket (27) of the cooling vessel (1), wherein the blasting material (5) contains a detonator (51) as well as a Damping and Insulating means (53, 54) such as, for example, sand, we in the radial and intermediates space formed by the inner cooling jacket (27) and the blasting material container (25) serves as an annular flow channel for the cooling medium (4);
    c) a granular bulk material (55) for boosting the blasting effect is clamped into the radial intermediate space between the inner cooling jacket (27) of the cooling vessel (1) and the blasting material container (25), namely such that it is wrapped into a packaging (56) in a dimensionally stable fashion and positioned adjacent to the blasting medium (5).
  11. The device according to claim 10, characterized in that the supply head (11) of the cooling vessel (1) features a cooling medium supply opening (12) that is connected to the hollow interior of the lance (3) and the cooling medium discharge connection (15) that is connected to a cooling medium discharge line (31) arranged and the outside of the lance.
  12. The device according to claim 11, characterized in that the rear end of the lance (3) is connected to a cooling medium supply by means of a coupling (32).
  13. The device according to at least one of claims 10 to 12, characterized in that the cooling vessel (1) is realized such that it can be attached or screwed on the lance (3).
  14. The device according to at least one of claims 10 to 13, characterized in that the blasting material container (25) and the cooling vessel pipes (23, 27) used consist of inexpensive goods such as, for example, cardboard tubes coated with plastic, tin pipes, tin cans or hoses that are impervious to the cooling medium and the ends of which are closed or can be closed with simple means.
EP02015038A 2001-07-09 2002-07-05 Method and apparatus for destroying locally compact materials in hot thermal installations Expired - Lifetime EP1275925B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10132517 2001-07-09
DE10132517A DE10132517A1 (en) 2001-07-09 2001-07-09 Method and device for local destruction of compact materials in hot thermal systems

Publications (2)

Publication Number Publication Date
EP1275925A1 EP1275925A1 (en) 2003-01-15
EP1275925B1 true EP1275925B1 (en) 2007-02-21

Family

ID=7690653

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02015038A Expired - Lifetime EP1275925B1 (en) 2001-07-09 2002-07-05 Method and apparatus for destroying locally compact materials in hot thermal installations

Country Status (5)

Country Link
EP (1) EP1275925B1 (en)
AT (1) ATE354774T1 (en)
DE (2) DE10132517A1 (en)
DK (1) DK1275925T3 (en)
ES (1) ES2282348T3 (en)

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WO2021240414A1 (en) 2020-05-28 2021-12-02 Bio Protect Group Srl Method and apparatus for hot or cold cleaning combustion slag by means of an explosive shock wave

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DE10336178A1 (en) * 2003-08-07 2005-03-03 Forster Industrie- Und Kesselreinigungsgesellschaft Mbh Arrangement for breaking up hot masses in flue pipes etc has hollow profiled sleeve with metal foils and explosive charge with ignition wire leading to detonator
DE10337299B4 (en) * 2003-08-14 2010-09-23 Gert Griesbach Device for loosening hot masses deposited in thermal installations by means of blasting
DE10360705A1 (en) 2003-12-19 2005-07-14 Inno Industrial Engineering Ltd. Method and device for cleaning contaminants in heat exchangers, waste heat boilers and combustion chambers
EP2548662A1 (en) 2011-07-22 2013-01-23 Online Cleaning B.V. Device for and method of cleaning installations online
CH705845A2 (en) * 2011-12-07 2013-06-14 Bang & Clean Gmbh With an explosive mixture auftreibbare, flexible container cover for an apparatus and method for removing deposits in containers by means of explosive technology.
DE202016008807U1 (en) 2015-12-30 2019-10-31 Conservator Tyche Beheer B.V. Cooled cleaning device
EP3770545B1 (en) 2019-07-22 2024-05-22 Conservator Tyche Beheer B.V. Device for and method of cleaning installations
FI129754B (en) * 2020-02-16 2022-08-15 Konetuuli Oy A device for online deslagging
EP3885686A1 (en) 2020-03-26 2021-09-29 Conservator Tyche Beheer B.V. Method of and charge for cleaning incinerator heat exchangers
DE102020003958A1 (en) 2020-07-01 2022-01-05 Volker Kruse Cooled cleaning system with a holding device for explosives and with a direction-changing element for the cooling medium
EP4160134A1 (en) 2021-09-30 2023-04-05 Conservator Tyche Beheer B.V. Device for and method of cleaning the internals of installations

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US5769034A (en) * 1997-01-17 1998-06-23 Zilka; Frank Device, system and method for on-line explosive deslagging

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WO2021240414A1 (en) 2020-05-28 2021-12-02 Bio Protect Group Srl Method and apparatus for hot or cold cleaning combustion slag by means of an explosive shock wave

Also Published As

Publication number Publication date
DE10132517A1 (en) 2003-01-30
EP1275925A1 (en) 2003-01-15
DE50209518D1 (en) 2007-04-05
ES2282348T3 (en) 2007-10-16
ATE354774T1 (en) 2007-03-15
DK1275925T3 (en) 2007-06-18

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