DE3407487C1

DE3407487C1 - Coke-quenching tower

Info

Publication number: DE3407487C1
Application number: DE19843407487
Authority: DE
Inventors: Reinhold Dr. Beckmann; Horst Dr. 4000 Düsseldorf Bonnekamp; Gerhard 4100 Duisburg Friebe; Günther 4330 Mülheim Hof
Original assignee: Mannesmann AG
Current assignee: Vodafone GmbH
Priority date: 1984-02-27
Filing date: 1984-02-27
Publication date: 1985-06-05

Abstract

The invention relates to a coke-quenching tower, composed of a trapping hood, arranged above the quenching car containing the incandescent coke, for the heated quenching vapours resulting from the quenching of the coke and a shaft connected to the trapping hood displaced to the side. In order to design a coke-quenching tower of the type described in Claim 1 in such a manner that a purification of the vapours is carried out as early as in the bottom region of the shaft and at the same time a uniform velocity profile of the ascending vapours is brought about and the efficiency of the treatment measures is improved at low pressure drops, it is proposed that the cover (3) of the quenching hood (1) is formed in a dome-like manner and the apex (4) of the dome is arranged off-centre to the quenching hood (1) and to the shaft (2), vertical baffles and guides (6) for the quenching vapours are arranged in the bottom region (5) of the shaft (2) and the lower edge (7) of the dome (3) at the transition to the shaft (2) lies beneath a hypothetical plane which is formed by the upper edges (6') of the baffles and guides (6). <IMAGE>

Description

F i g. 2 zeigt den Abschnitt des Kühlturmes mit dem Übergang von der Löschhaube 1 zum Schacht 2. Der Übersichtlichkeit wegen ist die Bedüsungseinrichtung 10 für den im Löschwagen befindlichen Koks weggelassen. Gemäß der Erfindung ist die Decke 3 der Löschhaube 1 gewölbeartig ausgebildet. Der Scheitel 4 der gewölbten Decke 3 ist zur Achse 12 der Haube außermittig zum Schacht 2 hin angeordnet. An dieser Seite ist die Unterkante 7 der Decke 3 soweit heruntergezogen, daß sie innerhalb des Höhenbereichs der im Schacht 2 vertikal angeordneten Prall- und Leitelemente 6 liegt. Die Ausbildung und Anordnung der Decke 3 bewirkt, daß die aufsteigenden Schwaden wirkungsvoll in den Bereich der Prall- und Leitelemente 6 gelenkt werden. Die gemäß F i g. 3 im Bodenbereich des Schachtes 2 vertikal stehenden Prall- und Leitelemente 6 sind winklig ausgebildet und derart angeordnet, daß sie den Schwaden eine ausreichende Prallfläche zur Abscheidung der Staubpartikel entgegensetzen, gleichzeitig jedoch die Strömungsrichtung der Schwaden derart umlenken, daß die im Schacht 2 aufsteigenden Schwaden ein über den Schachtquerschnitt annähernd gleichmäßiges Geschwindigkeitsprofil aufweisen. F i g. 2 shows the section of the cooling tower with the transition from the extinguishing hood 1 to the shaft 2. For the sake of clarity, the spraying device is 10 omitted for the coke in the fire truck. According to the invention is the ceiling 3 of the extinguishing hood 1 is designed in the shape of a vault. The vertex 4 of the arched Ceiling 3 is arranged off-center towards shaft 2 in relation to axis 12 of the hood. At this side, the lower edge 7 of the ceiling 3 is pulled down so far that it is within the height range of the baffle and guide elements arranged vertically in the shaft 2 6 lies. The design and arrangement of the ceiling 3 causes the ascending Swaths are effectively directed into the area of the baffle and guide elements 6. According to FIG. 3 in the bottom area of the shaft 2 vertically standing impact and Guide elements 6 are angled and arranged such that they the swath provide a sufficient baffle to separate the dust particles, at the same time, however, deflect the direction of flow of the steam so that the The swath rising up in shaft 2 has an approximately uniform pattern across the shaft cross-section Have speed profile.

Claims

Claim: coke quenching tower, consisting of one above one Extinguishing carts containing glowing coke are arranged in the form of a vault Catching hood for the heated extinguishing steam that occurs when the coke is extinguished and a laterally offset shaft adjoining the collecting hood, with in the bottom area vertical baffle and guide elements arranged in the shaft for the extinguishing swaths, characterized in that the apex (4) of the vault is eccentric to the extinguishing hood (1) and the shaft (2) is arranged and that the lower edge (7) of the vault (3) in the transition to the shaft (2) is below an imaginary level that goes through the upper edges (6 ') of the impact and guide elements (6) is formed.

The invention relates to a coke quenching tower for quenching of glowing coke.

It is known that the glowing coke ejected from the coke oven to be collected in a car and placed under an extinguishing hood for cooling travel.

A shaft is attached to the extinguishing hood through which the evacuated from the water cooling. It is also known to arrange the shaft offset to the side opposite the extinguishing hood. In the upper part of the manhole can be used for further treatment of the plume to remove any entrained material Dust.

In modern plants, depending on the chamber size, the coke ovens up to 40 t coke picked up by a fire engine. Since the deletion process is to avoid Loss on ignition and must take place quickly to achieve low water contents large amounts of extinguishing plumes for a short time.

In the case of a coke quenching tower with a staggered arrangement opposite the quenching hood Manholes occur through the deflection of the steam and the turbulence caused by it Difficulty cleaning the swaths in the shaft.

Such an extinguishing tower is known from DD 60 736. That there applied concept assumes that the efficiency of the separation of solid Particles in the windrows with the flow velocity of the windrows increases, whereby the inertia of the solids is exploited. This deposit produced in this way is nonetheless not as complete as aimed, so that additional coke quenching tower Spray nozzles in the chimney must remove residual contamination.

The aim is to create an extinguishing tower shaft with a cross-section designed in this way is that the speed of the erasure plumes flowing out is slow.

The object of the invention is to provide a coke quenching tower as claimed 1 specified genus in such a way that already in the bottom area of the shaft the swaths are cleaned and, at the same time, a uniform speed profile caused by the rising plumes and the effectiveness with low pressure losses the treatment measures are improved.

The transition from the fire truck profile to the required cross-section the extinguishing tower shaft must be designed so that with low flow resistances the entire extinguishing swath can be routed uniformly into the shaft.

The object is achieved by in the characterizing part of claim 1 specified invention.

An embodiment is to the inventive design of a Coke extinguishing tower explained with reference to the drawings. It shows F i g. 1 a coke quenching tower in side view, F i g. 2 a part of the coke quenching tower with the inventive Devices in longitudinal section along the line A-A of FIGS. 3 and F i g. 3 a section according to the line B-B of FIG. 2 in plan view.

F i g. 1 shows an extinguishing tower with a laterally offset one Shaft 2. The extinguishing car 8 stands under the extinguishing hood 1 and out of the elevated tanks 9, water is sprayed onto the glowing coke via the nozzle device 10. The resulting steam plumes, laden with small coke particles, escape the fire truck into the fire hood. The extinguishing hood is designed so that the extinguishing plumes enter the lower part of the extinguishing chimney directed.

There are vertical guide and impact elements in the floor area of the extinguishing chimney 6 built in, on which the coarse coke particles are separated and the steam so distributed over the cross section of the shaft that they have a uniform Have speed profile. At the head of the shaft fixtures 11 are provided, which separate the coke dust that has been entrained up to this point. This is all the more complete, the more uniform the speed profile of the extinguishing swaths.