DE6600464U - FILLING TROLLEY FOR LOADING HORIZONTAL CHAMBER COOK OVEN - Google Patents

Description

Utility model auxiliary registration H 47 463 / 10a Obm File H 2-26

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Filling car

The invention relates to einon filling wagon for Charging horizontal canister coke ovens with coal, mix Look at the conical downward tapering charcoal filling funnels, where appropriate, the outlet opening of which is assigned a closure element and one in a Filling hole lowerable filling tube with the filling hole wall and a suction hood that can be lowered onto the furnace ceiling includes an annular flow channel for the fill gases which is connected to a fill gas suction and cleaning device can be connected, with a body approximately perpendicular to the coaxial to release the charcoal The outlet opening of the hopper is rotatably mounted.

When filling the Kokskaramern with such a filling car Difficulties can occur when sucking off the filling gases if the coal is due to its Kaftens the inner wall of the filling funnel or by bridging or clumping within the intended filling time is not completely discharged into the coking chamber. These difficulties can also be that the suction and cleaning device for the filling

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gases fresh air through one or more opposite the remaining filling funnels already emptied filling funnel and its lower filling tube opening into the ring-shaped one Suction channel sucks in, so that the suctioned filling gas volume is inevitably reduced and an explosive one Fresh air filling gas mixture can arise. Under USA circumstances it can also happen that the pressure is applied that accumulates in the gas collection room of the coke chamber FUllgaae becomes so large that some of the filling gases pass through the filling tube and the empty filling funnel escapes ”and pollutes the atmosphere.

The invention avoids the foregoing Kachteile for a filling car of the type mentioned above represent a significant improvement in that the rotatable body as known per se, on the lower Xndo one opposite the outlet opening of the filling funnel only slightly smaller diameter conveyor screw is formed, the diameter of which for The upper opening of the filling funnel is widened conically to a lesser extent than the filling funnel, wherein the angle of inclination of the helical surface of the screw in the sense of an at least approximately constant delivery rate t over the total length of the screw conveyor upwards ~) · Is increasingly reduced. This achieves that

the screw conveyor not only serves to loosen the coal and »remove bridges, but in addition, a real conveying effect achieved, such that the discharge of the coal within a certain Time can be made with negligibly small time tolerances. The specialist technology in the field of charging carts for coke ovens has evidently shied away from the use of a vertical and coaxial to step closer to the screw conveyor arranged in the hopper, since a pure conveyance with conventional

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Snails with their relatively low pitch = angle in view of the small diameter of the opening of the filling funnel did not appear possible. Internship Preliminary searches have shown that an optimal conveying effect or discharge effect is then achieved with the conveying screw if this has a diameter at the lower end that is only slightly smaller than that of the spout Opening <is3 funnel and its located on the top The cone angle widening the opening of the filling funnel is dimensioned smaller than the cone angle of the filling funnel. In this way, an upwardly widening »annular space is formed between the circumferential surface of the FÖrdorsetaneeke and 'the inner wall of the hopper. The pitch angle of the helical surfaces of the worm is increasingly reduced upwards in such a way that During the filling process, at least approximately the same amount of charcoal is continuously discharged or conveyed will.

When designing the screw conveyor, the 3ie Earth gravity acting on carbon charcoal is taken into account, whereby it is achieved that the screw conveyor the free The case of the loosely falling charcoal does not inhibit lumpy parts of the charcoal by moving in Discharge direction moved further and thereby loosened and beyond ui.tc ^ avoidance of bridging Charcoal adhering to the filling funnel wall also loosens and discharges. Box has been hundreds of attempts found that fill times did not vary by more than two to three seconds. A major advantage the device according to the invention consists in the fact that it is retrofitted in existing filling wagons can be.

The prior art only relates to loosening or loosening the coal, but not to actively conveying it out the coal from the funnel

related devices, such as pounding devices, harrows, or stirring devices.

It is also known to arrange two screw conveyors in a funnel coaxially to this, which are used for the constant Feeding rotating work with seed drills Liquids that were previously not capable of being pumped up, such as pastes, etc. to serve. The two snails of different designs should overlap in their area of action. Apart from the different tasks, according to the invention, only a single conveyor

/ ^ snail provided, which is not continuous, but rather certain

suddenly measured several tons of charcoal inside a few seconds from the funnel-shaped container into the furnace chamber. It was found that the conical design of a »snail, allowed in a cone angle about that of the funnel dep-Füllbehälters corresponds, is not desired, rather an optimal «effect is achieved when the cone angle of the Auger smaller than that of the funnel of the FÜ11-Bohalteror is sized. In contrast to the known device, the pitch angle increases Conveying surfaces of the screw according to the invention towards the lower end in such a way that the free fall of the coal through

v ^ the discharge opening is not obstructed. At a

Transfer of the known device to the purpose according to the invention would make the funnel within the shortest possible time Time can be destroyed without a discharge Jer filler carbon in the required time of about one hundred seconds it is possible. A suggestion within the meaning of the invention, the use of a screw conveyor with an opposite the cone angle of the funnel smaller angle to op = Providing timely discharge and promotion of the charcoal from the container, could therefore from the known Device does not go out.

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Also known is a storage container for bulk material, in the funnel a vertical screw is built, which conveys upwards and thereby the task should meet to loosen the bulk material, but not to challenge the material from the funnel.

In a further development of the invention it is also provided that stirring rods over the length and / or the circumference the screw conveyor are arranged distributed. The rods can with their opposite the axis of the Conveyor screw ends protruding radially outward in the vicinity of the inner wall of the hopper are sufficient. The arrangement of the stirring rods ensures an optimal discharge and conveying effect even under difficult conditions Operating conditions ensured.

An exemplary embodiment of the invention is illustrated in the drawings. Show it:

Fig. 1 is a longitudinal section through a coal funnel a charging car for charging horizontal chamber coke ovens with coal,

Fig. 2 another embodiment in longitudinal section] in a schematic representation. |

In the drawing, a hopper 1 is not a f

illustrated filling car for loading horizontal ■

Chamber coke ovens with coal shown "which is conical S

tapers downwards and into a cylindrical outlet |

opening 2 opens out. This outlet opening is a as j Slider-trained locking element 3 assigned.

One into a filling hole H of a chamber of the horizontal chamber I

Coke oven's lowerable filling pipe 5 closes with the filling * hole wall and a suction hood 7 which can be lowered onto the furnace roof 6, an annular flow channel 8 for

for the filling gases, which is connected to a filling gas suction and cleaning device, not shown, via a Suction nozzle 9 can be connected.

According to the invention, a conveying element for releasing and / or discharging the is within the hopper 1 Coal arranged rotatably about the main axis formed by a shaft 10.

Bas the conveying element extends approximately perpendicularly coaxially to the outlet opening 2 of the hopper and is used as a screw conveyor 11 (Fig. 1) or 12 (Fig. 2). In both embodiments, the lower end of the screw conveyor one opposite the outlet opening 2 of the hopper is only slightly smaller in diameter.

According to FIG. 1, the diameter of the screw conveyor is dimensioned to be the same over its entire length. Stir bars 13 are about the length and circumference of the screw conveyor arranged in a distributed manner and with their radially outwardly protruding freely relative to the axis of the screw conveyor Ends near the conical inner wall of the hopper.

According to FIG. 2, the screw conveyor 12 is towards the upper opening of the hopper widened conically in diameter. The cone angle corresponds to the screw conveyor on the left in the drawing that of the hopper, while on the right in the drawing Since © the cone angle of the screw conveyor opposite the one of the hopper is selected to be smaller. The apex of the cone angles of the screw conveyor and the hopper are offset from one another in the axial direction of the same, in such a way that between the screw conveyor 12 and the filling funnel wall an annular space 14 is formed. The angle of inclination of the helical surfaces of the conveyor

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screw 12 is in the sense of a roughly constant
Delivery rate over the total length of the screw conveyor
increasingly decreased upwards.

In both embodiments, the screw surfaces of the screw conveyors 11 and 12 are on the vertical cylindrical shaft 10 attached.

The screw conveyors are connected by means of a motor, not shown, via a shaft 15 and a preferably steplessly switchable reduction gear 16 as well
Bevel gear 17 can be driven, <pLas a bearing of the worm in the middle upper area of the coal hopper
forms, the other pivot bearing 18 in the lower area
of the hopper is provided.

The Schieoer 3 is via a connecting strap 19 and
a lever 20 to a hydraulic lift cylinder 21
connected.

The suction hood 7 is telescopically displaceable with respect to its upper part la in the area of a sand cup 22, which prevents a gas-tight closure of the annular flow channel 8 and thus an escape of the filling gases. "

It can be seen from both figures that a steady flow of cabbage is achieved when the screw conveyors are in operation and the sticking of coal to the conical inner wall of the hopper is avoided.

Claims (2)

«■ ■ ι · β · · • · · t Hardening, Kuhn & Co. Maschinenfabrik GmbH, Düsseldorf My files: H 2-26- Protection claims ¹ 1, charging trolley for loading from horizontal chamber Coke ovens old coal, conical downwards ; Tapering charcoal filling funnels, whereby 'If necessary, their outlet opening has a closure * element assigned 1st and one in a fill hole 1 lowerable downpipe with the filling hole wall and i '- an extraction hood that can be lowered onto the furnace roof ^: ■ ·. an annular flow channel for the Püll- includes gases, which is fed to a filling gas suction ) -. and cleaning device can be connected "where- • for loosening the charcoal a body about perpendicular · «. right coaxial Eur outlet opening of the filling line ters rotatably mounted 1st, thereby marked Not that the rotatable body is known per se te, at the lower end one opposite the drainage opening (2) of the hopper Cl) only slightly small • ■ conveyor screw (12) with a larger diameter made of · is formed, the diameter of which is widened conically to a lesser extent towards the upper opening of the filling funnel than the filling funnel. 2 - at the helix angle of the screw surfaces
the snail in the sense of at least about
constant flow rate over the Gooomfcliinßo of the Fürdorochnecke sun taking upwards
is decreased. 2. Filler car according to Anspruci 1, thereby net that Rührstäbö (13) over the lungs and / or the scope of the conveying GChneclce arranged distributed bind. ΓΛ .3 · charging car according to claim 2 _t characterized in that the rods (13) with their relative to the axis of the screw conveyor extend radially outwardly projecting free ends in the cows of the Xnnenwandung ö.oa hopper.