DE638933C - Lock device for vessel conveyor systems in weather shafts - Google Patents

Description

Lock device for vessel conveyor systems in weather shafts Shaft hoisting systems in extending weather pits, it is known, the shaft hoisting means to pass through lock boxes or to leave the conveying means in the negative pressure space and only the conveyed goods, d. H. the trolleys or in the case of container conveyor systems the conveyed goods, through chambers provided with closure members, into the outside air. In a known arrangement, both the locking gates are inevitably with flaps connected to them alternately closed weathertight during delivery: .3sen, so that no short circuit can occur in the weather management.

In another known device there are also lock boxes intended. At these lock boxes there is a bunker into which the from the The conveyed material flowing out flows through the conveying vessel. The discharge opening of the bunker forms the weatherproof closure of the shaft against the outside air. At the shaft conveyor Both a blind base and a blind cover are provided. While ordinary the bunker seal closes the shaft from the outside air, if there is presence of the receptacle at the unloading point is the one between the blind bottom and the blind cover Section of the lock chamber closed off from the rest of the shaft, so that the bunker closure can be opened without causing a short circuit between the shaft and the Outside air is created. Since an airtight seal of the bunker is only possible through practically cannot achieve the coal because of the usual high fan depression the material to be conveyed must be withdrawn from the bunker during the pause in conveyance, because the bunker opening must be closed while the conveyor is moving. this I> signifies a considerable disadvantage, since the device, which the conveyed good withdraws from the discharge opening, is often not so efficient that it the can accommodate the entire payload in what is usually only a short break in production. In the end the construction height is also determined by the arrangement of blind floors on the shaft conveyor and considerably increases the dead load of the vessel.

If the funding is overdrawn, it can also happen that the blind floor leaves the lock box and in this way a connection between the duct and the outside air. When vascular stimulation comes across the blind body when exaggerating against the opening of the vascular occlusions or to tilt of the bucket required roller guide curves, whereby these or the subfloor are destroyed.

In other known arrangements SQIl @ Q the conveyed material itself Termination against = -`. above the outside air. This is where the exhaust opening closed by pendulum flaps as soon as the conveyed material has left the sluice. A secure closure by the conveyed goods can be, especially in the case of large-storey conveyed goods, however not achieve.

According to the invention, the disadvantages of the known arrangements using a hopper lock and - a shaft lock, z. B. a manhole cover, thereby avoided that the bunker lock and the shaft lock are controllable as a function of one another.

With this arrangement, the shaft conveyor opens when it enters into the - emptying point the shaft lock, after at the latest before lifting the The cover of the discharge opening has been closed. -When going down the conveyor sets the manhole cover down again on its supports. Now the closure of the discharge opening can be opened to remove the payload.

In the arrangement according to the invention, a device can be provided that the * closure of the discharge opening automatically depending on the approach of the shaft conveyor leads to the shut-off position. A locking device for the closure of the discharge opening ensures that the closure is closed for so long remains when the manhole cover is lifted off. The locking can be dependent be controlled by the position of the manhole cover itself or by the position be made dependent on the shaft funding.

It is possible to have two manhole covers for two-section conveyor systems to be provided, each of which is assigned to a funding means while for inclusion the payload is preferably provided only one space that of both shaft conveying means is fed from.

The drawing gives an embodiment for the invention, and although Fig. i shows a vertical section through the unloading system of a shaft container conveyor and Fig. a is a perpendicular section at right angles to it.

The headframe s stands above the shaft i; both are .by one Cladding 3 sealed off from the outside air. Below the unloading point a manhole cover 4 rests on brackets 5 in each conveying strand. The shaft funding 6 empty their contents into a receiving pocket 7 common to both strands, which is also @ .i airtight from the outside air -; is, and a closing slide 8 owns. The conveyed goods are deducted with a deduction -: @ i # gan 9 (tape or dg1.).

The discharge takes place as follows: The conveying vessel 6 lifts its shaft cover q when entering the unloading point. from the consoles 5 so that it is in position 4. ' comes. If the contents of the vessel are in the receiving pocket, whose slide 8 is closed, emptied, so the vessel 6 moves down and lays the manhole cover 4. on the consoles 5 again. Then the slide 8 is opened and the conveyed material is withdrawn by the withdrawal device 9 during the travel time of the vessel 6. Shortly before the other vessel lifts its manhole cover, the slide 8 is again closed. Instead of the manhole cover, a flap door can be used, which during the travel of the vessel in the shaft is closed and of the vessel on its arrival is opened indirectly or immediately and is closed again when it leaves.

The device according to the invention has the advantage of a very good sealing ability lind lower - weather losses. Even with double-strand conveyor systems, only a single closing slide is required at the discharge opening. The shaft funding can be held very easily. The load on the rope by the weight of the manhole cover only occurs when the load of the upper rope is not effective; Therefore, this type of lock device is particularly suitable for subsidies without a lower rope. Operation with manhole covers is also advantageous in the case of tilting buckets, in which, as is well known, undesired rope relief occurs by supporting part of the bucket weight on the tilting curves, since their weight eliminates the rope relief and makes starting easier. Ultimately, there is no need for lock boxes and blind bottoms, which require constant monitoring to keep them tight and fit exactly into one another.

Claims (1)

PATENT CLAIMS: i. Lock device for container conveyor systems in Weather shafts, characterized in that the bunker lock and the shaft lock, z. B. the .Schachtdeckel, are controllable as a function of each other. a. Facility according to claim i, characterized in that the hopper closure in Can be controlled depending on the approach of the vessel in the shut-off position. 3. Device according to claim 2, characterized by a locking device @ for the bunker closure, dij depending on the position of the manhole cover is controllable. ¢. Device according to claim i or a, characterized in that that the locking device for the hopper lock depends on the position of the vessel is dependent. 5. Device according to your claim i .Or the following for two-way Funding - '=. Institutions, characterized by the `@ initialization of two each manhole covers assigned to a vessel and a single one of the two vessels loaded bunkers.