DE688133C - Sliding plate cooler - Google Patents

Description

Slide plate cooler In most lignite briquette factories, im Cold store, which is usually equipped with sliding plate coolers, that of one The conveying means running over the cooling strip are charged with hot dry charcoal are arranged behind the cooling elements, a collecting space that the occurring Compensate for differences between the amount of dry goods and the requirements of the briquette factory target. This collecting space is known to have disadvantages: i. With high filling in the collecting space the carbon masses can heat up so much during prolonged storage that inflammation or even deflagrations occur, which is why the use of collecting spaces is restrictive Is subject to the provisions of the mining authority.

a. Even with a low filling, the 'coal is poorly cooled.

3. The coal can only. evaporate in the upper layer, as one effective ventilation is difficult or impossible.

q .. Due to strong dust swirling up during filling, the collecting area poor traffic and being observed, which is particularly important when there is a risk of fire.

5. When the weather is cool, condensation forms on the walls . the briquette quality is severely impaired.

6. When emptying, segregation of the dust often occurs Coal one. Because of these evils one tries to use the collecting area to use little or not at all. But you have to accept that the last cooling elements or part of the metal sheets in them. Or less often run empty. When reloading the empty elements and empty sliding plates Experience has shown that a very unpleasant swirl of dust occurs in the actual cold store , which can give rise to deflagrations. Another disadvantage is that hot Coal passes through the cooling elements too quickly and without sufficient cooling and re-evaporation mixes with the rest of the briquetting. This has an adverse effect on the texture the briquettes and must be avoided with careful briquetting.

According to the invention, these disadvantages are overcome by the one described below Design largely canceled. Instead of the collecting space and the last cooling strips with fixed sheets, those with a drop-inhibiting effect are installed. Here several sliding plates are movably arranged, whereby it is not necessary that they have the same shape as the usual metal sheets. In the simplest case this is the case a movable one in one row of the sheets lying one on top of the other in the other row opposite, in such a way that in the rest position .the movable one rests against the stationary sheet. If coal is missing, the movable sheet leans against the built-in. Only when a certain amount of coal is on the moving sheet has accumulated, the contact pressure is due to the weight of the coal overcome, so that the movable sheet folds back and the dry goods the way to slide on, but at most to the next movable sheet. This, too, remains closed until the weight of the incoming coal Opening causes. In the manner described it is achieved that the case of Coal is interrupted.

The mobility of the sheets can be achieved in different ways be e.g. B. the sheets can be rotated about a pivot point or in a lateral direction be designed to be displaceable.

The movement of the metal sheets can, as described, be caused by the weight of the on top of the dry goods. This provides the desired drop resistance reached and made a dust swirl impossible. Depending on the center of gravity of the rotating plates, which can be achieved by arranging the pivot point or by attaching a Weight on a lever acting in the pivot point or otherwise influenced can be, or depending on the size of the resistance to the movement of the movable Sheets, e.g. B. by spring force, can be opposed, each A sheet metal to open the amount of refrigerated goods and thus' the degree of fall resistance Adjust largely to the desired extent.

In any case, however, the cooling elements have run empty when they are re-applied with dry goods, the throughput time is just as long as the time that is necessary to move the sheets one after the other due to the weight of the incoming refrigerated goods to operate. It follows from this that when reloading with larger quantities the Throughput time shorter, with weak or interrupted reloading, the throughput time longer than the necessary and operationally desired cooling time and that thus goods that are too hot or too cooled are obtained. For a wide range of cooling purposes may that be enough. But should, as it z. B. essential for coal that is difficult to briquette is, a certain, always the same cooling time with a corresponding cooling effect and re-evaporation are adhered to, it is also necessary to ensure the mobility of the metal sheets compulsorily independent of the actuation due to the weight of the refrigerated goods on top to influence in certain time intervals. This can be achieved in a number of ways be e.g. B. in that all movable sheets of a cooling element by a Circulating chain with drivers, by vertical rods with levers or by a other mechanical equipment is moved or its movement is inhibited.

It is already known that in a cooling element a number of superimposed Cooling plates relative to the other row is inevitably moved. This movement however, only has the purpose of clogging the cooling elements with woody components of lignite and the formation of flue dust that occurs after its removal. The movement of the metal sheets against each other is therefore only slight. A closing the way for the refrigerated goods is not intended and even with partial filling of the cooling element is not possible, so that the cooling elements and when they are refilled, a dust swirl can occur.

On the drawing are different embodiments of the new Slide plate cooler shown, namely Fig. I show a slide plate cooler with movable metal sheets that move horizontally under the weight of the dry material Axis can turn, ' Fig. 2 shows a similar cooler in which the Sheets can be moved laterally, Fig. 3 with the cooler shown in Fig. I a device for the positive opening of the movable metal sheets.

Fig.q. shows a similar device with a different drive of the movable plates, Fig. 5 a sliding plate cooler, in which the movable plates inevitably can be pressed against the fixed.

The movable sheets are each extended by one and one dashed lines to indicate the end positions.

In the embodiment according to Fig. I, the movable sheets a are rotatably mounted about horizontal axes b. The shape and weight of the metal sheets cause them to automatically place themselves against the fixed metal sheets p arranged opposite them, in such a way that they prevent the material to be dried from sliding down until the amount of material to be dried has reached a certain weight. In order to regulate the closing pressure, levers e, which are loaded by the adjustable weights d, can also be arranged on the horizontal axes b. A lever is shown on one movable sheet, but can of course be placed on each sheet.

The sliding plates are in the sliding plate cooler according to Fig. 2 standing under the influence of a spring force or the like. The springs are not shown, to keep the illustration simple.

In the embodiment of Fig. 3 is a revolving chain f provided, which are attached with drivers g under the at the pivot points of the sheets Lever h grabs and by lifting the same opens the sheets, whereupon this after The driver slides past either into the closed position due to its own weight fall back or when exposed to a more or less large amount of refrigerated goods Remain in the open position. The drivers can be arranged in such a way that that two movable sheets located one above the other .not at the same time be opened.

The movement of the lever h can also be carried out in the same way as described above, but according to Fig. Q. by means of two rods i and k which are provided with drivers and which go up and down alternately. As shown in Fig. 5, two similarly equipped and moving rods Z and nz can temporarily grip with their drivers n under lever o, which are attached to the pivot points of the sheets as described above, but on the opposite side and which thus hold the sheets in question in their closed position, the levers being arranged in such a way that they are not grasped by the drivers n when the sheet is sufficiently acted upon and thus opened.

The actuation of the metal sheets causes an opening from time to time (Fig. 3 and d.), Which results in too long a cycle time, or it causes a temporary one Keeping the metal sheets closed (Fig. 5), which avoids too short a throughput time will. By attaching one or the other device or both together and by adjusting the rhythm of movement of the actuators, which too may be carried out in a different way than shown in the figures thus any desired cooling effect regardless of the amount of refrigerated goods can be achieved.

The movement of the movable metal sheets can also be carried out using similar devices be influenced in the same way, e.g. B. the actuators be able to make lateral movements.

There is a wide variety of options for the number and type of arrangement of the sheets Options. You can only on one side, you can also on both sides of the Cooling strips can be attached, with any number of solid sheets alternately or one after the other. Rotatable and movable metal sheets can also be used be attached to a cooling strip.

The various devices can also be used for purposes other than are used for cooling briquetting charcoal; they are suitable at all for any refrigerated goods passing through a sliding plate cooler.

Claims (7)

PATENT CLAIMS: i. Sliding plate cooler with movable sliding plates, in particular for cooling or drying briquetting, characterized in that that the sliding plates are designed to block the passage of the goods. 2. Slide plate cooler according to claim i, characterized in that .the movable sliding plates are designed in this way are that they are opened by the weight of the dry goods retained by them will. 3. sliding plate cooler according to claim i or 2, characterized in that one movable sliding plate each arranged opposite a stationary sliding plate in this way is that if there is insufficient supply of dry material, the movable sliding plates are activated the fixed come to rest and block the passage. ..1.. Sliding plate cooler according to claim z or 2, characterized in that the movable Sliding plates are rotatable about an axis. Sliding plate cooler according to claim x or 2, characterized in that the movable sliding plates are arranged to be laterally displaceable are. 6. sliding plate cooler according to claim x, characterized by devices that the sliding plates open at certain time intervals. 7. sliding plate cooler according to claim x, characterized by devices that the sliding plates at certain time intervals hold in their locked position for a certain period of time.