DE19924556A1 - Ramming unit, for compacting coal for a coke oven, has combined lifting and holding camshaft disks associated with an oscillating lever pair for adjusting the cam seating force on rams - Google Patents

Abstract

A ramming unit, comprising combined lifting and holding camshaft disks (15) associated with an oscillating lever pair (16, 17) for adjusting the cam seating force on rams (2), is new. A ramming unit comprises camshafts (5) which extend at both sides of rams (2), distributed over the length of the ramming die and having friction coatings (4), and which are provided with a central drive (9) and contra-rotating lifting disks having projecting lifting cams (7) for pressing on the friction coatings (4) and having recessed portions. The lifting disks (6) are designed as combined lifting and holding disks (15) and are associated with an oscillating lever pair (16, 17) which allows adjustment of differential forced seating of both the lifting cams and the recessed portions. An Independent claim is also included for coal cake production using the above device.

Description

The invention relates to a ramming device for producing a Ver suitable, compacted coal cake with several, over the length of the kokung Ramming molds arranged with ramming rods with friction linings and ver running camshaft shafts that run in opposite directions via a central drive erected lifting discs with their protruding lifting cams on the friction the tamping rods were pressed on and with a recessed part on them are cited. The invention also relates to a method for producing a Cabbage cake with the help of up and down moving ramming sticks, whereby by driven lifting disks via eccentrically arranged lifting cams recessed causing a fall.

Such ramming devices are used where they are available Standing coal must be compressed before it is brought into the coke oven. For this serve corresponding ramming forms, in which the fine-grained coking coal is first inserted fills and at the same time compacted using tamper bars that can be moved up and down is that there is a total coal cake that follows from the ramming mold can be pushed out into the coke oven. For this purpose, the ramming mold is tamper rods assigned distributed over the length that moves up and down over lifting disks be driven by camshaft shafts. The lifting discs are with stroke cam and recessed parts equipped so that when turning the lifting plate ben and contact between the lifting cam and the tamper rod raised and at Further turning the contact is eliminated, so that the tamping rods due to their own nature important fall down and compress the coal accordingly. Appropriate Ramming devices are known from DE-OS 29 14 918 and DE-OS 31 25 840, whereby the tamper rods are raised by lifting disks that pass through the divided or split camshaft shafts and driven by a drive motor become. A disadvantage of these known ramming devices is that for Lift and separate drive means for fixing in the upper end position are needed. These also serve as securing end stops as well  the lifting cams on the camshaft shafts also frequently overload the Friction linings, so that they have to be replaced relatively quickly. The the effort required for this is considerable, especially since the entire ramming device must be shut down. Another disadvantage is that it ultimately depends on the skill the coking plant depends, like the pressure of the lifting cams and the locking device direction is taken, d. H. so how high the tamper rod or the Reibbe was charged. Adjusting when difficulties arise is still problematic shear.

The invention is therefore based on the object of a ramming device create, in which the ramming operation and the lifting and locking operation the respective Conditions and this can be adjusted as automatically as possible.

The object is achieved according to the invention in that the lifting disks designed as a combined lifting and holding discs and one pair of rockers each are assigned to a differentiated non-positive system of both the lifting cams how the recessed parts of the lifting and holding disks can be adjusted in a yielding manner.

With the help of such a ramming device, it is possible to use the same Lifting and holding disks both ramming by lifting and dropping the Perform ramming rods, as well as after stomping Lift the tamper rods into the locking position and lock them there so that they can safely remain there until the next pounding process. This is through the Lifting and holding discs are reached, which are assigned to a pair of rockers, via the they are brought to the friction lining of the tamper rods in a friction-locked system can or to the differentiated system, so that the ramming operation with these Lifting and holding disks can be carried out. The pairs of wings are so on ordered that they result in the shape of a pair of pliers that meet the needs is compressed accordingly, so that the lifting and holding disks into the diffe brought and safe non-positive system and can be kept there nen. The pairs of rockers with the lifting and holding disks can be targeted by ent speaking loading of the "pliers" to changing circumstances automatically  be adjusted so that the tamper rods and even locking is ensured. The lifting height of the tamper bars is constant during the ramming process and that when the ramming rods fall The potential energy released is compared within the entire pound cake moderate, so that a tamped cake advantageous in terms of stability and thus a good coke quality is always guaranteed. All tamper bars are over one and actuated the same drive, so that the manufacturing costs are advantageously kept low can be. Small, compact work modules can be manufactured and used are, which is further pointed out later. This allows inexpensive parts are used and replaced if necessary. Particularly advantageous is the reduction of downtimes because they correspond to the respective circumstances de Contact pressures are used and therefore a correspondingly low one Load on the friction linings of the tamper bars. By eliminating the previously necessary safety devices, the friction linings remain less loaded and moreover the safety gear is now integrated in the lifting and holding disks, so that too less mechanics is needed.

An expedient development of the invention provides that the swing pair of pliers and a triangle of force is formed, the side legs kel are connected to each other via an energy store. About this energy store the necessary auxiliary forces are generated, such an energy store automa can be equipped and adjusted so that the one mentioned earlier advantageous equalization of the different operations when tamping Coal cake is reached.

A structure that is advantageously simple and safe in terms of operation memory is the one in which the energy store connecting the side legs as double-acting hydraulic cylinder is formed. This hydraulic cylinder is about Appropriate equipment addressed so that it corresponds to the respective operating modes correspondingly provides auxiliary force, this auxiliary force depending on the respective condition the tamper rod and the other parts is or can be adjusted.  

According to these different operating modes, it can be set as a dop pelt-acting hydraulic cylinder trained energy storage when it has a pressure control valve is adjustable to ramming operating and locking pressure. This Pressure control valve can then, as explained further below, also be set and are regulated that the different operating phases and the special areas the individual components are taken into account. This is particularly possible Lich when the pressure control valve is connected between the cylinder surface and the return line is and on 3/2 way seat valve with unlockable check valve, a 2/2 way seat valve with pressure accumulator, a 2/2 way seat valve with pressure control valve and another 2/2 way seat valve. So that the tamper rod can both in the end position ramped up as locked there and also calibrated that exactly the values are specified for the subsequent ramming operation and are adhered to for smooth lifting and lowering of the tamper rod are important.

Any leaks that occur are advantageous due to the system pressure ega The storage pressure is specifically maintained, which is possible that the pump is pressure-controlled and that it has a check valve and a Pressure accumulator is assigned or upstream.

A synchronizing run of the lifting and holding disks is according to the inven This is achieved by the pair of rockers at the top tip being one of a groove and has a correspondingly shaped pin formed positive entrainment. This forced driving is at the top pivot point and at the level of the distributor wheels orderly and acts in such a way that the modified lifting and holding disks are at the height of the Axles of the planet gears specifically shift their contact pressure to the tamper rods can muster. The tamper bars are lifted and dropped over the segmentally differently designed lifting and holding disks, whereby these have a lifting cam, which is continuous at both ends Transition to the recessed parts is provided. This is an even one When ramming, change from lifting the tamper rod to free fall Pounder rods given, the lifting and holding disks advantageous at the same time  Serve leadership because they have the triangle of force and the associated lifting and holding disks can also take on advantageous management tasks at the same time.

One of jerky bumps u. Ä. free operation of the ramming device is ge ensures because according to a development of the invention that the lifting and Hal discs from the lifting cams, an elastic intermediate element and a hub ring exist, which are non-positively connected. It is special here advantageous if the hub ring and the intermediate element coexist via vulcanization are connected, the hub ring each having four grooves offset by 90 ° points, which are in their position in relation to the projecting lifting cam. In order to is a secure connection between the individual components of the lifting and holding shoe ben even with a corresponding load and also a connection between the lifting and retaining washers and the camshaft shafts.

To achieve the optimal cake properties it is advantageous if that the camshaft shafts have a speed-controlled drive, which is an opti Male adjustment of stroke height and stroke frequency of the tamper rods enables is trained. Because the speed-controlled drive ensures a uniform rotation of the stroke disc shafts and thus also the lifting and holding discs, is also the precise adjustment of the lifting height and the lifting frequency is always guaranteed.

The necessary driving forces are safely transferred from the drive to the lifting and If, as provided according to the invention, the holding disks transmit the drive via a Gear wheel and a two-stage gear arrangement with the lifting and holding disks connected is. The speed-controlled drive can thus selectively its driving force forward and ensure that taking into account the pressure control valve Tamper rods either raised and locked or raised and for the Pounding operation can be dropped again.

It was pointed out earlier that due to the particular ren training of the lifting and holding discs there is the possibility of using a relatively fold and reusable components to work. In further training for this  it is provided that the lifting and holding disks with an associated gear arrangement and link pairs and hydraulic cylinders are assigned to a plug-in module. These plug-in modules can be used appropriately and, if necessary, as a whole be replaced so that any repair work can be carried out more quickly are. It is also advantageous to work with a few individual parts.

The invention is also characterized by a useful and for Pounding operation economical process for producing a coal cake with the help from up and down moving tamper rods, with driven lifting discs Lifting via eccentrically arranged lifting cams and via recessed parts falling is caused. A adapted to the respective circumstances adaptable operation and advantageously adapting operation is possible in that the lifting disks act as lifting and holding disks both for ramming operation and the traversing and locking mode is used, and for this purpose with an adapted add-on be pressed forcefully onto the tamper rod. The one for both, or rather for three operating phases required drive pulleys are always the same, namely lifting and holding disks, which are adjusted by adjusting the set force for the different loading drive phases can be used evenly. It is only necessary to provide the assistant to generate accordingly or to provide what has already happened above which is mainly achieved as a hydraulic cylinder trained energy store.

The advantageous, even production of the coal cake and the same Even loading of the tamper rods and the entire facility is ins special also ensures that the auxiliary force with each pounding process - preferably automatically - is reset. This is done accordingly Trained pressure control valve, which practically calibrates after every tamping gear enables or before initiation of the pounding process.

The invention is particularly characterized in that a ramming direction is created, which is due to the evenly used in each case Provision power both from the units required for this and from the rammers increased service life, while advantageously an optimal  because coal cake is practically evenly compressed over the entire length becomes. The even supply force also ensures a lower load stung, in particular the friction linings of the tamper rods, with the fact that the required machinery is significantly simplified because now the lifting and holding disks Perform multiple functions at the same time. Take the increase in the economy and the lower manufacturing costs, the invention also stands out in that an improvement in coke quality is achieved because of the lifting height the tamper rods kept constant during the entire ramming process even in unfavorable climatic conditions.

Further details and advantages of the subject matter of the invention result from the following description of the accompanying drawing, in which a preferred Embodiment with the necessary details and items shown is. Show it:

Fig. 1 shows a lifting and Arretierantrieb in Vorkopfansicht,

Fig. 2 shows the lifting and Arretierantrieb in side view,

Fig. 3, the lifting and retaining disc when lifting and locking the Stampfer rod in side view,

Fig. 4, the lifting and holding disc in section and

Fig. 5 is a schematic representation of the hydraulic switching system.

Fig. 1 shows a device 1 with two tamping rammer rods 2 and 3. These tamper bars 2 , 3 are provided with friction linings 4 , the details of which cannot be seen in FIG. 1. However, the friction lining 4 ensures that the lifting disks 6 , which are rotatably arranged with the lifting disk shaft 5 , can both raise, lower and lock the tamper rods 2 , 3 via friction.

The lifting disks 6 , which are designed as lifting and holding disks 15 , have a segmentally different surface. One part is designed as a lifting cam 7 and another part as a recessed part 8 , as can also be seen, for example, from FIGS. 2 and 3.

The drive 9, which is not shown separately in FIG. 2, acts via the toothed wheels 11 , 12 , 12 'on the lifting disk shaft 5 , which thus bring the lifting disks 6 , 6 ' into rotary movements.

The individual lifting and holding disks 15 designed lifting disks 6 , 6 'are each assigned to a pair of rockers 16 , 17 , the angles 19 , 20 with its lateral legs are pivotable via upper pivot points 23 . These lateral legs 19 , 20 or the pairs of rockers 16 , 17 together with the energy accumulator 21 form a triangle of forces which ensures that the lifting discs 6 , 6 'and the lifting and holding discs 15 always rest on the friction lining 4 of the tamper rods for accurate and correct contact 2 , 3 cares.

Fig. 1, it can be seen that the important for driving the tamper bars 2, 3 parts each associated with a plug-in module 18, which is provided for every two Stampfer bars 2, 3, wherein it is also conceivable each Einschubmodu le to use 18 which is only intended and equipped for one of the tamper rods.

At the upper tip 24 of the pairs of rockers 16 , 17 are 26 forcibly realized via groove 25 and Zap fen, through which a synchronous counter-rotating rotation is achieved when engaged. The double-acting hydraulic cylinder 22 as a power store 21 pulls the rocker arms connected to it via its annular surface and thus forms a frictional connection between the lifting discs and the tamper rod, which is optimal. The displaced in the pliers and in the form of a planetary gear via gears driven lifting discs 6 , 6 'are pressed under tension with their Hubnoc ken 7 under a defined hydraulic contact pressure against the friction linings 4 of the tamper rods 2 , 3 . As a result, the biasing force is applied, which he is required to lift the tamper rods 2 , 3 . Axial guidance of the tamper rods 2 , 3 in the ramming device 1 is of great advantage for smooth operation of the system. For this reason it is necessary to fix the lifting disks 6 to the tamper axis. This is achieved by the already mentioned non-positive triangle, which ensures that the lifting discs 6 are fixed in the vertical tamper axis.

Fig. 3 can be seen that the respective ends 27 , 29 of the lifting cam 7 to the recessed part 8 in the form of a smooth transition 28 , 30 are formed. In order to ensure optimal operation when switching from the lifting function to the opening of the tamper rods in their upper end position, the lifting discs must roll over their entire circumference on the friction lining of the tamper rod in the last function.

Between the lifting cam 7 and the recessed part 8 and the Na benring 32 , an elastic intermediate element 31 is provided, which is preferably vulcanized. The hub ring 32 has four grooves 33 , in this way and to ensure a secure connection with the lifting disk shaft 5 and additionally to ensure the required 90 ° offset from one to the other lifting disk.

FIG. 4 shows an explanatory view of FIG. 3 through a lifting and holding disc 15 , it also being clear here that the elastic intermediate element 31 is provided between the hub ring 32 and the lifting cam 7 and the recessed part 8 . 33 also designates the groove here in order to achieve the necessary frictional connection with the lifting disk shaft 5, not shown.

Fig 5, finally, shows a Stampfer rod 2, which is fixed here between the two lifting cam 7 lifting and holding disks 15, 15 '. The lifting and holding disks ben 15 , 15 'are connected via the rocker pairs 16 , 17 to the hydraulic cylinder 22 . The double-acting hydraulic cylinder 22 pulls the rocker arms 16 and 17 connected to it via its annular surface, thus forming a force connection between the lifting and holding disks 15 , 15 ′ and the tamper rod 2 .

When driving the tamper bar 2 in its end position, the 3/2 way seat valve switches 37, the pilot operated check valve 38 and so leaves a Zirku lation of the oil between the piston side of the cylinder and the hydraulic tank T to. The 2/2 way seat valve 39 is switched and thus open. About this 2/2 way seat valve 39 , the defined pressure of the pressure accumulator 40 is on the annular surface of the hydraulic cylinder 22nd The further 2/2 way seat valve 41 and the 2/2 way seat valve 43 are not switched and are therefore closed. The hydraulic cylinder now takes its movement to the outer contour of the eccentric cam plate 6 and the raising and holding ticket be 15, 15 'to and provides via the pressure accumulator 40 that the lifting and retaining washers 15 with a defined pressing force over their complete Circumferential area come to rest on the friction linings 4 and move the tamper rods 2 , 3 in their end position.

Before the coal cake is moved into the coke oven, the tamper bars 2 , 3 must be moved away from the cake surface, into their upper end position and locked there. This may also be necessary if a defect occurs on one or more tamper bars 2 , 3 . In these cases, the valves 37 , 38 , 39 are switched open as described when the tamper rods 2 , 3 are opened. The 2/2 way seat valve 41 is closed (de-energized). The 2/2 way seat valve 43 is switched open. The system pressure thus acts on the annular surface of the hydraulic cylinder 22nd Any leaks that occur are equalized by the system pressure or the storage pressure of the pressure accumulator 40 is maintained. For this reason, the pressure-controlled pump 35 of the system is preceded by a check valve 45 and a pressure accumulator 46 .

All these individual valves 37 , 38 , 39 , 41 , 42 and 43 form the pressure regulating valve 36 , which ensures that the pressure of the pump 35 is passed on to the hydraulic cylinder 22 in a targeted and correct and intended manner. With 44 the return line is designated.

The tamper rods 2 , 3, which are in their end position, are moved downward towards the ramming base via the lifting and holding disks 15 when the ramming operation is to begin. The lifting and holding disks 15 , 15 'connected via the hydraulic cylinder 22 follow the length of the tamper rods 2 , 3 over their circumference. Here, the 3/2 way seat valve 37 is open and the check valve 38 is unlocked. This results in an oil flow from the piston side of the hydraulic cylinder 22 to the oil tank T. The 2/2 way valve 39 is open, there is a connection from the ring surface of the hydraulic cylinder to the pressure accumulator 40 . The 2/2 way valves 41 and the pressure-maintaining and at the same time pressure control valve 42 are also open. They let oil back into the oil tank T until the pressure set in the oil pressure holding valve 42 is reached. In order to keep the oil pressure between the cylinder ring surface and Druckspei cher 40 constant despite the possible leakage of oil leakage, the 2/2 way seat valve 43 is switched open and the higher system pressure, the oil is as described above via the valves 41 and 42nd pressed back into the oil tank T.

Through these measures, it is possible that the tamper can be brought down to the Koh levorlage specifically via the lifting disks 16 and 16 ', which serves to avoid misalignment of the tamper rods and thus prevents the tamper rod feet from kinking.

The aforementioned calibration of the lifting and holding disks 15 , 15 'is carried out by the 3/2 way seat valve 37 and the unlockable check valve 38 are closed. As a result, the cylinder rod of the hydraulic cylinder 22 is prevented from moving further in the direction of the piston side, because the oil column between the side of the piston and the check valve 38 is prevented from returning to the oil pan by the check valve 38 , but allows oil to flow into the piston chamber if necessary.

Hydraulic cylinders 22 following the revolving lifting and holding disks 15 , 15 'can be pulled out only via its ring surface via a positive guidance or forced driving. The greatest extension length is achieved when the two projecting lifting cams 7 of the eccentric lifting and holding disks 15 come into contact with the friction linings 4 of the tamper rods 2 , 3 . The oil displaced when the piston rod of the hydraulic cylinder 22 is pulled out is pressed via the pressure control valve or pressure holding valve 42 . This creates a defined pressure between the cylinder surface 13 , pressure accumulator 40 and the pressure control valve 42 . The lifting and holding disks 15 , 15 'thus have a defined symmetrical position with respect to the tamper rod axis, which has a positive influence on the wear of the sliding guide in the tamper rod guide. The far more important aspect arises, however, from the fact that the lifting and holding disks 15 , 15 'are pressed onto the friction linings 4 of the tamper rods 2 , 3 with a defined contact pressure adapted to the tamper weight. This auxiliary force is automatically reset with each ramming process.

Due to the automatic provision of the auxiliary force, the system can adjust itself to all differently operated tamper rods 2 , 3 and always generate a uniform contact pressure. In addition, this optimum position makes the pound cake even. The lifting height of the stamping rods 2 , 3 is constant during the stamping process and the potential energy given off when the stamping rods fall is equalized within the entire stamping cake. This equalization is an important parameter for the stability of the tamped cake on the one hand and for achieving good coke quality on the other.

The pound cake experiences an increased density due to the constant high head of the stamp rods 2 , 3 . This also increases the amount of coal used per pound cake. Since the amount of coal used is directly related to the coke produced, this provides proof of the increase in profitability.

With the aid of the plug-in module 18 already mentioned, cost-effective series production can also be achieved due to the similarity.

As already mentioned, the drive takes place from a central drive unit or a central drive 9 , which expediently consists of a motor with a transmission. A sub-distribution, which leads from the gear wheel 11 in two stages 12 , 12 'to the lifting discs or lifting and holding discs 15 , 15 ', is together with four lifting discs, two pairs of rockers 16 , 17 and two double-acting hydraulic cylinders 22nd shifted in a common gearbox which represents the plug-in module 18 already mentioned. In this way, the rammer frame can be inexpensively manufactured as a simple welded construction without complicated and therefore expensive boring machine work as a series part. The sub-distributions can be manufactured and installed as small, compact drive modules. Since they can be mass-produced, they are inexpensive to manufacture and can be easily replaced and / or repaired in the event of a malfunction.

The lifting and holding disks 15 also simultaneously form a safety gear, which is advantageously integrated into the overall system. There is therefore no need for a separate machine, which has a cost-effective effect. The reduction in downtime and the increase in the service life of the friction linings 4 are further clearly positive aspects. These are given by the fact that the locking proposed here in the upper end position of the tamper rods 2 , 3 has decisive advantages over the known system of the safety device in use. In this case, the lifting segments when securing and locking the tamper rods 2 , 3 do not fall suddenly, as previously practiced, and destroy the friction linings due to line pressure becoming too large transversely to the tamper rod, but the lifting and holding disks 15 , 15 'are continuously on guided along the friction linings and only pressed on differently. The lifting and holding disks 15 , 15 'are thus in constant contact with the tamper rod friction linings over their entire circumference during the rotation with a defined contact pressure. The tamper rods 2 , 3 are gently moved into their end position via the lifting and holding disks 15 , 15 'and locked there in their end position by means of the contact pressure set with the pressure holding valve 42 .

The careful handling of the friction linings 4 increases their service life, which has the consequence that the downtime of the ramming device 1 is significantly reduced, which leads to a noticeable saving in operating costs.

All of the above-mentioned features, including those that can only be taken from the drawings, alone and in combination are regarded as essential to the invention.

Claims (15)

1. ramming device for producing a coke suitable for the coking, compressed coal cake with several, over the length of the ramming mold arranged tamper rods ( 2 , 3 ) with friction linings ( 4 ) and bilaterally running camshaft shafts ( 5 ), which have a central drive ( 9 ) and oppositely displaced lifting discs ( 6 ), which can be pressed against the friction lining ( 4 ) of the tamper rods ( 2 , 3 ) with their projecting lifting cam ( 7 ) and can be brought up to it with a recessed part ( 8 ), characterized in that the Lifting disks ( 6 ) are designed as combined lifting and holding disks ( 15 ) and are each assigned to a pair of rockers ( 16 , 17 ), which is a differentiated, force-fitting system of both the lifting cams ( 7 ) and the recessed parts ( 8 ) of the lifting and holding disks ( 15 ) is adjustable. 2. ramming device according to claim 1, characterized in that the pair of rockers ( 16 , 17 ) is designed like pliers and a force triangle resulting, the side legs ( 19 , 20 ) via a force accumulator ( 21 ) are connected to each other ver. 3. ramming device according to claim 2, characterized in that the lateral leg ( 19 , 20 ) connecting energy accumulator ( 21 ) is designed as a double-acting hydraulic cylinder ( 22 ). 4. ramming device according to claim 3, characterized in that the designed as a double-acting hydraulic cylinder ( 22 ) energy accumulator ( 21 ) via a pressure control valve ( 36 ) is adjustable to ramming operating and locking pressure. 5. ramming device according to one of the preceding claims, characterized in that the pressure control valve ( 36 ) between the cylinder surface ( 13 ) and the return line ( 44 ) is connected and a 3/2 way seat valve ( 37 ) with unlockable check valve ( 38 ), a 2nd / 2-way seat valve ( 39 ) with pressure accumulator ( 40 ), a 2/2-way seat valve ( 41 ) with pressure control valve ( 42 ) and a further 2/2-way seat valve ( 43 ). 6. ramming device according to claim 5, characterized in that the pump ( 35 ) is pressure-controlled and that it is assigned a check valve ( 45 ) and a pressure accumulator ( 46 ). 7. ramming device according to one of the preceding claims, characterized in that the pair of rockers ( 16 , 17 ) on the upper tip ( 24 ) has a positive drive formed by a groove ( 25 ) and a correspondingly shaped pin ( 26 ). 8. ramming device according to one of the preceding claims, characterized in that the lifting and holding discs ( 15 ) have a lifting cam ( 7 ) which is provided at both ends ( 27 , 29 ) with a continuous transition ( 28 , 30 ). 9. ramming device according to one of the preceding claims, characterized in that the lifting and holding discs ( 15 ) consist of the lifting cams ( 7 ), an elastic inter mediate element ( 31 ) and a hub ring ( 32 ) which are non-positively connected. 10. ramming device according to one of the preceding claims, characterized in that the hub ring ( 32 ) and the intermediate element ( 31 ) are connected to one another via vulcanization, the hub ring ( 32 ) each having four grooves ( 33 ) offset by 90 °, which in their position in relation to the projecting lifting cam ( 7 ). 11. ramming device according to one of the preceding claims, characterized in that the lifting disc shafts ( 5 ) have a speed-controlled drive ( 9 ) which is designed to enable optimum adjustment of the lifting height and lifting frequency of the ramming rods ( 2 , 3 ). 12. ramming device according to one of the preceding claims, characterized in that the drive ( 9 ) via a gear wheel ( 11 ) and a two-stage gear arrangement ( 12 , 12 ') is connected to the lifting and holding disks ( 15 ). 13. ramming device according to one of the preceding claims, characterized in that the lifting and holding disks ( 15 ) with associated gear arrangement ( 12 , 12 ') and rocker pairs ( 16 , 17 ) and hydraulic cylinders ( 22 ) are assigned to a plug-in module ( 18 ). 14. Process for producing a coal cake with the aid of and moved tamper rods, with driven lifting disks via eccen tric cam lifts a lifting and a spring back over parts falling is caused characterized, that the lifting disks act as lifting and holding disks both for the ramming used as the traversing and locking operation and for this each with adapted Additional force can be pressed onto the tamper rod. 15. The method according to claim 14, characterized, that the auxiliary force is switched on again - preferably automatically - with each pounding process is posed.