HU192458B - Chamber lock advantageously for hydraulic transporter of thickening chamber - Google Patents

Abstract

One of the ends of the chamomile is open, cylindrical a housing (25) having an inlet opening on its shell (26) and an outlet (34). The housing (25) has a coaxial longitudinal axis a rotatable cylindrical rotor about the inside (28) having an inner space (29) open towards the open end of the housing (25). The rotor (28) in communication with the interior (29) on its mantle a standing aperture (30) is provided which a rotating the rotor (28) to cover or with an inlet (26) formed on the housing (25) with outlet (34). The rotor (28) with actuator, preferably sealed from the housing (25) with an outboard drive shaft (31). (Figure 5)

Description

BACKGROUND OF THE INVENTION The present invention relates to a chamber closure, preferably a compression chamber for a hydraulic conveyor, for pipeline transport of a mixture of solid particulate matter and liquid.

Many variants of hydraulic material conveyors for the transport of solid material particles and liquid mixtures by pipeline are known.

The simplest is the slurry pump hydraulic conveyor, whereby the liquid passes through the rotors of the slurry pump, so that the moving energy required for the flow of the mixture is supplied directly by the slurry pump. The slurry pumps can be placed in parallel and in series so that slurry pumps can be used to build a very high performance and long range pipeline conveyor.

Hydraulic conveyors with metering chamber systems are more advanced and economical than the slurry pump system. In the system, the kinetic energy required for the mixture flow is provided by pumping pure liquid, and the dosing chambers are designed to transmit the clean liquid pressure of the atmospheric or low pressure mixture charged into the dosing chambers. Therefore, the structure and fittings of the dosing chambers must be such that they can provide the conditions for "pressure transmission", also known as "dosing function".

Depending on the design of the metering chambers, one or two small or larger cylindrical (50-200 m ³ ) cylindrical, closed, pressurized tanks are known as so-called. tank dispensers, or two or three 50-400 m long lockable and also undivided pipelines, the so-called tube chamber feeders, or so-called pipelines, which are also 50-400 m long but divided in two volumes. compression chamber dispensers.

The results of the last decades show that mainly hydraulic conveyors with pipe chamber and compression chamber system have been built and / or built. In the following, in order to illustrate the state of the art of the invention, only the development and connection to the invention of the tubular and compression chamber hydraulic conveyor devices will be briefly described, first and then in Figures 1-3. Referring to FIGS.

Tube Chamber Dispenser Idea Ε. H. Reichl and S. A. Jones formulate U.S. Patent 2,485,208, published in 1952. U.S. Pat. No. 928,153 In their German patent. This apparatus has a mixing tank, a liquid storage tank and at least one dosing chamber. Through the dosing chamber connection lines and the closures integrated therein, a filler pump connected to the mixing tank, an emptying conveyor pump connected to the fluid storage tank, or a pump. it is directly connected to the fluid storage pool and also to a mixing pipeline. A seven-chamber unit provides continuity of discharge-conveyor fluid flow, and a three-chamber unit also provides continuity of charge flow. In this solution, the tube chambers have only a "dosing function", which is accomplished by actuating the shut-off devices incorporated in the connection pipe in the proper order.

The Reichl-Jones tube chamber dispenser is further developed by U.S. Patent No. 160,526. A Hungarian patent according to which the dosing chambers are connected to the drainage conveying pump or via smaller diameter pipes around the closure embedded in the connection pipe and the smaller closure embedded therein. with the drain line. During the operation of the apparatus, when the tube chambers are changed, the pressure differences are first compensated through the smaller closures, and then the closures built into the connecting pipes are actuated. This solution eliminates the adverse forces resulting from the differential pressure but does not change the "dosing function".

The function of the metering chambers is modified by the method described in No. 176,878. termed a "compression chamber process" in the Hungarian patent. The essence of the procedure is that the former only "dosing function" of the dosing chambers has been expanded by a so-called "dosing function". With the "compaction function" and the two functions, dosing and compaction, are simultaneously performed in the same space, in at least part of which is provided with a filter surface, and the compression, i.e. reducing the amount of liquid in the mixture, is carried out by the pressure of the discharge-transfer fluid pump. Through the small-diameter lines separated from the dispensing area by the filter surface, the fluid receiving space of the filtrate is provided with the closure means, by means of the drainage-transfer fluid pump or by means of a liquid pump. the fluid storage tank is connected to a pool. The locking elements built into the small diameter pipes also provide pressure equalization.

Up to now, the compression chamber processes include two hydraulic conveyors, which may be abbreviated as water-jet compression chamber dispensers (Hungarian Patent No. 176,878) and slurry-filled compression chamber dispensers (Hungarian Patent Application AA-894). They share the same process of dosing chambers into a dosing space and a liquid space, differing in filling the dosing space and cleaning or loading the material deposited on the filter surface. it is in the process of solving the pressure difference between the filler and discharge carrier.

This development, while retaining certain structural elements of the Reichl-Jones system, added the tubular-chamber hydraulic conveyor with structural elements to provide a "compaction function" -21

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We have introduced Ε above. The development of the tubular hydraulic conveyor system, developed by H. Reichl and S. A. Jones in 1952 and over the past 30 years.

to sum up, it can be seen that the first equipment implements the basic idea and the so called "Dosing function" - achieved with slightly different structural solutions.

The first developments add new structural elements to this basic idea.

The aforementioned 160526. The Hungarian patent contains a control and actuator device which can be connected to the basic solution, which solves the difference between the filling and emptying pressure and thus provides a high level of operational safety. The Hungarian patent uses a pre-chamber to maintain the filling of the chambers. A similar construction and similar task was made in U.S. Patent No. 2,556,735. German patent. However, these additions do not change the basic function of the Reichl-Jones system, the "dosing function".

Subsequent developments already divide the dosing chamber, using a "compression chamber" instead of a "tube chamber" as a new structural element, thereby providing the conditions for a "compaction function" alongside the "dosing function". However, with the newly designed dosing chamber, the shut-off valves, filler and drainage pumps, which are still from the Reichl-Jones system, remain in the connecting pipes.

It is an object of the present invention to provide a chamber lock for tubular material transport, preferably further integrated into a compression chamber hydraulic conveyor that further simplifies the hydraulic conveyor while retaining all the results of the prior art Reichl and Jones inventions, structural design of the dosing and compaction function.

The chamber lock according to the invention has an open, cylindrical housing at one end with an inlet opening and an outlet opening on its periphery. The housing has a cylindrical, hollow rotor rotatably coaxially about its longitudinal axis, the interior of which is open towards the open end of the housing. The periphery of the rotor is provided with an opening communicating with the interior, which can be rotated to cover the inlet or outlet of the housing. The rotor is provided with an actuator, preferably a drive shaft sealed out of the housing.

The positioning of the chamber locks that can be rotated about their longitudinal axis at the ends of the metering chambers provides several advantages over the wedge or flap closure of the tubular metering dispensers, which simplifies the construction of the metering apparatus and also makes it more economical to operate.

The space required for the rotary chamber lock is slightly larger than the diameter of the metering chamber and therefore does not require a stand-alone building, as opposed to leaf or wedge-type closures - several times the size of metering chambers and therefore installed in a separate crane hall.

The opening and closing time of the rotary chamber lock is shorter than that of the wedge or flap closures, thus reducing the overall duration of the dosing operation. The force required to open and close the chamber lock depends solely on the friction within the locking member, so the chamber lock can be operated with a lower power actuator. So the overall rotary chamber lock is small and simple to drive,

Preferably, the periphery of the rotatable chamber lock housing is provided with an additional opening forming a slot water connection.

The subject matter of the invention, as well as the main known solutions, will now be described in more detail with reference to embodiments and drawings. In the drawings it is

Figure 1: A known dual-chamber Reichl-Jones tubular hydraulic conveyor,

Figure 2: A known three-chamber metering system hydraulic conveyor, a

Fig. 3 shows a known hydraulic chamber conveying chamber, a

Fig. 4 is a hydraulic conveyor of the chamber compression chamber according to the invention;

Figure 5 is a longitudinal sectional view of the chamber lock in accordance with the present invention;

Figure 6 is a cross-sectional view of the chamber lock shown in Figure 5.

The structural features of the Reichl and Jones tubular hydraulic conveyor are shown in Fig. 1 on a two-chamber machine. The basic elements of the apparatus are the mixing tank 9, the filling pump 10 which fills the mixing tank 9 into the dosing chambers A, B, the liquid storage tank 14, and the drain transport fluid pump 15 which drains the liquid from the liquid storage pool 14. , B from metering chambers and pushing it into the mixing pipeline 13. The metering chambers A, B are formed by two 50 to 400 m long pipelines, which are connected via the connecting lines 11a, 11b, 12a, 12b, 16a, 16b, 17a, 17b to the filling pump 10, via the discharge line 19 to the discharge pump 15, with the mixing pipeline 13 and the drainage tank 18 via the drain line 18. Four la-4a, respectively, per tube chamber. 11a, 11b, 12a, 12b, 16a, 16b, 17a, 17b, which define the lugs 23a and 4b. 23b. The operation of the pumps, valves, electrical devices built into the conveying system is controlled by a control device.

The operation of the known apparatus of Figure 1 is described below:

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In the outlined position ar. The metering chamber is emptied, and the metering chamber B is being filled. The mixture of the given composition is drawn from the mixing tank 9 by the filling hub pump 10 and pushed through the open closure 2b of the connecting line 11b into the dosing space 23b of the dosing chamber B and filled with the mixture. The inlet mixture forces the liquid in the dosing space 23b into the fluid storage basin 14 through the open closure 3b of the connection conduit 17b. Meanwhile, the discharge pump liquid pump 15 pushes the liquid in the liquid storage basin 14 through the open closure 4a of the connection conduit 16a of the dosing chamber A into the dispensing space 23a and the conduit 13a through the conduit 13a.

After the dispensing space 23a has been emptied and the dispensing space 23b has been filled, the writing means la-4a, lb-4b z are actuated by the control device in the specified order, and after completion of the closing-opening operations, the filler pump 10 begins to fill and begins to empty the dosing space 23b.

The closing and opening operations of the closures follow one another in such a sequence that the mixture flow in the mixing pipeline 13 is continuous. For this purpose, it is only necessary to ensure the continuity of the discharge fluid flow. This condition can be achieved in two dosing chamber systems only when the flow of charge stops during the dosing chamber changeover period.

Thus, in the Reichl-Jones tube chamber dispenser, the dosing chamber A, B is the same size as the mixing pipeline 13, which has a la-4a and a 1-a. lb-4b zuí obliterated part of the undivided volume - 23a, respectively. Dispenser space 23b - in which the print or the so-called "feeder". dosing function ', conditions are met. This is where 'Via,' 23b and delivered by the fill pump 10 and remain there until the required operations of the zinc organs required to create the discharge conveyor pressure and to initiate the discharge flow are carried out by the control device and from there the conveyor is forced by the discharge conveyor. pressure into the mixing conveyor 13. It can be seen that in Figs. In theory, there should be no change in the composition of the mixture filled into the dispensing compartment 23b, either during the filling of the dispensing compartment, during the stay in the dispensing compartment, or during the emptying of the dispensing compartment.

Thus, in the Reichl-Jones system, the tube chambers have only a "dosing function" and this function, ie switching from a lower filling pressure to a higher discharge pressure and initiating the flows required for charging and emptying, integrated locking means provided by the opening and closing operations determined by the control device.

Figure 2 illustrates an advanced three-chamber metering system hydraulic conveyor. In the apparatus, the dosing space 23a-23c of the dosing chambers A-p is also directly connected to the dosing-conveying liquid pump 15 via a line of smaller diameter. with the liquid storage pool 14, the two liquid portions 16a-16c, respectively; 3a-3c and 17a-17c respectively. 4a-4c bypassing the closures, and into each of these small-diameter conductors a smaller size 5a-5c, respectively. A closure member 6a-6c is also incorporated. The three dosing chambers allow the dosing-conveying fluid flow to continue, as well as the filling flow during the change of dosing chamber.

In the position shown, the dosing chamber A is evacuated, the dosing chamber B is being filled, and the dosing chamber C is interrupted, and.3 the dosing conveyor fluid is in the dosing space 23c under the pressure of the filling pump 10.

After emptying the dispensing space 23a of the dispensing chamber A and filling the dispensing space 23b of the dispensing chamber B, the closures 1a, 2a to 2c, 3a to 3c, 4a to 4c are installed in the connecting conduits 11a to 11c, 12a to 12c, 16a to 16c, 17a to 17c and the smaller closures 5a-5c, 6a-6c embedded in new small-diameter conduits are actuated by the control device in the specified order, and after completion of the closing-opening operations, the filler pump 10 begins to fill the dispensing space 23c of the dispensing chamber C it begins to empty the dosing space 23b of the dosing chamber B, and the dripping fluid flow in the dosing space 23a of the dosing chamber A stops.

The program of the control device must be such that during the change of the tube chamber, before the actuation of the closures 1a, 2a to 2c, 3a to 3c, 4a to 4c, that is to say the flows starting in the dosing spaces 23a to 23c, <, 6a-6c, by actuating the shut-off valves, equalize as much as necessary, and then operate the shut-off valves 1a, 2a-2c, 3a-3c, 4a-4c in order to ensure continuity of charge flow and discharge-conveyor flow.

The practice provided several solutions for controlling and operating the closures, i.e. the order in which they were opened and closed.

It will be appreciated from the foregoing that these & supplements do not alter the structure of the dosing chambers A, B, C, nor the volume or function of dosing spaces 23a-23c, but merely provide an opportunity for the difference between the filling and discharge pressures and prior to initiating discharge and discharge streams, compensate through small diameter pipelines to eliminate unwanted forces due to differential pressure across the entire hydraulic conveyor 4

192 458, and the introduction of a continuous flow of filling flows would improve the efficiency of hydraulic transport.

These additions have greatly contributed to the recent construction of multi-chamber hydraulic conveyor systems that are reliable and long-lasting.

With the above addition, although two smaller closures are provided in addition to four main shut-off devices per metering chamber, the "metering function" has not changed, but the function is provided only by a combination of several closing means. Nonetheless, the new closures have significantly increased the capacity of the tube chamber dispenser, enabled the use of higher drainage and delivery pressures, and have resulted in system improvements.

Figure 3 shows a three-chamber version of a known compression chamber hydraulic conveyor.

Its structure is further recognizable by the Reichl-Jones structure in that it has 9 mixing tanks and 14 fluid storage pools, and the metering spaces 23a to 23c of the A, B, C metering chambers 11a to 11c, 12a to 12c, 16a to 16c, 17a to 17c are connected to the filler pump 10, the drainage fluid pump 15, the mixing pipeline 13 and the liquid storage basin 14, and to the connection lines one to four, one to three, 2a to 2c, respectively. , A locking member 4a to 4c is incorporated.

The difference is in the function of the dispensing chambers A, B, C and in the design of the chambers for the purpose of the function. For the purpose of the thickening function, the dispensing chamber A, B, C is divided in volume, which is divided into the dispensing space 23a to 23c and the liquid receiving space 22a to 22c between which the filter surface 24a to 24c is incorporated.

Liquid space 22a-22c is connected to a discharge pump 15 and a liquid storage pool 14 via a conduit 20, 21 having a smaller diameter. Each of the conduits 20, 21 is provided with a smaller locking member 5a-5c, 6a-6c.

In the case described, the dosing chamber A is evacuated, the dosing chamber B is being filled. During filling, a portion of the fluid from the dispensing chamber 23b through the filter surface 24b is forced into the liquid compartment 22b by a pressure difference between the liquid compartment 22b and the dispensing chamber 23b, and this fluid passes through the open closure 6b and the small diameter conduit 21 , or, for other purposes, to the desired location. In the metering chamber C, flow is interrupted and in the metering space 23c there is a discharge conveying fluid under the pressure of the filling pump 10.

After emptying the metering space 23a of the metering chamber A and filling the metering space 23b of the metering chamber B with a thickened mixture, the la, 2a, 2c, 3a-de, 4a-4c integrated in the conduits 11a-11c, 12a-12c, 16a-16c, 17a-17c. the closures and the closures 5a-5c, 6a-6c embedded in the ducts 20, 21 connected to the liquid compartments 22a-i22c of the dispensing chambers A, B, C are actuated by the control device in the specified order, and after the it begins to fill the dosing space with the mixture, and the discharge conveying fluid pump 15 begins to drain the concentrated mixture from the dosing space 23b of the dosing chamber B, while the dosing conveying fluid flows into the dosing space 23a of the dosing chamber A.

The control device program should be such that, prior to emptying the metering space 23b of the metering chamber B filled with condensed mixture, rinse the filter surface 24b between the metering space 23b and the fluid space 22b by carrying out a fluid Opening of the closure 5b is required. This operation also compensates for the pressure difference between filling and emptying in the dosing space 23b, so that the closing and opening operations of the latches 1b, 2b, 3b, 4b in the connecting ducts 11b, 12b, 16b, 17b can then be initiated. The discharge flow in the metering space 23b of the metering chamber B and the charging flow in the metering space 23c of the metering chamber C can be started.

Of course, the control device program must ensure that the charge flow and the discharge flow are continuous with each change of dosing chamber.

The practice has provided several solutions for controlling and operating the closures, i.e. the order in which they are opened and closed, and their application is primarily in the physical particle size, particle shape, particle size distribution, etc. of the solid to be transported. - depends on its properties.

The metering chamber A, B, C thus has a "metering" and "compaction" function, and this "compaction function" cannot be separated in time or space from the "metering function", i.e. the hydraulic conveyor is both a compaction device and a metering device. The compaction is the result of the structural design of the dosing chamber A, B, C - the existence of the dosing space 23a-23c and the fluid space 22a-22c, the filter surface 24a-24c, the fill pump 10, the drain pump 15.

The invention will be described in more detail with reference to Figure 4.

The mixture resulting from the unexplained operation of the three-chamber hydraulic conveyor according to the present invention is collected in the mixing tank 9. The suction side of the filler pump 10 is connected to the mixing tank 9, and its discharge side is connected to the metering chambers A, B, C via the connecting lines 11a-11c.

The metering chambers A, B, C are also connected via the connecting lines 12a-12c to the mixing pipeline 13.

192,458 with brakes, through the conduits 16a-16c and through the discharge line 15 with the discharge side of the liquid pump 15, and through the conduits 17a-17c and the outlet 18 with the liquid storage pool 14. The suction side of the drain pump liquid pump 15 is in communication with the liquid storage pool 14. The feed chambers A, B, C are provided with rotatable chamber latches 7a to 7c, 8a to 8c, at each end of the feed chambers A, B, C, of which the chamber latches 7a to 7c are provided with 11a to 11c, respectively. . 12a through 12e connect the dosing spaces 23a to 23c with the filler pump 10 and 12a respectively. between the mixing pipeline 13 and the chamber locks 8a-8c between the pipelines 16a-16c and 16a respectively. 17a to 17c connect dosing spaces 23a to 23c with the discharge pump 15, respectively. between the fluid storage pools 14. Simultaneously with the chamber lock 7a-7c, 8a-8c, both 11a, 12a; 11b, 12b; 11c, 12c; 16a, 17a; 16b, 17b; Connecting lines 16c, 17c may also be blocked from the dispenser space 23a-23c. The slot water connection locations of the chamber locks 7a-7c, 8a-8c are connected to the pressure side of the liquid pump 15 through the small diameter pipe 27.

In the case described, the dosing chamber A is evacuated, the dosing chamber B is being filled. During filling, a portion of the fluid from the dispensing chamber 23b through the filter surface 24b is forced into the liquid compartment 22b by the pressure difference between the liquid compartment 22b and the dispensing chamber 23b and through the open closure 6b and the small diameter conduit 21 to the liquid storage basin 14. In the metering chamber C ', flow is interrupted and in the metering space 23c, the discharge conveying fluid is held under the pressure of the filler pump 10.

After emptying the metering space 23a of the metering chamber A and filling the metering space 23b of the metering chamber B with the condensed mixture, the chamber locks 7a-7c, 8a-i8c and the smaller diameters 20, 21 The closures 6c are actuated by the control device in the specified order and after a defined rotation of the chamber locks 7a-7c, 8a-8c, respectively. upon completion of the opening-closing operations of the closures 5a-5c, 6a-6c, the filler pump 10 begins to fill the metering space 23c of the metering chamber C, drain-conveyor flow stops.

For example, this switching operation may take place in the following order, where the sequential numbering also indicates the order in which the closing organs are operated.

In Step 1, the chamber latch 8c opens towards the connection lead 17c

In step 2, the chamber lock 7b closes towards the connecting lead 11b

6b Locking device lock

In step 3, the chamber lock 8b closes to the connection lead 17b

The chamber lock 8b opens towards the connection line 16b

In step 4, the chamber lock 7b opens towards the connecting line 12b

In step 5, the chamber lock 7a closes towards the connecting lead 12a

In step 6, the chamber lock 8a closes towards the connecting line 16a

The locking member 6a opens towards the connecting line 16a

In step 7, the chamber lock 7a opens towards the connection line 11a.

In the shifting operation, the closures can only be operated in the specified order, and the closures need to be operated such that after the completion of one-stroke operations, the next stroke operation begins.

After completion of the switching operation, the filling chamber 23c of the dosing chamber C is filled and the mixture is mixed, the dosing chamber 23b of the dosing chamber B is emptied and the flow in the dosing chamber 23a of the dosing chamber A stops.

Figure 5 is a longitudinal sectional view of the chamber lock according to the invention. The chamber lock has an open cylindrical housing 25 at one end. On the periphery of the housing 25 there is formed a guide opening 26 and an outlet opening 34, which are provided with the connection terminals 35, 36. The housing 25 is provided with a cylindrical, internally hollow rotor 28 rotatable about its longitudinal axis. The interior 29 of the rotor 28 is also open towards the open end of the housing 25. The periphery of the rotor 28 has an opening 30 communicating with the interior 29, which can be rotated by rotating the rotor 28 to cover the inlet 26 or the outlet 34 formed on the housing 25. The inner part 28 has an actuator, namely a drive shaft 31, which is sealed out of the housing 25. Further openings 32, 33 are formed on the casing 25 to form slit connection points, which can be provided with a connector 37.

Figure 6 is a cross-sectional view of the chamber lock shown in Figure 5. The figure shows that by rotating the rotor 28, the opening 30 of the rotor 28 can be covered either by the inlet 26 or by the outlet 34, or it can be closed in an intermediate position.

The chamber lock shown in Figure 5 in the position shown corresponds to the position of the chamber lock 8a of Figure 4. In this state, the opening 30 of the rotor of the chamber seal overlaps the inlet 26 of the housing 25 and consequently engages the conduit 16a and the dispensing space 23a connected to the open end of the chamber through said openings and interior. If the rotor 28 of the chamber lock shown in Figure 5 is driven by the drive shaft 31

Rotated by 180 458 pins 180 ° to obtain the position of the chamber lock 8b shown in Figure 4. In this position, the opening 30 of the rotor 28 overlaps the opening 34 of the housing 25 and thus the chamber lock connects the metering portion 23b to the connection conduit 17b.

The chamber lock is rotated an additional 90 ° to obtain the position of the chamber lock 8c of Figure 4. In this state, the chamber lock closes the dispensing space 23c from both the connection conduits 16c and 17c. The openings 32, 33 formed in the housing 25 as a slot water connection point are connected to the discharge side of the discharge pump 15 via a small diameter pipe 27 connected to the connection port 37. The pressurized slit water is bearing the rotor 28 and keeping the dirt 15 away.

The invention is not limited to the embodiment illustrated in the figure. Here, too, the dosing chamber may be horizontal and vertical, depending on the solid to be transported, the placement and size of the filter surface and the operation of changing the closures. However, the dosing chambers must at all times provide the "dosing" and "thickening" functions, drainage of liquid from the liquid compartment, back flushing of the filter surfaces, and equalization of the pressure between the filling and emptying using pressure. 30

Claims (2)

PATENT CLAIMS A chamber lock, preferably a compression chamber for a hydraulic conveyor, for selectively connecting the feed chamber of the conveyor to pipelines for transporting solid material particles and a liquid mixture by pipeline, characterized in that the chamber lock (7, 8) has an open cylindrical housing an inlet (26) and an outlet (34) being formed, the housing (25) having a cylindrical, internally hollow rotor (28) rotatable about its longitudinal axis, the interior of which (29) is open towards the open end of the housing (25); an aperture (30) on the periphery of the rotor (28) communicating with the interior (29), which is formed by rotation of the rotor (28) to cover the inlet (26) or outlet (34) formed in the housing (25); (28) actuator preferably having a drive shaft (31) sealed out of the housing (25) A chamber lock according to claim 1, characterized in that the periphery of the housing (25) is provided with an additional opening (32, 33) forming a slot water connection.