JPH02502214A - Equipment for transporting bulk materials - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] Equipment for transporting bulk materials The present invention transports bulk materials from a first container into a second container located downstream thereof. apparatus for transport, the containers comprising a transport channel member and a transport channel member. , a first slide member disposed subsequent to the first slide member in the transportation direction; and a second slide member, each slide member being opened from the open position. Can be moved laterally to the transport channel member up to the closed position and vice versa. It is now possible to

Conventionally, packet wheels have been used to transport bulk materials in batches. It is being However, they are complex in structure and wear out relatively quickly. be done. In addition, packet wheels have low operational safety, especially during high-temperature operation. It only has sex. For this reason, for example, the weight of a column of bulk material resting on it can be For this reason, pieces of coarse-grained bulk material are routed through the feed channel to the packet wheel area. Packed or captured at the entrance of the packet wheel, they close the packet wheel. block Also formed on the inner wall of the packet wheel housing during high temperature operation. The cake gets stuck in the packet wheel due to friction.

In addition, the pressure weir has a complicated structure, and the cake formed can cause The pipes frequently become blocked due to the weight of the bulk material column.

According to German patent DE-A-3034539, and transported from the reduction shaft furnace to the melter-gasifier, which is arranged in series. Batch means for bulk material to be transported (1&<, worm conveyor is known It is. This known batch means also has a very complex structure and is subject to wear and tear. There is a tendency for operational failures to occur due to the resulting cake. Furthermore, driving motors in dynamic equipment become overloaded relatively easily. Cantilever beam of screenie conveyor mounts further constitute a factor that causes failures.

Operational failures and damage occurring in known batch machines are described, for example, in the German patent DE-A - In plants according to No. 3034539, will it lead to suspension of the entire process? This should be avoided at all costs. Furthermore, these The dispensing means are often not well sealed with respect to adjacent spaces and thus The required pressure difference cannot be maintained between these spaces as much as possible. .

According to German patent DE-A-3311655, a slide for dissimilar solids The first type of device to be known was designed as a loose tubular material locking device. It is being This known locking device locks the transport channel member in the direction of transport. at least two slide members arranged in succession, these slides The members alternately open and close the transport channel members. Coarse-grained pieces of transported solids may fall off. to prevent it from being caught by the sliding member on the side wall of the lower shaft. , the first step facing the flow of bulk tubular material when it is in the closed position. The ride member leaves an opening in the fall shaft. This opening is the side chamber of the falling shaft. In this case, the lock plate may be provided inside the front rim of the slide member. Acts as a locking member to seal the side chamber. There, this concubine Serves only to accommodate the front rim of the ride member. In this case, the first slot It is difficult to provide sufficient leakage protection for a falling shaft closed by an inner member. It is. Furthermore, this known device is prone to failure. Because the first stage The material in which the locking plate, which acts as a locking member when closing the ride member, is transported This is because the load state is caused by the amount of water.

The present invention aims to solve these problems and difficulties, and provides a simple The structure has increased operational safety and guarantees sufficient pressure loss. In other words, a sufficient squeezing effect is ensured when adjacent containers are at different pressures. The purpose is to provide the first defined type of batch device.

According to the invention, this purpose is to transport bulk tubular material in batches in the transport channel member. The first part of the transport channel member is It enters a laterally offset batch chamber from which the transport chute is The second part of the channel member begins and the first slide member moves into the transport channel member. The first part is provided at the entrance to the batch chamber, and the second sliding member is provided at the entrance of the batch chamber. provided at the entrance to the second part of the feed channel member. .

A separate tube is transferred from the first part of the transport channel member to the second part of the transport channel member. When transporting the shaped material, the first slide member is in the open position and the second slide member is in the open position. The door member is in the closed position, so it is not possible to select the open position of the first slide member or to open the batch chamber. A quantity of bulk tubular material determined by the dimensions is transported into a batch chamber where an intermediate can be stored. The first slide member is switched from the open position to the closed position, and When the batch chamber is closed to the first part of the transport channel member, the batch The entrance to the second part of the transport channel member of the chamber is provided with the second slide member in the open position. Released by shifting and stored intermediately in the batch chamber The bulk tubular material is transported further. In this way, the number of slide members can be reduced. at least one is in the closed position during the entire transport process, thereby closing the transport channel. The first and second parts of the component are sealed together at all times and the transport channel Prevents undesired leakage of gaseous medium from one part of the element to the other be done.

The use of a sliding member as a locking means guarantees a high degree of operational security.

Because they are of simple construction and easy to drive.

Furthermore, since the slide member is self-cleaning, the slide member may be damaged due to cake formation. Blockage is prevented.

A preferred embodiment is such that the second part of the transport channel member is transported in the same direction as the batch chamber. Characterized by being offset laterally with respect to the first part of the feed channel member can be attached.

A particularly suitable embodiment is such that the parts of the transport channel member are arranged substantially vertically. and the at least first sliding member is aligned with the axis of the part of the transport channel member. It is characterized by being inclined towards the For this reason, the bulk cylindrical material is The first slurry caused by the weight of the bulk tubular material is The load on the side member is reduced.

An embodiment particularly suited for high operating temperatures is one in which the sliding members are parallel to each other. and the first slide member is guided over the second slide member. , One method 2 is characterized by the sliding member being guided on a guide member of a stationary structure. It will be done. For this reason, the temperature of the batching means increases, causing slight stress or bending moment on the solder. No expansion problems occur when the slide member is exposed.

An embodiment with particularly good sealing properties provides that the first sliding member has a free end It is characterized by having a recessed part on the upper side facing the first part of the transport channel part. can be attached. When the first slide member is closed, a conical deposit is formed in the recess. and sealing the batch chamber to the first part of the transport channel member. moreover, The recess is arranged in the batch chamber at the entrance area to the batch chamber when the first slide member is closed. in the wall of the first slide member or the loose tubular material resting thereon; This effectively reduces the friction that occurs between the seal end or seal surface.

A further preferred embodiment provides that the first sliding member transports the bulk tubular material and has a front surface oriented substantially perpendicular to the movement of the slide member; Therefore, it is characterized by the fact that a high degree of filling can be achieved in the batch chamber.

Advantageously, the first sliding member abuts a wall at the entrance to the batch chamber in the closed position. It has a sealing surface that makes the batch chamber particularly leak-tight.

Suitably, each slide member is provided with drive means independently of the drive means for the other slide member. Independent drive means are provided which can be driven.

The batching chamber according to the present invention includes a shaft furnace that directly reduces iron ore and a shaft furnace located downstream of the shaft furnace. The shaft furnace is provided with a melting and gasifying device placed on the outer peripheral surface of the shaft furnace. The plan is fluidly connected to the melt-gasifier through several batch means It is particularly well suited to

Due to the throttling effect of the batch means, the height of the shaft furnace structure is can be reduced compared to a conventional shaft furnace.

In the following, the invention will be explained in more detail with reference to exemplary embodiments shown in the drawings. It will be explained. Here, FIG. 1 includes a batch chamber whose cross section is illustrated. A cross section of a part of the metallurgical vessel is shown. Figure 2 represents the cross section along the line ■-■ in Figure 1. FIG. 3 also shows details of yet another embodiment in cross section. Figure 4 shows the Schematically illustrated plant equipped with batch means comprising a furnace and a melt-gasifier Indicates a runt.

According to FIG. 1, a batching means 3 is arranged in the lower region 1 of the first metallurgical vessel 2. . The chamfered bottom 4 and the cylindrical body 5 of the first container 2 are formed by a metal outer body 8.9. It has a lining 6.7 surrounded by. In the outer peripheral area of the bottom part 4, there is a The bulk cylindrical material 11 stored in the vessel 2 is transported in the transport direction indicated by the arrow 12. and into a second metallurgical vessel (not shown) located downstream thereof. A number of vertically oriented transport channel members 10 are provided. (One of them is shown in cross section in Figure 1).

In the transition region between the body 5 and the bottom 4 of the first container 2, the interior of the body lining 7 is The upper opening provided on the side surface 13 opens the transport channel indicated in the transport direction 12. The first part 14 of the flannel member 10 is formed. This of the transport channel member 10 A first part 14 is disposed downstream of the first part 14 and has a capacitor thereto. It is contained in a batch chamber 16 that is offset laterally with respect to the central axis 15 of the container, The batch chamber is located in the lining 7 of the bottom 4 of the first container 2. transportation In the inlet area of the first part 14 of the channel member 10, the lining 7 of the first container 2 is provided. forms the sealing end 17. A vertically oriented bar is provided downstream of the batch chamber 16. followed by an eve 18 which forms the second part of the transport channel member 10; The vibrator 18 preferably has a circular cross section, and the vibrator 18 is in contact with the bottom of the first container 2. It is continued. The vibrator 18 has a lining 20 surrounded by a metal body 19 and forming fluid connection with a second container (not shown).

A socket 21 protrudes beyond the cylindrical body 5 and is directed diagonally upward. 1 in the transition region between the cylindrical body 5 and the bottom 4 of the container 2. socket 21 includes a lining 23 surrounding the internal space 22, and a lining 23 surrounding the lining 23. It has a cylindrical metal body 24 with a cylindrical shape. The cylindrical metal body 24 is made of metal at the end. It is closed by a front plate 25, which includes an inner space 2 of the socket 21. An opening 26 corresponding to 2 is provided.

The cylindrical socket 21 is extended in the direction of the vertical axis 27 directed diagonally upward. A shaped pipe piece 28 is flanged to the front plate 25 and The piece 28 is provided with a lid 30 on the free end 29, and the internal space 22 of the socket 21 is For this reason, it is sealed from the outside. In the cross section, the internal cavity of the socket 21 The interspace 22 is laterally defined by an arcuate inner wall 31,32, and the lining 23 is The upper and lower regions are delimited by planar parallel internal walls 33.34. There is.

A planar inner wall 33 extending parallel to the longitudinal axis 27 of the socket 21 in the lower region is Because the ground plate 35 is placed stationary within the internal space 22 in this way, form the supporting surface of the The ground plate 35 is fixed to its upper surface 36 and Guide projections 37, 38 extending parallel to each other in the direction of the longitudinal axis 27 of the socket 21 A guide rail 39 having a U-shaped cross section is formed by forming a guide rail 39 having a U-shaped cross section. From the outer front side end 40 of the socket 21, the transport channel member 10 extends into the batch chamber 16 to the extent that it reaches the second part 18 of the batch chamber 16 . Here In this case, the free end 41 adjoins a support surface 42 provided on the lining 7 . transportation In the region of the channel member 10 extending above the second part 18, the entrance/exit An opening 43 is provided in the gland plate 35 for transporting the bulk tubular material 11. I get kicked.

Directly on the guide rail 39 in the internal space 22 of the socket 21 Two superimposed slide members 44 and 45 are installed, both of which are connected to the socket 21. The first slide member 4 on the upper side can be shifted in the direction of the vertical axis 27. The slide plate 46 of No. 4 is used for loading the first part 14 of the transport channel member 10. a second sliding member located at and downstream of the inlet 48 to the chamber 16; 45 slide plate 47 is the second slide plate 47 of the transport channel member 10 of the batch chamber 16. It is located at the entrance 49 to the part 18.

The guide rail 39 guides the slide plate 47 of the lower second slide member 45. The slide plate has on its underside 50 a guiding projection 37. A guide groove 51 that engages with 38 is provided.

The slide plates 47 of the second slide member 45 are arranged at inclined angles to each other. The cross section with a curved guide surface 52 has a roof-shaped upper side, which is connected to the corresponding slider. for the lower side of the slide plate 46 of the first slide member 44 having a doped surface 53. , forming a prism guide 54. Slide play of the second slide member 45 The upper part 55 of the socket 47 extends substantially parallel to the upper inner wall 34 of the socket 21. .

The slide plate 46 of the first slide member 44 faces the transport channel member 10. at the free end 56 facing the first part 14 of the transport channel member; 58 has a recess 57. of the slide plate 46 of the first slide member 44 At the free end 56 there is further provided a front surface 59 for transporting the bulk tubular material 11. , which is parallel to the longitudinal axis 27 of the socket 21, i.e. in a direction approximately perpendicular to the shift direction. It is directed towards. The slide plate 47 of the second slide member 45 faces the batch chamber. It has a slope 62 on the free end 60 on the upper side 61. 1st. Second Each slide plate of the slide members 44, 45) 46, 47 respectively has its outer end. At 63, 64, i.e. facing away from the transport channel member 10, the socket A drive rod 65,66 is arranged extending parallel to the longitudinal axis 27 of 21; Pressure medium cylinders 69, 70 each extending a drive rod 65, 66 The piston rods 67 and 68 are connected to each other. The piston rods 67 and 68 are M2 of each cylindrical pipe piece 28. The first . Cylinder housing 6 of the second pressure medium cylinder 69.70 9', 70'.

By driving the first pressure medium cylinder 69, the first slide member 44 To the batch chamber 16 of the first part 14 of the transport channel member 10 indicated by a solid line in the figure The transport channel member 1o, indicated by a dash-dotted line, is in the open position A with the inlet of the transport channel member 1o open. (here, the first sliding member 44 can now move (with its free end 56 reaching the batch chamber 16). and can be moved in the opposite direction. Similarly, the second pressure medium series The carrier 70 moves the second slide member 45 into the transport chamber of the batch chamber 16 indicated by a solid line. From the closed position B°, which closes the entrance 49 to the second part 18 of the channel member 1o, up to the open position A' in which the inlet 49 is opened, indicated by the dot-dashed line, and in the opposite direction. work to shift to

The mode of operation of the device will be explained in more detail below. From the first container 2, The bulk tubular material 11 is transported to a second container located downstream of the transport channel. The transport chamfer is conveyed via the first part 14 of the member 10 by the second slide member 45. It reaches into the batch chamber 16 which is closed to the second part 18 of the channel member 10 .

The amount of bulk cylindrical material 11 to be transported or the degree of filling of the batch chamber 16 is determined by the first slurry, respectively. The open position A of the guide member 44 allows the batch to be The degree to which the inlet 48 of the first part 14 of the channel member 1o is larger or smaller It can be held at any time. After this, driving the first pressure medium cylinder 69 , the first slide member 44 is moved to the closed position B, and here the slide member 44 is moved to the closed position B. A plate 46 extends into the batch chamber 16 with a free end 56 .

The thickness of the slide plate 46 of the first slide member 44 is determined by the clear run of the inlet 48. This makes the slide plate 46 and liner a little smaller. A gap 71 is formed between the seal end 17 of the plug 7 and the seal end 17 of the plug 7. Transport channel member 1 When the first part 14 of o is closed, the conical pile of loose cylindrical material slides This occurs in a recess 57 in the free end 56 of the plate 46, which is normally associated with a gap 71. forming a dynamic gas seal to the first part 14 of the transport channel member 10. This ensures sufficient leak-tightness of the batch chamber 16. The roughly concave portion 57 allows the tube to be shaped separately. The friction between the material 11 and the sealing end 17 is kept low so that the abrasive loose tubular material material is required to close the first slide member 44 without causing excessive wear. It is also possible to keep the driving force low. However, the thickness of the slide plate 46 The upper part of the slide plate 46 is sealed to the seal end 17 in the closed position B. Set the slide plate 46 so that it makes contact while maintaining the It is also possible to plan separately.

During the closing process, the front surface 59 provided on the free end 56 of the first sliding member 44 In addition to the bulk cylindrical material 11 that automatically flows into the batch chamber 16, further bulk The cylindrical material 11 is transported to the batching chamber 16, thereby being moved by the first slide member 44. Depending on the travel distance, the batch chamber 16 is filled more or less completely. be able to.

This also refers to the area 72 on the upper right hand side of the batch chamber 16 in FIG.

The inlet 48 of the first part 14 of the transport channel member 10 to the batch chamber 16 is connected to the first slurry. When closed by the guide member 44, the second slide member 45 closes the second pressure medium system. By driving the cylinder 70 in the opposite direction, it is moved to the open position A' and there Vibrator 1 forming the second part of transport channel member 10 in batch chamber 16 The entrance to 8 is asked. The loose cylindrical material 11 is placed in a piezo material placed under the first container 2. through the pipe 18 and into a downstream container (not shown).

When the batch chamber 16 is emptied, the second section of the transport channel member 10 of the batch chamber 16 An inlet 49 to the tool 18 drives a second pressure medium cylinder 70 into the second slide section. It is closed by shifting the material 45 to the closed position B°. After this, the transportation The inlet 48 to the first part 140 compartment 16 of the flannel member 10 is connected to the first slide member. The bulk cylinder is reopened by shifting 44 to the open position A and transported. A further charge of shaped material 11 reaches batch chamber 16 .

During the entire transport process, at least one of the two sliding members 44 or 45 , respectively in the closed position B or Bo, respectively, whereby the transport channel member 10 is The first part 14 and the second part 18 are kept well sealed from each other at all times, and the gas Unwanted leakage of media is prevented. Another advantage of this device is that the sliding section The material 44.45 is self-cleaning, thus avoiding cake formation. be.

Due to the inclined arrangement of the first slide member 44, it is difficult to drive the first slide member 44. Only very little force is required to This is because the bulk tubular materials being transported The feed 11 is automatically moved into the batch chamber 1 mostly by gravity when the inlet 48 is open. This is because it falls into 6. two slide members 44, 45 are guided parallel to each other; Since the first slide member 44 is guided on the second slide member 45, No expansion problem occurs when the temperature of the batching means 3 increases, and therefore it can be used under high temperatures. It is also easy to use batch means. Furthermore, the action on the slide member 44, 45 itself The resulting loads or bending moments are thus kept low.

According to the embodiment shown in FIG. 3, the slide plate 4 of the first slide member 44 6° is six times parallel to the vertical wall 73 of the first part 14 of the transport channel member 10. It has an aligned sealing surface 74 which is in the closed position B of the first slide member 44. It borders the wall 73 while maintaining a seal. This embodiment provides particularly good leak-tightness. guaranteed.

Preferred fields of application for batch means are shaft furnaces for the direct reduction of iron ore and their A process for producing steel as shown in FIG. It is to be used as a plant for A shaft furnace 75 is provided in the lower area. a transport duct 77 connected to the batching means 3; It is connected to a melting gasification device 76 via. The aperture effect of batching means 3 is When the cylindrical material is transported into the melt gasifier 76, the shaft furnace 75 and the melt gas This makes it possible to maintain the pressure difference that exists between the oxidizing device 76 and the oxidizing device 76. That is, Only a small amount of the gas produced in the melter gasifier 76 is transferred to the batch means 3. It may leak into the internal space of the shaft furnace 75 via the transport channel member. It is only possible.

A good leaktightness of the batch means also reduces the shaft height compared to known shaft furnaces. This leads to a reduction in plant construction costs. Batch method according to the present invention The particularly simple construction of the stages results in further cost savings. Extremely high operation of batch means The above security also guarantees lower operating system and maintenance costs. Ru.

The invention is not limited to the exemplary embodiments shown in the figures (subject to various considerations); It may be modified by For this purpose, other drive means, e.g. an adjusting spindle, are required. May be provided instead of a pressure medium cylinder for shifting the sliding member . Furthermore, only the first slide member is arranged at an angle, and the second slide member is placed horizontally. It is also possible to place it in

In this case, the first slide member is provided on the second slide member. guiding on a separate guide rail fixed to a stationary structure plate is possible. The first part and the second part of the transport channel member are also flush with each other. They can also be arranged in columns. Especially for high temperature bulk cylindrical materials, Is it appropriate to provide a slide plate with water cooling means in the front end area? Maybe.

international search report 111--^Strangely 1-k PCT/AT88/00091

Claims (1)

[Claims] 1. Inside the second container (76) located downstream from the first container (2, 75) In a device (3) for transporting bulk material (11), both containers (2, 7 5, 76) are interconnected by the transport channel member (10), and the first slide the first slide member (44) and the first slide member facing in the transport direction (12). The second slide members (45) are moved from the open position (A and A', respectively) to the closed position. (B and B', respectively) and transversely to the transport channel member in the opposite direction. The transport channel member (10) is Planned for two bahts for transporting cedar material in batches, and a transport channel. The first part (14) of the flannel member (10) is arranged offset laterally. chamber (16) and from this batch chamber the second part (10) of the transport channel member (10). 18) begins, and the first slide member (44) moves towards the transport channel member (10). provided at the entrance (48) to the batch chamber (16) of the first part (14); The sliding member (45) is the entrance (49) to the second part (18) of the batch chamber (16). equipment for transporting bulk materials, characterized by the fact that it is provided in . 2. The second part (18) of the transport channel member (10) is the same as the batch chamber (16). In one direction, laterally with respect to the first part (14) of the transport channel member (10). 2. A batching device according to claim 1, characterized in that it is offset. 3. The parts (14, 18) of the transport channel member are arranged so as to be almost vertical. and at least the first slide member (44) is part of the transport channel member. (14, 18) or the batch device described in 2. 4. The slide members (44, 45) are arranged parallel to each other, and The first slide member (44) is guided on the second slide member (45) and and the second sliding member (45) is guided on the stationary guide member (39). The dose according to one or more of claims 1 to 3, characterized in Device. 5. A first slide member (44) is arranged on the top facing the first part of the transport channel member. characterized by having a recess (57) in the free end (56) on the side (58); 5. A batch device as claimed in one or more of claims 1 to 4. 6. The first slide member (44) transports and slides the bulk material (11). having a front surface (59) oriented in a direction substantially perpendicular to the movement of the ride member; As claimed in one or more of claims 1 to 5, characterized in that batch equipment. 7. When the first slide member (44) is in the closed position (B), the batch chamber (16 ) having a sealing surface (74) abutting the wall (73) at the entrance (48) to the As claimed in one or more of claims 1 to 6, characterized in that Batch device (Figure 3). 8. Each slide member (44, 45) drives the other slide member (44, 45). Separate drive means (69, 70) that can be driven independently of the drive means (69, 70) 9, 70) is provided. is a batch device described in some. 9. Claims 1 to 8, wherein the shaft furnace (75) is arranged on the outer periphery of the shaft furnace. The molten gas can be melted via one or several batches (3) up to iron ore straight line, characterized by being fluidly connected to the oxidizer (76); A shaft furnace (75) for contact reduction and a melt-gasification device located downstream of the shaft furnace (75) (76) A plant containing.