A device for splitting briquette strings.

Abstract

The invention relates to an apparatus (6) for breaking up a briquette string (5), the briquette string (5) having a number of adjacently arranged (in the longitudinal direction (L)) connected briquette rows (5a), each of which has a number of adjacent briquette rows (5a) each of which has a number of briquettes (7) connected via a material web (8a, 8b), in particular for producing briquettes (7) made of direct reduced iron, the apparatus comprising a movable striker device (9) having a number of strikers (13) arranged next to each other and a feed device (10) capable of feeding the briquette string (5) to the striker device (9) in a conveying direction (T), the striker device (9) striking with its strikers (13) the briquette string (5) fed by the feed device (10) in such a way that, on the one hand, one briquette row (5a) is knocked off from the briquette string (5) and, on the other hand, this briquette row (5a) is divided into individual briquettes (7). The device is characterized in that the striking device (9) and the feeding device (10) are designed for splitting a briquette string (5) having a plurality of briquette rows (5a) each having at least three briquettes (7) arranged next to each other, and the striking device (9) has at least three striking devices (13) arranged next to each other. According to the invention, the feeding device has at least two noses arranged spaced apart next to each other, of which at least one of the noses is shaped and / or oriented in such a way that between this nose and the nose arranged next to it an interval is formed which increases in width in the working direction, through which the split briquettes are discharged.

Description

Technical Field

[0001] The present invention relates to a device for severing a briquette string. The briquette string has a number of briquette rows arranged one after another (in the conveying direction) and connected. Each briquette row has a plurality of briquettes connected via a material web side by side, and is particularly for the production of briquettes made of direct reduced iron. The device comprises a movable striker device having a plurality of strikers arranged side by side, and a supply device capable of supplying the briquette string to the striker device in the conveying direction. The striker device relates to a device that strikes the briquette string supplied by the supply device with the strikers such that, on the one hand, one briquette row or individual briquette rows arranged one after another are knocked off from the briquette string, and on the other hand, this briquette row or these briquette rows are each divided into individual briquettes.

[0002] Furthermore, the present invention relates to a facility for producing briquettes (such as direct reduced iron briquettes), particularly a facility for hot briquetting, which comprises a briquetting press capable of continuously producing a briquette string, and a device for severing the briquette string that advances from the briquetting press and is后置 to the briquetting press. This device for severing the briquette string is also referred to as a briquette separator or a briquette string severing machine.

[0003] Preferably, the apparatus or equipment relates to the production of briquettes made of directly reduced iron or DRI ("direct reduced iron"), which is also referred to as sponge iron or sponge iron. The briquettes are also referred to as hot briquetted iron or hot briquetted iron (HBI). The raw material is produced by the direct reduction of iron ore, and from this raw material, briquettes are produced in the equipment, specifically, preferably in one or more briquetting presses for hot briquetting. Such a briquetting press is formed, for example, as a roller press, which has, for example, two press rollers that rotate in opposite directions, and the circumferential surface or roller surface of the press rollers is provided with forming pockets or forming recesses, and as a result, a briquette string is formed as the material passes through the roller nip formed between the briquetting rollers, and the briquette string has a plurality of briquette rows that are adjacent to each other and extend in the conveying direction, and therefore in the longitudinal direction of the string, and a plurality of briquette rows that are adjacent to each other in the conveying direction, and the briquettes arranged in the rows and rows are connected by a material web. In order to separate the briquettes that are connected via the material web in the briquette string after the pressing process, a device that separates the briquette string, called an "individualization device," is connected downstream of the briquetting press. This individualization device, also called a separator, occupies a central position within the scope of the present invention.

[0004] The device for splitting a briquette string comprises at least one striker device having strikers, the striker device being, for example, formed as a rotationally driven striker wheel, or having such a striker wheel, the striker wheel having a number of striker rows, each having a plurality of strikers distributed around its circumference and arranged in a series. The device further comprises a feeder, by which the briquette string is supplied into the area of ​​the striker device, such a feeder is being, for example, formed as a feed trough or feed chute, or having such a feed trough or feed chute, so that the briquette string reaches the area of ​​the striker device from the briquetting press by gravity. The feeder (e.g., chute) has a striker edge on the end side extending laterally with respect to the briquette transport direction, so that, as a result, one end-side briquette row (i.e., one briquette bar) is knocked off the briquette string during the motion of the striker device having strikers. Furthermore, at least one nose is positioned in or within the area of ​​the supply device, the nose being positioned, for example, on or below the striking edge, and the nose separates the individual briquettes of each briquette row.

[0005] The feeding device may otherwise be equipped with additional clamps that press the briquette string supplied from the briquetting press against the feeding trough or feeding chute, thereby preventing the string from being lost or over-fed.

[0006] In practical use, briquetting presses (for hot briquetting) typically use surface tools with two side-by-side forming pockets, resulting in a briquette string with two side-by-side briquette rows; that is, each briquette row has two individual briquettes, which are joined to each other via a material web. Separation of such a briquette string is carried out by a separator of the form described, and in practical use, a separate nose is provided below the striking edge for separating both briquettes of a briquette row.

[0007] Overall, the components of such equipment and devices that break up briquette strings are subjected to high loads. In the case of hot briquetting, since hot briquetting is carried out at temperatures such as 250°C to 750°C, the components must withstand high temperatures.

[0008] Equipment for manufacturing briquets, equipped with a device for splitting a briquette string as described at the beginning, is known, for example, in Patent Documents 1 and 2. The striking device of the briquette string splitter is formed as a striking wheel, which interacts with a feeding device formed as a chute or guide rail, as described. The briquette string supplied from the press consists of two adjacent rows of briquets, that is, each individual row of briquets to be struck off consists of two adjacent rows of briquets. To individualize such rows of briquets struck off from the briquette string, the feeding device is provided with a separate nose, which splits the web in the middle of the briquette string.

[0009] An equivalent apparatus is described in Patent Document 3, in which a roller press has two briquetting rollers that interact in opposite directions, the briquetting rollers having a hollow shape corresponding to a briquette around the circumference, and producing two rows of briquette strings, the briquettes of the briquette strings being joined together by webs, which are individualized by a breaker, and both webs extending transversely to the longitudinal direction of the string and webs extending in the longitudinal direction of the string are crushed. The breaker, on the other hand, has a rotor, the rotor having a number of striking plates mounted around the circumference, the striking plates extending radially and having a void in the middle. When the breaker rotor rotates, the striking plates pass through the breaker nose at the void. The breaker nose supports the briquette string sliding down the chute from below in the middle, even after it has left the front edge of the chute. As a result, the briquette string rests on the front edge of the chute with a breaking edge that extends laterally relative to the longitudinal direction of the string, and on the breaker nose in the middle with a breaking edge that extends longitudinally along the string. The briquette string breaks at these breaking edges, thus generating individual briquettes.

[0010] The same applies to the equipment known in Patent Document 4, in which the briquette string has two rows arranged side by side, and as a result each individual briquette row consists of two briquettes, which are divided by a single breaker nose.

[0011] Equipment for briquetting, particularly for hot briquetting, in which a briquette string is divided into individual briquettes by an individualizing device, is further known in various embodiments in Patent Documents 5, 6, 7, 8, 9, and 10.

[0012] Patent document 11 describes, in other respects, a device for cutting plate-shaped HBI string grains, which comprises two rollers that interact with each other.

[0013] Another embodiment of a breaker or breaking device for briquetting is described in Patent Documents 12 and 13.

[0014] Known equipment for briquetting, particularly hot briquetting, as mentioned above, typically comprises a briquetting press, which produces a briquette string or material string having two adjacent rows of briquettes; that is, along the periphery of the roller press, the forming pockets are located in two adjacent circumferential rows, i.e., two forming pockets are arranged side by side on the periphery of the rollers. The production of briquettes using this type of equipment has been particularly demonstrated in practical use, for example, because impeccable individualization is achieved by the dividing device described at the beginning, in which the striking wheel interacts with the striking edge and individual nose of the supply trough.

[0015] In actual use, however, there is a need to improve production capacity and, therefore, optimize briquetting, particularly hot briquetting, from an economic standpoint. This is the starting point of the present invention. [Prior art documents] [Patent Documents]

[0016] [Patent Document 1] International Publication No. 95 / 09080 [Patent Document 2] International Publication No. 95 / 09079 [Patent Document 3] German Patent Application Publication No. 3507166 [Patent Document 4] German Patent Application Publication No. 2514703 [Patent Document 5] European Patent No. 3183371 Specification [Patent Document 6] US Patent No. 6352573 Specification [Patent Document 7] US Patent No. 5731272 Specification [Patent Document 8] US Patent No. 6340378 Specification [Patent Document 9] European Patent Application Publication No. 3760749 Specification [Patent Document 10] International Publication No. 2008 / 078936 [Patent Document 11] European Patent No. 2930452 Specification [Patent Document 12] US Patent No. 3300815 Specification [Patent Document 13] German Patent Application Publication No. 2200255 Specification

[0017] The underlying problem of the present invention is to provide a device for cutting a briquette string in the form described at the beginning, which has a simple structure and a trouble-free functional form and enables particularly economical production of briquettes, that is, a briquette separator.

[0018] To solve the above problems, the present invention provides, in the device in the form described at the beginning as described in the preamble, a striker device and a supply device which are formed for cutting a briquette string having a plurality of briquette rows each having at least 3 briquettes arranged side by side, the striker device having at least 3 strikers arranged side by side, the supply device having at least 2 nozzles arranged side by side, and at least one of the (plural) nozzles of the supply device being formed and / or oriented such that a gap widening in the working direction is formed between this nozzle and the nozzle arranged (directly) adjacent thereto, and the divided briquettes are taught to be discharged through this gap.

[0019] The present invention starts from the recognition that the economics of briquetting equipment can be improved if the briquetting press produces not just two rows of briquettes arranged side by side, but more than two rows of briquettes, i.e., at least three, for example four rows of briquettes, or a briquette string having at least four rows of briquettes. The capacity of the equipment is not simply increased by using more briquetting presses that produce briquette strings with, for example, two rows of briquettes in the conventional form, but rather by using a higher capacity, i.e., briquetting presses that produce at least three rows of briquettes, for example at least four rows of briquettes. Starting from this consideration, the briquette separator, i.e., the device that separates the briquette string, is configured to perform a flawless separation of this briquette string having multiple briquette rows, each having at least three briquets arranged side by side. For this purpose, both the striking device and the feeding device are optimized. This is because, in a preferred embodiment, the striking device has at least three striking elements arranged in a row, and the supply device has two or more noses, for example, on or below the striking edge, for dividing individual briquette rows formed by three briquettes having at least two webs between them, for example, four briquettes having at least three (longitudinal) webs between them.

[0020] The striker device is preferably (in a basically known form) formed as a rotationally driven striker wheel or has such a rotationally driven striker wheel. According to the invention, the striker wheel has a plurality of striker rows which are distributed around and each have at least three strikers arranged side by side. Alternatively, however, instead of a rotationally driven striker wheel, a striker device provided with, for example, a linearly movable striker element may be used, the linearly movable striker element having, for example, individual striker rows each having at least three strikers arranged side by side, and such a linearly operating striker element being reciprocated, for example, periodically in a linear direction, for example lifted and lowered. However, it is preferred to use a striker device having a rotationally driven striker wheel as mentioned above.

[0021] Within the scope of the invention, the increased number of strikers provided in the striker device and the increased number of noses, and thus projections, provided below the striking edge of the supply device are of particular importance. For this purpose, in a preferred development form, the invention proposes that the number n of strikers provided in the striker device (within one striker row) is greater by 1 than the number m of noses provided in the supply device, i.e. n = m + 1, where specifically n ≧ 3 holds.

[0022] Alternatively or additionally, the number n of strikers provided in the striker device is less than or equal to the number b of briquettes in the briquette row, i.e. n = b or n < b, where specifically b ≧ 3, for example b ≧ 4. Preferably, n = b holds.

[0023] Alternatively or additionally, the number m of noses provided in the supply device is less than the number b of briquettes in the briquette row, i.e. m < b, where specifically b ≧ 3, for example b ≧ 4.

[0024] In one variant of the present invention, the number of strikers n is equal to the number of briquettes b, and the number of noses m is 1 less than the number of briquettes b, i.e., n=b and m=b-1, and therefore m=n-1. In this variant, the number of briquettes b may be even or odd. In this variant, one striker is always assigned to each briquette in a row of briquettes, i.e., each briquette is struck by one unique striker. Furthermore, one nose is assigned to each material web between two adjacent briquettes in a row of briquettes, i.e., each material web in a row of briquettes is struck (directly) by the one nose assigned to that material web when cutting.

[0025] It is advantageous to ensure not only that the briquette is always perfectly separated, but also that the separated briquettes are always perfectly and unimpeded. For this purpose, in embodiments of the present invention, it is particularly preferable that at least one inner striker positioned between the outer strikers is capable of passing (directly) between two adjacent noses, so that each of the two adjacent noses is passed through by one striker. Thus, the perfect discharge of the briquettes is ensured, and more specifically, the perfect discharge of the inner briquettes positioned between the outer briquettes in one briquette row is ensured. One or more inner briquettes, after separation, not only fall (passively) through the area between the noses, but are also carried or guided through the intermediate chamber by at least one striker.

[0026] The first embodiment is set up for splitting a briquette string having, for example, three briquette rows, i.e., multiple briquette rows having three briquettes arranged side by side. In this case, the striking device has three striking elements, and the feeding device has two noses (arranged offset therefrom to it laterally), with one striking element assigned to each briquette in one briquette row, and one nose assigned to each material web positioned between two adjacent briquettes. In this first embodiment, each striking element therefore directly strikes an individual briquette, and the noses directly act on the briquette web positioned between them, resulting in perfect individualization.

[0027] A second embodiment of the present invention is configured for dividing a briquette string having, for example, four briquette rows, i.e., a plurality of briquette rows, each having four briquettes arranged side by side. The striking device has four striking elements, and the feeding device has three noses (arranged offset therefrom in the lateral direction), with one striking element assigned to each briquette in one briquette row, and one nose assigned to each material web positioned between two adjacent briquettes. In this second embodiment as well, the individual striking elements strike individual briquettes directly, as in the first embodiment, and the noses act directly on the briquette web positioned between them, resulting in excellent individualization. Each nose is positioned offset from the striking element in the lateral direction, i.e., lateral to the working direction.

[0028] The present invention can also be realized in the case of a briquette string having more than four briquette columns, where each briquette row thus has more than four briquettes arranged side by side, in which case the number of briquettes in a single briquette row may be even or odd.

[0029] For the flawless and economical operation of the equipment, in addition to high-speed and highly functional separation, the flawless discharge of individualized briquettes from the area of ​​the striking device is particularly important. In particular, it is desirable to avoid problems caused by snagging or clogging within the area of ​​the striking device. To this end, it is proposed that at least one of the at least two adjacent noses of the feeder be formed and / or oriented such that a gap widens in the working direction between this nose and the directly adjacent nose, through which the separated briquettes are discharged. This can be achieved, for example, by having at least one of the noses be obliquely oriented and / or having a thickness that tapers in the working direction. Preferably, at least two noses are each obliquely oriented and / or at least two noses have a thickness that tapers in the working direction. These at least two noses may, for example, be two directly adjacent noses. When a single briquette row has only three briquettes arranged in a row, preferably there are only two noses arranged in a row, and these noses are oriented, for example, diagonally in opposite directions to each other, to form a hopper-like widening space. Instead of diagonal orientation of the noses, the present invention also encompasses bent or curved orientations or configurations. Thus, when there are only two noses, the noses can be bent in opposite directions, resulting in a space that widens in the working direction. For example, in one embodiment having three noses, it is proposed that both outer noses of the plurality of arranged noses in a row of the feeder are formed and / or oriented such that a gap is formed between each outer nose and the inner nose arranged next to it that widens in the working direction, through which divided or individualized briquettes are discharged. This is achieved, for example, by the outer noses being oriented diagonally (or bent) and / or having a thickness that tapers in the working direction.The oblique (or curved) orientation and / or tapered thickness thus create a gap between the noses that widens in the working direction, resulting in a widening space (e.g., hopper-shaped) in the working direction for the discharge of individual briquettes.

[0030] Further advantages are achieved by the preferred arrangement of the noses in the working direction. Thus, it is proposed that, optionally, of a plurality of noses arranged side by side, one or more noses are offset in the working direction relative to one or more other (e.g., adjacent) noses. Thus, (particularly in the case of at least three noses), there is the possibility of positioning the inner, for example, central nose behind or in front of the adjacent outer nose, offset downward in the working direction, or offset upward in the working direction. Thus, the noses may be positioned such that when the side by side strikers strike the briquette string, the outer briquettes are separated first through the forward-positioned outer noses, and then, immediately afterward, the two middle briquettes are separated by the rearward-positioned or set-back nose. This also avoids malfunctions due to briquette snagging or jamming. In this embodiment, the central or middle nose is therefore positioned below the outer noses by a predetermined amount. In an alternative embodiment, a central nose may be positioned forward, so that when the adjacent strikers collide, the central web is separated first, and only then are both outer webs separated.

[0031] In one embodiment in which the central nose is omitted, the (outer) noses provided only on both sides are preferably positioned at the same height.

[0032] Special arrangements of the noses, and in particular diagonal and / or offset arrangements, are especially advantageous in embodiments in which one nose is assigned to each web, resulting in relatively small spacing between all the noses.

[0033] Alternatively or supplementary to the diagonal and / or offset arrangement of one or more noses, briquette discharge may be ensured or improved by ensuring that each of two adjacent noses is passed by a single striker during operation. The apparatus is therefore configured such that at least one inner striker positioned between the outer strikers passes (directly) between adjacent noses during operation.

[0034] In other words, the present invention relates not only to the dividing device or separator described, but also to equipment for manufacturing briquettes, which comprises such a separator. The equipment comprises at least one briquetting press, in particular a hot briquetting press, for continuously manufacturing at least one briquette string of the described form, each having at least three, for example, three or four briquettes (or more than four briquettes) in each briquette row. The equipment further comprises at least one dividing device of the described form, which is located behind the briquette press, for example below the briquette press, and is used to divide the briquette string as it emerges from the briquetting press. The dividing device essential to the present invention is therefore protected as a component of the briquetting equipment and therefore in combination with the assigned briquetting press.

[0035] Preferably, the present invention relates to briquetting of materials at high temperatures, and therefore to hot briquetting. Particularly preferably, the present invention relates to hot briquetting of direct reduced iron, and therefore to the production of HBI (hot briquetted iron). However, the present invention can also be used for briquetting from other materials or for splitting briquette strings made of other materials.

[0036] The present invention will be described in detail below with reference to the drawings, but the drawings are merely illustrations of examples. [Brief explanation of the drawing]

[0037] [Figure 1] This is a simplified side view showing the equipment used to manufacture briquettes. [Figure 2] This diagram shows the briquette-cutting device extracted from the equipment shown in Figure 1. [Figure 3] Figure 2 is a side view showing the periphery of the striking device in the first embodiment of the object shown. [Figure 4A] Figure 3 shows a vertical cross-sectional view AA of the object. [Figure 4B] Figure 3 shows a vertical cross-sectional view BB of the object. [Figure 5] This figure shows a second embodiment of the present invention. [Figure 6A] Figure 5 shows a vertical cross-sectional view CC of the object. [Figure 6B] Figure 5 is a vertical cross-sectional view DD of the object shown. [Figure 7] This figure shows a third embodiment of the present invention. [Figure 8] Figure 7 is a simplified perspective view of the object shown.

[0038] Figure 1 shows a briquetting apparatus, and therefore an apparatus for manufacturing briquettes, which is specifically for hot briquetting. The apparatus comprises a briquetting press 1, which has two briquetting rollers 2 that rotate in opposite directions, and the surfaces of the briquetting rollers 2 are provided with forming pockets 3 for shaping briquettes. A briquette string 5 advances continuously from the roller nip 4 of the briquetting press, and the briquette string 5 is subsequently divided in a dividing device 6 located behind the briquetting press 1, i.e., the briquette string is divided into individual briquettes 7. This dividing device 6, which is a component of the apparatus shown in Figure 1, is shown in detail in Figures 2 to 8.

[0039] The briquetting press 1 is formed within the scope of the present invention for the production of a briquette string 5, wherein the briquette rows 5a of the briquette string 5, arranged sequentially in the longitudinal direction L, each have at least three, preferably at least four, briquettes 7 arranged side by side. For this purpose, the roller 2 of the briquette press 1 is provided with a number of rows 3a of forming pockets 3 around its circumference, each row 3a having, in this embodiment, four forming pockets 3, and as a result, the briquette string 5 shown in Figure 8, for example, is produced, which consists of four briquette rows 5b extending in the longitudinal direction L and a number of briquette rows 5a (each having, for example, four briquettes 7 arranged side by side) arranged sequentially in the longitudinal direction L, the sequentially arranged briquette rows are joined by transverse webs 8a, i.e., transverse webs, and the sequentially arranged briquettes 7 of each briquette row 5a, and therefore the briquette rows 5b of the string 5, are also joined by longitudinal webs 8b.

[0040] The splitting or individualizing device 6 for dividing the briquette string 5, in this embodiment, consists on the one hand of a movable striker device 9 and on the other hand of a supply device 10, and the briquette string 5 can be supplied into the area of ​​the striker device 9 in the transport direction T via the supply device 10 (see, for example, Figure 2). The striker device 9, in this embodiment, comprises a rotationally driven striker wheel 11, which is distributed around its circumference and has a number of striker rows 12, each of which has a number of strikers 13 arranged in a row. The rotating striker wheel 11 strikes the supplied briquette string 5 with the strikers 13 such that, on the one hand, one briquette row 5a is knocked off the briquette string 5, and on the other hand, this briquette row 5a is divided into individual briquettes 7. In this invention, on the one hand, the striking device 9 and / or the other hand, the feeding device 10 are formed for dividing a briquette string 5 having four briquette rows 5b arranged in a row, and thus having a plurality of briquette rows 5a arranged in a row and each having at least four briquettes 7 arranged in a row. In the illustrated embodiment, both the striking device 9 (i.e., the striking wheel 11 in particular) and the feeding device 10 are adapted to the shape of a briquette string 5 having, for example, four briquettes 7 arranged in a row. For this purpose, the striking device 9 or the striking wheel 11 has at least three striking elements 13 arranged in a row. In the illustrated embodiment, there are three or four striking elements 13 arranged in a row. Further details will be discussed. The feeding device 10 is basically in a known form and has a striking edge 14 at the end for striking down the briquette rows 5a. This is because the feeding device is formed as a material chute or has such a material chute 15. Furthermore, the supply device 10 may have a retainer (not shown) that presses the briquette string 5 against the chute 15 to prevent missed or double feeding.The end of the material chute 15 forms a striking edge 14, through which the briquette row 5a is struck down by the rotating striking wheel 11, and as a result, the briquette bar, as the briquette row 5a, is separated. In this invention, a plurality of noses 16 or projections are provided within or below the striking edge 14, specifically, so that the briquette row 5a is broken and separated into individual briquettes 7 during the course of the striking by the striking wheel 13 on the briquette row 5a being separated. The action of the striking wheel 13 on the end of the briquette string 5 thus separates the transverse web 8a between the briquette rows 5a at the striking edge 14 on the one hand, and the longitudinal web 8b between the individual briquettes 7 of one briquette row 5a at the noses 16 on the other hand.

[0041] In the illustrated embodiment, the number n of strikers 13 provided in the striker device 9 is 1 greater than the number m of noses 16 provided in the corresponding supply device 10, i.e., n = m + 1, where specifically in this embodiment, n = 3 or n = 4.

[0042] In the illustrated embodiment, the number n of strikers 13 provided in the striker device 9 is equal to the number b of briquettes 7 in each briquette row 5a, i.e., n=b. ​​The number m of noses 16 provided in the supply device 10 is 1 less than the number b of briquettes 7 in the briquette row 5a, i.e., m=b-1. b≧3 or b≧4 holds. Figures 3 to 6B show an embodiment where b=4, and accordingly m=3. Figures 7 and 8 show an embodiment where b=3, and accordingly m=2. b may therefore be even or odd. Always (preferably), each briquette in a briquette row is assigned one separate striker 13, and each material web 8b between two adjacent briquettes in a briquette row is assigned one separate nose 16.

[0043] Starting from these general considerations regarding scale, Figures 3, 4A, and 4B, on the one hand, and Figures 5, 6A, and 6B, on the other hand, show two embodiments in which the striker device 9 has a number of rows 12, each having four strikers 13, while the feed device 10 has three noses 16 arranged in a row. In these embodiments, the strikers 13 of one striker row 12 are assigned one to each briquette 7 of one briquette row 5a. Each individual nose 16 is assigned one to each material web, i.e., one to each longitudinal web 8b within one briquette row 5a, i.e., one to each longitudinal web 8b between two adjacent briquettes 7 within one briquette row 5a. Thus, in these figures, it can be seen that, as the striking wheel 11 rotates, one striking row 12 having four striking elements 13 arranged in a row strikes one briquette row 5a having four briquettes 7, specifically striking three noses 16 located below the striking edge 14, resulting in the individualization of this briquette row 5a. The same applies to the embodiments shown in Figures 5, 6A, and 6B.

[0044] On the one hand, the embodiment shown in Figure 3 (or 4A, 4B) and on the other hand, the embodiment shown in Figure 5 (or Figures 6A and 6B) differ in the arrangement of the three noses 16 along the working direction R. Please refer to these figures for details. In the embodiment shown in Figure 3 (or 4A, 4B), both outer noses 16 are positioned in front of the central, inner nose 16 in the working direction R, that is, the inner nose 16 is positioned behind the outer nose 16 in the working direction, and therefore it can be seen that it is positioned lower than the outer nose by a predetermined amount. This can also be seen by comparing Figures 4A and 4B, where one of the outer noses can be seen in Figure 4A, and the central nose lowered relative to the outer nose can be seen in Figure 4B.

[0045] In contrast, in the embodiment shown in Figure 5 (or 6A, 6B), the outer nose 16 is lower than the inner nose 16, meaning the middle nose is positioned in front of the outer nose and therefore higher. This can also be seen by comparing Figures 6A and 6B, where Figure 6A shows one of the outer noses and Figure 6B shows the middle nose.

[0046] In other respects, the embodiments shown in Figures 3, 5, and 6A, B feature a special orientation of the outer noses 16. This is because these outer noses 16 or their inner guide surfaces are oriented at an angle, resulting in a gap X between the outer noses 16 and the inner noses 16 that widens in the working direction R, through which the divided briquettes 7 are discharged. In particular, the combination of this inclined position on the one hand and the offset arrangement on the other hand provides sufficient intermediate chambers between the noses 16, allowing for the flawless discharge of individual briquettes 7 through these intermediate chambers without snagging or clogging that would lead to equipment downtime. The noses 16 themselves may be inclined (or bent / curved), or each nose 16 may have an inclined (or bent / curved) guide surface (inner). The guide surface may be realized, for example, by having the nose 16 itself have an uneven thickness and be tapered in the working direction or the conveying direction.

[0047] Figures 7 and 8 show another particularly preferred embodiment of the present invention, comparable in terms of its basic structure and function to the embodiments already described. This apparatus, however, is designed for splitting a briquette string having multiple briquette rows, each having three briquettes 7 arranged in a row. The striking device 9 has three striking elements 13, and the feeding device 10 has two noses 16, with the striking elements 13 assigned one to each briquette 7 in one briquette row 5a, and the noses 16 assigned one to each material web 8b positioned between two adjacent briquettes 7. In this embodiment as well, both noses 16 are formed or oriented such that a gap X is formed between them, widening in the working direction R, through which the split briquettes are discharged. In one illustrated embodiment, both noses 16 are tilted obliquely in opposite directions, resulting in the formation of a widening gap X. In this embodiment, the advantages already mentioned in reference to other embodiments are achieved. Alternatively, however, the nose 16 may not be completely angled (or alternatively, bent / curved in the opposite direction), but each may have one inner, angled or bent guide surface, which may be realized, for example, by the nose itself having a non-uniform thickness and tapering in the conveying or working direction.

[0048] Instead of the oblique orientation of the nose as shown in the illustration, a bent or curved configuration of the nose is also understood. What is always important is that the configuration and / or orientation of multiple noses (or at least one nose) creates widening space for the briquette in the conveying direction.

[0049] In other respects, it can be seen in the drawings that in all embodiments, the strikers 13 and noses 16 are realized and positioned such that at least one inner striker positioned between the outer strikers is passable between two adjacent noses, and therefore passes through during operation. Thus, in the embodiments shown in Figures 3 and 5, for example, it is ensured that the intermediate chamber between each pair of adjacent noses 16 is passed through by one of the inner strikers 13 positioned between both outer strikers 13. The inner briquettes 7 of one briquette row 8b are therefore passed between the noses with the help of the inner strikers 13, rather than simply falling through the intermediate chamber between the central nose and each of the outer noses 16. This improves or ensures briquette discharge. The same applies to the embodiment shown in Figure 7, for there too, both adjacent noses are passed through by a single striker.

[0050] In the case of a briquette string having multiple briquette rows, each having three briquettes arranged in a row, an alternative to the embodiments of the present invention described above would be an embodiment having essentially only two strikers and two noses. In this case, both strikers would be assigned to both outer briquettes, and both noses would be assigned to both material webs. In such an embodiment, one striker would not travel through the two adjacent noses to carry the middle briquette, but the middle briquette would fall through between the two adjacent noses. Compared with such an embodiment having only two strikers, an embodiment of the present invention in which two adjacent noses are traveled by one striker is particularly preferred, as it ensures improved briquette discharge.

[0051] The striker wheel 11 is basically formed as a rotor or striker rotor in a known form, and more specifically, it is formed having striker rows 12 each having three or four strikers 13 as described. Each individual striker 13 consists of a holder 13a or retaining projection integrally molded with the striker wheel 11 and a striker plate 13b connected to the retaining projection 13a, the striker plate 13b being detachably attached to the retaining projection 13a, for example by screws, and as a result the striker plate 13b being replaceable as a wear part. This is known in the prior art. Within the scope of the present invention, the nose 16 may also be replaceable as a wear part.

[0052] In other words, within the scope of the present invention, multiple strikers 13 arranged within a single striker row 12, and therefore their striking plates 13b, may have different widths from one another. Thus, if there are only three strikers 13, there is a possibility that the middle striker 13 may be wider or narrower than both of the outer strikers 13.

[0053] The drawings always show embodiments in which one striker 13 is assigned to each briquette and one nose 16 is assigned to each web 8b between two briquettes. The present invention, however, also encompasses embodiments not shown in which additional briquettes, strikers, or noses are provided in modified embodiments and / or orientations in addition to the briquettes visible in the drawings. For example, there may be an additional area in which the strikers 13 are not directly assigned to a briquette, in which case the strikers may be assigned to a briquette pair by, for example, having the strikers work together on two briquettes arranged side by side, and thus striking the web or separation between two adjacent briquettes. In addition to the symmetrical arrangement of the apparatus shown in the drawings, there may therefore be additional, asymmetrical configurations of further strikers and / or further noses not configured as described.

[0054] At all times, at least one nose is provided, which is configured or oriented to reduce the risk of snagging of briquets assigned to the nose, for example, by being angled. In general, the idea of ​​the present invention can also be expressed as follows: (a) when one striker is assigned to one briquette, and (b) when one nose is assigned to each of the two webs for this briquette, and further when either (a) or (b) of these conditions is not true with respect to at least one briquette adjacent to this briquette, the nose located on this side is formed and / or oriented in the manner of the present invention, and therefore, for example, is tilted at an angle, thereby reducing the risk of snagging for this briquette. Furthermore, while this application relates to the invention described in the claims, it also includes the following additional aspects. 1. A device (6) for splitting a briquette string (5), wherein the briquette string (5) has a number of briquette rows (5a) arranged in succession (in the longitudinal direction (L)) and connected, and each briquette row (5a) has a number of briquettes (7) arranged in succession and connected via material webs (8a, 8b), and is particularly for the production of briquettes (7) made of direct reduced iron. A movable striker device (9) having multiple strikers (13) arranged in a row, A supply device (10) capable of supplying the briquette string (5) to the striking device (9) in the transport direction (T), Equipped with, The striking device (9) strikes the briquette string (5) supplied by the supply device (10) with the striking element (13) such that, on the one hand, one briquette row (5a) is knocked off the briquette string (5), and on the other hand, this briquette row (5a) is divided into individual briquettes (7). The supply device (10) has, at its end, a striking edge (14) for knocking down the briquette row (5a), and on or below the striking edge (14) a nose (16) for dividing the briquette row (5a) into individual briquettes (7). In apparatus (6), The striking device (9) and the supply device (10) are formed for dividing a briquette string (5) having a plurality of briquette rows (5a) each having at least three briquettes (7) arranged in a row, The striking device (9) has at least three striking elements (13) arranged in a row, and the supply device (10) has at least two noses (16) arranged in a row spaced apart, Of the plurality of noses (16) of the supply device (10) arranged side by side, at least one of the noses (16) is formed and / or oriented such that a gap (X) is formed between this nose (16) and the adjacent nose (16) that widens in the working direction (R), and the divided briquettes are discharged through the gap (X). A device for cutting briquette strings, characterized by the following features. 2. The apparatus according to the 1 above, characterized in that at least one of the noses (16) is oriented at an angle or bent and / or has a thickness that tapers in the working direction (R). 3. The apparatus according to 1 or 2, characterized in that at least two noses (16) arranged side by side (in direct proximity) are each oriented at an angle or bent and / or have a thickness that tapers in the working direction (R). 4. The apparatus according to the 2 or 3 described above, characterized in that the number (n) of the strikers (13) provided in the striker device (9) is 1 greater than the number (m) of the noses (16) provided in the supply device (10), i.e., n = m + 1, where n ≥ 3. 5. The number (n) of the strikers (13) provided in the striker device (9) is equal to the number (b) of the briquettes (7) in the briquette row (5a), i.e., n = b, where b ≥ 3, for example b ≥ 4. and / or The number (m) of the noses (16) provided in the supply device (10) is 1 less than the number (b) of the briquettes (7) in the briquette row (5a), i.e., m = b - 1, where b ≥ 3, for example b ≥ 4. A device characterized by any one of the above 1 to 4. 6. The apparatus of the above 5, characterized in that one nose (16) is assigned to each material web (8b) between two adjacent briquettes (7) in one briquette row (5a). 7. The striking device (9) is formed as a rotationally driven striking wheel (11) or has such a striking wheel (11), and the striking wheel (11) has a plurality of striking rows (12) each having at least three striking elements (13) distributed around the circumference and arranged in a row, any one of the devices from 1 to 6 above. 8. Any one of the devices described in 1 to 7 above, characterized in that at least one inner striker (13) positioned between outer strikers (13) is capable of passing between two adjacent noses (16). 9. Any one of the devices described in 1 to 8 above, for dividing a briquette string (5) having a plurality of briquette rows (5a) each having three briquettes (7) arranged in a row, wherein the striking device (9) has three striking elements (13), and the feeding device (10) has two noses (16), wherein one striking element (13) is assigned to each briquette (7) in one briquette row (5a), and one nose (16) is assigned to each material web (8b) positioned between two adjacent briquettes (7). 10. Any one of the devices described in 1 to 8 above, for dividing a briquette string (5) having a plurality of briquette rows (5a) each having four briquettes (7) arranged in a row, wherein the striking device (9) has four striking elements (13), and the feeding device (10) has three noses (16), wherein one striking element (13) is assigned to each briquette (7) in one briquette row (5a), and one nose (16) is assigned to each material web (8b) positioned between two adjacent briquettes (7). 11. Any one of the devices described in 2 to 10 above, wherein the supply device (10) has a plurality of noses (16) arranged in a row, for example, three noses (16) arranged in a row, the outer noses (16) are formed and / or oriented such that a gap (X) is formed between each outer nose (16) and the inner nose (16) arranged next to it, which widens in the working direction (R), and the divided briquettes (7) are discharged through the gap (X). 12. The apparatus of 11, characterized in that the outer noses (16) are each oriented at an angle and / or have a thickness that tapers in the working direction (R). 13. One of the devices described in 1 to 12 above, characterized in that, among a plurality of noses (16) arranged in a row, one or more noses (16) are offset in the working direction (R) relative to one or more other noses (16). 14. The apparatus of 13, characterized in that, among three noses (16) arranged in a row, for example, the inner, for example, central nose (16) is positioned behind or in front of the outer nose arranged next to it in the working direction (R). 15. Equipment for manufacturing briquettes, At least one briquetting press (1), particularly a hot briquetting press, capable of continuously producing at least one briquette string (5), A device (6) for cutting the briquette string (5) that has advanced from the briquette press (1), which is positioned behind the briquette press (1), is one of the devices (1 to 14) described above. Equipment for manufacturing briquettes, equipped with the necessary components.

Claims

1. A device (6) for splitting a briquette string (5), wherein the briquette string (5) has a number of briquette rows (5a) arranged in succession (in the longitudinal direction (L)) and connected, and each briquette row (5a) has a number of briquettes (7) arranged in succession and connected via material webs (8a, 8b), and is particularly for the production of briquettes (7) made of direct reduced iron. A movable striker device (9) having multiple strikers (13) arranged in a row, A supply device (10) capable of supplying the briquette string (5) to the striking device (9) in the transport direction (T), Equipped with, The striking device (9) strikes the briquette string (5) supplied by the supply device (10) with the striking element (13) such that, on the one hand, one briquette row (5a) is knocked off the briquette string (5), and on the other hand, this briquette row (5a) is divided into individual briquettes (7). The supply device (10) has a striking edge (14) at its end for knocking down the briquette row (5a), and has a nose (16) on or below the striking edge (14) for dividing the briquette row (5a) into individual briquettes (7). In apparatus (6), The striking device (9) and the supply device (10) are formed for dividing a briquette string (5) having a plurality of briquette rows (5a) each having at least three briquettes (7) arranged in a row, The striking device (9) has at least three striking elements (13) arranged in a row, and the supply device (10) has at least two noses (16) arranged in a row spaced apart, Of the plurality of noses (16) of the supply device (10) arranged in a row, at least one of the noses (16) is formed and / or oriented such that a gap (X) is formed between this nose (16) and the adjacent nose (16) that widens in the working direction (R), and the divided briquettes are discharged through the gap (X). A device for cutting briquette strings, characterized by the following features.

2. The apparatus according to claim 1, characterized in that at least one of the noses (16) is oriented at an angle or bent and / or has a thickness that tapers in the working direction (R).

3. The apparatus according to claim 2, characterized in that at least two noses (16) arranged side by side (in direct proximity) are each oriented at an angle or bent and / or have a thickness that tapers in the working direction (R).

4. The apparatus according to claim 2 or 3, characterized in that the number (n) of the strikers (13) provided in the striker device (9) is 1 greater than the number (m) of the noses (16) provided in the supply device (10), i.e., n = m + 1, where n ≥ 3.

5. The number (n) of the strikers (13) provided in the striker device (9) is equal to the number (b) of the briquettes (7) in the briquette row (5a), i.e., n = b, where b ≥ 3, for example b ≥ 4. and / or The number (m) of the noses (16) provided in the supply device (10) is 1 less than the number (b) of the briquettes (7) in the briquette row (5a), i.e., m = b - 1, where b ≥ 3, for example b ≥ 4. The apparatus according to any one of claims 1 to 3, characterized in that

6. The apparatus according to claim 5, characterized in that one nose (16) is assigned to each material web (8b) between two adjacent briquettes (7) in one briquette row (5a).

7. The apparatus according to any one of claims 1 to 3, wherein the striking device (9) is formed as a rotationally driven striking wheel (11) or has such a striking wheel (11), and the striking wheel (11) has a plurality of striking rows (12) each having at least three striking elements (13) distributed around the circumference and arranged in a row.

8. The apparatus according to any one of claims 1 to 3, characterized in that at least one inner striker (13) positioned between outer strikers (13) is passable between two adjacent noses (16).

9. The apparatus according to any one of claims 1 to 3, wherein for dividing a briquette string (5) having a plurality of briquette rows (5a) each having three briquettes (7) arranged in a row, the striking device (9) has three striking elements (13), and the supply device (10) has two noses (16), wherein one striking element (13) is assigned to each briquette (7) in one briquette row (5a), and one nose (16) is assigned to each material web (8b) positioned between two adjacent briquettes (7).

10. The apparatus according to any one of claims 1 to 3, wherein for dividing a briquette string (5) having a plurality of briquette rows (5a) each having four briquettes (7) arranged in a row, the striking device (9) has four striking elements (13), the feeding device (10) has three noses (16), the striking elements (13) are assigned one to each briquette (7) in one briquette row (5a), and the noses (16) are assigned one to each material web (8b) positioned between two adjacent briquettes (7).

11. The apparatus according to claim 2 or 3, wherein of the supply device (10), of a plurality of noses (16) arranged in a row, for example, three noses (16) arranged in a row, the outer noses (16) are formed and / or oriented such that a gap (X) is formed between each outer nose (16) and the inner nose (16) arranged next to it, which widens in the working direction (R), and the divided briquettes (7) are discharged through the gap (X).

12. The apparatus according to claim 11, characterized in that the outer noses (16) are each oriented at an angle and / or have a thickness that tapers in the working direction (R).

13. The apparatus according to any one of claims 1 to 3, characterized in that, among a plurality of noses (16) arranged in a row, one or more noses (16) are offset in the working direction (R) relative to one or more other noses (16).

14. The apparatus according to claim 13, characterized in that, of three noses (16) arranged in a row, for example, the inner, for example, central nose (16) is positioned behind or in front of the outer nose arranged next to it in the working direction (R).

15. Equipment for manufacturing briquettes, At least one briquetting press (1), in particular a hot briquetting press, capable of continuously producing at least one briquette string (5), At least one device (6) for cutting the briquette string (5) that has advanced from the briquette press (1), which is positioned behind the briquette press (1), according to any one of claims 1 to 3, Equipment for manufacturing briquettes, equipped with the necessary components.

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