CN101678972A

CN101678972A - Method for mixing iron and steel raw material

Info

Publication number: CN101678972A
Application number: CN200880019611A
Authority: CN
Inventors: 尹基喆; 高永熏; 金明植
Original assignee: Hyundai Steel Co
Current assignee: Hyundai Steel Co
Priority date: 2007-12-24
Filing date: 2008-11-27
Publication date: 2010-03-24
Anticipated expiration: 2028-11-27
Also published as: CN101678972B; WO2009082093A3; KR20090069137A; KR101003272B1; WO2009082093A2

Abstract

A method for mixing iron and steel raw material includes a process of stacking a raw material that forming a raw material pile by sequentially stacking a first raw material mixture block and a secondraw material mixture block formed by discharging raw materials from a plurality of bins and mixing the raw materials and a process of mixing raw materials that separates and mixes a portion of the first raw material mixture block with a portion of the second raw material mixture block at a side of the raw material pile that is stacked by the process of stacking a raw material pile, in which a plurality of raw material piles are stacked in series by repeating the process of stacking a raw material pile such that a portion, where an angle of repose is created, of any one raw material pile coversa portion, where an angle of repose is created, of the next raw material pile.

Description

The method that is used for mixing iron and steel raw material

Technical field

[0001] the present invention relates to a kind of method that is used for mixing iron and steel raw material, more specifically, relate to a kind of method of in less space, effectively piling up the raw mix that comprises plurality of raw materials.

Background technology

[0002] common, except iron ore, also use plurality of raw materials as the used raw material of system iron, the performance that these raw materials are used for removing the impurity of molten metal and determine iron.

[0003] depends on the kind of the iron that will produce, use by predetermined ratio and mix the raw mix that plurality of raw materials constitutes.

[0004] according to the method for above-mentioned mixed material, setting and the corresponding feed bin of raw material type quantity then, will take out from each feed bin with the plurality of raw materials of the corresponding quantity of blending ratio, and mix for use to store raw material.

[0005] yet, because the system Tie Tong often need mix ten to 14 kinds or more kinds of raw material, just should prepare and make the corresponding feed bin of quantity of the raw materials used kind of iron, thereby, have the problem in the higher and space that needs are bigger of cost.

[0006] in addition, even be provided with and the corresponding feed bin of the quantity of present employed raw material type, but when increasing raw material, still need extra feed bin for the performance of improving iron.In addition,, then feed bin can't be installed, and should design new device and be used for mixed material if it is not enough to be used to install the space of feed bin.

Summary of the invention

Technical matters

[0007] the objective of the invention is, a kind of method that is used for mixing iron and steel raw material is provided, this method can effectively be mixed plurality of raw materials in less space, and improves the availability of raw material pile.

Technical scheme

[0008] according to a kind of method that is used for mixing iron and steel raw material of the present invention, comprise: the operation of piling up raw material pile, it comprises first step: after mixing from a plurality of feed bins taking-up raw materials and with it, form first raw mix heap piece by piling up this raw material, and second step: after taking out raw materials from a plurality of feed bins and it is mixed, form second raw mix heap piece on first raw mix heap piece by this raw material is deposited in; And, the operation of mixed material, in a side of the raw material pile of being piled up by the operation of piling up raw material pile, cutting out partial first raw mix heap piece and part second raw mix are piled piece and the two are mixed.Wherein a plurality of raw material pile are piled up in the operation by repeating to pile up raw material pile and the operation of mixed material continuously, make the part that forms slope angle of repose in arbitrary raw material pile cover the part that forms slope angle of repose in the adjacent raw material pile.

Technique effect

[0009] the invention has the advantages that to reduce the required space of device be used to mix is installed, because the present invention can use the feed bin that is less than the raw material type number, by the required mixture ratio of system iron mixed material simply.In addition, the present invention be advantageous in that the present invention still can be by required mixture ratio mixed material simply if add the raw material of other kinds.

[0010] in addition, the advantage that the present invention has is to improve the space availability ratio that is used to pile up raw material pile by continuous formation stockpile, and improve the operability of mixing by continuous mixed material.

Description of drawings

Fig. 1 to Fig. 3 sequential illustrations is piled up the operation of raw material pile according to the present invention;

Fig. 4 to Fig. 5 diagram forms the example of raw material pile continuously by the operation that repeats to pile up raw material pile according to the present invention;

Fig. 6 is an axonometric drawing, illustrates according to the present invention by repeating to pile up the formed raw material pile of operation of raw material pile;

Fig. 7 is an axonometric drawing, the operation of diagram mixed material according to the present invention;

Fig. 8 and Fig. 9 are the scheme drawings of diagram other examples of the operation of mixed material according to the present invention;

Figure 10 is an axonometric drawing of piling up diagram being used to of using among the present invention the device of raw material;

Figure 11 is the schematic representation of apparatus of using among diagram the present invention that is used to pile up raw material.

The specific embodiment

[0018] preferred implementation of the present invention is described with reference to the accompanying drawings.

[0019] Fig. 1 to Fig. 3 sequential illustrations is piled up the operation of raw material pile according to the present invention, wherein Fig. 1 diagram forms the first step of first raw mix heap piece on the ground, Fig. 2 is shown in second step that forms second raw mix heap piece on first raw mix heap piece, and Fig. 3 then is shown in the third step that forms the 3rd raw mix heap piece on second raw mix heap piece.

[0020] Fig. 4 to Fig. 5 diagram forms the example of raw material pile according to of the present invention continuously by the operation that repeats to pile up raw material pile, and the part that wherein arbitrary raw material pile forms slope angle of repose (angle ofrepose) covers the part that adjacent raw material pile forms slope angle of repose.

[0021] Fig. 6 is a diagram according to the axonometric drawing of the formed raw material pile of operation by repeating to pile up raw material pile of the present invention, wherein shows the example of the raw material pile that forms by the operation order that repeats to pile up raw material pile.

[0022] Fig. 7 is the axonometric drawing of diagram according to the operation of mixed material of the present invention, wherein example use with the separating plate of the cooresponding angle tilt of slope angle of repose of raw material pile, separate the part first stockpile piece, the second stockpile piece and second raw material block equably.

[0023] Fig. 8 and Fig. 9 are the scheme drawings of diagram other examples of the operation of mixed material according to the present invention, wherein example uses the separating plate have corresponding to the inclined-plane of slope angle of repose at first to remove the unsettled part of component from the end of raw material pile, uses this separating plate to separate the part of wanting raw materials mixed then.

[0024] Figure 10 is an axonometric drawing of piling up diagram being used to of using among the present invention the device of raw material, and Figure 11 is the schematic representation of apparatus that is used to pile up raw material that diagram is used among the present invention, and the device that wherein is used to pile up raw material can form raw material pile in circle shape mode continuously.

[0025] as shown in Figure 1 to Figure 3, in order to form raw material pile P, present invention resides on the ground first step of piling up first raw mix heap piece 1 and on first raw mix heap piece 1, pile up the second rapid step by step of second raw mix heap piece 2, and may further include the third step of on second raw mix heap piece 2, piling up the 3rd raw mix heap piece 3.

[0026] in addition, although it is not shown, can further include the step of on the 3rd raw mix heap piece, piling up the 4th stockpile piece, and, it should be appreciated that any raw material pile P, as long as can form by pile up raw mix heap piece by a plurality of steps, to obtain required raw material mixture ratio, can comprise in the present invention.

[0027] raw material that will take out from the feed bin of a plurality of storage raw materials mixes and the acquisition raw mix, form first raw mix heap piece 1, second raw mix heap piece 2 and the 3rd raw mix heap piece 3 by piling up raw mix, wherein the raw material that takes out from feed bin may mix in identical ratio, different ratios, and perhaps two kinds form another by identical mixture ratio and then can mix by different mixture ratios.

[0028] forms first raw mix heap piece 1, second raw mix heap piece 2 and the 3rd raw mix heap piece 3 by mixture ratio, this mixture ratio is set like this, make and mix by final required mixture ratio, can change this mixture ratio to have different value from first raw mix heap piece 1, second raw mix heap piece 2 and the 3rd raw mix heap piece 3 isolated parts.

[0029] for example, in order to mix 14 kinds of raw material (A by using 7 feed bins to press predetermined ratio, B, C, D, E, F, G, H, I, J, K, L, M, N) form final raw mix, with different raw material (A, B, C, D, E, F, G) be stored in 7 feed bins by the predetermined mix ratio, take out these raw materials and will be deposited in the ground by the raw mix that mixes these raw materials formation, to form first raw mix heap piece 1, other raw material (H, I, J, K, L, M, N) also be stored in 7 feed bins by the predetermined mix ratio, then, take out these raw materials and will be deposited in first raw mix and pile on the piece 1, to form second raw mix heap piece 2 by the raw mix that makes these raw materials mix formation.

[0030] afterwards, by the operation of mixed material, that is cutting out partial first raw mix heap piece 1 and second raw mix heap piece 2 and the two is mixed, thereby obtain final required mixture ratio.

[0031] according to another example different with above-mentioned example, in order to mix 14 kinds of raw material (A by using 6 feed bins to press the predetermined mix ratio, B, C, D, E, F, G, H, I, J, K, L, M, N) form final raw mix, with different material (A, B, C, D, E, F) be stored in 6 feed bins by the predetermined mix ratio, take out these raw materials, be deposited on the ground by mixing the formed raw mix of these raw materials, to form first raw mix heap piece 1, with other raw material (D, E, F, H, I, J) be stored in 6 feed bins by predetermined ratio once more, take out these raw materials then, be deposited on first raw mix heap piece 1 by mixing the formed raw mix of these raw materials, to form second raw mix heap piece 2.In addition, afterwards, (H, I, J, K, L, M, N) is stored in 6 feed bins by predetermined ratio once more with other raw material, takes out these raw materials then, be deposited on second raw mix heap piece 2 by mixing the formed raw mix of these raw materials, to form the 3rd raw mix heap piece 3.

[0032] afterwards, by the operation of mixed material, that is first raw mix of cutting out partial is piled piece 1, second raw mix is piled piece 2 and the 3rd raw mix heap piece 3, and they are mixed, and obtains final required mixture ratio.

[0033] as mentioned above, when reaching final required mixture ratio by a plurality of feed bins, the raw material that mixing is taken out from feed bin, set with final required mixture ratio, and final required mixture ratio, then can be according to the mixture ratio of the number of feed bin, the kind of carrying out raw materials mixed and quantity and raw material, change by different way.

[0034] simultaneously, as shown in Figure 4, by repeating to pile up the process of raw material, that is repeat to form with the stockpile piece of a plurality of accumulations the process of raw material pile P, comprise the first step and second step, form a plurality of raw material pile P, wherein raw material pile P forms continuously.

[0035] in addition, as shown in Figure 5, front and back at the first stockpile piece 1 in the first step form the part that produces slope angle of repose, and also form the part that produces slope angle of repose in second step in the front and back of the second stockpile piece 2, simultaneously, in second step, pile up the second stockpile piece 2 like this, make the slope angle of repose of its slope angle of repose and the first stockpile piece 1 continuous.

[0036] in addition, arbitrary raw material pile P produces the part of slope angle of repose, covers the part that the adjacent feed buttress produces slope angle of repose.

[0037] just, after the first raw material pile P that comprises first raw mix heap piece 1, second raw mix heap piece 2 and the 3rd raw mix heap piece 3 is piled up in the operation of the accumulation raw material pile by comprising first step, second step and third step, when piling up the second raw material pile P by the operation that repeats to pile up raw material pile, in first step, make the front portion of the slope angle of repose that has first raw mix heap piece 1 form the rear portion that first raw mix heap piece 1 that covers the first raw material pile P has slope angle of repose; In second step, make the front portion of the slope angle of repose that has second raw mix heap piece 2 form the rear portion that second raw mix heap piece 2 that covers the first raw material pile P has slope angle of repose; And, in third step, make the front portion of the slope angle of repose that has the 3rd raw mix heap piece 3 form the rear portion that the 3rd raw mix heap piece 3 that covers the first raw material pile P has slope angle of repose.

[0038] in addition, in the operation of ensuing accumulation raw material pile, preferably in first step, press predetermined altitude and pile up each first raw mix heap piece 1, in second step, press predetermined altitude and pile up each second raw mix heap piece 2, and, in third step, press predetermined altitude and pile up each the 3rd raw mix heap piece 3.

[0039] this makes after cutting out partial first raw mix heap piece 1 and second raw mix heap piece 2 and part the 3rd raw mix heap piece 3, when the operation of continuous repetition mixed material, can keep the blending constituent ratio.

[0040] on the other hand, as shown in Figure 6, preferably, pile up continuously with the circle shape by the formed a plurality of raw material pile P of operation that repeat to pile up as mentioned above raw material pile a plurality of, with the space of effective use stacking.

[0041] by piling up the process of raw material pile P, form raw material pile P continuously in circle shape mode, the front portion of the raw material pile P that piles up from first operation of piling up raw material pile, order is carried out the process with the raw material mixing, that is cutting out partial first raw mix is piled piece 1, second raw mix is piled piece 2 and the 3rd raw mix heap piece 3, and they are mixed.

[0042] according to the operation of mixed material, as shown in Figure 7, by moving corresponding to the side direction opposite side of slope angle of repose bevelled rake device 60 from raw material pile P, part first raw mix heap piece 1, second raw mix heap piece 2 and the 3rd raw mix heap piece 3 are evenly scraped, scrape the part that falls to the ground, be transported to discharge hopper 40 by bridge-type scoper 50 (hereinafter explanation), then, be offloaded to the outside and mix by outer conveyer 70, hereinafter this is specifically described.

[0043] except above-mentioned example, although it is not shown, but by being inserted into the bottom from the top of raw material pile P end corresponding to slope angle of repose bevelled separating plate, the separating plate lower end is contacted with ground, then separating plate is moved on to raw material pile P end, also first raw mix of separating part heap piece 1, second raw mix heap piece 2 and the 3rd raw mix are piled piece 3 and they are mixed equably, and wherein any disengagement gear all comprises rake device 60 and separating plate.

[0044] as Fig. 8 and shown in Figure 9, the operation of mixed material comprises: first separating step, utilize with rake device 60 corresponding to the angle tilt of slope angle of repose, and have the front portion of slope angle of repose from raw material pile P, angle with slope angle of repose is removed curvature portion, constitutes the part that has slope angle of repose from forming to face directly; And, second separating step after first separating step, utilizes with the rake device 60 corresponding to the angle tilt of slope angle of repose, evenly first raw mix of cutting out partial heap piece 1, second raw mix heap piece 2 and the 3rd raw mix are piled piece 3, and they are mixed.

[0045] just, have at raw material pile P slope angle of repose part the end be uneven, and constitute curved surface heterogeneous, in this shape, might make isolated part first raw mix pile the mixture ratio instability of piece 1, second raw mix heap piece 2 and the 3rd raw mix heap piece 3.So, after removing part,, just can obtain required final raw mix continuously equably by repeating second separating step with unstable mixture ratio.

[0046] in addition, by repeating to pile up the operation of raw material pile, pile up raw material pile P with the circle shape, and by repeating the operation of mixed material, with circle shape cutting part material buttress P, thereby, repeat to pile up the operation of raw material pile and the operation of mixed material by becoming the round mode, can in less space, pile up efficiently and mix.

[0047] method that raw material pile P is piled up with the circle shape and uses Figure 10 and shown in Figure 11 being used to pile the device of getting raw material as mentioned above basically, should be appreciated that simultaneously and also can use the device that is used to pile up raw material with different structure.

[0048] being used to pile the device of getting raw material comprises:

[0049] pilum 10, stand on the central authorities of circular dome, and circular dome has the required space of the raw material of accumulation;

[0050] input block 20, are arranged in the top of pilum 10, and input block 20 comprises the interior conveyer 21 of raw material from outside input circular dome, and this raw material is taken out and mixes from a plurality of feed bins;

[0051] stocker 30, and rotary way is installed on pilum 10 below input block 20, and stocker 30 transports from input block 10 discharged raw materials, and it is piled up to form raw material pile P;

[0052] discharge hopper 40, are embedded at pilum 10 belows and store raw material;

[0053] the bridge-type scoper 50, and rotary way is installed on the bottom of pilum 10 and has scraping device, and scraping device inputs to discharge hopper 40 with ground raw material and moves along track simultaneously;

[0054] rake device 60, become and the cooresponding angle of slope angle of repose at bridge-type scoper lopsidedness, and at vertical crank motion of bridge; And

[0055] outer conveyer 70 is offloaded to the outside with the raw material in the discharge hopper 40.

[0056] although not shown, pilum 10 comprises and is used to second turning cylinder that rotates first turning cylinder of stocker 30 and be used to rotate bridge-type scoper 50, and by unshowned motor stocker 30 and bridge-type scoper 50 rotated.

[0057] conveyer 21 transported the device that raw mix enters circular dome in input block 20 was to use, raw mix then is to mix formation by the raw material of being stored in the exterior feed bin of taking-up circular dome and with it, and the operation of mixed material is recorded and narrated in above, no longer describes in detail.

[0058] stocker 30 comprises from pilum 10 radially-protruding accumulation conveyers 31, stocker 30 is installed on pilum 10, and its end can be rotated up and down, and, be provided with balance weight 32 in the opposite end of piling up conveyer 31, to keep balance with the accumulation conveyer 31 that stretches out along a direction.

[0059] piles up conveyer 31 and be arranged to and rotate up and down,, rotate around pilum 10 simultaneously to pile up raw materials mixed.

[0060] just, the raw mix that input block 20 is transported in the circular dome is deposited on the ground, thereby forms first raw mix heap piece 1 by stocker 30.

[0061] in addition, by repeating input and banking process, order is piled up second raw mix heap piece 2 and the 3rd raw mix heap piece 3 on first raw mix heap piece 1, to form a raw material pile P, and at input block 20 and stocker 30 when pilum 10 rotates, a plurality of raw material pile P are formed continuously in circle shape mode.

[0062] in addition, after forming raw material pile P with the circle shape, isolate be deposited in part first raw mix heap piece 1, second raw mix heap piece 2 and the 3rd raw mix heap piece 3 among the raw material pile P and they mixed, this mixed process is carried out simultaneously with the process of piling up raw material pile P.

[0063] on the bridge-type scoper 50 that rotates around pilum 10, rake device 60 is set, operation according to mixed material, by rake device 60 (tilting corresponding to slope angle of repose) is moved by side to opposite side from one of bridge-type scoper 50, just, move to the outside from the inboard of circle shape raw material pile, cutting out partial first raw mix heap piece 1, second raw mix heap piece 2 and the 3rd raw mix are piled piece 3, and part first raw mix heap piece 1, second raw mix heap piece 2 and the 3rd raw mix heap piece 3 are scraped on the ground.

[0064] by means of the scraping device of bridge-type scoper 50, input to discharge hopper 40 with scraping the raw material that falls to the ground, the raw material that will input to discharge hopper 40 then is loaded into outer conveyer 70 and is offloaded to the outside.

[0065] in addition, after the operation of carrying out the mixed once raw material, when pilum 10 moves, also repetitive operation of bridge-type scoper 50, the process of feasible accumulation raw material and the operation of mixed material are able to the circumference mode and repeat.

[0066] according to the method that is used for mixing iron and steel raw material of the present invention, although also can be applied to be deposited in outdoor raw material pile P, preferably, raw material pile is accumulated to outdoor, so that iron and steel raw material is not subjected to the influence of external environment condition, thereby improve its quality.

[0067] the present invention is not limited to above-mentioned embodiment, also can carry out the difference change within the scope of the invention, but should be appreciated that these changes all comprise within the scope of the invention.

Claims

1. method that is used for mixing iron and steel raw material comprises:

Pile up the operation of raw material pile, comprise first step: after taking out raw material from a plurality of feed bins and mixing described raw material, form first raw mix heap piece by piling up raw material, and, second step: after taking out raw material from a plurality of feed bins and mixing described raw material, form second raw mix heap piece by raw material being deposited on described first raw mix heap piece; And

The operation of mixed material in a side of the raw material pile of being piled up by the operation of described accumulation raw material pile, is separated described second raw mix heap piece of described first raw mix heap piece of part and part and is mixed;

Wherein pile up a plurality of raw material pile continuously by the operation that repeats described accumulation raw material pile, the part that makes arbitrary raw material pile form slope angle of repose covers the part that adjacent raw material pile forms slope angle of repose.

2. the method that is used for mixing iron and steel raw material according to claim 1, wherein:

By the continuous described a plurality of raw material pile of piling up of the operation that repeats described accumulation raw material pile, for piling up continuously in circle shape mode.

3. the method that is used for mixing iron and steel raw material according to claim 1, wherein:

In the operation that repeats described accumulation raw material pile, pile piece with each described first raw mix that predetermined altitude is piled up in the described first step, and pile piece with each described second raw mix that predetermined altitude is piled up in described second step.

4. the method that is used for mixing iron and steel raw material according to claim 1, wherein:

In the operation of described mixed material, by corresponding to described slope angle of repose bevelled disengagement gear, described second raw mix heap piece of described first raw mix heap piece of cutting out partial and part, and, the isolated part of described first raw mix heap piece is mixed with the isolated part of described second raw mix heap piece.

5. the method that is used for mixing iron and steel raw material according to claim 1, wherein:

The operation of described mixed material comprises first separating step and second separating step, in described first separating step, make the angle tilt of disengagement gear corresponding to described slope angle of repose, remove curvature portion by described disengagement gear, become to face directly to constitute the part that has described slope angle of repose in the front portion of described raw material pile, described second separating step is then after described first separating step, make the angle tilt of disengagement gear, use described second raw mix heap piece of described first raw mix heap piece that this disengagement gear will part and part to separate and mix corresponding to described slope angle of repose.