CN102803884B - Sintering palette carriage, sintering machine provided with sintering palette carriage, and sintered ore producing method - Google Patents

Abstract

The present invention provides a plate-type sintering trolley equipped with a sintering cake supporting platform, a sintering machine and a sintering ore equipped with the trolley, which avoid cracks on the surface of the sintering cake, maximize the effect of supporting the sintering cake, and improve product quality and productivity. manufacturing method. The plate-type sintering pallet of the present invention is used in a sintering machine for producing sintered ore under the condition that the thickness of the raw material filling layer is thicker than 600 mm, wherein the plate-type sintering pallet is equipped with a plurality of A block supporting table, the sintering block supporting table is erected so that its surface is substantially parallel to the traveling direction of the sintering trolley, and its height (H) is H=h−120 [mm] (h is the layer thickness of the raw material filling layer) or less.

Description

Plate-type sintering trolley, sintering machine equipped with the same, and method for manufacturing sintered ore

technical field

The present invention relates to a plate-type sintering trolley for producing sintered ore used as a raw material for a blast furnace, a sintering machine equipped with the trolley, and a method for producing sintered ore. In particular, it relates to the production of sintered sintering under the condition that the thickness of the raw material filling layer is thicker than 600 mm. A plate-type sintering trolley applicable to mines, a sintering machine equipped with the trolley, and a method of manufacturing sintered ore using these equipment.

Background technique

In a bottom-suction sintering machine for producing sintered ore, which is a raw material for blast furnaces, as shown in FIG. On the grate bar 103a, a furnace bottom cushion 102 with a thickness of about 30 mm is formed. Next, the sintering raw material 104 consisting of iron-containing raw materials such as powdered iron ore as the main raw material, auxiliary raw materials such as limestone, and fuel such as powdered coke is transported to the impact hopper 105 for storage, and then taken out from the barrel feeder. , into the bottom ore 102 of the plate type sintering trolley 103 via the chute 106 to form a raw material filling layer 107 . Next, after the powdered coke in the upper surface layer of the raw material filling layer 107 is ignited by the ignition furnace 108, while applying suction negative pressure to suck air downward, the plate type sintering trolley 103 is sequentially moved horizontally to the ore discharge part, during which the raw material is filled. Powdered coke in the layer 107 is combusted, and raw materials are sequentially sintered from the upper layer to the lower layer by the combustion heat to produce sintered ore.

In the sintering process of sintering from the upper layer to the lower layer of the raw material filled layer 107 , first, a sintered layer 107 a (hereinafter referred to as “sintered lump”) in which sintering is completed is formed on the upper layer. The raw material filled layer directly under the sintered block forms a softened and melted layer where combustion and sintering are in progress, and an unsintered raw material filled layer exists below it. Compression, high bulk density. Therefore, the ventilation in the raw material packed layer including the softened molten layer under the sintered cake is reduced, and the ventilation becomes non-uniform. In addition, this causes a reduction in the combustion rate of the carbon material in the raw material filling layer and non-uniform combustion. As a result, the sintering rate decreases and the sintering yield decreases. Therefore, there is a problem that the productivity of sintered ore decreases.

As a method of reducing the load of the sintered agglomerate acting on the softened molten layer and the raw material filling layer below the sintered agglomerate, as shown in FIG. (hereinafter, referred to as "sintering block support table") and sintering with a table-supported sintering method (for example, Patent Documents 1 and 2).

In this table-supported sintering method, sintering is carried out from the upper layer of the raw material filling layer, the thickness of the sintered cake increases, and when the thickness of the sintered cake reaches the height position of the top of the sintered cake support table, the sintered cake is supported by the top of the sintered cake support table, reducing the The agglomerate load applied to the lower layer improves ventilation and remarkably improves productivity (hereinafter, this effect is referred to as "sinter agglomerate support effect").

Patent Document 1: (Japanese) Unexamined Patent Publication No. 2-293586

Patent Document 2: (Japanese) Unexamined Patent Publication No. 4-168234

Patent Document 3: (Japanese) Patent No. 2715218

Patent Document 4: (Japanese) Unexamined Patent Publication No. 6-323745

Patent Document 5: (Japanese) Unexamined Patent Publication No. 9-209050

Patent Document 6: (Japanese) Unexamined Patent Application Publication No. 2010-144946

The sintered cake support effect is the effect obtained after the sintered cake is supported by the top of the sintered cake support table. In order to carry out sintering at a certain state of the sintering cake support effect as early as possible from the start of sintering, it is desirable to use a sintering cake support stand as high as possible.

However, since the sintered cake is partially supported on the top of the sintered cake support table, the height of the sintered cake support table is too high. If it is too thin, as shown schematically in FIG. 7, there is a problem that cracks 110 are generated on the surface of the sintered cake above the sintered cake support table during the sintering process (in addition, as can be seen from the schematic diagram of FIG. 1, (the raw material filling layer The thickness of the layer (h) - the height of the sintered block support table (H)) becomes the "supported sintered block thickness"). When cracks occur on the surface of the sintered block, gas flow is preferentially caused at the cracked portion, so the so-called non-uniform sintering in which the lower layer is sintered unevenly is promoted, and the productivity is lowered.

Therefore, it is necessary to avoid cracking on the surface of the sintered block.

It can be seen that cracks occur when the "supporting sintered cake thickness" is too thin. In addition, regarding the occurrence of cracks on the surface of the sintered cake, it is undoubtedly considered that there is a lower limit to the "supported sintered cake thickness", in other words, there is an upper limit to the height of the sintered cake support table. Therefore, in order to avoid cracks, it is only necessary to select the height of the sintered cake support table so that the "supported sintered cake thickness" becomes thicker than the lower limit thickness at which cracks occur. In other words, it is considered that the height of the sintered cake support table should be set lower than the upper limit of the height of the sintered cake support table corresponding to the lower limit of the "supported sintered cake thickness" at which cracks occur.

However, the mechanism of cracking on the surface of the sintered cake is not fully understood, and there is no policy and countermeasure for how to determine the lower limit of the "supported cake thickness" or the upper limit of the height of the cake support table.

Under such circumstances, Patent Document 3 shows that the ratio of the height of the sintered cake support table to the layer thickness of the raw material filling layer (hereinafter referred to as "height ratio to layer thickness" as appropriate) determines that The method of considering the upper limit of the height of the sintered block support table. Specifically, the upper limit of the height of the sintered cake support table is based on the result of cracks occurring on the surface of the sintered cake by using a sintered cake support table with a height of 450 mm or more for a raw material filled layer with a typical layer thickness of 600 mm currently used. The "height ratio to layer thickness" is shown as 75%.

Based on this way of thinking, in order to avoid the occurrence of cracks, the thicker the raw material filling layer is, the thicker the "support sintered block thickness" needs to be. As mentioned above, when the raw material packing layer is 600 mm, the lower limit of the "support sintered cake thickness" is 150 mm, and assuming that an 800 mm raw material packed bed is used, the lower limit of the "supported sintered cake thickness" is 200 mm (the height of the sintered cake support table The upper limit is 600mm).

According to this conventional method, the thicker the raw material filling layer is, the greater the load of the sintered cake is applied to the sintered cake support table, and as a reaction to this, the force acting on the sintered cake from the sintered cake support table is also increased. Cracks are likely to occur in the sintered lump due to an increase in the force acting on the sintered lump. In particular, when the layer thickness exceeds 720 mm, cracks are likely to occur in the sintered block as the load on the sintered block increases. Therefore, it is easy to understand that the "supporting sintered cake thickness" needs to be thicker as the raw material filling layer is thicker.

However, in Patent Document 3, no consideration is given to the strength of the sintered compact. In general, cracking of solid materials is considered to occur when the stress acting on the material exceeds the strength of its solid material, however, this is also true for sintered blocks. Therefore, considering the strength of the sintered cake, it is considered meaningful to reconsider the method of obtaining the lower limit of the "thickness of the supported sintered cake", that is, the upper limit of the height of the sintered cake support table.

The sintering principle of the downward suction method is to ignite the carbon material in the surface layer of the raw material filling layer with the ignition furnace, and burn the carbon material sequentially through the downward suction, so that the heat transfer proceeds downward. On the basis of this principle, the preheating effect of fuel combustion in the upper part of the raw material filled layer is still small, and the thickness of the softened molten layer with high air flow resistance is thin, so the overall air flow resistance of the raw material filled layer is also small. . Therefore, the temperature of the upper layer of the raw material filled layer is low and the combustion of the carbon material progresses too quickly. As a result, the combustion melting reaction (sintering reaction) is insufficient, and the strength of the sintered agglomerate is lowered.

As described above, it is known that the strength of agglomerates largely depends on the airflow resistance and air permeability thereof, and that the strength of the agglomerates in the upper layer of the raw material filling layer is lower than that of the agglomerates in the lower layer.

The inventors have noticed that the above-mentioned principle that the difference in strength occurs between the upper layer of sintered compact and the lower layer of sintered compact is also applicable to the strength of the sintered compact between layers filled with raw materials having different layer thicknesses. Compared with the raw material packed layer under the condition of low layer thickness, the air flow resistance of the raw material packed layer under the condition of high layer thickness is greater than the thickness increase. Therefore, the combustion ratio of the upper layer of the raw material filled layer under the condition of high layer thickness The combustion of the upper layer of the lower raw material packed layer proceeds more slowly. Therefore, it is considered that the strength of the sintered agglomerate of the upper layer of the raw material filled layer under the condition of a high layer thickness is higher than that of the upper layer of the raw material filled layer under the condition of a low layer thickness due to the preheating effect.

That is, from the viewpoint of air permeability, it is considered that the thicker the raw material packed layer is, the higher the strength of the sintered cake at the "supporting sintered cake thickness" portion of the upper layer of the raw material packed layer is. Based on the knowledge that the strength of the sintered cake at the "supporting sintered cake thickness" portion of the upper layer of the raw material packed layer depends on the layer thickness of the raw material packed layer, it is considered that the "height ratio to the layer thickness" shown in Patent Document 3 The upper limit of the height of the sintered cake support table which is 75% does not exceed the upper limit of the strength of the sintered cake when the layer thickness condition is "in the case of a layer thickness of 600 mm".

Therefore, in the case of producing sintered ore under the condition of a raw material-packed layer thicker than 600 mm, it is possible to avoid cracks on the surface of the sintered block and use a platform with a "height ratio to layer thickness" higher than 75% High height sintered block support table.

In addition, in the case of the rule of the upper limit of the height of the sintered cake support table where the "height ratio to the layer thickness" is 75%, the thicker the raw material filled layer is, the higher the thickness of the raw material filled layer that does not receive the sintered cake support effect. The thicker the thickness, therefore, the ratio of low-quality sintered ore increases, and the yield decreases.

Due to the trend of high production and thicker layers in sinter manufacturing in recent years, it is very important to find a new upper limit rule that is more consistent for higher layers of thick raw material filling layers.

In addition, Patent Document 4 proposes to improve the reduction in productivity caused by the deterioration of air permeability caused by the compression of sintered agglomerates and the reduction in the burning rate of coke accompanying this, but only focuses on the layer of sintered raw material. Thickness does not give adequate results. In addition, in Patent Document 5, it is proposed to regularly disperse the sintered cake support members in order to increase the coke sintering rate, and in Patent Document 6, it is proposed to increase the life of the sintered cake support members. However, The structure and arrangement method of the sinter cake support stand optimized for the purpose of maximizing the sinter cake support effect and improving product quality and productivity are not disclosed.

Contents of the invention

The present invention was established in view of the above circumstances, and its object is to provide a sintered cake that avoids cracks formed on the surface of the sintered cake directly above the support table, maximizes the effect of supporting the sintered cake, and improves product quality and productivity. A plate-type sintering trolley for a sintering block support table, a sintering machine provided with the trolley, and a method for producing sintered ore using the above-mentioned apparatus.

The inventors of the present invention conducted earnest research to achieve the above object, and as a result, found that when producing sintered ore under the condition of a raw material filling layer with a layer thickness higher than 600 mm, especially higher than 720 mm, it is possible to avoid the formation of the hole directly above the support table. The upper limit of the height of the sintered block supporting table of cracks on the surface of the sintered block is regulated, and the present invention has been completed.

In order to solve the above-mentioned problems, the gist of the present invention is as follows.

(1) A plate-type sintering trolley for producing sintered ore with a thickness of a raw material filling layer thicker than 600 mm, characterized in that the plate-type sintering trolley is equipped with a plurality of sintering poles in the width direction of the sintering trolley. A block supporting table, the sintering block supporting table is erected so that the side surface is substantially parallel to the traveling direction of the sintering trolley, and the height (H) is H=h-120 [mm] or less (h is the layer thickness of the raw material filling layer) , the width ( _WS ) of the top surface of the sintering block supporting table is 30 [mm] ≤ _WS ≤ 60 [mm], and the number of the sintering block supporting tables is as follows: The distance between the sintering block support tables and the distance between the adjacent sintering block support tables and the side wall of the plate type sintering trolley shall not exceed 1250mm.

(2) A sintering machine including the plate-type sintering pallet described in (1).

(3) A method for producing sintered ore, wherein, on a plate type sintering pallet, the distance between adjacent sintering cake support tables in the width direction of the sintering pallet and the distance between the adjacent sintering cake support tables and the plate type sintering pallet The distance between the side walls is not more than 1250 mm. A plurality of sintering block support tables are provided in the width direction of the sintering trolley, and while supporting the sintering block, the sintered ore is produced under the condition of a raw material filling layer thickness thicker than 600 mm. The sintering The block supporting table is erected parallel to the traveling direction of the sintering trolley and has a height (H) of H=h-120 [mm] or less (h is the layer thickness of the raw material filling layer), and the width ( _WS ) of the top surface is 30 [mm] ≤ W _S ≤ 60 [mm].

According to the plate type sintering pallet of the present invention, it is a plate type sintering pallet for producing sintered ore under the condition that the thickness of the raw material filling layer is thicker than 600mm, and a sintering machine equipped with the same. On the plate type sintering pallet, There are multiple plates in the width direction of the sintering trolley, and the sides are approximately parallel to the traveling direction of the sintering trolley. The height (H) is H=h-120 [mm] (h is the layer thickness of the raw material filling layer) The sintered cake support platform, that is, formed to be higher than the height of the existing sintered cake support platform and to have a height H = h - 120 [mm] (h is the raw material filling Layer thickness) of the structure of the sintered block support table, therefore, the cracks formed on the surface of the sintered block directly above the support table can be avoided by simple changes, the sintered block support effect can be maximized, and the quality of the finished product and production can be improved. sex.

According to the plate type sintering trolley of the present invention, as a sintering block support platform, the width of its top surface ( _WS ) is set to be 30 [mm] ≤ W _S ≤ 60 [mm], as the number of sintering block support platforms, The distance between the adjacent sintering cake support platforms in the width direction of the sintering trolley and the distance between the adjacent sintering cake support platforms and the side wall of the plate type sintering trolley are selected in such a way that the distance between them does not exceed 1250 mm. Cracks on the surface of the sintered cake directly above the support table, and the phenomenon of the previous stage, bulging, can maximize the support effect of the sintered cake, and can improve the quality and productivity of the finished product.

According to the sintering machine and the method for producing sintered ore of the present invention, cracks on the surface of the sintered cake can be avoided, and the quality and productivity of the finished product can be improved by the sintered cake support effect.

Description of drawings

Fig. 1 is the schematic diagram for explaining the relation of the height of the sintered block support table of the present invention and the raw material filling layer;

Fig. 2 is a top view of a plate-type sintering trolley provided with a sintering cake supporting platform, which is a schematic view illustrating the relative position and size relationship between the top surface of the sintering cake supporting platform and the upper surface of the plate-type sintering trolley according to the present invention;

Fig. 3 is a schematic perspective view of a plate type sintering trolley provided with a sintering cake support platform, and is used to explain the distance between adjacent sintering cake support platforms and the distance between adjacent sintering cake support platforms and the side walls of the plate type sintering vehicle according to the present invention. map of distances;

Fig. 4 (a) is a schematic top view of a plate-type sintering trolley equipped with a sintering cake support platform of the present embodiment, and Fig. 4 (b) is a schematic cross-sectional view along line A-A' of (a);

Fig. 5 is a schematic sectional view of the suction sintering machine below;

Fig. 6 is a schematic perspective view of a plate-type sintering trolley equipped with a sintering block support table;

Fig. 7 is a diagram schematically showing cracks on the surface of a sintered block.

Mark description

1: raw material filling layer

1a: Sintered block

3: Plate sintering trolley

3A: Upstream end

3B: Downstream end

4: Sintered block support table

4a: top face

L ₀ : the length of the plate sintering trolley

W ₀ : Width of plate sintering trolley

H: the height of the sintered block support table

L _S : the length of the sintered block support table

W _S : Width of sintered block support table

d ₁ : Distance between adjacent sintered cake support tables

d ₂ : the distance between the adjacent sintering block support table and the side wall of the plate sintering trolley

L ₀ : The length of the plate sintering trolley in the direction of travel

h: layer thickness of raw material filling layer

Detailed ways

Hereinafter, a plate-type sintering pallet to which an embodiment of the present invention is applied, a sintering machine including the plate-type sintering pallet, and a method of manufacturing sintered ore will be described in detail using the drawings.

Fig. 1 is a cross-sectional view schematically showing the vicinity of a sintered cake support table of a raw material filling layer during sintering on a plate type sintering pallet.

During the sintering process, the raw material filling layer 1 on the sintering trolley 3 has a sintered finished layer (sintered block) 1a on the upper layer, a softened and melted layer 1b under combustion, and an unfinished layer 1b below it. In the state of the sintered raw material filling layer 1 c and the bottom liner 2 , the sintered cake 1 a is supported by the sintered cake support table 4 .

The layer thickness (h) of the raw material filling layer 1 exceeds 600 mm, and the height (H) of the sintered cake support table 4 installed on the sintering pallet 3 is set to H=h−120 mm or less.

By setting the upper limit of the height (H) of the sintered cake support table 4 to a value 120 mm lower than the thickness (h) of the raw material packed layer 1, the method of producing sintered ore under the condition that the raw material packed layer has a layer thickness exceeding 600 mm In , the "support sintered block thickness" that does not cause cracks is formed directly above the support table.

That is, the height of the sintered cake support table is set within a range in which the "supported sintered cake thickness" formed directly above the support table can be ensured at least 120 mm, thereby avoiding the unevenness of the surface of the sintered cake formed directly above the support table. Cracking, the quality and productivity of finished products of sintered ore can be improved through the sintered block support effect.

When the height (H) of the sinter cake support table 4 is higher than (layer thickness (h)−120) mm, the "support sinter cake thickness" becomes thinner than 120 mm, and cracks occur on the surface of the sinter cake formed directly above the support table. In addition, the lower limit is not particularly limited, but when the height (H) of the sintered cake support table 4 is less than 450 mm, the improvement of the sintering progress rate (FFS) is not large, so it is preferably set to 450 mm or more.

Fig. 2 is a plan view of a plate-type sintering trolley 3 with a sintering cake support platform 4 standing upright, and is a schematic diagram for explaining the relationship between the relative position and size of the top surface 4a of the sintering cake support platform 4 and the bottom surface of the plate-type sintering trolley 3 .

In the drawings, the direction from the upstream end 3A toward the downstream end 3B of the plate-type sintering trolley is the traveling direction of the plate-type sintering trolley.

In addition, the width ( _WS ) of the top surface of the sintering cake support table 4 described below refers to the dimension (mm) of the top surface parallel to the width direction of the sintering pallet as shown in FIG. The length (L _s ) of the top surface refers to the dimension (mm) parallel to the traveling direction of the sintering pallet.

The width ( _WS ) of the top surface of the sintered cake support table 4 is preferably 30 [mm]≦ _WS ≦60 [mm].

This is because when the width ( _WS ) of the top surface is narrower than 30mm, the surface support effect is insufficient for the upper layer sintered block, and it becomes a state close to the line support, and the sintered block tends to be parallel to the traveling direction. Cracks are engraved, and when the width ( _WS ) of the above-mentioned top surface is wider than 60 mm, the amount of heat released from the top surface increases, and the quality and productivity of the finished product of the sintered ore decrease.

The longer the length (L _S ) of the top surface of the sintered cake support table 4 is, the larger the area for supporting the sintered cake is. Therefore, it is possible to avoid stress concentration on the upper layer of the sintered cake, which is advantageous for avoiding cracks. However, in order to ensure good detachability of sintered agglomerates from the plate type sintering pallet by the ore discharge part of the sintering machine, as shown in FIG.

Fig. 3 is a schematic perspective view of a plate-type sintering pallet provided with a sintering cake support table according to the present invention.

The distance _d1 between adjacent sintering cake support platforms in the width direction of the sintering pallet and the distance _d2 between the adjacent sintering cake support platforms and the side wall of the plate type sintering pallet are both smaller than 1250 mm.

When either of _d1 or _d2 is 1250 mm or more, the load applied to each sintered cake support table is too large, and cracks are likely to occur on the surface of the sintered cake formed directly above the support table.

When setting the width of the plate-type sintering trolley to be wider than the existing width, as long as the above-mentioned distance _d1 between adjacent sintering cake support platforms and the distance between the adjacent sintering cake support platforms and the side wall of the plate-type sintering trolley The number of sintered block support tables can be determined in such a way that the distance d ₂ does not exceed 1250 mm.

Example

A plate type sintering pallet 13 with a length L ₀ of 1500 mm and a width W ₀ of 5500 mm was used.

In addition, as shown in FIG. 4, on the plate-type sintering trolley 13, a plurality of groups of grate bars (13a) arranged parallel to the traveling direction of the sintering trolley are arranged in three rows in a direction perpendicular to the traveling direction of the plate. (13A, 13B, 13C), in the rear two rows (13B, 13C) of the above-mentioned grate furnace bar (13a) group, four roughly trapezoidal sintering block support platforms 14a are respectively provided along the width direction of the sintering trolley. , 14b. In the width direction of the sintering trolley, the distance _d1 between adjacent sintering cake support platforms is set as follows. is 1010mm, and the distance between the second and third units is set to 1000mm. In addition, the distance _d2 between the sintering cake support table and the side wall of the plate-type sintering pallet was set to 1240 mm, respectively.

<Reference> 1010×2+1000+1240×2=5500mm (width of sintering car)

The cross-section of each sintering block support table horizontal to the traveling direction of the sintering trolley has a roughly trapezoidal plate shape, and the cross-section in the thickness direction has a tapered shape in which the plate thickness becomes thinner from bottom to top in consideration of good ore drainage. It is erected so that its side surface is approximately parallel to the traveling direction of the sintering trolley. In addition, the length and width of the bottom (lower bottom of the trapezoid) of each sintered cake support table were 500 mm and 100 mm, respectively, and the length and width of the top (upper bottom of the trapezoid) were 200 mm and 47 mm, respectively.

Table 1 shows the presence or absence of cracks on the surface of the sintered agglomerate formed directly above the support table, the TI (inverting strength) strength of the sintered ore, and the yield of the sintered ore produced using the plate-type sintering pallet of each embodiment of the present invention. In addition, Table 2 shows comparative examples. "h-H" in the table corresponds to the "support sintered block thickness" formed directly above the support table. In addition, the presence or absence of cracks was visually judged.

[Table 1]

[Table 2]

Comparative example 1 Comparative example 2 Comparative example 3 Comparative example 4 Taiwan H (mm) 500 600 700 800 Layer thickness h (mm) 610 710 810 910 h－H(mm) 110 110 110 110 Crack have have have have

In Examples 1 to 9, under the condition that the layer thickness (h) of the raw material packed layer is 600 mm to 970 mm, the height (H) of the sintered cake support table is (layer thickness (h) of the raw material packed layer - 120) [mm] or less The "support sintered block thickness" formed directly above the support table can be ensured to be 120mm or more, so no cracks occur on the surface of the upper sintered block. As a result, the TI strength and yield of the sintered ores of Examples 1 to 9 were good.

In addition, since the layer thicknesses of the raw material filling layers in Examples 1 to 9 became thicker in order, the "support sintered cake thickness" formed directly above the support table increased, and the load of the sintered cake also increased. However, since the strength of the sintered block increases due to the increase in the layer thickness of the raw material filling layer, cracks do not occur on the surface of the upper layer of the sintered block.

In contrast, the height (H) of the sintered cake support table in Comparative Examples 1 to 4 is higher than (the layer thickness (h) of the raw material filling layer - 120) [mm], and the "supported sintered cake thickness" formed directly above the support table is 110mm, which is less than 120mm, therefore, the layer thickness (h) of the sintered raw material filled layer is 610mm (Comparative Example 1), 710mm (Comparative Example 2), 810mm (Comparative Example 3), 910mm (Comparative Example 4) Cracks occurred in both cases.

Claims (3)

1. a board-like pallet, for manufacturing sintering deposit with the condition of the raw material packed layer thickness thicker than 720mm, is characterized in that,

On this board-like pallet, multiple agglomerate supporting station is possessed at the width of pallet, described agglomerate supporting station erects in the mode that the direct of travel of side and pallet is almost parallel, height H than raw material packed layer thickness 75% high and H=h-120 [mm] below, wherein, h is raw material packed layer thickness

The width W of the top surface of described agglomerate supporting station _sbe 30 [mm]≤W _s≤ 60 [mm], the mode that the number of described agglomerate supporting station is no more than 1250mm with the distance between the sidewall of agglomerate supporting station spacing adjacent on the width of pallet and adjacent agglomerate supporting station and board-like pallet is selected.

2. a sintering machine, is characterized in that, possesses board-like pallet according to claim 1.

3. the manufacture method of a sintering deposit, wherein, on board-like pallet, the mode being no more than 1250mm with the distance between the sidewall of agglomerate supporting station spacing adjacent on the width of pallet and adjacent agglomerate supporting station and board-like pallet is provided with multiple agglomerate supporting station on the width of pallet, one side supporting agglomerate, while manufacture sintering deposit with the raw material packed layer thickness condition thicker than 720mm, the direct of travel of described agglomerate supporting station and pallet erects abreast, height H than raw material packed layer thickness 75% high and H=h-120 [mm] below, wherein, h is raw material packed layer thickness, and the width W of top surface _sbe 30 [mm]≤W _s≤ 60 [mm].