KR100793586B1 - Apparatus for surface treatment of sinter mix for sintering machine charging - Google Patents

Abstract

The present invention eliminates the surface unevenness generated in the surface layer portion of the blended raw material, so that the loading density of the blended raw material is kept constant so that uniform plasticity and quality can be improved, while productivity is improved and production cost is reduced. The present invention relates to a surface treatment apparatus for blended raw materials.

The present invention provides a cut-off plate and deflect in a structure in which a compound material discharged from a hopper is loaded into a sintering machine truck through a deflect plate and loaded with a cut-off plate for evenly arranging the surface of the compound material thus loaded. It is installed parallel to the cut-off plate at the corresponding position between the plates, and a plurality of sets of surface treatment units installed at regular intervals with a plurality of blades arranged at regular intervals in contact with the compounding material on the outer surface to be rotated at regular vertical and horizontal intervals. It is done.

Sintering machine, blended raw materials, charged surface, surface treatment machine, blade

Description

Apparatus for surface treatment of sinter mix for sintering machine charging}

Figure 1a is a perspective view showing a state of charging a conventional blending raw material for sintering machine charging in the sintering machine bogie.

Figure 1b is a view showing a state in which the compounding raw materials loaded in the conventional sintering machine bogie.

2a to 2c is a view showing the main portion of the surface treatment apparatus of the blending raw material for the sintering machine charging according to the present invention.

Figure 3a is an overall perspective view showing a surface treatment apparatus of the raw material for the sintering machine charged in accordance with the present invention.

Figure 3b is a side view showing the surface treatment apparatus installation state of the raw material for the sintering machine charged in accordance with the present invention.

Figures 4a to 4c is a view for explaining the operation of the surface treatment apparatus of the blending raw material for the sintering machine charging according to the present invention.

Figure 5 is a flow chart for explaining the operation of the surface treatment apparatus of the raw material for the sintering machine charged in accordance with the present invention.

<Explanation of symbols for the main parts of the drawings>

1: Hopper 2: Drum feeder                 

3: deflect plate 5: cut-off plate

8: Sintering truck 9: Blended raw materials

20: surface treatment 21: round bar

22: blade 23: blade base

26: bearing block 27: geared motor

30: control box

The present invention relates to a surface treatment apparatus for a compound material for sintering machine charging, and in particular, to a surface treatment of the compounding material for sintering machine loading to eliminate surface unevenness occurring in the surface layer portion of the compounding material in the process of being accommodated in the trolley so as to be loaded into the sintering machine. Relates to a device.

In general, sintered ore is manufactured by DL (Dwight lioyd) type sintering process using powdered iron ore, mill-scale and various dusts, and other raw materials such as limestone, serpentine, and semi-ore. When coke and anthracite are mixed and the blended raw materials are charged into the sintering machine truck 8 and then passed through the ignition furnace, ignition occurs at the surface layer and the sintering proceeds as it gradually burns downward by the pressure sucked from the blower. Then, the sintered ore is produced, and the sintered ore is sorted by the screen after cooling and then transferred to the blast furnace plant, which is the next process.

In addition, the compounding material 9 is filled in the sintering machine trolley 8 before being introduced into the sintering machine. In the process of filling the sintering machine trolley, the compounding material is dropped and introduced so that the surface becomes uneven. Is generated. Accordingly, a surface treatment apparatus for evenly treating the surface is provided.

1A is a perspective view illustrating a state in which a conventional compounding material for sintering machine charging is loaded into a sintering machine truck, and as shown therein, a compounding material filled in the hopper 1 is provided with a drum feeder installed at the bottom of the hopper 1 ( According to the rotation operation of 2), it is discharged to the lower part and falls to the deflectck plate 3. The deflector plate 3 is provided with a plurality of slit bars 4 which are arranged at regular intervals for grain size segregation, and the slit bars 4 are provided with brackets 5 at regular intervals. Translational movement in the horizontal direction prevents the adhesion of the blended raw materials.

However, in the deflecting plate 3 as described above, as shown in FIG. 2, the adhering light 9b is formed on the side of the bracket 5 to hinder the flow of the compounding material 9, and the deflecting plate The compounding material flowing through the upper side of the (3) is separated from the left and right by the bracket (5) and the attachment light (9a) occurs, so that the compounding material (9) less flows down the lower end of the bracket (5), Between the bracket 5 and the bracket 5, the compounding material 9 flows a lot, and the groove 9a which has a substantially uneven | corrugated shape is formed in the surface inserted in the sintering machine trolley | bogie 8.

In order to remove the groove 9a, a cut-off plate 6 is installed as shown in FIGS. 1 and 2 to cut off the charged surface to treat the surface of the groove 9a. ), The entire height of the detection rod (7) is increased so that a large amount of compounding material (9) is discharged from the drum feeder (2), and the cutting (7a) part is cut back into the cutoff plate (6). Production activities are underway.

However, in the above method, the charging density of the compounding material 9 charged by the excessive supply of the compounding material 9 is increased, and thus the sintering time is long due to the decrease in the amount of air sucked in the main air blower, thereby decreasing the productivity of the sintered ore. There was a problem.

In addition, there is a problem in that a quality defect occurs due to non-uniform firing of the blended raw material 9 due to a variation in the amount of air sucked by the exhaust fan, and a rise in sintering cost is caused by a decrease in the recovery rate due to the increase of the fraction of the surface layer.

The present invention has been made to solve the above problems of the prior art, the surface unevenness generated in the surface layer portion of the blended material is eliminated, so that the loading density of the blended material is kept constant, thereby achieving uniform plasticity and quality improvement. It is an object of the present invention to provide a surface treatment apparatus for blending raw materials for charging a sintering machine to improve productivity and reduce production costs.

In the surface treatment apparatus of the blending raw material for sintering machine charging according to the present invention for realizing the above problem, the blending raw material discharged from the hopper is loaded into the sintering machine bogie through the deflecting plate and the surface of the blending raw material thus charged In the structure provided with a cut-off plate for evenly arranging, a plurality of blades installed in parallel with the cut-off plate at a position between the cut-off plate and the deflect plate and in contact with the compounding material on the outer surface to arrange the surface at regular intervals It characterized in that the plurality of sets of surface treatment is installed to be rotatable at regular vertical and horizontal intervals.

Preferably, the surface treatment unit is a round bar rotatably installed in a width corresponding to the width of the sintering machine bogie in the width direction of the sintering machine bogie, a plurality of blades provided on the outer surface of the round bar, one end of the round bar Is coupled to the drive means for rotating the round bar including the blade, and characterized in that it comprises a control box for controlling the drive means.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 2a to 2c is a view showing the main portion of the surface treatment apparatus of the blending raw material for sintering machine charging according to the present invention, Figure 3a is an overall perspective view showing a surface treatment apparatus of the blending raw material for the sintering machine charging according to the present invention, Figure 3b is Figure 4a to 4c is a side view showing the surface treatment apparatus installation state of the raw material for the sintering machine charged compound according to the present invention, Figure 5 is a view illustrating the operation of the surface treatment apparatus for the raw material for the sintering machine charged compound, Figure 5 It is a flowchart for explaining the operation of the surface treatment apparatus of the raw material for the sintering machine charged according to the present invention.

Accordingly, in the surface treatment apparatus of the compounding material for sintering machine charging according to the present invention, the drum feeder 2 is installed at the lower part of the hopper 1 in which the compounding material is accommodated, and the compounding material discharged from the drum feeder is deflected from the plate 3. The surface of the blended raw material charged in the sintering machine trolley 8 is arranged so that the surface is evenly arranged in the state loaded and dropped into the sintering machine trolley 8). The cutoff plate 6 is formed by cutting the parts evenly, and the cutoff plate 6 is installed in parallel with the cutoff plate 3 at a position between the cutoff plate 6 and the deflector plate 3. The surface treatment machine 20 is further configured to be rotatable with a plurality of sets of blades provided with a plurality of blades so as to contact the compounding material and clean up the surface in advance before the surface is cut.

The surface treatment machine 20 has a length corresponding to the width of the sintering machine bogie 8 so as to be installed in the width direction of the sintering machine bogie 8 and a round bar 21 which is rotatably installed by the bearing block 26 and the round bar. A plurality of blades 22 installed on an outer surface of the 21, driving means coupled to one end of the round bar 21 to rotate the round bar including the blade 22, and controlling the driving means. It consists of a control box 30 for.

In addition, the driving means is composed of a geared motor 27 as shown in Figure 2c and is connected to the round bar 21 by a universal joint (28) and a slip joint (slip joint) 29 to transmit power. do.

The blade 22 has a lower end coupled to a blade base 23 formed on the outer circumferential surface of the round bar 21. The blade base 23 has a hexahedron shape having an empty space therein and one side thereof is opened. It is formed in a structure and the blade 22 is fitted into this opening is coupled.

In addition, a hole 22a is formed in the blade base 23 and a hole 22a is formed at a corresponding position of the blade 22 coupled to the blade base 23. And fastened and fixed by the nut 25.

On the other hand, the blade 22 has a structure in which an approximately middle portion of the plate-shaped member having an approximately rectangular shape is bent at an angle of 70-80 ° and the bent upper portion is twisted at an angle of approximately 90 ° again.

And the direction of the bent portion of the blade 22 which is coupled to the round bar 21 is coupled to form the opposite direction with the adjacent blade and the blades corresponding to each other are coupled so that their directions are the same.

On the other hand, the surface treatment machine 20 is configured as two sets to have a constant interval as shown in Figure 3a and 3b, but is not limited to this can be variously modified according to the size and capacity of the sintering machine bogie (8) As shown in FIG. 3B, the difference in the installation height of the first surface treatment machine 20a and the second surface treatment machine 20b corresponds to half of the amount of the compounding material accumulated in the cut-off plate 6 (half the accumulation height of the compounding material). The height is reasonable. That is, the height of the blended raw material is determined by the detection rod (7), the height of the first surface treatment machine (20a) is installed to enter up to half the depth of the compounding material (9) accumulated in the sintering machine bogie (8), the second surface treatment machine ( The height of 20b) is preferably set slightly higher than the height of the lower end of the cutoff plate 6.

The surface processor 20 is installed on a base (not shown) connected to the cutoff plate 6 so that the height is adjusted in linkage with the height adjustment of the cutoff plate 6.                     

Referring to the operation of the surface treatment apparatus of the raw material for the sintering machine charged according to the present embodiment configured as described above are as follows.

As shown in FIGS. 3A and 3B, when the drum feeder 2 is operated to discharge the blended raw material from the hopper 1, the drum feeder 2 is dropped into the sintering machine bogie 8 via the deflect plate 3. A groove 9a is formed on the surface of the sintering machine trolley 8 by the attachment light 9b attached to the bar 4 and the bracket 5.

At this time, the geared motor 27 of the surface treatment machine 20a installed adjacent to the deflecting plate 3 is operated to rotate the blade 22 formed on the outer surface of the round bar 21, and the protrusion formed on the surface layer of the blending source 9. Is pushed toward the deflecting plate 3 side so that the compounding material pushed out is filled in the groove 9a portion of the surface layer portion.

In other words, when the surface treatment of the surface layer portion is completed in the form as shown in FIG. 4B and the sintering bogie 8 proceeds continuously in this state, the secondary surface treatment machine 20b installed one step lower once. The surface condition of the surface layer portion of the blended raw material 9 is summarized.

At this time, the compounding material 9 of the surface layer is segregated once again by the particle size by the blade 22 and the powder coke particles on the compounding material 9 are positioned on the surface of the surface layer so that the surface layer passes through the ignition furnace. Ignition becomes easy.

As shown in FIG. 4C, when the sintering machine cart 8 continues in the state in which the surface is arranged, the compounding material 9 reaches the installation position of the cutoff plate 6, and the cutoff plate is fixed at the surface layer portion of the compounding material. The shavings are evenly cut in height, and the cut surface is moved to the ignition furnace.

As shown in FIG. 5, the surface processor 20 is capable of remote operation and field operation. That is, the remote operation is a drum feeder in a state in which the selection switch of the control box 30 is set to remote. When (2) is activated, the surface processor 20 is automatically operated by this signal. In the field operation, the selection switch of the control box 30 is set locally regardless of whether the drum feeder 2 is activated. If the stop switch is released in the set state, it is started by operating the start switch.

As described above, the surface treatment apparatus of the blending raw material for sintering machine charging according to the present invention is uniformly processed on the loading surface of the blending raw material, so that an appropriate amount is supplied from the drum feeder so that the amount of blending raw material cut from the cut-off plate becomes constant. As a result, the loading density of the blended raw material is kept constant and the productivity of the sintering machine is improved, and the density difference of the blended raw material is eliminated in the width direction of the sintering machine truck. Firing and quality can be improved, and the sintering cost can be reduced by increasing the recovery rate by lowering the fraction of the surface layer due to good ignition.

Claims (3)

In the structure provided with a cut-off plate which is loaded into the sintering machine trolley discharged from the hopper through the deflecting plate and evenly arranges the surface of the compounding material loaded in this way, A plurality of surface treatment devices are installed at a position corresponding to the cut-off plate and deflect plate in parallel with the cut-off plate and provided with a plurality of blades arranged at regular intervals in contact with the compounding material on the outer surface at regular intervals. Surface treatment apparatus for the compounding raw material for the sintering machine charge, characterized in that installed rotatably. The method of claim 1, The surface treatment machine is coupled to a round bar rotatably installed in a width corresponding to the width of the sintering machine bogie in the width direction of the sintering machine bogie, a plurality of blades installed on an outer surface of the round bar, and coupled to one end of the round bar. And a drive means for rotating the round rod including the blade, and a control box for controlling the drive means. The method according to claim 1 or 2, The blade is detachably coupled to the blade base installed on the round bar, the blade is approximately 90 degrees of the middle of the plate-shaped member having an approximately rectangular shape is bent at an angle of 70-80 ° and thus the bent top is approximately 90 Surface treatment apparatus for the compounding material for the sintering machine charging characterized by having a structure twisted at an angle of °.

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