A grate bar briquette that suppresses edge effects

Abstract

The utility model relates to metallurgy field, the utility model aims at providing a grate bar briquet for restraining edge effect, solve the problem that the car warehouse burns the uneven problem of burning, including the pressure seat, bolt and the pressing plate, the pressure seat has the datum plane, the pressing plate is located grate bar top, the ventilation gap is formed between the pressing plate and grate bar, because the bolt sets up on the car warehouse lateral wall, makes the datum plane to fit on the car warehouse lateral wall, the pressing plate extends to the direction of far away from the car lateral wall, that is, the pressing plate extends from the car warehouse edge to the middle, like this, the car warehouse edge is stopped by the pressing plate, the ventilation hole of the mineral material on the pressing plate and the car warehouse edge is not directly communicated, like this, the mineral material in the car warehouse burns slowly because of less air, the burning speed of the edge mineral material in the car warehouse and the mineral material in other areas is synchronous, the mineral material in the car warehouse can burn evenly, therefore, the problem that the car warehouse burns the uneven problem of burning is solved.

Description

Technical Field

[0001] This utility model relates to the field of metallurgy, and in particular to a grate bar pressing block for suppressing edge effects. Background Technology

[0002] The sintering trolley is the main equipment in the production operation of a belt sintering machine. The main sintering unit consists of upper and lower guide rails, front and rear star wheels, curved rails, a transmission mechanism, and trolleys arranged on the upper and lower guide rails. The trolleys are powered by the head star wheel and run periodically within a closed loop formed by the head and tail star wheels and the upper and lower rails. As the core equipment in the sintering production process, the trolleys are used to evenly distribute the wetted and mixed material. Under the action of negative pressure ignition and fan exhaust, sinter is gradually formed. To ensure the permeability of the mixed material layer, several rows of grate bars with gaps of 6-8mm are evenly arranged on the trolleys. These bars not only support the mixed material to prevent it from entering the main exhaust duct but also ensure good air permeability, making them an important part of the sintering production process. During the sintering process, the mixed material must be evenly and flatly distributed on the sintering machine trolley. After ignition by the igniter, under the action of the main air box exhaust, the negative pressure of the exhaust causes the air volume to pass evenly through the material layer of the sintering machine, and the sinter is formed as the combustion layer moves downwards. After the sintering process, the thickness of the red layer on the cross-section should be uniform during unloading at the tail of the machine to improve the yield and quality of sintered ore. In actual production, due to factors such as segregation of the mixed material, a large amount of large particles on both sides of the sintering machine, and gaps between the side panels and the mixed material, the airflow rate on both sides of the sintering machine trolley is excessive, causing harmful air leakage and creating an edge effect. This affects the quality of the sintered ore and wastes wind and electricity. Therefore, suppressing air leakage at the trolley side panels and eliminating the edge effect of the sintering machine trolley is particularly important. Utility Model Content

[0003] The purpose of this invention is to provide a grate bar briquetting method that suppresses edge effects, thus solving the problem of uneven combustion of ore in the trolley bin.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] This utility model provides a grate bar pressure block for suppressing edge effects, comprising a pressure seat, bolts, and a pressure plate.

[0006] The pressure seat has a reference surface, the bolt is set on the reference surface, the extension direction of the bolt is aligned with the side wall of the trolley compartment, the pressure plate is set at the bottom of the pressure seat, the pressure plate extends away from the reference surface, the bolt is used to set on the side wall of the trolley compartment, the pressure plate is located above the grate bar, and an air gap is formed between the pressure plate and the grate bar.

[0007] Optionally, the bolt passes through the side wall of the trolley compartment, and a nut is provided at the outer end of the bolt.

[0008] Optionally, the bolt has a tapered surface on its outer periphery, with the thicker end of the tapered surface abutting against the pressure seat and the thinner end of the tapered surface aligned with the side wall of the trolley compartment.

[0009] Optionally, the bolt extends with a pointed tip.

[0010] Optionally, the pressure base has an inclined surface, which is disposed opposite to the reference surface, and the pressure plate is located below the lower end of the inclined surface.

[0011] Optionally, the bottom edge of the pressure plate is provided with protrusions, which abut against the grate bars.

[0012] Optionally, the pressure plate extends to both ends of the side wall of the trolley compartment.

[0013] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0014] This utility model discloses a grate bar pressure block for suppressing edge effects. Because the bolts are installed on the side wall of the trolley compartment, the reference surface is attached to the side wall. The pressure plate extends away from the side wall, meaning it extends from the edge of the trolley compartment towards the center. This blocks the edge of the trolley compartment, and the ore on the pressure plate is not directly connected to the vent holes at the edge of the trolley compartment. As a result, the ore burning in the trolley compartment burns slowly due to less air. The ore at the edge of the trolley compartment burns at the same speed as the ore in other areas, allowing for uniform combustion. Therefore, this solves the problem of uneven combustion of ore in the trolley compartment. Attached Figure Description

[0015] The following sections will describe some specific embodiments of the present invention in a detailed manner by way of example and not limitation, with reference to the accompanying drawings. The same reference numerals in the drawings denote the same or similar parts or components. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0016] Figure 1 This is a front view of Example 1;

[0017] Figure 2 yes Figure 1 The cross-sectional view of the trolley compartment shown;

[0018] Figure 3 This is a side view of the grate bar pressing block;

[0019] Figure 4 This is a top view of the comb arrangement;

[0020] Figure 5 This is a top view of the comb arrangement;

[0021] Figure 6 This is a cross-sectional view of Example 2;

[0022] Figure 7 yes Figure 3 A top view of the pressure plate with raised dots.

[0023] The reference numerals in the attached figures are explained as follows:

[0024] 1. Pressure seat; 2. Bolt; 3. Pressure plate; 4. Ventilation gap; 5. Nut; 6. Trolley compartment; 7. Through hole; 8. Grate bar; 9. Ventilation hole; 10. Reference surface; 11. Inclined surface; 12. Bellows; 20. Conical surface; 21. Tip; 31. Protrusion. Detailed Implementation

[0025] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0026] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0028] Example 1

[0029] like Figure 1 and Figure 2 and Figure 3 As shown, a grate bar pressure block for suppressing edge effect includes a pressure seat 1, a bolt 2 and a pressure plate 3. The pressure seat 1 has a reference surface 10. The bolt 2 is set on the reference surface 10. The extension direction of the bolt 2 is aligned with the side wall of the trolley compartment 6. A through hole 7 is provided on the side wall of the trolley compartment 6. The bolt 2 is used to be set on the side wall of the trolley compartment 6, that is, the bolt 2 passes into the through hole 7, so that the bolt 2 suspends the pressure seat 1.

[0030] The pressure plate 3 is located at the bottom of the pressure base 1 and extends away from the reference surface 10. The pressure plate 3 is located above the grate bars 8. The ore is fed into the trolley bin 6 through the opening at the top. The ore falls into the trolley bin 6, and some of the ore falls onto the pressure plate 3. Multiple grate bars 8 are set at the bottom of the trolley bin 6, and ventilation holes 9 are formed between adjacent grate bars 8. The ore burns from top to bottom. The ore particles on the pressure plate 3 are larger than the ore particles in the middle. This results in a larger gap between the ore particles at the edge. The pressure plate 3 separates the ore particles at the edge from the ventilation holes 9 at the edge, which slows down the airflow between the ore particles at the edge and the ventilation holes 9 at the edge. This slows down the burning speed of the ore particles at the edge, making the burning speed of the ore particles at the edge synchronize with the burning speed of the ore particles in the middle.

[0031] A bellows 12 is installed below the trolley compartment 6, and an exhaust fan (not shown in the figure) is installed inside the bellows 12. The air intake end of the bellows 12 is aligned with the bottom of the trolley compartment 6, that is, the air intake end of the bellows 12 is aligned with the vent 9, so that the air inside the trolley compartment 6 flows downward.

[0032] Bolt 2 passes through the side wall of the trolley compartment 6, that is, bolt 2 passes through the through hole 7. A nut 5 is provided at the outer end of bolt 2. Bolt 2 and nut 5 mesh. When bolt 2 is tightened, bolt 2 is attached to the outer surface of the side wall of the trolley compartment 6, and the reference surface 10 is attached to the inner surface of the side wall of the trolley compartment 6.

[0033] Bolt 2 has a conical surface 20 on its outer circumference. The thicker end of the conical surface 20 abuts against the pressure seat 1, and the thinner end of the conical surface 20 is aligned with the side wall of the trolley compartment 6. In this way, when bolt 2 is in the through hole 7, the conical surface 20 can be pressed against the outer surface of the through hole 7, that is, the conical surface 20 can be pressed against the side wall of the trolley compartment 6. Thus, bolt 2 is more firmly fixed by the conical surface 20 and nut 5, and the conical surface 20 can also seal the through hole 7.

[0034] Bolt 2 has a tip 21 extending in the direction of extension, and tip 21 can more easily enter the through hole 7.

[0035] The pressure seat 1 has an inclined surface 11, which is set opposite to the reference surface 10. The inclined surface 11 and the reference surface 10 are located at the two ends of the pressure seat 1, respectively. The pressure plate 3 is located below the lower end of the inclined surface 11. When the ore is fed into the upper end of the trolley compartment 6, some of the ore will fall on the upper end of the pressure seat 1. With the inclined surface 11, some of the ore will fall on the inclined surface 11 and slide down from the inclined surface 11 until it slides onto the pressure plate 3.

[0036] Figure 4 This is a top view of the grate bar pressing block. The pressing plate 3 extends to both ends of the side wall of the trolley compartment 6. In this example, the trolley compartment 6 has four side walls, and each side wall is provided with a grate bar pressing block.

[0037] Figure 5 Ventilation holes 9 are formed between adjacent grate bars 8. There is ore material above the ventilation holes 9, and the ventilation holes 9 are connected to the air intake end of the air box 12 below.

[0038] Example 2

[0039] like Figure 6 and Figure 7 As shown, unlike Embodiment 1, the bottom edge of the pressure plate 3 is provided with a protrusion 31. The protrusion 31 abuts against the grate bar 8. The protrusion 31 is located at the edge of the ventilation gap 4. The number of protrusions 31 is set as needed. The protrusions 31 have a supporting effect on the pressure plate 3 and prevent the ore from bending the pressure plate 3. The protrusions 31 are set close to the center of the trolley compartment 6.

[0040] In other embodiments, the protrusion 31 may also be replaced by a column.

[0041] The above embodiments are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be used to limit the protection scope of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the protection scope of this utility model.

Claims

1. A grate bar pressure block for suppressing edge effects, comprising a pressure seat (1), bolts (2), and a pressure plate (3), characterized in that, The pressure seat (1) has a reference surface (10), the bolt (2) is set on the reference surface (10), the extension direction of the bolt (2) is aligned with the side wall of the trolley compartment, the pressure plate (3) is set at the bottom of the pressure seat (1), the pressure plate (3) extends away from the reference surface (10), the bolt (2) is used to be set on the side wall of the trolley compartment, the pressure plate (3) is located above the grate bar, and an air gap (4) is formed between the pressure plate (3) and the grate bar.

2. The grate bar pressing block for suppressing edge effects according to claim 1, characterized in that, The bolt (2) passes through the side wall of the trolley compartment, and a nut (5) is provided at the outer end of the bolt (2).

3. The grate bar pressing block for suppressing edge effects according to claim 1, characterized in that, The bolt (2) has a conical surface (20) on its outer periphery. The thick end of the conical surface (20) abuts against the pressure seat (1), and the thin end of the conical surface (20) is aligned with the side wall of the trolley compartment.

4. The grate bar pressing block for suppressing edge effects according to claim 1, characterized in that, The bolt (2) has a pointed tip (21) in the direction of extension.

5. The grate bar pressing block for suppressing edge effects according to claim 1, characterized in that, The pressure seat (1) has an inclined surface (11) which is opposite to the reference surface (10), and the pressure plate (3) is located below the lower end of the inclined surface (11).

6. The grate bar pressing block for suppressing edge effects according to claim 1, characterized in that, The bottom edge of the pressure plate (3) is provided with a protrusion (31), which abuts against the grate bar.

7. The grate bar pressing block for suppressing edge effects according to claim 1, characterized in that, The pressure plate (3) extends to both ends of the side wall of the trolley compartment.

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