Repairing device, grid grate and discharging device

Abstract

The utility model discloses a repairing device, a grid grate and a discharging device, and relates to the technical field of large blast furnace metallurgical equipment.The repairing device comprises an inserting plate assembly and a repairing device, the inserting plate assembly comprises a plurality of inserting plates, and the inserting plates are detachably inserted into the damaged grid grate to repair the damaged grid grate. The inserting plate is inserted into the grid grate, so that the worn part of the grid grate is repaired, and the manufacturing cost caused by repairing the grate is avoided; in the repairing process, manual repair welding operation is changed into existing wear-resisting plate inserting operation, the quick repairing process of a worn part is promoted, the influence of long-time repairing incapability on unloading is avoided, the unloading punctuality rate is greatly guaranteed, the safety risk brought to personnel operation is reduced, the fault processing time is shortened, and the working efficiency is improved. The labor intensity of production personnel is reduced; and meanwhile, the use requirement for repeated repair of the worn part of the existing unloading grid grate of the blast furnace tippler is met, and the application range is wide.

Description

Technical Field

[0001] The present application belongs to the technical field of blast furnace metallurgical equipment, and specifically relates to a repair device, a grid grate and a feeding device. Background Art

[0002] With the development of metallurgical equipment technology, the smelting intensity of contemporary large and medium-sized blast furnaces has been continuously improved, and the damage of the lining of the furnace top charging equipment has had an increasingly prominent impact on blast furnace production. Large blast furnaces with a capacity of more than 2,000 cubic meters have a daily raw material load of more than 10,000 tons through the furnace top equipment, and the daily loading capacity of super-large blast furnaces exceeds 20,000 tons, of which sintered ore and coke with strong wear resistance are the main ones, which will cause great erosion and wear on the equipment. Most of these furnace materials are transported by train and unloaded by car tippers. In order to prevent large pieces of material from blocking the silo or scratching the belt, a square grate is designed on each silo. When tipping over, the furnace material scours the square grate for a long time, resulting in serious local wear of the grate. Temporary welding can only be used. There are great safety hazards in the upper part of the silo. At the same time, the welding workload is large and it is not easy to replace. How to repair the square grate online and prevent further wear has become a problem that needs to be solved urgently. Utility Model Content

[0003] In order to solve the technical problem that the current square grate is inconvenient to repair, the present application provides a repair device, a square grate and a feeding device.

[0004] In order to solve the above technical problems, this application adopts the following technical solutions:

[0005] A first aspect of an embodiment of the present application provides a repair device for repairing a grid grate, the repair device comprising: a plug-in plate assembly, comprising a plurality of plug-in plates, and the damaged grid grate is repaired by detachably plugging the plug-in plates into the damaged grid grate.

[0006] In some embodiments, the plug-in plate includes: a connecting portion, on which is provided a connecting groove for single-sided clamping with the square grate; a protective portion fixed to the upper end of the connecting portion, and when the connecting portion is plugged into the damaged grate grid, the protective portion replaces the corresponding grate grid to work.

[0007] In some embodiments, the connecting groove is a rectangular groove.

[0008] In some embodiments, the outer contour of the guard portion is the same as the single side size of the grid on the square grate to be repaired.

[0009] In some embodiments, the depth of the connecting groove is greater than the height of the grid grate.

[0010] In some embodiments, the connecting part is made of high chromium cast iron.

[0011] In some embodiments, the protective part is made of high chromium cast iron.

[0012] In some embodiments, the connecting groove is arranged at the central position of the connecting part.

[0013] In the second aspect of the embodiments of the present application, a square grid is provided. The square grid is made of a plurality of square bodies, and the plug-in plate is inserted on the damaged square body.

[0014] In the third aspect of the embodiments of the present application, a blanking device is provided, which is characterized by comprising a dumper and a feeder, and the square grid is arranged between the feeder and the dumper.

[0015] It can be seen from the above technical solutions that the present application has at least the following advantages and positive effects:

[0016] In a repair device of the present application, by arranging the plug-in plate to be inserted on the square grid, the worn part of the square grid is repaired, avoiding the manufacturing cost caused by repairing the grid; the repair process has changed from manual repair welding operation to the current plug-in wear-resistant plate operation, promoting the rapid repair process of the worn part, avoiding the impact on car unloading caused by the inability to repair for a long time, greatly ensuring the on-time rate of car unloading, reducing the safety risk to personnel operation, reducing the time for troubleshooting, and reducing the labor intensity of production personnel; at the same time, it meets the use requirements for multiple repairs of the worn parts of the square grid of the existing blast furnace dumper, and has a wide application range.

[0017] In a square grid of the present application, by arranging the plug-in plate to be inserted on the square grid, the worn part of the square grid is repaired, avoiding the manufacturing cost caused by repairing the grid; the repair process has changed from manual repair welding operation to the current plug-in wear-resistant plate operation, promoting the rapid repair process of the worn part, avoiding the impact on car unloading caused by the inability to repair for a long time, greatly ensuring the on-time rate of car unloading, reducing the safety risk to personnel operation, reducing the time for troubleshooting, and reducing the labor intensity of production personnel; at the same time, it meets the use requirements for multiple repairs of the worn parts of the square grid of the existing blast furnace dumper, and has a wide application range.

[0018] A blanking device in the present application repairs the worn parts of the square grid grate by inserting an insertion plate into the square grid grate, avoiding the manufacturing costs incurred in repairing the grate; the repair process has changed from manual repair welding operation to the current operation of inserting wear-resistant plates, promoting the rapid repair process of the worn parts, avoiding the impact on car unloading caused by the inability to repair for a long time, greatly ensuring the on-time rate of car unloading, reducing the safety risks to personnel operations, reducing the time for troubleshooting, and reducing the labor intensity of production personnel; at the same time, it meets the usage requirements for multiple repairs of the worn parts of the square grid grate of the existing blast furnace dumper in the present application, and has a wide application range. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for description in the embodiments. Obviously, the following-described drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0020] Figure 1 is the front view of the insertion plate of a repair device in an embodiment of the present application;

[0021] Figure 2 is the side view of the insertion plate of a repair device in an embodiment of the present application;

[0022] Figure 3 is the structural schematic diagram of a blanking device in an embodiment of the present application.

[0023] The description of the reference numerals in the drawings is as follows: 1. Insertion plate; 11. Connection part; 12. Protection part; 2. Square grid grate; 3. Silo; 4. Feeder; 5. Conveyor belt; 6. Dumper. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] In order to enable those skilled in the art in the technical field to which the present application belongs to more clearly understand the present application, the following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.

[0025] Please refer to Figure 1 and Figure 2 .

[0026] Figure 1 is the front view of the insertion plate of a repair device in an embodiment of the present application, Figure 2It is a side view of an insertion board of a repair device in an embodiment of the present application. As shown in the figure, this device is used to repair a square grid grate. The repair device includes: an insertion board assembly, which includes a plurality of insertion boards 1. By detachably inserting the insertion boards 1 into the damaged square grid grate, the damaged grate is repaired. By setting the insertion boards 1 to be inserted into the square grid grate, the worn parts of the square grid grate are repaired, avoiding the manufacturing costs incurred in repairing the grate; the repair process has changed from manual repair welding operation to the current operation of inserting wear-resistant plates, promoting the rapid repair process of the worn parts, avoiding the impact on car unloading caused by the inability to repair for a long time, greatly ensuring the on-time rate of car unloading, reducing the safety risks to personnel operations, reducing the time for troubleshooting, and reducing the labor intensity of production personnel; at the same time, it meets the usage requirements for multiple repairs of the worn parts of the current square grid grate of the blast furnace car dumper, and has a wide application range.

[0027] Please refer to Figure 2 , in some embodiments, the insertion board 1 includes: a connection part 11, on which a connection groove for single-sided clamping with the square grid grate is provided; a protection part 12, fixed to the upper end of the connection part 11. When the connection part 11 is inserted into the damaged grate grid, the protection part 12 works instead of the corresponding grate grid.

[0028] Please refer to Figure 2 In some embodiments, the connection groove is a rectangular groove. It can fit well with the frame of the grate.

[0029] Please refer to Figure 2 , in some embodiments, the outer contour of the protection part 12 is the same as the single-sided dimension of the grid on the square grid grate to be repaired.

[0030] Please refer to Figure 2 In some embodiments, the depth of the connection groove is greater than the height of the square grid grate.

[0031] In some embodiments, the connection part 11 is made of high-chromium cast iron. The protection part 12 is made of high-chromium cast iron, which is strong and durable.

[0032] In some embodiments, the connection groove is arranged at the central position of the connection part 11. Ensuring that the inserted board is evenly stressed after installation.

[0033] The second aspect of the embodiment of the present application provides a square grid grate, which is made of a plurality of square bodies, and the above-mentioned insertion board 1 is inserted into the damaged square body.

[0034] Please refer to Figure 3 , Figure 3 It is a schematic structural diagram of a blanking device in an embodiment of the present application.

[0035] In the third aspect of the embodiments of the present application, a blanking device includes a car dumper 6 and a feeder 4, and a square grid grate 2 is arranged between the feeder 4 and the car dumper 6.

[0036] Specifically, the square grid grate 2 is arranged on the bin 3 of the feeder 4, and a conveyor belt 5 is arranged at the discharge port of the feeder 4.

[0037] It can be seen from the above technical solutions that the present application has at least the following advantages and positive effects:

[0038] In a repair device of the present application, by arranging an insertion plate inserted on the square grid grate to repair the worn part of the square grid grate, the manufacturing cost caused by repairing the grate is avoided; the repair process has changed from manual repair welding operation to the current operation of inserting wear-resistant plates, which promotes the rapid repair process of the worn part, avoids the impact on car unloading caused by the inability to repair for a long time, greatly ensures the on-time rate of car unloading, reduces the safety risk to personnel operation, reduces the time for troubleshooting, and reduces the labor intensity of production personnel; at the same time, it meets the usage requirements for multiple repairs of the worn parts of the square grid grate for the current existing blast furnace car dumper, and has a wide application range.

[0039] In a square grid grate of the present application, by arranging an insertion plate inserted on the square grid grate to repair the worn part of the square grid grate, the manufacturing cost caused by repairing the grate is avoided; the repair process has changed from manual repair welding operation to the current operation of inserting wear-resistant plates, which promotes the rapid repair process of the worn part, avoids the impact on car unloading caused by the inability to repair for a long time, greatly ensures the on-time rate of car unloading, reduces the safety risk to personnel operation, reduces the time for troubleshooting, and reduces the labor intensity of production personnel; at the same time, it meets the usage requirements for multiple repairs of the worn parts of the square grid grate for the current existing blast furnace car dumper, and has a wide application range.

[0040] In a blanking device of the present application, by arranging an insertion plate inserted on the square grid grate to repair the worn part of the square grid grate, the manufacturing cost caused by repairing the grate is avoided; the repair process has changed from manual repair welding operation to the current operation of inserting wear-resistant plates, which promotes the rapid repair process of the worn part, avoids the impact on car unloading caused by the inability to repair for a long time, greatly ensures the on-time rate of car unloading, reduces the safety risk to personnel operation, reduces the time for troubleshooting, and reduces the labor intensity of production personnel; at the same time, it meets the usage requirements for multiple repairs of the worn parts of the square grid grate for the current existing blast furnace car dumper, and has a wide application range.

[0041] Unless otherwise clearly defined and limited, the first feature being “on” or “under” the second feature may include direct contact between the first and second features, or may include contact between the first and second features not being direct but through additional features therebetween. Moreover, the first feature being “above”, “over” and “on top of” the second feature includes the first feature being directly above and diagonally above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being “under”, “below” and “beneath” the second feature includes the first feature being directly below and diagonally below the second feature, or merely indicating that the horizontal height of the first feature is less than that of the second feature.

[0042] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms “center”, “longitudinal”, “transverse”, “length”, “width”, “thickness”, “upper”, “lower”, “front”, “rear”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inner”, “outer”, “clockwise” and “counterclockwise” is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application.

[0043] In the present application, unless otherwise clearly defined and limited, the terms “connection”, “fixation” and the like shall be understood in a broad sense. For example, “fixation” may be a fixed connection, a detachable connection, or an integral body; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application may be understood according to specific circumstances.

[0044] In addition, in the present application, the descriptions such as “first” and “second” are only for descriptive purposes and should not be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with “first” and “second” may explicitly or implicitly include one or more features. In the description of the present application, the meaning of “a plurality of” is two or more, unless otherwise specifically defined.

[0045] Although the embodiments of the present application have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A repair device for repairing a grid grate, characterized in that: The repair device comprises: The plug-in plate assembly includes a plurality of plug-in plates, and the damaged grate is repaired by detachably plugging the plug-in plates into the damaged square grate; The plug-in board comprises: A connecting portion, wherein the connecting portion is provided with a connecting groove for single-side clamping connection with the square grate; The protection part is fixed to the upper end of the connecting part. When the connecting part is plugged into the damaged grate grid, the corresponding grate grid is replaced by the protection part to work.

2. The repair device according to claim 1, characterized in that: The connecting groove is a rectangular groove.

3. The repair device according to claim 1, characterized in that: The outer contour of the protective portion is the same as the single-side size of the grid on the square grate to be repaired.

4. The repair device according to claim 1, characterized in that: The depth of the connecting groove is greater than the height of the square grate.

5. The repair device according to claim 1, characterized in that: The connecting part is made of high chromium cast iron.

6. The repair device according to claim 1, characterized in that: The protection part is made of high chromium cast iron.

7. The repair device according to claim 1, characterized in that: The connecting groove is arranged at the center of the connecting portion.

8. A lattice grate, the lattice grate being made of a plurality of lattices, characterized in that: The damaged lattice body is plugged with an insertion board as described in any one of claims 1 to 7.

9. A feeding device, characterized in that: It comprises a tipper and a feeder, and the square grate as claimed in claim 8 is arranged between the feeder and the tipper.

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