Multi-purpose detection tool for sintering grid section

Abstract

The utility model discloses a sintering grid section multi-purpose detection tool, comprising a detection rack, the rear end of the horizontal table top of the detection rack is provided with an installation starting point limiting block, the horizontal table top is provided with a plurality of grid sections in sequence from back to front, the left and right sides of the horizontal table top are respectively provided with a height limiting rod extending along the front and back direction, and the height limiting rods are arranged on the left and right sides of the horizontal table top. The distance between the upper surface of the height limiting rod and the horizontal table top is the minimum specified height of the grid section, a cover plate is installed on the upper portion of the detection frame, and the distance between the bottom face of the cover plate and the horizontal table top is the maximum specified height of the grid section. Whether the height of the grid section placed on the horizontal table board meets specification requirements can be detected by observing the distance between the upper surface of the grid section and the upper surface of the height limiting rod and the distance between the upper surface of the grid section and the bottom surface of the cover plate from the side face, batch detection of the grid section is achieved, and detection efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sintering machine grate detection, in particular to a multi-purpose detection tool for sintering grate. Background Art

[0002] With the rapid development of the steel industry, the output and quality of natural rich metal ores are far from meeting the requirements of blast furnace smelting. Only artificial rich ores can be formed through sintering process to meet the needs of blast furnace iron smelting. Sintering machine is the key equipment of sintering process. It is composed of sintering trolleys closely connected to form a trolley chain, which is used to load the prepared raw materials. The surface is ignited in the head area, and the lower part of the trolley is ventilated to assist combustion. As the trolley continues to move forward, the raw materials gradually burn from the surface to the bottom until all the raw materials are burned through and agglomerated, thus completing the main process of sintering process and sending them to ring cooling.

[0003] The entire sintering process is carried out on a work surface composed of multiple grates. The function of the grates is to form a trough-shaped space with the trolley railing to accommodate and carry the ore. The length of its service life directly affects the production rate of the sintering machine and the production cost of sintered ore. Therefore, the grate is the most important component of the entire equipment. The quality control and inspection of the grate in the production process are very important. At present, the processing quality and size inspection of the grate mostly adopts the method of manual inspection of each grate. This method consumes a lot of manpower, is inefficient, and takes a long time, which is difficult to meet the high-efficiency needs of modern production. Utility Model Content

[0004] The embodiment of the utility model provides a multi-purpose inspection tool for sintering grate bars, which is used for inspecting multiple grate bars at one time and realizing batch inspection of grate bars.

[0005] In order to achieve the above-mentioned purpose of the utility model, the utility model provides a multi-purpose inspection tool for sintering grate bars, including an inspection frame, the upper surface of the inspection frame is a horizontal platform surface for placing grate bars, the extension direction of the long side of the horizontal platform surface is the front-to-back direction, and correspondingly, the extension direction of the short side of the horizontal platform surface is the left-to-right direction, and the rear end of the horizontal platform surface is provided with an installation starting point limit block, and a plurality of grate bars are sequentially placed on the upper edge of the horizontal platform surface in a direction from back to front, each grate bar extends in the left-to-right direction and is tightly attached to each other, the rear end face of the grate bar at the rear end is tightly attached to the installation starting point limit block, and a height limit line extending in the front-to-back direction is provided on both sides of the horizontal platform surface. The height limiting rod is located at the outer side of the grate bars placed on the horizontal surface, and the height of the grate bars placed on the horizontal surface exceeding the horizontal surface is the height of the grate bars. The distance between the upper surface of the height limiting rod and the horizontal surface is the minimum specified height of the grate bars. A cover plate is installed on the upper part of the detection frame, and the rear end of the cover plate is rotatably connected to the detection frame through a rotating shaft. A support plate is provided at the front end of the cover plate. When the cover plate rotates around the rotating shaft until the support plate contacts the horizontal surface and is supported by the support plate, that is, the cover plate is in the covering position, the cover plate is parallel to the horizontal surface and covers the top of the grate bars, and the distance between the bottom surface of the cover plate and the horizontal surface is the maximum specified height of the grate bars.

[0006] When in use, first open the cover plate, load multiple grate bars onto the horizontal surface of the inspection frame in sequence, then close the cover plate, and observe the distance between the upper surface of the grate bars and the upper surface of the height limit rod and the bottom surface of the cover plate from the side to detect whether the height of the grate bars placed on the horizontal surface meets the specification requirements. When the height of the grate bars is lower than the minimum specified height, the upper surface of the grate bars on the horizontal surface is lower than the upper surface of the height limit rod. When the height of the grate bars is higher than the maximum specified height, the grate bars will interfere with the closing of the cover plate. When any of the above two situations occurs, it is shown that the grate bars do not meet the specification requirements and are unqualified products that need to be eliminated.

[0007] Further preferably, the cover plate is provided with a plurality of observation holes at intervals, and when the cover plate is closed, each observation hole is located directly above the blast opening between the corresponding two grate bars. The gap gauge can detect whether the size of the blast opening between the two grate bars is qualified through the observation holes.

[0008] Furthermore, the horizontal surface is provided with an opening for accommodating the connection part at the bottom of the grate bar, so that the horizontal surface only supports the left and right ends of the grate bar, and the connection part at the bottom of the grate bar is provided with two assembly holes for connection and assembly. When the grate bar is installed on the sintering table frame, two round rods are inserted into the assembly holes for fixing. In order to detect whether the specifications and positions of the assembly holes are qualified, preferably, the detection frame is provided with two detection shafts that match the assembly holes, and two mounting holes for installing the detection shafts are provided at the corresponding positions of the front end and / or the rear end of the detection frame. The detection shaft is slidably installed in the corresponding mounting holes, and the detection shaft matches the position and size of the corresponding assembly holes of the grate bar placed on the horizontal surface. If the two detection shafts can pass through the assembly holes of each grate bar placed on the horizontal surface in turn, it means that the specifications and positions of the assembly holes of each grate bar are within the tolerance range; if they cannot pass, it means that the hole misalignment is outside the tolerance range.

[0009] The number of grate bars placed on the horizontal surface can be any number, as long as it does not exceed the size of the cover plate after it is covered. Further preferably, in order to enable the tooling to simultaneously detect whether the assembly dimensions of the grate bars in the front-to-back direction are qualified, the number of grate bars placed on the horizontal surface is a fixed number, and the fixed number is determined by the length of the cover plate in the front-to-back direction. Further, a limited observation notch is set at the front end of the cover plate, and the distance between the rear end face of the limited observation notch and the starting point limit block is the minimum specified length of the assembly dimensions of the grate bars in the front-to-back direction, and the distance between the front end face of the limited observation notch and the starting point limit block is the maximum specified length of the assembly dimensions of the grate bars in the front-to-back direction. Only when the front end face of the frontmost grate bar is located in the limited observation notch, the assembly dimensions of the grate bars in the front-to-back direction are qualified.

[0010] Furthermore, the height of the installation starting point limit block is lower than the height of the grate bars to avoid the installation starting point limit block affecting the covering and detection of the cover plate.

[0011] Preferably, an installation starting point limit block is provided on both the left and right sides of the rear end of the horizontal platform surface.

[0012] Preferably, a limiting observation notch is provided on both the left and right sides of the front end of the cover plate.

[0013] One or more technical solutions in the embodiments of the present utility model have at least the following technical effects or advantages:

[0014] The utility model can detect whether the height of the grate bars placed on the horizontal platform meets the specification requirements by observing the distance between the upper surface of the grate bars and the upper surface of the height limit rod and the bottom surface of the cover plate from the side, thereby realizing batch detection of the grate bars and improving the detection efficiency.

[0015] Furthermore, the utility model can also realize functions such as batch detection of tuyere dimensions, batch detection of misalignment tolerance of grate bar assembly holes, and detection of assembly dimensions of multiple grate bars, thereby realizing batch multi-parameter detection of grate bars. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the detection frame of the utility model;

[0018] Figure 3 It is a structural schematic diagram of the cover plate of the utility model;

[0019] Figure 4 This is the structural diagram of the gap gauge;

[0020] Figure 5 It is a schematic diagram of the structure of the assembly holes on the bottom connecting part of the grate bar. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] like Figure 1 , Figure 2 As shown, the embodiment of the utility model provides a multi-purpose inspection tool for sintering grate bars, including an inspection frame 1, the upper surface of the inspection frame 1 is a horizontal surface 2 for placing grate bars 4, the extension direction of the long side of the horizontal surface 2 is the front-to-back direction, and correspondingly, the extension direction of the short side of the horizontal surface 2 is the left-to-right direction, and the rear end of the horizontal surface 2 is provided with an installation starting point limit block 3, and a plurality of grate bars 4 are sequentially placed on the horizontal surface 2 in a direction from the back to the front, and each grate bar 4 extends in the left-to-right direction and is tightly connected to each other. The rear end face of the grate bar 4 at the rear end is closely attached to the installation starting point limit block 3. A height limit rod 5 extending in the front-to-back direction is arranged on both sides of the horizontal platform 2. The height limit rod 5 is located outside the grate bar 4 placed on the horizontal platform 2. The height of the grate bar 4 placed on the horizontal platform 2 exceeding the horizontal platform 2 is the height of the grate bar 4. The distance between the upper surface of the height limit rod 5 and the horizontal platform 2 is the minimum specified height of the grate bar 4. A cover plate 6 is installed on the upper part of the detection frame 1. Figure 3As shown, the rear end of the cover plate 6 is rotatably connected to the detection frame 1 through the rotating shaft 7, and the front end of the cover plate 6 is provided with a support plate 8. When the cover plate 6 rotates around the rotating shaft 7 until the support plate 8 contacts the horizontal surface 2 and is supported by the support plate 8, that is, when the cover plate 6 is in the covering position, the cover plate 6 is parallel to the horizontal surface 2 and covers the top of the grate bars 4, and the distance between the bottom surface of the cover plate 6 and the horizontal surface 2 is the maximum specified height of the grate bars 4.

[0023] When in use, first open the cover plate 6, load multiple grate bars 4 onto the horizontal surface 2 of the inspection frame 1 in sequence, then close the cover plate 6, and by observing the distance between the upper surface of the grate bars 4 and the upper surface of the height limit rod 5 and the bottom surface of the cover plate 6 from the side, it is possible to detect whether the height of the grate bars 4 placed on the horizontal surface 2 meets the specification requirements. When the height of the grate bars 4 is lower than the minimum specified height, the upper surface of the grate bars 4 on the horizontal surface 2 is lower than the upper surface of the height limit rod 5. When the height of the grate bars 4 is higher than the maximum specified height, the grate bars 4 will interfere with the closing of the cover plate 6. When any of the above two situations occurs, it is shown that the grate bars 4 do not meet the specification requirements and are unqualified products that need to be eliminated. In one embodiment, the height of the mounting bosses at the left and right ends of the grate bar 4 is 31.8±1mm. When the size is less than 30.8mm, the upper end surface of the grate bar 4 will not exceed the upper surface of the height limit rod 5. When the size exceeds 32.8mm, the upper end surface of the grate bar 4 will exceed the maximum height limit surface (and the cover plate 6 cannot cover it). By observing the upper and lower height limit surfaces, unqualified products can be directly eliminated.

[0024] Further preferably, the cover plate 6 is provided with a plurality of observation holes 9 at intervals, and when the cover plate 6 is closed, each observation hole 9 is located directly above the blast port between two corresponding grate bars 4. Figure 1 and Figure 4 As shown, the gap gauge 10 can detect whether the size of the blast opening between the two grate bars 4 is qualified through the observation hole 9. In one embodiment, there are 2±0.5mm blast openings on both sides of a single grate bar 4. When the two grate bars 4 are installed together, the size of the blast opening is 3-5mm. When the cover plate 6 is closed, the gap gauge 10 can be used to directly measure the size of the blast opening of the two grate bars 4 through the observation hole 9 to see whether it meets the requirements. The size of the blast opening determines the air output, which will directly affect the sintering efficiency.

[0025] Further, the horizontal surface 2 is provided with an opening for accommodating the connecting portion at the bottom of the grate bar 4, so that the horizontal surface 2 only supports the left and right ends of the grate bar 4. Figure 5 As shown, the connecting portion at the bottom of the grate bar 4 is provided with two assembly holes 11 for connection and assembly. When the grate bar 4 is installed on the sintering table frame, two round rods are inserted into the assembly holes 11 for fixing. In order to detect whether the specification position of the assembly hole 11 is qualified, it is preferred that Figure 1 , Figure 2As shown, the detection frame 1 is provided with two detection shafts 12 matched with the assembly holes 11, and two mounting holes for mounting the detection shafts 12 are provided at corresponding positions of the front end and / or rear end of the detection frame 1. The detection shafts 12 are slidably mounted in the corresponding mounting holes, and the detection shafts 12 match the positions and sizes of the corresponding assembly holes 11 of the grate bars 4 placed on the horizontal surface 2. If the two detection shafts 12 can pass through the assembly holes 11 of each grate bar 4 placed on the horizontal surface 2 in sequence, it means that the specifications and positions of the assembly holes 11 of each grate bar 4 are within the tolerance range; if they cannot pass through, it means that the hole misalignment is outside the tolerance range. In one embodiment, there are two assembly holes 11 on the grate bar 4, and the assembly holes 11 are fixed by passing two φ36 round rods after the grate bar 4 is installed on the sintering table frame. If the holes of the side-by-side grate bars 4 are misaligned a lot, the round rod will not pass through. Two mounting holes are designed at both ends of the detection frame 1, and two φ36 detection shafts 12 are used to pass from one side through the assembly holes 11 of each grate bar 4 to the other side. If they can pass through, it means that the assembly hole 11 is within the tolerance range. If they cannot pass through, it means that the assembly hole 11 is misaligned outside the tolerance range.

[0026] The number of grate bars 4 placed on the horizontal surface 2 can be any number, as long as it does not exceed the size of the cover plate 6 after being covered. Further preferably, in order to enable the tooling to simultaneously detect whether the assembly size of the grate bars 4 in the front-to-back direction is qualified, the number of grate bars 4 placed on the horizontal surface 2 is a fixed number, and the fixed number is determined by the length of the cover plate 6 in the front-to-back direction. Further, as Figure 1 , Figure 3 As shown, the front end of the cover plate 6 is provided with a limited observation notch 13, and the distance between the rear end face of the limited observation notch 13 and the starting point limit block 3 is the minimum specified length of the assembly dimension of the grate bar 4 in the front-to-back direction, and the distance between the front end face of the limited observation notch 13 and the starting point limit block 3 is the maximum specified length of the assembly dimension of the grate bar 4 in the front-to-back direction. Only when the front end face of the frontmost grate bar 4 is located in the limited observation notch 13, the assembly dimension of the grate bar 4 in the front-to-back direction is qualified. In one embodiment, the product width dimension is 49±0.5mm, and the total installation width dimension of 20 grate bars 4 is between 970 and 990mm. When the grate bar 4 is placed on the detection frame 1, the limited observation notch 13 can directly determine whether the total assembly dimension is qualified. If the total length is less than 970mm, the total installation distance of the grate bar 4 will not exceed the rear end face of the limited observation notch 13. If the total length is greater than 990 mm, the total installation distance of the grate bars 4 will exceed the front end surface of the position-limiting observation notch 13 (and the cover plate 6 will not be able to cover it).

[0027] Furthermore, the height of the installation starting point limit block 3 is lower than the height of the grate bars 4 to prevent the installation starting point limit block 3 from affecting the covering and detection of the cover plate 6 .

[0028] Preferably, an installation starting point limit block 3 is provided on both the left and right sides of the rear end of the horizontal platform surface 2.

[0029] Preferably, a position limiting observation notch 13 is provided on both the left and right sides of the front end of the cover plate 6 .

[0030] It should be noted that the above embodiments illustrate the present invention rather than limit it, and that those skilled in the art may design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference symbol between brackets should not be constructed as a limitation to the claims. The words "comprise" or "include" do not exclude the presence of elements or steps not listed in the claims. The word "one" or "an" preceding an element does not exclude the presence of a plurality of such elements. The use of the words first, second, and third, etc. does not indicate any order, and these words may be interpreted as names.

[0031] All features disclosed in this specification, except mutually exclusive features, can be combined in any way.

[0032] Any feature disclosed in this specification (including any additional claims, abstract and drawings), unless otherwise stated, may be replaced by other equivalent or alternative features with similar purposes. That is, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.

[0033] The present invention is not limited to the above-mentioned specific implementation modes, but extends to any new features or any new combination disclosed in this specification, as well as any new method or process steps or any new combination disclosed.

Claims

1. A multi-purpose inspection tool for sintering grates, characterized in that: The detection frame comprises a detection frame, the upper surface of the detection frame is a horizontal surface for placing grate bars, the rear end of the horizontal surface is provided with an installation starting point limit block, a plurality of grate bars are placed in sequence along the upper direction of the horizontal surface from the back to the front, each grate bar extends in the left-right direction and is close to each other, the rear end surface of the grate bar at the rear end is close to the installation starting point limit block, a height limit rod extending in the front-back direction is provided on the left and right sides of the horizontal surface, the height of the grate bar placed on the horizontal surface exceeding the horizontal surface is the height of the grate bar, the distance between the upper surface of the height limit rod and the horizontal surface is the minimum specified height of the grate bar, a cover plate is installed on the upper part of the detection frame, the rear end of the cover plate is rotatably connected to the detection frame through a rotating shaft, and a support plate is provided at the front end of the cover plate, when the cover plate rotates around the rotating shaft until the support plate contacts the horizontal surface and is supported by the support plate, the cover plate is parallel to the horizontal surface and covers the top of the grate bar, and the distance between the bottom surface of the cover plate and the horizontal surface is the maximum specified height of the grate bar.

2. A multi-purpose inspection tool for sintering grates as claimed in claim 1, characterized in that: The cover plate is provided with a plurality of observation holes at intervals. When the cover plate is closed, each observation hole is located directly above the blast opening between two corresponding grate bars.

3. A multi-purpose inspection tool for sintering grates as claimed in claim 2, characterized in that: The gap gauge detects the size of the blast opening between the two grate bars through the observation hole.

4. A multi-purpose inspection tool for sintering grates as claimed in claim 1, characterized in that: The horizontal surface is provided with an opening for accommodating the bottom connecting part of the grate bar, and the bottom connecting part of the grate bar is provided with two assembly holes for connection and assembly. The detection frame is provided with two detection shafts matching with the assembly holes, and two mounting holes for installing the detection shafts are provided at corresponding positions of the front end and / or the rear end of the detection frame. The detection shaft is slidably installed in the corresponding mounting holes, and the detection shaft matches the position and size of the corresponding assembly holes of the grate bar placed on the horizontal surface.

5. A multi-purpose inspection tool for sintering grates as claimed in claim 1, characterized in that: The number of grate bars placed on the horizontal surface is a fixed number, which is determined by the length of the cover plate in the front-to-back direction. A limited observation notch is set at the front end of the cover plate. The distance between the rear end face of the limited observation notch and the starting point limit block is the minimum specified length of the assembly dimension of the grate bars in the front-to-back direction, and the distance between the front end face of the limited observation notch and the starting point limit block is the maximum specified length of the assembly dimension of the grate bars in the front-to-back direction.

6. A multi-purpose inspection tool for sintering grates as claimed in claim 1, characterized in that: The height of the installation starting point limit block is lower than the height of the grate bars.

7. A multi-purpose inspection tool for sintering grates as claimed in claim 1 or 6, characterized in that: An installation starting point limit block is arranged on both sides of the left and right sides of the rear end of the horizontal platform surface.

8. A multi-purpose inspection tool for sintering grates as claimed in claim 5, characterized in that: A limiting observation notch is arranged on both the left and right sides of the front end of the cover plate.

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