Device for manufacturing furnace top end socket of blast furnace hot blast stove

Abstract

The utility model belongs to the technical field of blast furnace hot blast stoves, and discloses a blast furnace hot blast stove top seal head manufacturing device. A plurality of explorators (2) are arranged close to the upper part of the stand column (1), are arranged along the periphery of the stand column (1) close to the upper part at intervals, and are the same in shape and size. And the plurality of explorators (2) are arranged close to the upper part of the stand column (1) and have the same height. And the adjacent explorators (2) are connected through the connecting sheets (3). The device for manufacturing the furnace top end socket of the blast furnace hot blast stove is simple in structure, convenient to manufacture, simple and convenient to operate, capable of conveniently and quickly manufacturing the furnace top end socket, capable of being spliced and formed on the use site, capable of effectively improving manufacturing quality and labor efficiency, capable of reducing transfer difficulty and capable of meeting the overhaul requirement of the blast furnace hot blast stove.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of blast furnace hot blast stove, more specifically, relate to a kind of blast furnace hot blast stove furnace top head manufacturing device. BACKGROUND

[0002] In prior art, blast furnace hot blast stove overhaul needs to replace furnace top head, the head is hemispherical, and forging one-time forming mode is used when manufacturing.And such mode, because furnace top head size is larger, weight is heavier, processing and transfer are extremely inconvenient, affect manufacturing efficiency.

[0003] In prior art, there is a cutting method of the dome furnace shell of blast furnace hot blast stove with the name of "a cutting method of the dome furnace shell of blast furnace hot blast stove", and the publication (announcement) number is "CN113000981A".The technology includes: a pre-melting step: forming a preliminary molten pool at the top end of the dome furnace shell or the intersection point of the transverse weld and the longitudinal weld of the furnace shell assembly, and heating the molten pool to a liquid state;Cutting step: oxygen blowing and melting cutting are carried out on the dome furnace shell;The method has high cutting efficiency, greatly reduces labor intensity, can save preparatory work such as row grid, and has good popularization value.In prior art, there is a dome top steel shell weld on-line strengthening method of blast furnace hot blast stove with the name of "a dome top steel shell weld on-line strengthening method of blast furnace hot blast stove", and the publication (announcement) number is "CN109079358A".The technology belongs to the technical field of blast furnace smelting, and discloses a dome top steel shell weld on-line strengthening method of blast furnace hot blast stove, which comprises: under the condition of hot blast stove combustion operation, the weld of the dome top steel shell cracking part is subjected to open groove welding to ensure that the weld does not leak air;Cover and weld a plurality of reinforcing plates on the weld of the dome top steel shell cracking part;Wherein, welding gaps are arranged between the plurality of reinforcing plates to form welding structure stress release points.The method provided by the present application can realize efficient weld maintenance on-line.

[0004] However, the technology does not involve the technical problems and technical solutions of the present application. UTILITY MODEL CONTENT

[0005] The technical problem to be solved by the utility model is: in view of the deficiencies of prior art, a blast furnace hot blast stove furnace top head manufacturing device is provided, which has simple structure, is easy to manufacture and operate, can realize furnace top head manufacturing conveniently and quickly, can be assembled and formed on site, effectively improves manufacturing quality and labor efficiency, reduces transportation difficulty, and meets the needs of blast furnace hot blast stove overhaul.

[0006] To solve the above technical problems, the technical scheme adopted by the utility model is:

[0007] The utility model discloses a blast furnace hot blast stove furnace top head manufacturing device, a plurality of jigs are arranged near the upper part of the stand column, the plurality of jigs are arranged at intervals along the position near the upper part of the stand column, and the plurality of jigs are the same in shape and size.

[0008] The plurality of jigs are arranged at the same height near the upper portion of the column.

[0009] The adjacent jigs are connected by the connecting sheet.

[0010] The lower end of the column is fixed on the bottom plate, the column is vertically arranged on the bottom plate, the bottom plate is horizontally arranged, the jigs are square plate structures, and the jigs are welded along the axial direction of the column.

[0011] The furnace top head is a semispherical structure.

[0012] The furnace top head comprises a plurality of head assemblies with the same size.

[0013] The jigs are arranged in four, and the head assemblies comprise four.

[0014] The jigs are welded to the column.

[0015] The adjacent jigs are welded by the connecting sheet.

[0016] The column, the jigs, the connecting sheet and the bottom plate are all made of metal materials.

[0017] The technical scheme of the utility model has the advantages that the working principle and beneficial effects are as follows:

[0018] The column is made of a solid rod or a hollow steel pipe, the jigs are made of steel plates, the jigs are arranged in multiple pieces, each jig is welded to the corresponding position near the upper portion of the column, the plurality of jigs are arranged along the column in equal distribution, and the length of the column is greater than the height of the semispherical furnace top head. The size limitation enables each jig to abut against the corresponding head assembly, realizes the manufacturing and limiting of the head assembly, facilitates the welding of the furnace top head on site, simplifies the process and reduces the labor intensity. When the device is used, the furnace top head is made by splicing and welding of the plurality of head assemblies, the adjacent head assemblies are arranged in close contact, each jig is used for limiting the corresponding head assembly, reliable positioning of the head assembly is realized, welding is facilitated, welding precision is guaranteed, and welding efficiency is improved. The integral furnace top head does not need to be made, but is made by splicing and welding of the head assemblies with small volume and weight. BRIEF DESCRIPTION OF DRAWINGS

[0019] The content expressed by each drawing of the present specification and the marks in the drawings are briefly described as follows:

[0020] Figure 1 It is a structural schematic view of the furnace top head manufacturing device of the blast furnace hot blast stove.

[0021] Figure 2This is a schematic diagram of the structure of the blast furnace hot blast stove top end cap manufacturing device described in this utility model during use;

[0022] The labels in the attached diagram are as follows: 1. Column; 2. Template; 3. Connecting piece; 4. Bottom plate; 5. Furnace top end cap; 6. End cap assembly. Detailed Implementation

[0023] The following description, with reference to the accompanying drawings, provides a more detailed explanation of the specific embodiments of this utility model, including the shape and structure of each component, the relative positions and connections between the parts, the functions and working principles of each part:

[0024] As attached Figure 1 -Appendix Figure 2 As shown, this utility model is a device for manufacturing the top end cap of a blast furnace hot blast stove. Multiple templates 2 are arranged near the upper part of a column 1, with gaps between them along the circumference of the column 1 near the upper part. The templates 2 are identical in shape and size. This structure addresses the shortcomings of existing technologies by proposing an improved technical solution. In this structural design, the column 1 is made of solid rods or hollow steel pipes. The templates 2 are made of steel plates, and multiple templates 2 are provided. Each template 2 is a square plate, and each template 2 is welded to a corresponding position near the upper part of the column 1. The multiple templates 2 are evenly distributed along the circumference of the column 1. The length of the column 1 must be greater than the height of the hemispherical top end cap 5. The length of the template 2 is calculated based on the dimension of the upper circle of the top end cap 5. The position where the template 2 is welded to the column 1 is calculated based on the height of the hemispherical top end cap 5. This size limitation allows each template to abut against its corresponding head assembly, facilitating the fabrication and positioning of the head assembly. This makes on-site welding of the furnace top head 5 easier, simplifies the process, and reduces labor intensity. When using this device, the furnace top head 5 is constructed by welding together multiple head assemblies, with adjacent assemblies closely fitted. Each template is used to position its corresponding head assembly, ensuring reliable positioning, facilitating welding, guaranteeing welding accuracy, and improving welding efficiency. It eliminates the need for a single, integral furnace top head; instead, it is constructed by welding together smaller, lighter head assemblies. The blast furnace hot blast stove top head fabrication device described in this invention has a simple structure, is easy to manufacture, and simple to operate. It enables convenient and quick fabrication of the furnace top head, allowing for on-site assembly and effectively improving manufacturing quality and labor efficiency, reducing transportation difficulties, and meeting the maintenance needs of the blast furnace hot blast stove.

[0025] Multiple jigs 2 are arranged at the same height near the upper position of the column 1. The above structure, multiple jigs 2 are the same in shape, size, and arranged height on the column 1, and the included angle between adjacent jigs 2 is the same, and multiple head assemblies 6 are the same in shape and size. Adjacent jigs 2 are connected by connecting plates 3. The above structure, the connecting plates are welded between adjacent jigs 2, the connecting plates are made of steel plates, and the connecting plate material can be made of leftover materials, saving costs.

[0026] The furnace top head 5 is a semispherical structure. The lower end of the column 1 is fixed on the bottom plate 4, and the column 1 is vertically arranged on the bottom plate 4. The bottom plate 4 is horizontally arranged, the jig 2 is a square plate structure, and the jig 2 is welded along the axial direction of the column 1. The above structure, when the furnace top head 5 is spot-welded, the bottom plate 4 is a steel plate, and the lower circular part of the semispherical furnace top head 5 to be spot-welded is drawn on the upper plane position of the bottom plate 4. The column 1 is fixed on the bottom plate 4, and the column 1 is fixed at the center position of the lower circular part, so that the lower part of each head assembly 6 respectively coincides with the corresponding position of the circular contour line drawn in advance on the bottom plate 4, and the upper part of each head assembly 6 respectively coincides with the corresponding jig 2. After the multiple head assemblies 6 are arranged in position, the jigs 2 are reliably positioned, and then the multiple head assemblies 6 are spot-welded. Through the structure of the utility model, the spot-welding process is simplified, and the spot-welding precision is ensured.

[0027] The furnace top head 5 includes multiple head assemblies of the same size. The jigs 2 are arranged in four, and the head assemblies include four. The jigs 2 are welded to the column 1. Adjacent jigs 2 are welded by connecting plates 3. The above structure, the jigs 2 are reliably connected to the column 1, the connecting plates 3 reliably realize the connection and positioning of adjacent jigs, and deformation of the jigs 2 under stress is avoided.

[0028] The column 1, the jig 2, the connecting plate 3, and the bottom plate 4 are all made of metal materials. The above structure has high strength, the device can be repeatedly used, and the cost is low. For different models and sizes of furnace top heads, corresponding size manufacturing devices can be made.

[0029] The utility model discloses a blast furnace hot blast stove furnace top sealing head manufacturing installation, structural setting, set up stand, and stand 1 adopts solid bar spare or hollow steel pipe to make, and the jigs 2 are made through the steel sheet, and the jigs 2 are set up multiple, and the shape of the jigs 2 is square board spare, and each jig 2 is welded in the corresponding position of stand 1 close to the upper portion respectively, and multiple jigs 2 are along the equidistribution of stand 1 one week and set up, and the length of stand 1 is greater than the height of the hemispherical furnace top sealing head 5, and the length size of the jigs 2 is calculated through the size of the circle on the furnace top sealing head 5. The position of the jigs 2 welded on stand 1 is calculated through the height of the hemispherical furnace top sealing head 5. Such size limit makes every jig can abut the corresponding sealing head assembly, realizes that sealing head assembly is made and is limited, and the welding of furnace top sealing head is convenient on the spot, simplifies the process, and reduces the labor intensity. When using the device of the utility model, because the furnace top sealing head 5 is made through the multiple sealing head assembly 6 and is welded, the adjacent sealing head assembly 6 is arranged in close contact, and every jig 2 is used for limiting the corresponding sealing head assembly 6, realizes the reliable positioning of sealing head assembly 6, and is convenient for welding, guarantees the welding accuracy, improves the welding efficiency. It is not necessary to make the integral furnace top sealing head, but is made through the sealing head assembly 6 of small volume and weight and is welded.

[0030] The utility model has been described above in conjunction with the drawings, and obviously, the specific implementation of the utility model is not limited by the above-mentioned mode, as long as various improvements are made using the method concept and technical scheme of the utility model, or the concept and technical scheme of the utility model is directly applied to other occasions without improvement, which is within the protection scope of the utility model.

Claims

1. A device for manufacturing the top end cap of a blast furnace hot blast stove, characterized in that: Multiple templates (2) are set near the top of the column (1). The multiple templates (2) are set around the top of the column (1) with gaps. The multiple templates (2) have the same shape and size.

2. The apparatus for fabricating the top end cap of a blast furnace hot blast stove according to claim 1, characterized in that: Multiple templates (2) are set at the same height near the upper part of the column (1).

3. The apparatus for fabricating the top end cap of a blast furnace hot blast stove according to claim 1 or 2, characterized in that: Adjacent templates (2) are connected by connecting pieces (3).

4. The apparatus for fabricating the top end cap of a blast furnace hot blast stove according to claim 1 or 2, characterized in that: The lower end of the column (1) is fixed on the bottom plate (4). The column (1) is arranged vertically on the bottom plate (4). The bottom plate (4) is arranged horizontally. The template (2) is a square plate structure. The template (2) is welded along the axial direction of the column (1).

5. The apparatus for fabricating the top end cap of a blast furnace hot blast stove according to claim 1 or 2, characterized in that: The furnace top end cap (5) is a hemispherical structure.

6. The apparatus for fabricating the top end cap of a blast furnace hot blast stove according to claim 5, characterized in that: The furnace top head (5) includes multiple head assemblies (6) of the same size.

7. The apparatus for fabricating the top end cap of a blast furnace hot blast stove according to claim 6, characterized in that: The template (2) is provided in four parts, and the end cap assembly (6) includes four parts.

8. The apparatus for fabricating the top end cap of a blast furnace hot blast stove according to claim 3, characterized in that: The template (2) is welded to the column (1).

9. The apparatus for fabricating the top end cap of a blast furnace hot blast stove according to claim 8, characterized in that: Adjacent templates (2) are welded together by connecting pieces (3).

10. The apparatus for fabricating the top end cap of a blast furnace hot blast stove according to claim 4, characterized in that: The column (1), template (2), connecting piece (3) and bottom plate (4) are all made of metal.

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