Blast furnace injection device

Abstract

The utility model discloses a blast furnace injection device which comprises an injection device body, the injection device body comprises a first injection part and a second injection part, a plurality of threaded holes are formed in the first injection part, through mounting holes are correspondingly formed in the end face of the second injection part, and screws are connected with the threaded holes in a screwed mode after penetrating through the mounting holes. And the first blowing part and the second blowing part are butted and fixed. The first blowing part and the second blowing part are butted and fixed through the screw, so that only the first blowing part needs to be replaced after the front end is damaged, and the use cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of blast furnace equipment, in particular to a blast furnace blowing device. Background Art

[0002] The existing blast furnace blowing device body 100 is as follows Figure 1 As shown, the blast furnace injection device body 100 is provided with an air flow channel 101 running through the center. The front end 102 of the blast furnace injection device body 100 extends into the blast furnace hearth, and the rear end of the blast furnace injection device body 100 is provided with a mounting position 103, which is plugged into the mounting hole on the blast furnace. During production, the temperature within the furnace hearth exceeds 1500°C, making the front end 102 of the blast furnace injection device body 100 extremely susceptible to damage. Because the existing blast furnace injection device body 100 is a monolithic structure, damage to the front end 102 requires replacement of the entire body, resulting in high operating costs. Utility Model Content

[0003] In order to solve the current technical problems, the main purpose of the utility model is to provide a blast furnace blowing device. The blowing device body includes a first blowing part and a second blowing part. The first blowing part and the second blowing part are fixed by screws. Therefore, after the front end is damaged, only the first blowing part needs to be replaced, which reduces the cost of use.

[0004] In order to overcome the problems existing in the prior art, the technical solution adopted by the utility model is: a blast furnace blowing device, including a blowing device body, the blowing device body including a first blowing part and a second blowing part, the first blowing part is provided with a plurality of threaded holes, and the end face of the second blowing part is correspondingly provided with a through mounting hole, and the screws are inserted into the mounting holes and screwed into the threaded holes to connect and fix the first blowing part and the second blowing part.

[0005] A first heat insulating pad is installed between the first blowing part and the second blowing part.

[0006] A limiting structure is provided at one end where the first blowing part and the second blowing part are connected.

[0007] The limiting structure is a limiting column and a limiting hole respectively arranged on the end surfaces of the first blowing part and the second blowing part.

[0008] The second blowing part includes a mounting ring and an extension ring, and the mounting hole includes a through hole located on the mounting ring and a countersunk hole located on the extension ring. The screw is inserted into the countersunk hole and the through hole in sequence and then screwed and fixed to the threaded hole on the first blowing part.

[0009] A second thermal insulation pad is installed between the installation ring and the extension ring.

[0010] A limiting structure is provided at one end of the mounting ring that is butted against the extension ring.

[0011] The limiting structure is a limiting column and a limiting hole respectively arranged on the end faces of the mounting ring and the extension ring.

[0012] The utility model has the following beneficial effects:

[0013] 1. The main body of the blowing device of the present invention includes a first blowing part and a second blowing part, which are fixed together by screws. Therefore, when the front end is damaged, only the first blowing part needs to be replaced, which reduces the cost of use.

[0014] 2. The second blowing part of the utility model includes a mounting ring and an extension ring, and a segmented assembly structure, which can further replace the damaged part, thereby further reducing the use cost.

[0015] 3. The first thermal insulation pad and the second thermal insulation pad of the present invention play a role of heat insulation to reduce heat conduction from the first blowing part to the second blowing part and heat conduction from the mounting ring to the extension ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 It is a schematic diagram of the cross-sectional structure of the existing blowing device body.

[0018] Figure 2 This is a schematic diagram of the overall structure of one embodiment of the present invention.

[0019] Figure 3 for Figure 2 Schematic diagram of the main structure.

[0020] Figure 4 for Figure 3 Schematic diagram of the AA cross-section structure.

[0021] Figure 5 for Figure 3 Schematic diagram of the BB cross-section structure.

[0022] Figure 6 for Figure 2 Exploded view of the middle blowing device body.

[0023] Figure 7 This is a schematic cross-sectional view of another embodiment of the present invention.

[0024] Figure 8 For Figure 7 The exploded view of the blowing device body.

[0025] Reference signs:

[0026] Blowing device body 100, air flow channel 101, front end 102, mounting position 103;

[0027] First blowing part 110, threaded hole 111, limiting column 112;

[0028] Second blowing part 120, mounting hole 121, limiting hole 122;

[0029] First heat insulation pad 130, screw 140, mounting ring 150, through hole 151, extension ring 160, countersunk hole 161, second heat insulation pad 170. DETAILED DESCRIPTION

[0030] The technical solutions of the present application will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiments are only some 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 skilled in the art without creative labor fall within the scope of protection of the present application.

[0031] Embodiment 1:

[0032] Referring to Figures 2-6 The present application provides a blast furnace blowing device, comprising a blowing device body 100, the blowing device body 100 comprising a first blowing part 110 and a second blowing part 120, a plurality of threaded holes 111 are arranged on the first blowing part 110, a through mounting hole 121 is arranged on the end face of the second blowing part 120, and a screw 140 is screwed with the threaded hole 111 after penetrating the mounting hole 121, so as to butt joint and fix the first blowing part 110 and the second blowing part 120.

[0033] The first blowing part 110 and the second blowing part 120 are butt jointed and fixed by the screw 140, so that only the first blowing part 110 needs to be replaced after the front end 102 is damaged, thereby reducing the use cost.

[0034] In the embodiment, the first blowing part 110 is the front end 102 of the blowing device body 100, and the mounting position 103 is located on the second blowing part 120.

[0035] In the embodiment, the first blowing part 110 adopts zirconia castings, the second blowing part 120 adopts high-aluminum brick material, and the screw 140 adopts zirconia screw.

[0036] Further, referring to Figure 6A first heat insulation pad 130 is installed between the first blowing part 110 and the second blowing part 120. The first heat insulation pad 130 plays a role of heat insulation, reducing heat conduction from the first blowing part 110 to the second blowing part 120.

[0037] In the embodiment, the first heat insulation pad 130 is made of fluorine gold mica material. Specifically, the first heat insulation pad 130 is provided with a through hole corresponding to the screw 140.

[0038] Further, in order to accurately butt joint the first blowing part 110 and the second blowing part 120, so as to install the screw 140, a limiting structure is arranged at one end of the butt joint of the first blowing part 110 and the second blowing part 120.

[0039] In the embodiment, referring to Figure 5 , the limiting structure is a limiting column 112 and a limiting hole 122 arranged on the end surface of the first blowing part 110 and the second blowing part 120 respectively.

[0040] Embodiment 2:

[0041] Based on the embodiment 1, referring to Figure 7 , 8 , the second blowing part 120 comprises a mounting ring 150 and an extension ring 160, the mounting hole 121 comprises a through hole 151 on the mounting ring 150 and a counterbore hole 161 on the extension ring 160, and the screw 140 is sequentially inserted into the counterbore hole 161 and the through hole 151 and then screwed and fixed with the threaded hole 111 on the first blowing part 110. The segmented assembly structure facilitates further replacement of damaged parts.

[0042] In the embodiment, the outer circumference of the mounting ring 150 is the mounting position 103 of the blowing device body 100.

[0043] Further, a second heat insulation pad 170 is installed between the mounting ring 150 and the extension ring 160. The second heat insulation pad 170 plays a role of heat insulation, reducing heat conduction from the mounting ring 150 to the extension ring 160.

[0044] In the embodiment, the second heat insulation pad 170 is made of fluorine gold mica material. Specifically, the second heat insulation pad 170 is also provided with a through hole corresponding to the screw 140.

[0045] In order to facilitate the alignment of the through hole 151 and the counterbore hole 161 on the mounting ring 150 and the extension ring 160, a limiting structure is arranged at one end of the butt joint of the mounting ring 150 and the extension ring 160.

[0046] In the embodiment, the limiting structure can be Figure 5 , 6The same limiting structure is shown in the middle, that is, the limiting column 112 and the limiting hole 122 arranged at the end faces of the mounting ring 150 and the extension ring 160, respectively.

[0047] The working steps or principles of the utility model are as follows:

[0048] The utility model divides the blowing device body 100 into first blowing part 110 and second blowing part 120, wherein second blowing part 120 is divided into mounting ring 150 and extension ring 160, and first blowing part 110 and second blowing part 120 are fixed by butt joint through screw 140.

[0049] The blast furnace can be replaced during routine maintenance, for example, after the front end 102 is damaged, only the first blowing part 110 needs to be replaced, thereby reducing the use cost.

Claims

1. A blast furnace blowing device, comprising a blowing device body (100), characterized in that: The blowing device body (100) includes a first blowing part (110) and a second blowing part (120). The first blowing part (110) is provided with a plurality of threaded holes (111). The end surface of the second blowing part (120) is correspondingly provided with a through mounting hole (121). The screw (140) is inserted into the mounting hole (121) and screwed into the threaded hole (111) to connect and fix the first blowing part (110) and the second blowing part (120).

2. A blast furnace injection device according to claim 1, characterized in that: A first thermal insulation pad (130) is installed between the first blowing part (110) and the second blowing part (120).

3. A blast furnace injection device according to claim 1, characterized in that: A limiting structure is provided at one end where the first blowing portion (110) and the second blowing portion (120) are connected.

4. A blast furnace blowing device according to claim 3, characterized in that: The limiting structure comprises a limiting column (112) and a limiting hole (122) respectively arranged on the end surfaces of the first blowing portion (110) and the second blowing portion (120).

5. A blast furnace injection device according to any one of claims 1 to 4, characterized in that: The second blowing portion (120) includes a mounting ring (150) and an extension ring (160), and the mounting hole (121) includes a through hole (151) located on the mounting ring (150) and a countersunk hole (161) located on the extension ring (160). The screw (140) is sequentially inserted into the countersunk hole (161) and the through hole (151) and then screwed and fixed to the threaded hole (111) on the first blowing portion (110).

6. A blast furnace injection device according to claim 5, characterized in that: A second thermal insulation pad (170) is installed between the mounting ring (150) and the extension ring (160).

7. A blast furnace injection device according to claim 5, characterized in that: A limiting structure is provided at one end of the mounting ring (150) that is butted against the extension ring (160).

8. A blast furnace injection device according to claim 7, characterized in that: The limiting structure comprises a limiting column (112) and a limiting hole (122) respectively arranged on the end faces of the mounting ring (150) and the extension ring (160).

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