Reinforcing device for deformation of blast furnace body

Abstract

The utility model provides a reinforcing device for deformation of a blast furnace body, which comprises a blast furnace base and a blast furnace body arranged at the top of the blast furnace base, a furnace bottom sealing plate is arranged at the bottom of the blast furnace body, a plurality of upper stiffening plates distributed circumferentially are welded on the outer circumferential side wall of the blast furnace body, and a plurality of lower stiffening plates distributed circumferentially are welded on the outer circumferential side wall of the blast furnace body. An annular anchor plate is fixedly connected to the side wall of the outer circumference of the blast furnace base, lower annular plates are fixedly welded to the side, away from the blast furnace base, of the anchor plate, upper annular plates are welded to the side wall of the outer circumference of the blast furnace body, and the lower annular plates are tensioned through fasteners. According to the utility model, the purpose of tensioning the upper ring plate and the lower ring plate is achieved by adopting the bolts and the nuts, the scheme is simple in construction process and high in operability, the deformation of the furnace body can be monitored at any time, adjustment can be made at any time according to the deformation condition, and the furnace body can be reinforced under the condition of not stopping production, so that the economic loss caused by stopping production is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of blast furnace smelting, in particular to a reinforcement device for blast furnace body deformation. Background Art

[0002] As we all know, the blast furnace is a key equipment in the iron-making process. It is a complex and special structure with coupled movement of solid-liquid-gas three-phase materials inside and subjected to high temperature, high pressure and other effects.

[0003] The internal forces of the blast furnace structure design are complex, and there will be defects during the construction process. The blast furnace bottom cover plate will also warp up during later use. The warping of the blast furnace bottom cover plate will cause the overall deformation of the furnace body. If the bottom cover plate warps up unevenly, it will cause the entire furnace body to tilt. If it is not handled, it may cause a safety accident.

[0004] At present, there is no effective reinforcement device for the deformation of the blast furnace body. Usually, replacement is adopted, which will cause great economic costs. In addition, the replacement is difficult to operate due to its large size. Utility Model Content

[0005] The utility model aims to provide a reinforcement device for blast furnace body deformation, so as to solve the technical problems existing in the prior art.

[0006] In order to solve the above technical problems, the utility model provides a reinforcement device for blast furnace body deformation, comprising a blast furnace base and a blast furnace body arranged on the top of the blast furnace base, the bottom of the blast furnace body is a furnace bottom sealing plate, the outer circumferential side wall of the blast furnace body is welded with a plurality of circumferentially distributed upper stiffening plates, the outer circumferential side wall of the blast furnace base is fixedly connected with an annular anchor plate, the side of the anchor plate away from the blast furnace base is fixedly welded with a lower ring plate, the outer circumferential side wall of the blast furnace body is welded with an upper ring plate, and the lower ring plate is tightened by fasteners.

[0007] Preferably, the fastener includes a bolt and a nut, the bolt movably penetrates the upper ring plate and the lower ring plate, and the nut is threadedly sleeved on the bolt.

[0008] Preferably, an upper stiffening plate is fixedly connected between the upper ring plate and the blast furnace body.

[0009] Preferably, a lower stiffening plate is fixedly connected between the lower ring plate and the blast furnace base.

[0010] Preferably, a plurality of anchor bars are fixedly connected to one side of the anchor plate close to the blast furnace base, and the other ends of the anchor bars are fixedly inserted into the blast furnace base.

[0011] Preferably, phase laser rangefinders are fixedly mounted on the surfaces of the upper ring plate and the lower ring plate to monitor the distance between the upper ring plate and the lower ring plate in real time.

[0012] Preferably, the blast furnace base as a whole is composed of two cylinders, and a bottom stiffening plate is fixedly connected to the intersection of the two cylinders of the blast furnace base.

[0013] Preferably, through holes are provided on the surfaces of the upper ring plate and the lower ring plate to allow bolts to pass through.

[0014] Preferably, the upper stiffening plates are symmetrically distributed on the upper and lower sides of the upper ring plate.

[0015] Preferably, the lower stiffening plates are symmetrically distributed on the upper and lower sides of the lower ring plate.

[0016] By adopting the above technical solution, the utility model has the following beneficial effects:

[0017] 1. In the utility model, bolts and nuts are used to achieve the purpose of tightening the upper ring plate and the lower ring plate. The scheme construction process is simple and easy to operate. The furnace body deformation can be monitored at all times and adjustments can be made at any time according to the deformation situation. Moreover, the furnace body can be reinforced without stopping production to avoid economic losses caused by stopping production.

[0018] 2. In the utility model, phase laser rangefinders are installed on the upper and lower ring plates to monitor the deformation of the furnace body; according to the monitoring data, the deformation of the blast furnace body is further controlled by adjusting the bolts and nuts. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] 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 in the following description 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 creative work.

[0020] Figure 1 A top view of a reinforcement device for blast furnace body deformation provided by an embodiment of the utility model;

[0021] Figure 2 An AA cross-sectional structural diagram for blast furnace body deformation provided by an embodiment of the utility model;

[0022] Figure 3 A BB cross-sectional structural diagram for blast furnace body deformation provided in an embodiment of the utility model.

[0023] Figure numerals: 1. upper ring plate; 2. bolt; 3. nut; 4. lower ring plate; 5. upper stiffening plate; 6. anchor plate; 7. anchor bar; 8. bottom stiffening plate; 9. phase laser rangefinder; 10. lower stiffening plate; 11. blast furnace body; 111. furnace bottom sealing plate; 12. blast furnace base. DETAILED DESCRIPTION

[0024] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are 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.

[0025] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention 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 therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] The present invention will be further explained below in conjunction with specific implementation methods.

[0028] like Figure 1-3 As shown, the present embodiment provides a reinforcement device for blast furnace body deformation, comprising a blast furnace base 12 and a blast furnace body 11 arranged on the top of the blast furnace base 12, the bottom of the blast furnace body 11 is a furnace bottom sealing plate 111, and the outer circumferential side wall of the blast furnace body 11 is welded with a plurality of circumferentially distributed upper stiffening plates 5, and the outer circumferential side wall of the blast furnace base 12 is fixedly connected with an annular anchor plate 6, and the side of the anchor plate 6 away from the blast furnace base 12 is fixedly welded with a lower ring plate 4, and the outer circumferential side wall of the blast furnace body 11 is welded with an upper ring plate 1, and the lower ring plates 4 are tightened by fasteners, and the deformation of the blast furnace body 11 is controlled by the fasteners.

[0029] The fasteners include bolts 2 and nuts 3. Through holes are provided on the surfaces of the upper ring plate 1 and the lower ring plate 4 to allow the bolts 2 to pass through. The bolts 2 are movable through the upper ring plate 1 and the lower ring plate 4, that is, through the through holes, and the nuts 3 are threadedly sleeved on the bolts 2 to achieve tightening.

[0030] First, measure the deformation (upward) height or tilt angle of the furnace body, determine the length of bolt 2 and the size of nut 3 according to the deformation, and use bolt 2 and nut 3 to achieve the purpose of tightening the upper ring plate 1 and the lower ring plate 4. The construction process of the scheme is simple and easy to operate. It can monitor the deformation of the furnace body at all times, make adjustments at any time according to the deformation situation, and can be reinforced without stopping production to avoid economic losses caused by production stoppage.

[0031] An upper stiffening plate 5 is fixedly connected between the upper ring plate 1 and the blast furnace body 11. There are two upper stiffening plates 5 on each upper ring plate 1. The upper stiffening plates 5 are symmetrically distributed on the upper and lower sides of the upper ring plate 1 to achieve the purpose of reinforcement between the upper ring plate 1 and the blast furnace body 11.

[0032] A lower stiffening plate 10 is fixedly connected between the lower ring plate 4 and the blast furnace base 12. There are two lower stiffening plates 10 on each lower ring plate 4. The lower stiffening plates 10 are symmetrically distributed on the upper and lower sides of the lower ring plate 4 to achieve the purpose of reinforcement between the upper ring plate 1 and the blast furnace base 12.

[0033] A plurality of anchor bars 7 are fixedly connected to one side of the anchor plate 6 close to the blast furnace base 12, and the other end of the anchor bars 7 is fixedly inserted into the blast furnace base 12. The blast furnace base 12 is an important component for supporting the weight of the blast furnace body 11. By inserting the anchor bars 7 into the blast furnace base 12, the structural stability of the blast furnace base 12 can be enhanced, and the bearing capacity and durability of the blast furnace base 12 are improved.

[0034] Phase laser rangefinders 9 are fixedly installed on the surfaces of the upper ring plate 1 and the lower ring plate 4 to monitor the distance between the upper ring plate 1 and the lower ring plate 4 in real time; based on the monitoring data, the position of the nut 3 on the bolt 2 is adjusted to pull the upper ring plate 1 and the lower ring plate 4 to further control the deformation of the blast furnace body 11.

[0035] The blast furnace base 12 as a whole is composed of two cylinders. A bottom stiffening plate 8 is fixedly connected to the intersection of the two cylinders of the blast furnace base 12 to enhance the structural stability of the blast furnace base 12 .

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A reinforcement device for blast furnace body deformation, characterized in that: The invention comprises a blast furnace base (12) and a blast furnace body (11) arranged on the top of the blast furnace base (12); the bottom of the blast furnace body (11) is a furnace bottom sealing plate (111); the outer circumferential side wall of the blast furnace body (11) is welded with a plurality of circumferentially distributed upper stiffening plates (5); the outer circumferential side wall of the blast furnace base (12) is fixedly connected with an annular anchor plate (6); a lower ring plate (4) is fixedly welded on the side of the anchor plate (6) away from the blast furnace base (12); an upper ring plate (1) is welded to the outer circumferential side wall of the blast furnace body (11); and the lower ring plate (4) is tightened by fasteners.

2. A reinforcement device for blast furnace body deformation according to claim 1, characterized in that: The fastener comprises a bolt (2) and a nut (3); the bolt (2) is movably arranged to penetrate the upper ring plate (1) and the lower ring plate (4); and the nut (3) is threadedly sleeved on the bolt (2).

3. A reinforcement device for blast furnace body deformation according to claim 1, characterized in that: An upper stiffening plate (5) is fixedly connected between the upper ring plate (1) and the blast furnace body (11).

4. A reinforcement device for blast furnace body deformation according to claim 1, characterized in that: A lower stiffening plate (10) is fixedly connected between the lower ring plate (4) and the blast furnace base (12).

5. A reinforcement device for blast furnace body deformation according to claim 1, characterized in that: A plurality of anchor bars (7) are fixedly connected to one side of the anchor plate (6) close to the blast furnace base (12), and the other ends of the anchor bars (7) are fixedly inserted into the blast furnace base (12).

6. A reinforcement device for blast furnace body deformation according to claim 1, characterized in that: Phase laser rangefinders (9) are fixedly mounted on the surfaces of the upper ring plate (1) and the lower ring plate (4) to monitor the distance between the upper ring plate (1) and the lower ring plate (4) in real time.

7. A reinforcement device for blast furnace body deformation according to claim 1, characterized in that: The blast furnace base (12) as a whole is composed of two cylinders, and a bottom stiffening plate (8) is fixedly connected to the intersection of the two cylinders of the blast furnace base (12).

8. A reinforcement device for blast furnace body deformation according to claim 1, characterized in that: Through holes are provided on the surfaces of the upper ring plate (1) and the lower ring plate (4) to allow the bolts (2) to pass through.

9. A reinforcement device for blast furnace body deformation according to claim 3, characterized in that: The upper stiffening plates (5) are symmetrically distributed on the upper and lower sides of the upper ring plate (1).

10. A reinforcement device for blast furnace body deformation according to claim 4, characterized in that: The lower stiffening plates (10) are symmetrically distributed on the upper and lower sides of the lower ring plate (4).

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