CN102313448A

CN102313448A - Porous metal beam

Info

Publication number: CN102313448A
Application number: CN201110287913A
Authority: CN
Inventors: 刘洪生; 刘春平; 杨静; 王素茵
Original assignee: Capital Engineering & Research Inc Ltd; Ceri Phoenix Industrial Furnace Co ltd
Current assignee: Capital Engineering & Research Inc Ltd; Ceri Phoenix Industrial Furnace Co ltd
Priority date: 2011-09-26
Filing date: 2011-09-26
Publication date: 2012-01-11
Anticipated expiration: 2031-09-26
Also published as: CN102313448B

Abstract

The invention discloses a porous metal beam which comprises a beam main body, wherein a plurality of inner grooves with arc-shaped cross sections are continuously arranged on the upper surface of the beam main body, and a plurality of through groove inner holes are formed in the inner surface of each inner groove. The inner holes of the grooves are symmetrically distributed along the center line of the cambered surface of the inner groove. According to the invention, the inner grooves for supporting the steel pipes on the upper surface of the metal beam are provided with the plurality of groove inner holes communicated with the interior of the furnace body according to a certain rule, so that the iron oxide scales falling off the inner grooves of the metal beam can fall into the stepping furnace through the groove inner holes, the accumulation of the iron oxide scales on the metal beam is effectively reduced, the rolling of the steel pipes is facilitated, the bending of the steel pipes is reduced, the step pitch of the steel pipes is accurate, the normal discharging can be ensured, the adhesion between the steel pipes and the iron oxide scales is avoided, the surface quality and the yield of the steel pipes are improved, and the steel pipe heating furnace is widely suitable for various steel pipe heat treatment furnaces.

Description

Porous metal beam

Technical Field

The invention relates to a metal beam structure of an industrial furnace, in particular to a porous metal beam in a steel tube stepping furnace in the metallurgical industry.

Background

At present, in a steel tube stepping furnace, a steel tube in the furnace needs to support a blank through a metal fixed beam and a metal movable beam, the movable beam circularly moves once, and the blank advances by one step. The fixed beam and the movable beam are heat-resistant steel metal beam components and are manufactured into different shapes according to different working conditions. Please refer to fig. 1, which is a schematic structural diagram of a metal beam of a conventional industrial furnace. As shown in fig. 1, the existing metal beam for industrial furnaces comprises a beam main body 101, wherein the upper surface of the beam main body 101 is provided with a plurality of continuously arranged concave arc-shaped supporting surfaces 102, and a plurality of steel pipes 103 are respectively arranged on each concave arc-shaped supporting surface 102. Because the step pitch of the steel pipe 103 is different from the tooth pitch between two adjacent concave arc-shaped supporting surfaces 102 on the beam main body 101, the steel pipe 103 can rotate for a certain angle when advancing by one step pitch, and the steel pipe 103 is prevented from being bent in a high-temperature state.

As is known to all, iron scales are inevitably generated in the heating process of the steel pipe 103, fall off on the concave arc-shaped supporting surface 102, and the higher the falling iron scales are, the more the steel pipe is prevented from rolling normally, so that the steel pipe is bent, and the hidden trouble that the steel pipe cannot be discharged normally exists. In addition, the iron scale may adhere to the steel pipe to deteriorate the surface quality of the steel pipe. If manual operation is adopted to remove the fallen iron oxide scales, time and labor are wasted, and normal production is influenced. Therefore, how to remove the scale in time and ensure normal production not to be affected has become an urgent need for improvement in the industry.

In view of the problem of iron scale accumulation on the surface of the metal beam, the designer combines the practical application of the metal beam based on the abundant experience and the over-strong professional knowledge in mechanical design and manufacture for many years, and actively makes research and innovation to overcome the defects of the existing metal beam in the aspect of structure.

Disclosure of Invention

The invention aims to provide the porous metal beam which is simple in structure and convenient to process, can remove iron scales in time, ensures that a steel pipe normally rolls, and avoids the adhesion of the iron scales and the steel pipe.

In order to achieve the purpose, the invention provides a porous metal beam which comprises a beam main body, wherein a plurality of inner grooves with arc-shaped cross sections are continuously arranged on the upper surface of the beam main body, and a plurality of through groove inner holes are formed in the inner surface of each inner groove.

The porous metal beam as described above, wherein the plurality of inner holes of the groove are symmetrically distributed along the center line of the arc surface of the inner groove.

The porous metal beam is characterized in that at least two rows of groove inner hole groups are arranged on the same side of the cambered surface center line of the inner groove along the length direction of the beam main body, and each row of the groove inner hole groups is provided with at least two groove inner holes arranged at equal intervals.

The porous metal beam as described above, wherein the distance between the hole groups in two adjacent rows of the grooves along the center line in the length direction of the beam body is 50mm to 120 mm.

The expanded metal beam as described above, wherein the distance between the centers of the inner holes of two adjacent grooves of the groove inner hole group is 60mm to 120 mm.

The porous metal beam as described above, wherein the diameter of the inner hole of the groove is 20mm to 80 mm.

The porous metal beam is characterized in that the four inner grooves are arranged on the same side of the center line of the cambered surface of the inner groove, and the four inner grooves are distributed in a rectangular shape.

The porous metal beam is characterized in that the inner groove is provided with four inner grooves, and the four inner grooves are distributed in a trapezoidal shape.

Compared with the prior art, the invention has the following characteristics and advantages:

according to the invention, the inner grooves for supporting the steel pipes on the upper surface of the metal beam are provided with the plurality of groove inner holes communicated with the interior of the furnace body according to a certain rule, so that the iron oxide scales falling off the inner grooves of the metal beam can fall into the stepping furnace through the groove inner holes, the accumulation of the iron oxide scales on the metal beam is effectively reduced, the rolling of the steel pipes is facilitated, the bending of the steel pipes is reduced, the step pitch of the steel pipes is accurate, the normal discharging can be ensured, the adhesion between the steel pipes and the iron oxide scales is avoided, the surface quality and the yield of the steel pipes are improved, and the steel pipe heating furnace is widely suitable for various steel pipe heat treatment furnaces.

Drawings

The drawings are only for purposes of illustrating and explaining the present invention and are not to be construed as limiting the scope of the present invention. Wherein,

FIG. 1 is a schematic structural view of a metal beam of a conventional industrial furnace;

FIG. 2 is a schematic structural view of a porous metal beam according to the present invention;

FIG. 3 is a schematic top view of the expanded metal beam of the present invention;

FIG. 4 is a schematic structural view showing the trapezoidal distribution of the inner holes of the grooves according to the present invention.

Description of reference numerals:

the prior art is as follows:

101-a beam body; 102-concave arc support surface; 103-steel pipe.

The invention comprises the following steps:

1-a beam body; 2-a steel pipe; 3-inner grooves; 4-inner hole of the groove.

Detailed Description

In order to more clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will now be described with reference to the accompanying drawings.

Fig. 2 is a schematic structural diagram of a porous metal beam according to the present invention. As shown in the figure, the porous metal beam provided by the invention can be used in a steel pipe stepping furnace in the metallurgical industry, and comprises a beam main body 1, wherein a plurality of inner grooves 3 with arc-shaped cross sections are continuously arranged on the upper surface of the beam main body 1 and used for supporting steel pipes 2, and a plurality of through groove inner holes 4 are formed in the inner surface of each inner groove 3. Like this for the iron scale that drops on the inner groovy 3 of metal roof beam can drop to the step-by-step furnace in through each recess hole 4, has effectively reduced the iron scale and has piled up on the metal roof beam, is favorable to the roll of steel pipe, reduces the crooked of steel pipe, makes the steel pipe step accurate, can guarantee normal ejection of compact, and has avoided the adhesion of steel pipe with the iron scale, improves the surface quality of steel pipe.

Please refer to fig. 3, which is a schematic top view of the porous metal beam according to the present invention. As shown in the figure, the plurality of groove inner holes 4 are symmetrically distributed along the cambered surface center line L of the inner groove 3, so that when the steel pipe 2 shakes in the inner groove 3, as many iron scales as possible timely fall into the furnace through the groove inner holes 4, and the quality of the steel pipe is guaranteed.

Further, as shown in fig. 3, two rows of groove inner hole groups are arranged on the same side of the arc surface center line L of the inner groove 3 along the length direction of the beam main body, and each row of groove inner hole groups is provided with two groove inner holes 4 arranged at equal intervals. In this embodiment, four groove inner holes 4 are disposed on the same side of the arc center line L of the inner groove 3, and the four groove inner holes 4 are distributed in a rectangular shape. Therefore, the strength of the metal beam can be ensured, the iron scale can timely fall into the furnace, and the accumulation of the iron scale on the metal beam is greatly reduced. According to the difference of actual working conditions and the size of the metal beam, three, four or more rows of groove inner hole groups can be arranged on the same side of the cambered surface central line L of the inner groove 3 along the length direction of the beam main body, and each row of groove inner hole group can be provided with three, four or more groove inner holes 4 which are arranged at equal intervals.

Further, as shown in fig. 3, in order to make the distribution of the groove inner holes 4 more reasonable and effective, the distance a between two adjacent rows of the groove inner hole groups along the center line of the beam main body 1 in the length direction is 50mm to 120 mm. The distance b between the centers of two adjacent groove inner holes 4 of the groove inner hole group is 60 mm-120 mm. The diameter of the inner hole 4 of the groove is 20-80 mm, and the strength of the metal beam is ensured by controlling the diameter of the hole.

As an alternative embodiment of the present invention, as shown in fig. 4, the plurality of concave inner holes 4 on the same side of the center line of the arc surface of the inner groove 3 may also be distributed in a trapezoidal or other polygonal shape. The invention does not limit the distribution shape of the inner hole 4 of the groove on the inner groove 3, as long as the iron scale can fall into the furnace in time.

In conclusion, the inner grooves for supporting the steel pipes on the upper surface of the metal beam are provided with the plurality of groove inner holes communicated with the interior of the furnace body according to a certain rule, so that the iron oxide scales falling off the inner grooves of the metal beam can fall into the stepping furnace through the groove inner holes, the accumulation of the iron oxide scales on the metal beam is effectively reduced, the rolling of the steel pipes is facilitated, the bending of the steel pipes is reduced, the steel pipes are accurate in step distance, the normal discharging can be ensured, the adhesion between the steel pipes and the iron oxide scales is avoided, the surface quality and the yield of the steel pipes are improved, and the steel pipe heating furnace is widely suitable for various steel pipe heat treatment furnaces, steel pipe heating furnaces and.

The above description is only an exemplary embodiment of the present invention, and is not intended to limit the scope of the present invention. Any equivalent changes and modifications that can be made by one skilled in the art without departing from the spirit and principles of the invention should fall within the protection scope of the invention.

Claims

1. The porous metal beam comprises a beam main body, wherein a plurality of inner grooves with arc-shaped cross sections are continuously arranged on the upper surface of the beam main body, and the porous metal beam is characterized in that a plurality of through groove inner holes are formed in the inner surface of each inner groove.

2. The expanded metal beam of claim 1, wherein said plurality of pocket bores are symmetrically distributed along a centerline of said inner pocket arcuate surface.

3. The expanded metal beam of claim 2, wherein at least two rows of the pocket sets are provided along the length of said beam body on the same side of the centerline of the arc of said inner pocket, each row of said pocket sets having at least two of said pocket bores equally spaced.

4. The expanded metal beam of claim 3, wherein the spacing between adjacent rows of said groove inner hole sets along the longitudinal centerline of said beam body is in the range of 50mm to 120 mm.

5. The expanded metal beam defined in claim 3, wherein the spacing between the centers of two adjacent inner holes of said group of inner holes of said groove is in the range of 60mm to 120 mm.

6. The expanded metal beam defined in claim 3, wherein the diameter of the bore of said groove is in the range of 20mm to 80 mm.

7. The expanded metal beam of claim 2, wherein four of said pocket bores are disposed on the same side of the centerline of the inner pocket arcuate surface and are rectangularly disposed.

8. The expanded metal beam of claim 2, wherein four of said pocket bores are disposed on the same side of the centerline of the inner pocket arcuate surface, and wherein said four pocket bores are trapezoidal in shape.