CN215328296U

CN215328296U - Device is inlayed to marching type heating furnace slider

Info

Publication number: CN215328296U
Application number: CN202120735823.4U
Authority: CN
Inventors: 赵镇江; 崔晨
Original assignee: Tangshan City Delong Iron and Steel Co Ltd
Current assignee: Tangshan City Delong Iron and Steel Co Ltd
Priority date: 2021-04-12
Filing date: 2021-04-12
Publication date: 2021-12-28
Anticipated expiration: 2031-04-12

Abstract

A sliding block mosaic structure of a stepping heating furnace comprises a rear vertical plate, a side vertical plate and a front vertical plate; the rear vertical plate and the front vertical plate are arranged in parallel, a group of side vertical plates are arranged between the rear vertical plate and the front vertical plate, and a frame structure with a sliding block embedding cavity and a falling sliding block replacing cavity is formed by the rear vertical plate, the side vertical plates and the front vertical plate; the inner wall size of the sliding block embedding cavity and the falling sliding block replacing cavity is matched with the outer surface size of a sliding block of the heating furnace, the sliding block can be sleeved in the sliding block embedding cavity, and the distance between the sliding block embedding cavity and the falling sliding block replacing cavity is matched with the distance between two groups of sliding blocks on a movable beam or a fixed beam of the walking-type heating furnace. The utility model can fill and replace the falling slide block by sleeving the frame on the other adjacent slide block when the individual slide block falls off in the walking beam furnace, thereby achieving the purposes of avoiding furnace shutdown operation, ensuring normal production rhythm and stabilizing the quality of rolled materials.

Description

Device is inlayed to marching type heating furnace slider

Technical Field

The utility model relates to a stepping heating furnace, in particular to a method for filling a substituted slide block mosaic structure by sleeving a frame on another adjacent slide block after an individual slide block of the stepping heating furnace falls off.

Background

In the production process of steel rolling, billet heating is one of important processes, and the billet is heated by a heating furnace, so that the plasticity of steel can be improved, the deformation resistance is reduced, the rolling is facilitated, the internal structure defect can be eliminated or improved, and the product quality is improved.

The walking beam type heating furnace is a continuous heating furnace in which a slab is moved forward one by the ascending, advancing, descending and retreating actions of a furnace bottom or a walking beam (the walking beam is generally called a water beam because it is composed of water-cooled tubes). For example, a walking beam furnace for heating steel billets is provided with a plurality of sliding blocks on a movable beam and a fixed beam, the assembly relationship of the movable beam 2 and the sliding blocks 1 of the walking beam furnace is shown in the attached figure 1 of the specification, in the production process, because the sliding blocks 1 on the movable beam 2 and the fixed beam are influenced by factors such as welding strength, fatigue resistance, high temperature in the heating furnace and the like, the sliding blocks are easy to fall off, shift and damage, especially, a heated rectangular steel billet cannot be stably supported after the sliding blocks 1 fall off, accidents that the steel billet falls into the heating furnace are easily caused, in this situation, the furnace can only be stopped, the steel billet is re-welded after the furnace is physically cooled (generally, the temperature in the furnace is reduced to about 200 ℃) and the temperature is re-ignited and raised (generally, 72 hours is needed) after the welding is finished, the normal production can be recovered, and therefore, the normal production rhythm is damaged, but also the stability of the quality of the rolled stock.

SUMMERY OF THE UTILITY MODEL

The utility model provides a slide block mosaic structure of a walking beam furnace, which is used for filling and replacing a falling slide block by sleeving a frame on another adjacent slide block through the slide block mosaic structure when the individual slide block falls off in the walking beam furnace, so as to achieve the purposes of avoiding furnace shutdown operation, ensuring normal production rhythm and stabilizing rolling quality.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a sliding block mosaic structure of a stepping heating furnace comprises a rear vertical plate, a side vertical plate and a front vertical plate; the rear vertical plate and the front vertical plate are arranged in parallel, a group of side vertical plates are arranged between the rear vertical plate and the front vertical plate, and a frame structure with a sliding block embedding cavity and a falling sliding block replacing cavity is formed by the rear vertical plate, the side vertical plates and the front vertical plate; the inner wall size of the sliding block embedding cavity and the falling sliding block replacing cavity is matched with the outer surface size of a sliding block of the heating furnace, the sliding block can be sleeved in the sliding block embedding cavity, and the distance between the sliding block embedding cavity and the falling sliding block replacing cavity is matched with the distance between two groups of sliding blocks on a movable beam or a fixed beam of the walking-type heating furnace.

According to the sliding block mosaic structure of the stepping heating furnace, the sliding block which falls off is arranged at the top of the replacing cavity, and the size of the sliding block is matched with that of the upper end face of the sliding block.

According to the stepping heating furnace sliding block mosaic structure, the falling sliding block replaces a sliding plate at the top of the cavity to be assembled through a welding process.

According to the stepping heating furnace sliding block mosaic structure, the frame consisting of the rear vertical plate, the side vertical plate and the front vertical plate is integrally formed through a casting process, and the connecting part of the rear vertical plate, the side vertical plate and the front vertical plate is cast with a round corner R =5 mm.

The utility model relates to a slide block mosaic structure of a walking beam furnace, which can be sleeved on another group of slide blocks adjacent to a falling slide block through a slide block mosaic cavity after individual slide blocks of the walking beam furnace fall off, and the falling slide block replaces a slide plate on the side wall or the top of the cavity to replace the falling slide block. The sliding block embedding structure of the walking beam type heating furnace can be prefabricated outside the furnace, and then the sliding block embedding cavity is embedded on another group of sliding blocks adjacent to the falling sliding block on the walking beam or the fixed beam in the furnace at the position of the cantilever roller outside the furnace.

Drawings

FIG. 1 is a schematic view of the assembly relationship between a slide block and a movable beam (or a fixed beam) of a walking beam furnace;

FIG. 2 is a schematic structural view of the present invention;

FIG. 3 is a top view of FIG. 2;

FIG. 4 is a schematic structural diagram of the first embodiment taken at section A-A in FIG. 3;

FIG. 5 is a schematic structural view of a second embodiment taken along the line A-A in FIG. 3;

FIG. 6 is a schematic view of the assembly of the present invention with a walking beam (or fixed beam) of a walking beam furnace;

fig. 7 is a top view of fig. 6 (first embodiment);

fig. 8 is a plan view of fig. 6 (second embodiment).

The list of labels in the figure is:

1. a slider; 2. A movable beam; 3. 3-1 of a sliding block embedding structure, 3-2 of a rear vertical plate, 3-2 of a side vertical plate, 3-3 of a front vertical plate, 3-4 of a sliding plate;

i, a sliding block embedding cavity and II, a falling sliding block replacing cavity.

Detailed Description

The utility model is further described with reference to the following figures and specific embodiments.

Referring to fig. 1, a walking beam furnace for heating steel billets is provided with a plurality of sliding blocks on a movable beam and a fixed beam, and in the production process of the walking beam furnace, because the sliding blocks 1 on the movable beam 2 and the fixed beam are influenced by factors such as welding strength, fatigue resistance, high temperature in the heating furnace and the like, the sliding blocks are easy to fall off, shift and damage, especially, after the sliding blocks 1 fall off, the heated rectangular steel billets cannot be stably supported, the accident that the steel billets fall into the heating furnace is easy to cause, in this case, the furnace can only be stopped for re-welding the sliding blocks, so that not only the normal production rhythm is destroyed, but also the temperature in the furnace is high when the sliding blocks are welded, and the operation difficulty is increased.

Referring to fig. 2, 3 and 4, in order to solve the problem of stopping the furnace for repairing after the sliding block 1 on the movable beam or the fixed beam in the walking beam furnace falls off, the utility model provides a sliding block mosaic structure of a walking beam type heating furnace, wherein the sliding block mosaic structure 3 comprises a rear vertical plate 3-1, a side vertical plate 3-2 and a front vertical plate 3-3; the rear vertical plate 3-1 and the front vertical plate 3-3 are arranged in parallel, a group of side vertical plates 3-2 are arranged between the rear vertical plate 3-1 and the front vertical plate 3-3, a frame structure with a slider embedding cavity I and a falling slider replacing cavity II is formed by the rear vertical plate 3-1, the side vertical plates 3-2 and the front vertical plate 3-3, the frame structure is integrally formed through a casting process, and a casting fillet R =5mm is cast at the joint of the rear vertical plate 3-1, the side vertical plates 3-2 and the front vertical plate 3-3; the inner wall size that chamber I was inlayed to the slider and the slider that drops replaces chamber II matches with 1 surface size of slider of heating furnace, and slider 1 can be the suit in the inside that chamber I was inlayed to the slider, and the slider is inlayed chamber I and the slider that drops and is replaced the distance between the chamber II and the walking beam of walking-beam heating furnace or fixed beam between two sets of sliders 1 distance phase-match.

Referring to fig. 2, 3 and 5, as another embodiment of the utility model, a sliding plate 3-4 is welded on the top of the falling sliding block replacing cavity II, and the size of the sliding plate 3-4 is matched with that of the upper end face of the sliding block 1.

Referring to fig. 6, 7 and 8, after the individual sliding blocks of the movable beam or the fixed beam of the walking beam furnace are detached, the sliding block embedding structure of the walking beam furnace can be sleeved on another group of sliding blocks adjacent to the detached sliding block through the sliding block embedding cavity I, and the detached sliding block is replaced by the detached sliding block to replace the side wall (shown in fig. 7) of the cavity II or the sliding plate 3-4 (shown in fig. 8) at the top. The slide block mosaic structure 3 of the walking beam type heating furnace can be prefabricated outside the furnace, and then a slide block mosaic cavity I of the walking beam mosaic structure is inlaid on another group of slide blocks adjacent to a falling slide block on a walking beam or a fixed beam in the furnace at a cantilever roller outside the furnace.

Claims

1. A sliding block mosaic structure of a stepping heating furnace is characterized in that the sliding block mosaic structure (3) comprises a rear vertical plate (3-1), a side vertical plate (3-2) and a front vertical plate (3-3); the rear vertical plate (3-1) and the front vertical plate (3-3) are arranged in parallel, a group of side vertical plates (3-2) are arranged between the rear vertical plate (3-1) and the front vertical plate (3-3), and the rear vertical plate (3-1), the side vertical plates (3-2) and the front vertical plate (3-3) form a frame structure with a sliding block embedding cavity (I) and a falling sliding block replacing cavity (II); the inner wall size that chamber (I) and the slider that drops replaced chamber (II) are inlayed to the slider and the slider (1) surface size of heating furnace matches, and slider (1) can the suit in the inside that chamber (I) was inlayed to the slider, and the slider is inlayed between chamber (I) and the slider that drops and is replaced between chamber (II) apart from and the walking beam of marching type heating furnace or distance phase-match between two sets of sliders (1) on the fixed beam.

2. The slider mosaic structure of the walking beam furnace as claimed in claim 1, wherein a slide plate (3-4) is arranged on the top of said drop slider replacement cavity (II), and the size of said slide plate (3-4) is matched with the size of the upper end surface of the slider (1).

3. A stepping heater slider mosaic structure according to claim 2, wherein said falling slider replaces the slide plate (3-4) at the top of the cavity (ii) to be assembled by welding process.

4. The stepping heating furnace slide block mosaic structure according to claim 1, 2 or 3, wherein a frame consisting of a rear vertical plate (3-1), a side vertical plate (3-2) and a front vertical plate (3-3) is integrally formed by casting, and the joint of the rear vertical plate (3-1), the side vertical plate (3-2) and the front vertical plate (3-3) is cast with a round angle R =5 mm.