CN218873660U

CN218873660U - Heat preservation pit for continuous casting billet

Info

Publication number: CN218873660U
Application number: CN202222757979.XU
Authority: CN
Inventors: 孙国栋
Original assignee: Xinyu Huafeng Special Steel Co ltd
Current assignee: Xinyu Huafeng Special Steel Co ltd
Priority date: 2022-10-19
Filing date: 2022-10-19
Publication date: 2023-04-18
Anticipated expiration: 2032-10-19

Abstract

The utility model discloses a heat preservation pit for continuous casting billets, which relates to the technical field of special steel processing, and comprises a square pit body and a pit cover which is positioned above the pit body and is used for sealing the pit body, wherein the pit cover comprises a left pit cover and a right pit cover which are horizontally arranged, and the side surfaces of the left pit cover and the right pit cover which are close to each other are clamped through a clamping mechanism; the left pit cover and the right pit cover are lifted in the vertical direction through a lifting mechanism; the left pit cover and the right pit cover can move in the horizontal direction through the horizontal moving mechanism. The utility model discloses a elevating system and horizontal migration mechanism drive detached left side pot cover and right pot cover move in horizontal direction and vertical direction to thereby make left side pot cover and right pot cover both carry out the joint and form holistic pot cover and seal the hole body in order to realize placing the continuous casting billet at the internal back accessible pot cover of hole, with the heat preservation of the hole body of realizing placing the continuous casting billet, avoid the continuous casting billet at the quick cooling in the heat preservation hole.

Description

A heat preservation hole for continuous casting billet

Technical Field

The utility model relates to a special steel processing technology field, concretely relates to heat preservation hole for continuous casting billet.

Background

At present, hot rolling heat preservation pits are widely used in the hot rolling process. In the prior art, steel billets are generally placed in a heat preservation pit for slow cooling treatment. The existing heat preservation pits are generally uncovered, steel billets can be rapidly cooled after being placed in the uncovered heat preservation pits, and the heat dissipation of the steel billets can cause unstable heat load of the steel billets and unstable internal stress release rate of the steel billets, so that the steel billets are cracked and/or burst, and the production quality of the steel billets is influenced.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems in the prior art, the utility model provides a heat preservation pit for a continuous casting blank, which comprises a square pit body and a pit cover which is positioned above the pit body and is used for sealing the pit body;

the pit cover comprises a left pit cover and a right pit cover which are horizontally arranged, and the side surfaces, close to each other, of the left pit cover and the right pit cover are clamped through a clamping mechanism;

the left pit cover and the right pit cover are lifted in the vertical direction through a lifting mechanism;

and the left pit cover and the right pit cover move in the horizontal direction through the horizontal moving mechanism.

The clamping mechanism comprises a convex block and a clamping groove, the convex block is fixedly arranged on one side face of the left pit cover, the clamping groove is formed in the side face, close to the left pit cover, of the right pit cover, and the convex block and the clamping groove form the clamping mechanism.

The horizontal moving mechanism comprises a slide rail, a slide block connected to the slide rail in a sliding manner and a first electric push rod horizontally arranged, and power pits positioned below the ground are respectively arranged on the ground at the two sides of the pit body; the two slide rails are respectively detachably and fixedly arranged at the bottoms of the two power pits;

the movable end of the first electric push rod is fixedly connected with one side face of the sliding block;

and the left pit cover and the right pit cover are both fixedly arranged above the sliding block.

The further scheme is that a supporting plate is fixedly arranged at the top of the sliding block, the lifting mechanism comprises a second electric push rod which is vertically arranged, and the movable ends of the two second electric push rods are fixedly connected with the bottoms of the left pit cover and the right pit cover respectively.

The further proposal is that the surface of the inner side wall of the inner pit body is bonded with a heat-insulating layer.

The pit body comprises an outer pit body and an inner pit body, an interlayer is arranged between the outer pit body and the inner pit body, and a heating component is detachably and fixedly arranged in the interlayer.

The utility model has the advantages that:

the utility model discloses a elevating system and horizontal migration mechanism drive detached left side hole lid and right side hole lid move in horizontal direction and vertical direction to thereby make left side hole lid and right side hole lid both carry out the joint and form holistic hole lid and seal the hole body in order to realize placing the continuous casting billet at the internal back accessible hole lid of hole, with the heat preservation of the hole body of realization placing the continuous casting billet, avoid the relatively fast cooling of continuous casting billet in the hole that keeps warm.

The utility model discloses a make the heat preservation hole divide into the outer pot body and the interior pot body and make and form heating space between the outer pot body and the interior pot body, can preheat the heat preservation hole through the heating element among the heating space to make the inside temperature in heat preservation hole rise, thereby reduce the temperature difference between continuous casting billet and the heat preservation hole, further avoid the continuous casting billet to be in the heat preservation hole faster cooling.

Drawings

Fig. 1 is a schematic structural diagram of a pit cover closing of a heat preservation pit for a continuous casting billet according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of the opening of a pit cover of a heat preservation pit for a continuous casting billet according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a heat preservation pit for a continuous casting slab according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a left pit cover and a right pit cover according to an embodiment of the present invention;

the attached drawings are marked as follows: 1-pit body; 10-outer pot body; 11-inner pit body; 12-a barrier layer; 2-pit cover; 20-left pit cover; 21-right pit cover; 30-a bump; 31-a card slot; 40-a slide rail; 41-a slide block; 42-a first electric push rod; 5-a support plate; 6-a second electric push rod; 7-insulating layer; 8-a heating assembly; 9-power pit.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

As shown in fig. 1 to 4, an embodiment of the present invention discloses a heat preservation pit for continuous casting slab, comprising a square pit body 1 and a pit cover 2 located above the pit body 1 and used for sealing the pit body 1;

the pit cover 2 comprises a left pit cover 20 and a right pit cover 21 which are horizontally arranged, and the left pit cover 20 and the right pit cover 21 are lifted in the vertical direction through a lifting mechanism; both the left pit cover 20 and the right pit cover 21 are moved in the horizontal direction by a horizontal movement mechanism.

The horizontal moving mechanism comprises a slide rail 40, a slide block 41 connected to the slide rail 40 in a sliding manner and a first electric push rod 42 arranged horizontally, and power pits 5 positioned below the ground are respectively arranged on the ground at two sides of the pit body 1; the two slide rails 40 are respectively and fixedly arranged at the bottoms of the two power pits 9 in a detachable manner; the movable end of the first electric push rod 42 is fixedly connected with one side surface of the sliding block 41; the left pit cover 20 and the right pit cover 21 are both fixedly arranged above the slider 41. The top of the sliding block 41 is fixedly provided with a supporting plate 5, the lifting mechanism comprises vertically arranged second electric push rods 6, and the movable ends of the two second electric push rods 6 are respectively fixedly connected with the bottoms of the left pit cover 20 and the right pit cover 21. The side surfaces of the left pit cover 20 and the right pit cover 21 which are close to each other are clamped through a clamping mechanism;

the pit cover of the heat preservation pit provided by the embodiment is in an initial state that the left pit cover and the right pit cover are separated, and then the inner pit body of the pit body can be seen from the bottom of the inner pit body from the overlooking angle. Then hang the continuous casting billet through the form of hoist and mount and go into the internal portion of interior pot head and place, hang and put the completion back, can start the first electric putter reverse motion of pot head both sides, be located the left first electric putter's of pot head activity right side promptly, and the first electric putter's that is located pot head right side activity left side, then drive left pot head and right pot head respectively through the first electric putter of pot head both sides and cover the relative motion, and stop after left pot head and right pot head pass through the block mechanism joint. At the moment, the first electric push rod is closed, the second electric push rods are started simultaneously, and the two second electric push rods respectively drive the left pit cover and the right pit cover to move downwards until the whole formed by the left pit cover and the right pit cover completely covers and seals the whole pit body. When the heat preservation finishes and needs to be hung out the continuous casting billet and carry out processing on next step, the accessible starts the second electric putter at heat preservation hole both sides, two second electric putter drive left side pot head and right pot head upward movement in vertical direction, make the bottom of left side pot head and right pot head break away from the upper surface of heat preservation hole after, shut down two second electric putter, restart two first electric putter simultaneously, make the expansion end that is located the left first electric putter of the pit body move left, and the expansion end that is located the first electric putter on pit body right side moves right, then drive the left pot head and the right pot head separation and the reverse motion of joint respectively through the first electric putter of pit body both sides, and can see the bottom of interior pot head completely from the angle of overlooking until the interior pot head that moves to the pot head, the inside of interior pot head is hung out to the continuous casting billet of continuous casting billet follow interior pot head through the form of hoist again, can repeat the above-mentioned step of hanging into the heat preservation hole and seal the heat preservation hole with the continuous casting billet if need to place the continuous casting billet of hanging down in the heat preservation hole, avoid the faster cooling of continuous casting billet in the heat preservation hole.

It should be noted that, in this embodiment, both the first electric push rod and the second electric push rod can control start and stop of the first electric push rod through an external control end, and the control manner is a conventional technical means in the art, so details of the principle and the control process of the control means are not described in this embodiment.

It is further noted that the engaging mechanism of the present embodiment includes a projection 30 and a slot 31, the projection 30 is fixedly disposed on a side surface of the left pit cover 20, the slot 31 is opened on a side surface of the right pit cover 21 close to the left pit cover 20, and the projection 30 and the slot 31 form the engaging mechanism.

In this embodiment, the convex block of the left pit cover is inserted into the clamping groove of the right pit cover to be clamped, so that the left pit cover and the right pit cover are clamped to form a whole pit cover.

In this embodiment, the insulating layer 7 is bonded to the inner wall surface of the inner pit body 11. The heat-insulating layer of the embodiment adopts a ceramic fiber heat-insulating layer.

The embodiment can enhance the heat preservation performance of the heat preservation pit by arranging the heat preservation layer on the inner surface of the pit body, and further avoids the continuous casting billet from being cooled in the heat preservation pit more quickly.

In this embodiment, the pit body 1 comprises an outer pit body 10 and an inner pit body 11, an interlayer 12 is arranged between the outer pit body 10 and the inner pit body 11, and the heating assembly 8 is detachably and fixedly arranged in the interlayer 12. The heating assembly of this embodiment may be an electric heating device or other heating devices, and the present invention is not limited thereto. And control above-mentioned heating device be outside control end, for more accurate control heating element when begin work and when finish work, to this, this embodiment can set up temperature sensor in the inside of heat preservation pit in order to monitor the temperature in the heat preservation pit and transmit this temperature signal to control end, and control end can be according to the temperature control heating element that monitors when begin to heat, and the heating stops when. This control means is also conventional in the art.

This embodiment is through making the heat preservation hole divide into outer pot body and interior pot body and make and form the heating space between outer pot body and the interior pot body, can preheat the heat preservation hole through the heating element who sets up in the heating space to make the inside temperature rise of heat preservation hole, thereby reduce the temperature difference between continuous casting billet and the heat preservation hole, further avoid the continuous casting billet to keep warm in the hole faster cooling.

Finally, only the specific embodiments of the present invention have been described in detail. The invention is not limited to the specific embodiments described above. Equivalent modifications and substitutions by those skilled in the art to the present invention are also within the scope of the present invention. Accordingly, variations and modifications in equivalents may be made without departing from the spirit and scope of the invention, which is intended to be covered by the following claims.

Claims

1. The utility model provides a heat preservation pit for continuous casting billet, includes square pit body (1) and is located pit body (1) top just is used for sealing pit cover (2) of the pit body (1), its characterized in that:

the pit cover (2) comprises a left pit cover (20) and a right pit cover (21) which are horizontally arranged, and the side surfaces, close to each other, of the left pit cover (20) and the right pit cover (21) are clamped through a clamping mechanism;

the left pit cover (20) and the right pit cover (21) are lifted in the vertical direction through a lifting mechanism;

the left pit cover (20) and the right pit cover (21) are both moved in the horizontal direction through a horizontal moving mechanism.

2. A heat-preserving pit for a continuous casting slab as claimed in claim 1, wherein:

the clamping mechanism comprises a convex block (30) and a clamping groove (31), the convex block (30) is fixedly arranged on one side face of the left pit cover (20), the clamping groove (31) is formed in the side face, close to the left pit cover (20), of the right pit cover (21), and the convex block (30) and the clamping groove (31) form the clamping mechanism.

3. A heat-preserving pit for a slab as claimed in any one of claims 1 to 2, wherein:

the horizontal moving mechanism comprises a slide rail (40), a slide block (41) connected to the slide rail (40) in a sliding manner and a first electric push rod (42) arranged horizontally, and power pits (9) positioned below the ground are respectively arranged on the ground at the two sides of the pit body (1); the two slide rails (40) are respectively and fixedly arranged at the bottoms of the two power pits (9) in a detachable manner;

the movable end of the first electric push rod (42) is fixedly connected with one side surface of the sliding block (41);

the left pit cover (20) and the right pit cover (21) are both fixedly arranged above the sliding block (41).

4. A heat-preserving pit for a continuous casting slab as claimed in claim 3, wherein:

the top of the sliding block (41) is fixedly provided with a supporting plate (5), the lifting mechanism comprises second electric push rods (6) which are vertically arranged, and the movable ends of the two second electric push rods (6) are fixedly connected with the bottoms of the left pit cover (20) and the right pit cover (21) respectively.

5. A heat-preserving pit for a continuous casting slab as claimed in claim 1, wherein:

the pit body (1) comprises an outer pit body (10) and an inner pit body (11), an interlayer (12) is arranged between the outer pit body (10) and the inner pit body (11), and a heating component (8) is detachably and fixedly arranged in the interlayer (12).

6. A heat preservation pit for a continuous casting slab as claimed in claim 5, characterized in that:

and a heat-insulating layer (7) is bonded on the surface of the inner side wall of the inner pit body (11).