CN218591769U - Billet heating heat preservation hole - Google Patents

Abstract

The utility model belongs to the technical field of the heat preservation hole, and a steel billet heating heat preservation hole is disclosed, including the fixed body, the pit has been seted up to the right-hand member of the fixed body, the inner wall fixed mounting of pit has resistant firebrick, the steel rolling heating furnace has been placed to the right-hand member of the fixed body, the top fixed mounting of steel rolling heating furnace has flue gas blowback equipment, the left end fixed intercommunication of flue gas blowback equipment has the chimney, the fixed intercommunication of right-hand member of chimney has the pipe of discharging fume. The utility model discloses an air pump carries the coal gas of flue gas blowback equipment inner chamber to the inner chamber of second gas piping through first gas piping and third gas piping, again by the coal gas nozzle with gas combustion for the inner chamber temperature of pit risees to the required temperature, can place the top surface that needs heat retaining steel billet in the steel billet buttress position after that, keeps warm to the steel billet, places the steel billet and places and cool down rapidly under normal atmospheric temperature.

Description

Billet heating heat preservation pit

Technical Field

The utility model belongs to the technical field of the hole that keeps warm, specifically a steel billet heating heat preservation hole.

Background

At present iron and steel enterprise, the continuous casting billet of steelmaking production in short flow and long flow all is with the mode of hot delivery to send into the steel rolling heating furnace, when the daily roll change of steel rolling or production accident appear, the steel rolling heating furnace just can't directly be sent into to the 600-700 ℃ hot billet of steelmaking production, need place on the steel billet stack position, steel billet stack position is most directly placed on ground, this temperature that can make hot billet descends, can become cold billet after certain time, when cold billet reentrant heating furnace, will increase heating time and waste gas, still can influence the rolling line output.

SUMMERY OF THE UTILITY MODEL

For solving the problem that proposes among the above-mentioned background art, the utility model provides a steel billet heating heat preservation hole has the advantage of avoiding hot base to place at steel billet buttress position upper end temperature decline.

In order to achieve the above object, the utility model provides a following technical scheme: a steel billet heating heat preservation pit comprises a fixing body, wherein a pit is formed in the right end of the fixing body, a refractory brick is fixedly mounted on the inner wall of the pit, a steel rolling heating furnace is placed at the right end of the fixing body, a flue gas back-blowing device is fixedly mounted at the top of the steel rolling heating furnace, a chimney is fixedly communicated with the left end of the flue gas back-blowing device, a smoke exhaust pipe is fixedly communicated with the right end of the chimney, a first gas pipeline is fixedly communicated with the right end of the flue gas back-blowing device, an air pump is fixedly communicated with the middle of the first gas pipeline, a second gas pipeline is fixedly communicated with the lower end of the first gas pipeline, a third gas pipeline is fixedly communicated with the rear end of the second gas pipeline, a gas burner is fixedly communicated with the middle of the second gas pipeline, and a steel billet stacking position is placed at the lower end of the pit.

Among the above-mentioned technical scheme, it is preferred, first spacing groove has been seted up to the upper end of the fixed body, the middle part swing joint of first spacing groove has the heat preservation pot cover, fire-resistant cotton has been placed at the middle part of heat preservation pot cover, the rear end fixed mounting of heat preservation pot cover has the connector, the middle part swing joint of connector has the lead screw, the second spacing groove has been seted up to the rear end of the fixed body, the fixed cover of right-hand member of lead screw has connect the motor, the rotation groove has been seted up to the front end of heat preservation pot cover, the inner chamber swing joint in rotation groove has the axis of rotation, the front end swing joint of axis of rotation has the rotation wheel, the third spacing groove has been seted up to the front end of the fixed body.

In the above technical scheme, preferably, the air pump is fixedly connected with the steel rolling heating furnace, the refractory bricks are positioned on the four walls of the inner cavity of the pit, and the billet stack position is positioned on the bottom surface of the inner cavity of the pit.

In the above technical scheme, preferably, the top view of the pit is square, the billet stack position is matched with the gas burner, and the length of the inner cavity of the pit is greater than the length of the billet placed in the pit by three meters.

In the above technical scheme, preferably, the smoke exhaust pipe is communicated with an inner cavity of the pit, the fixing body is fixedly connected with the smoke exhaust pipe, and the second gas pipelines are symmetrically distributed with a transverse central axis of the pit as a center.

In the above technical scheme, preferably, the first limiting groove is communicated with the upper end of the pit, the rear end of the first limiting groove is communicated with the second limiting groove, and the lead screw is movably connected with the fixing body.

In the above technical scheme, preferably, the second limiting groove is movably connected with the connecting body, the third limiting groove is movably connected with the rotating wheel, and the rotating shaft is movably connected with the third limiting groove.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses an air pump carries the coal gas of flue gas blowback equipment inner chamber to the inner chamber of second gas piping through first gas piping and third gas piping, again by the coal gas nozzle with gas combustion for the inner chamber temperature of pit risees to needs temperature, can place the top surface that the steel billet buttress position was piled up the stack up with the heat retaining steel billet of needs after that, keeps warm to the steel billet, prevents that the steel billet from placing and cooling rapidly under the normal atmospheric temperature.

2. The utility model discloses a motor drives the lead screw and rotates, drives the connector and the removal of heat preservation pot head by the lead screw again for the heat preservation pot head removes to the inner chamber upper end of pit, thereby makes the inner chamber of pit airtight, even the temperature that makes the pit inner chamber can rise fast and be difficult for the cooling, strengthens the heat preservation effect of pit to the steel billet.

Drawings

FIG. 1 is a schematic view of the whole structure of the present invention;

FIG. 2 is a schematic view of the connection of the heat-preservation pit cover of the present invention;

fig. 3 is a cross-sectional view of the fixing body of the present invention;

fig. 4 is an enlarged schematic view of fig. 3 a according to the present invention;

fig. 5 is an enlarged schematic view of fig. 3 at B according to the present invention;

fig. 6 is a schematic connection diagram of a first gas pipeline of the present invention;

fig. 7 is a schematic connection diagram of a second gas pipeline according to the present invention.

In the figure: 1. a fixed body; 2. a pit; 3. a refractory brick; 4. a steel rolling heating furnace; 5. a flue gas back-blowing device; 6. a chimney; 7. a smoke exhaust pipe; 8. a first gas conduit; 9. an air pump; 10. a second gas conduit; 11. a third gas conduit; 12. a gas burner; 13. stacking a billet; 14. a first limit groove; 15. a heat preservation pit cover; 16. refractory cotton; 17. a linker; 18. a lead screw; 19. a second limit groove; 20. a motor; 21. a rotating groove; 22. a rotating shaft; 23. a third limiting groove; 24. and rotating the wheel.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1 to 7, the utility model provides a steel billet heating heat preservation pit, including the fixed body 1, pit 2 has been seted up to the right-hand member of fixed body 1, the inner wall fixed mounting of pit 2 has resistant firebrick 3, steel rolling heating furnace 4 has been placed to the right-hand member of fixed body 1, steel rolling heating furnace 4's top fixed mounting has flue gas blowback equipment 5, the left end fixed intercommunication of flue gas blowback equipment 5 has chimney 6, the right-hand member fixed intercommunication of chimney 6 has smoke exhaust pipe 7, the right-hand member fixed intercommunication of flue gas blowback equipment 5 has first gas conduit 8, the middle part fixed intercommunication of first gas conduit 8 has air pump 9, the lower extreme fixed intercommunication of first gas conduit 8 has second gas conduit 10, the rear end fixed intercommunication of second gas conduit 10 has third gas conduit 11, the middle part fixed intercommunication of second gas conduit 10 has gas nozzle 12, steel billet pile position 13 has been placed to the lower extreme of pit 2;

a first gas pipeline 8 is fixedly communicated with the right end of the flue gas back flushing device 5, a second gas pipeline 10 is fixedly communicated with the lower end of the first gas pipeline 8, a third gas pipeline 11 is fixedly communicated with the rear end of the second gas pipeline 10, and a gas burner 12 is fixedly communicated with the middle of the second gas pipeline 10, so that gas in the inner cavity of the flue gas back flushing device 5 can enter the inner cavity of the first gas pipeline 8, gas in the inner cavity of the first gas pipeline 8 can enter the inner cavity of the second gas pipeline 10, gas in the inner cavities of the second gas pipelines 10 at the upper end and the lower end can be communicated through the third gas pipeline 11, and gas in the inner cavity of the third gas pipeline 11 can heat billets in the inner cavity of the pit 2 through the gas burner 12;

thereby the coal gas recovered from the inner cavity of the flue gas back-blowing device 5 can heat the steel billet in the inner cavity of the pit 2, and the coal gas recovered from the flue gas back-blowing device 5 can be reused to save resources.

As shown in fig. 1 to 5, a first limiting groove 14 is formed at the upper end of a fixed body 1, a heat preservation pit cover 15 is movably connected to the middle of the first limiting groove 14, refractory cotton 16 is placed in the middle of the heat preservation pit cover 15, a connecting body 17 is fixedly installed at the rear end of the heat preservation pit cover 15, a lead screw 18 is movably connected to the middle of the connecting body 17, a second limiting groove 19 is formed at the rear end of the fixed body 1, a motor 20 is fixedly connected to the right end of the lead screw 18, a rotating groove 21 is formed at the front end of the heat preservation pit cover 15, a rotating shaft 22 is movably connected to the inner cavity of the rotating groove 21, a rotating wheel 24 is movably connected to the front end of the rotating shaft 22, and a third limiting groove 23 is formed at the front end of the fixed body 1;

the scheme is adopted: a connecting body 17 is fixedly installed at the rear end of the heat preservation pit cover 15, a lead screw 18 is movably connected to the middle of the connecting body 17, and a motor 20 is fixedly sleeved at the right end of the lead screw 18, so that the connecting body 17 can drive the heat preservation pit cover 15 to move, the lead screw 18 can drive the connecting body 17 to move, the motor 20 can drive the lead screw 18 to move, refractory cotton 16 is placed in the middle of the heat preservation pit cover 15, and the refractory cotton 16 can be filled in the inner cavity of the heat preservation pit cover 15 to prevent the heat preservation pit cover 15 from deforming;

therefore, the motor 20 can drive the heat preservation pit cover 15 to move through the screw rod 18 and the connecting body 17, the heat preservation pit cover 15 can be conveniently moved to the upper end of the inner cavity of the pit 2, the temperature of the inner cavity of the pit 2 is not easy to dissipate, and the refractory cotton 16 can enhance the heat preservation performance of the heat preservation pit cover 15.

As shown in fig. 1 and fig. 2, an air pump 9 is fixedly connected with a steel rolling heating furnace 4, refractory bricks 3 are positioned on the four walls of the inner cavity of the pit 2, and a billet stack position 13 is positioned on the bottom surface of the inner cavity of the pit 2;

the scheme is adopted: the air pump 9 is fixedly connected with the steel rolling heating furnace 4, the refractory bricks 3 are positioned on the four walls of the inner cavity of the pit 2, and the steel billet stack position 13 is positioned on the bottom surface of the inner cavity of the pit 2, so that the steel rolling heating furnace 4 can limit the position of the air pump 9, the refractory bricks 3 can enhance the heat preservation of the inner cavity of the pit 2, and the position of the steel billet stack position 13 is limited;

therefore, the air pump 9 can be normally used, the first gas pipeline 8 conveys gas in the inner cavity of the chimney 6 to the inner cavity of the second gas pipeline 10, the temperature of the inner cavity of the pit 2 rises, and the billet stack position 13 can effectively support billets.

As shown in fig. 2, the top view of the pit 2 is square, the billet stack 13 is matched with the gas burner 12, and the length of the inner cavity of the pit 2 is more than three meters;

adopt above-mentioned scheme: the plan view of the pit 2 is square, the billet stack position 13 is matched with the gas burner 12, and the length value of the inner cavity of the pit 2 is more than four meters than the length value of the billet to be placed, so that the billet is easy to be placed in the inner cavity of the pit 2, and the billet stack position 13 has a good use effect;

the steel billet is easy to hang and take, and the heat preservation pit is easy to use.

As shown in fig. 5 and 6, the smoke exhaust pipe 7 is communicated with the inner cavity of the pit 2, the fixing body 1 is fixedly connected with the smoke exhaust pipe 7, and the second gas pipelines 10 are symmetrically distributed by taking the transverse central axis of the pit 2 as the center;

adopt above-mentioned scheme: the exhaust pipe 7 is communicated with the inner cavity of the pit 2, the fixing body 1 is fixedly connected with the exhaust pipe 7, and the exhaust pipes are symmetrically distributed by taking the transverse central axis of the pit 2 as the center through the second gas pipeline 10, so that the exhaust gas in the inner cavity of the pit 2 can enter the inner cavity of the exhaust pipe 7, the fixing body 1 can limit the position of the exhaust pipe 7, and the heating effect of the inner cavity of the pit 2 is better;

therefore, waste gas in the inner cavity of the pit 2 can enter the inner cavity of the chimney 6 through the smoke exhaust pipe 7 and then is exhausted together with the waste gas in the inner cavity of the chimney 6, the cost of later maintenance is reduced, and the temperature rising speed of the inner cavity of the pit 2 is high and uniform.

As shown in fig. 3 and 4, the upper end of the pit 2 is communicated with the first limit groove 14, the rear end of the first limit groove 14 is communicated with the second limit groove 19, and the screw 18 is movably connected with the fixed body 1;

adopt above-mentioned scheme: the upper end of the pit 2 is communicated with the first limiting groove 14, the rear end of the first limiting groove 14 is communicated with the second limiting groove 19, and the screw 18 is movably connected with the fixed body 1, so that the heat-preservation pit cover 15 can move to the upper end of the inner cavity of the pit 2 from the inner cavity of the first limiting groove 14, the inner wall of the pit 2 is sealed, the connecting body 17 can drive the heat-preservation pit cover 15 to move, and the screw 18 can normally work;

therefore, the sealing effect of the inner cavity of the pit 2 is good, and the heat-preservation pit cover 15 is convenient to move and use.

As shown in fig. 4 and 5, the second limiting groove 19 is movably connected with the connecting body 17, the third limiting groove 23 is movably connected with the rotating wheel 24, and the rotating shaft 22 is movably connected with the third limiting groove 23;

the scheme is adopted: the second limiting groove 19 is movably connected with the connecting body 17, the third limiting groove 23 is movably connected with the rotating wheel 24, and the rotating shaft 22 is movably connected with the third limiting groove 23, so that the second limiting groove 19 can limit the moving position of the connecting body 17, and the third limiting groove 23 can limit the moving positions of the rotating wheel 24 and the rotating shaft 22;

therefore, the connecting body 17 can drive the heat preservation pit cover 15 to move horizontally to the top end of the pit 2, the inner cavity of the pit 2 is sealed, the third limiting groove 23 can limit the moving direction of the heat preservation pit cover 15 through limiting the positions of the rotating wheel 24 and the rotating shaft 22, and the resistance of the heat preservation pit cover 15 during moving is reduced.

The utility model discloses a theory of operation and use flow:

when the device is used, the air pump 9 is started to convey coal gas in the inner cavity of the smoke back-blowing device 5 to the inner cavity of the second gas pipeline 10 through the first gas pipeline 8 and the third gas pipeline 11, then the coal gas is combusted through the gas burner 12, so that the temperature of the inner cavity of the pit 2 is raised to a required temperature, then a steel billet to be subjected to heat insulation is placed on the top surface of the billet stacking position 13, the motor 20 is started to drive the screw rod 18 to rotate, the screw rod 18 drives the connecting body 17 to move, the connecting body 17 drives the heat insulation pit cover 15 to move, at the moment, the rotating shaft 22 rotates the rotating wheel 24 in the inner cavities of the rotating groove 21 and the third limiting groove 23 until the heat insulation pit cover 15 moves to the upper end of the inner cavity of the pit 2, so that the inner cavity of the pit 2 is sealed, the steel billet is subjected to heat insulation, and waste gas generated during coal gas combustion is conveyed to the inner cavity of the chimney 6 through the smoke exhaust pipe 7 and then is exhausted together with the waste gas in the inner cavity of the chimney 6.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The utility model provides a steel billet heating heat preservation pit, includes fixed body (1), its characterized in that: the steel rolling furnace is characterized in that a pit (2) is formed in the right end of the fixing body (1), refractory bricks (3) are fixedly mounted on the inner wall of the pit (2), a steel rolling heating furnace (4) is placed at the right end of the fixing body (1), a flue gas back-blowing device (5) is fixedly mounted at the top of the steel rolling heating furnace (4), a chimney (6) is fixedly communicated with the left end of the flue gas back-blowing device (5), a smoke exhaust pipe (7) is fixedly communicated with the right end of the chimney (6), a first gas pipeline (8) is fixedly communicated with the right end of the flue gas back-blowing device (5), an air pump (9) is fixedly communicated with the middle of the first gas pipeline (8), a second gas pipeline (10) is fixedly communicated with the lower end of the first gas pipeline (8), a third gas pipeline (11) is fixedly communicated with the rear end of the second gas pipeline (10), a gas burner (12) is fixedly communicated with the middle of the second gas pipeline (10), and a billet stacking position (13) is placed at the lower end of the pit (2).

2. A steel billet heating and heat preserving pit as claimed in claim 1, wherein: first spacing groove (14) have been seted up to the upper end of the fixed body (1), the middle part swing joint of first spacing groove (14) has heat preservation pot lid (15), fire-resistant cotton (16) have been placed at the middle part of heat preservation pot lid (15), the rear end fixed mounting of heat preservation pot lid (15) has connector (17), the middle part swing joint of connector (17) has lead screw (18), second spacing groove (19) have been seted up to the rear end of the fixed body (1), the fixed cover of right-hand member of lead screw (18) has motor (20), rotation groove (21) have been seted up to the front end of heat preservation pot lid (15), the inner chamber swing joint that rotates groove (21) has axis of rotation (22), the front end swing joint of axis of rotation (22) has rotating wheel (24), third spacing groove (23) have been seted up to the front end of the fixed body (1).

3. A steel billet heating and heat preserving pit as claimed in claim 1, wherein: the air pump (9) is fixedly connected with the steel rolling heating furnace (4), the refractory bricks (3) are positioned on the four walls of the inner cavity of the pit (2), and the billet stack position (13) is positioned on the bottom surface of the inner cavity of the pit (2).

4. The steel billet heating and heat preserving pit as claimed in claim 1, wherein: the top view of the pit (2) is square, the billet stack position (13) is matched with the gas burner (12), and the length value of the inner cavity of the pit (2) is three meters greater than the length value of the billet placed in the pit.

5. A steel billet heating and heat preserving pit as claimed in claim 1, wherein: the smoke exhaust pipe (7) is communicated with an inner cavity of the pit (2), the fixing body (1) is fixedly connected with the smoke exhaust pipe (7), and the second gas pipelines (10) are symmetrically distributed by taking a transverse central axis of the pit (2) as a center.

6. The steel billet heating and heat preserving pit as claimed in claim 2, wherein: the first limiting groove (14) is communicated with the upper end of the pit (2), the rear end of the first limiting groove (14) is communicated with the second limiting groove (19), and the lead screw (18) is movably connected with the fixing body (1).

7. A steel billet heating and heat preserving pit as claimed in claim 2, wherein: the second limiting groove (19) is movably connected with the connecting body (17), the third limiting groove (23) is movably connected with the rotating wheel (24), and the rotating shaft (22) is movably connected with the third limiting groove (23).

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