CN211071808U

CN211071808U - Vacuum molten steel leaking bottom bag

Info

Publication number: CN211071808U
Application number: CN201921860348.2U
Authority: CN
Inventors: 张轶
Original assignee: Hubei Qinhong New Materials Co ltd
Current assignee: Hubei Qinhong New Materials Co ltd
Priority date: 2019-10-31
Filing date: 2019-10-31
Publication date: 2020-07-24
Anticipated expiration: 2029-10-31

Abstract

The utility model relates to a take vaccum molten steel to leak end package, including the molten steel ladle main part, the molten steel ladle main part includes supporting layer, filling layer and heat-resisting layer, the filling layer is connected with the inner wall of supporting layer, the heat-resisting layer is connected with the inner wall of filling layer, the ladle mouth of a river that runs through filling layer and supporting layer in proper order has been seted up at heat-resisting layer intracavity diapire middle part, a plurality of vacuum chambers have been seted up to the inside of filling layer, communicate between the adjacent vacuum chamber, the molten steel leaks end package still includes two air guide heads; the air guide head comprises a fixed cylinder and a communicating pipe, the fixed cylinder is installed on the heat-resistant layer, and the air outlet is flush with the heat-resistant layer. The utility model discloses take vacuum molten steel to leak the end package, can prevent effectively that the deposit from flowing back to the gas port of carrying inert gas, effectively avoid the gas port to block up, guarantee the continuation that inert gas carried to make molten steel and slag be difficult for permeating in the pouring material, avoid taking place the adhesion, guaranteed the quality of pouring.

Description

Vacuum molten steel leaking bottom bag

Technical Field

The utility model relates to a casting equipment technical field specifically is a take vacuum molten steel to leak end package.

Background

The ladle is used for receiving molten steel in front of an open hearth furnace, an electric furnace or a converter for pouring in a steel plant and a foundry, the structural form of the ladle is a stopper rod type ladle and a sliding nozzle type ladle, a portal frame is provided with a hook-releasing type ladle and a bearing type ladle, and a sliding rod gap eliminating mechanism is arranged in a lifting mechanism of the stopper rod type ladle so as to ensure the consistency of the center of the stopper rod and the center of the nozzle after repeated use.

In the continuous casting process of the steel ladle, the problem that the temperature of the molten steel is too high in the later casting stage, so that the molten steel is too high in the temperature reduction, the molten steel is frozen on the inner wall of the ladle, and a casting switch of the steel ladle after the temperature reduction is easy to freeze and cannot be opened, so that the molten steel cannot be cast is solved, the steel ladle is provided with a vacuum molten steel leaking bottom ladle which is provided by the Chinese patent CN 108393476A, so that the conduction and convection of heat are effectively avoided, the problem that the molten steel is too high in the temperature reduction, and the problem that the molten steel is too early frozen on the inner wall of the steel ladle is effectively prevented, but in the actual casting process, in order to avoid the adhesion of the molten steel and molten slag, inert gas needs to be introduced for protection, but oxides are easy to deposit near a water gap sealing area, and sediments are easy to flow back to a gas port for conveying the inert gas, therefore, the adhesion is easy to occur, and the pouring effect is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the technical problem who exists among the prior art, provide a take vacuum molten steel to leak end package and solve above-mentioned problem.

The utility model provides an above-mentioned technical problem's technical scheme as follows: a molten steel leaking bottom ladle with vacuum comprises a molten steel ladle main body, wherein the molten steel ladle main body comprises a supporting layer, a filling layer and a heat-resistant layer, the filling layer is connected with the inner wall of the supporting layer, the heat-resistant layer is connected with the inner wall of the filling layer, a ladle water gap sequentially penetrating through the filling layer and the supporting layer is formed in the middle of the inner bottom wall of the cavity of the heat-resistant layer, a plurality of vacuum cavities are formed in the filling layer, adjacent vacuum cavities are communicated, and the molten steel leaking bottom ladle further comprises two gas guide heads;

the gas guide head comprises a fixed cylinder and a communicating pipe, the fixed cylinder is installed on the heat-resistant layer, the gas outlet is flush with the heat-resistant layer, the communicating pipe is communicated with the bottom end of the fixed cylinder and extends into the filling layer, an air guide pipe is communicated between the two fixed cylinders, an air inlet pipe extending to the outside of the supporting layer is arranged on the air guide pipe, and a one-way current limiting assembly is arranged inside the fixed cylinder.

Further, the vacuum cavity is communicated with an exhaust pipe extending to the outside of the supporting layer, and the vacuum cavity is also communicated with a pressure relief pipe extending to the outside of the supporting layer.

Furthermore, one-way current-limiting component includes mounting panel, carrier block, mounting panel and carrier block all set up in fixed section of thick bamboo, and the carrier block is located the top of mounting panel.

Further, one-way current-limiting component still includes dead lever, connecting block and baffle, the fixed lever erects at the mounting panel, be provided with the air guide passageway on the mounting panel for the air current between intercommunication solid fixed cylinder and the communicating pipe, the top of dead lever is connected with pulls the piece, pull on the piece movable mounting have two with the baffle of carrier block laminating, be connected with between baffle and the dead lever and pull the piece.

Further, be provided with water conservancy diversion portion on the heat-resistant layer, be equipped with the depressed part on the water conservancy diversion portion, the gas port corresponding with the fixed cylinder has still been seted up to the water conservancy diversion portion.

Further, a reinforcing hoop is arranged outside the supporting layer.

The utility model has the advantages that: the vacuum molten steel leaking bottom bag can effectively prevent sediment from flowing back to the gas port for conveying inert gas, effectively avoids blocking of the gas port, and guarantees the continuity of inert gas conveying, so that molten steel and molten slag are not easy to permeate in a pouring material, adhesion is avoided, and pouring quality is guaranteed.

Drawings

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

FIG. 2 is an enlarged view of the present invention at A in FIG. 1;

fig. 3 is a schematic structural view of the air guide head of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

the steel ladle comprises a steel ladle body 1, a supporting layer 11, a filling layer 12, a vacuum chamber 121, an exhaust pipe 12a, a pressure relief pipe 12b, a heat-resistant layer 13, a gas guide head 2, a fixed cylinder 21, a communicating pipe 22, a gas guide pipe 3, a gas inlet pipe 3a, a steel ladle nozzle 4, a one-way flow limiting assembly 5, a mounting plate 51, a bearing block 52, a fixed rod 53, a connecting block 54, a partition plate 55, a traction piece 56, a flow guide part 6 and a reinforcing hoop 7.

Detailed Description

The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.

The utility model also provides an preferred embodiment

As shown in fig. 1-3, the ladle with vacuum includes a ladle body 1, the ladle body 1 includes a supporting layer 11, a filling layer 12 and a heat-resistant layer 13, the supporting layer 11 can be made of high manganese steel or steel with high strength, the heat-resistant layer 13 can be made of refractory bricks with high heat-resistant strength by integral molding, the filling layer 12 is connected with the inner wall of the supporting layer 11, a reinforcing hoop 7 is installed outside the supporting layer 11, the reinforcing hoop 7 can increase the stress strength outside the supporting layer 11, the heat-resistant layer 13 is connected with the inner wall of the filling layer 12, a ladle nozzle 4 sequentially penetrating the filling layer 12 and the supporting layer 11 is arranged in the middle of the inner bottom wall of the cavity of the heat-resistant layer 13, a plurality of vacuum cavities 121 are arranged inside the filling layer 12, the adjacent vacuum cavities 121 are communicated, the plurality of vacuum cavities 121 are communicated to ensure that the inside of the filling layer 12 reaches a local vacuum state and ensure the, the molten steel leakage bottom ladle also comprises two gas guide heads 2, a vacuum cavity 121 is communicated with an exhaust pipe 12a extending to the outside of the supporting layer 11, the vacuum cavity 121 is also communicated with a pressure relief pipe 12b extending to the outside of the supporting layer 11, the exhaust pipe 12a is externally connected with vacuum pumping equipment, and the vacuum pumping equipment performs air pumping to ensure that the vacuum cavity 121 is in vacuum, so that the heat exchange efficiency of molten steel is effectively reduced, and the heat insulation performance is improved;

the gas guide head 2 comprises a fixed cylinder 21 and a communicating pipe 22, the fixed cylinder 21 is installed on a heat-resistant layer 13, a gas outlet is flush with the heat-resistant layer 13, the communicating pipe 22 is communicated with the bottom end of the fixed cylinder 21, a flow guide part 6 is arranged on the heat-resistant layer 13, a concave part is arranged on the flow guide part 6, molten steel can be effectively guided into a ladle nozzle through the concave part, the nozzle of an original bottom leakage ladle is arranged in the area which is on the outer side of the bottom end surface and cannot effectively guide out the molten steel, the technical scheme is that the ladle nozzle 4 is arranged in the middle of the bottom end surface of the bottom leakage ladle to facilitate the outflow of the molten steel, the flow guide part 6 is further provided with a gas port corresponding to the fixed cylinder 21 and extends into a filling layer 12, a gas guide pipe 3 is communicated between the two fixed cylinders 21, a gas inlet pipe 3a extending to the outside of a supporting layer 11 is arranged on, The bearing block 52, the mounting plate 51 and the bearing block 52 are both arranged in the fixed cylinder 21, and the bearing block 52 is located above the mounting plate 51, the one-way flow limiting assembly 5 further comprises a fixing rod 53, a connecting block 54 and a partition plate 55, the fixing rod 53 is erected on the mounting plate 51, the mounting plate 51 is provided with an air guide channel for communicating air flow between the fixed cylinder 21 and the communicating pipe 22, the top end of the fixing rod 53 is connected with a traction piece 56, the traction piece 56 can be a flexible elastic structure such as a spring coil, the traction piece 56 is movably provided with two partition plates 55 attached to the bearing block 52, the traction piece 56 is connected between the partition plate 55 and the fixing rod 53, inert gas is introduced through the air inlet pipe 3a, the gas is introduced into the communicating pipe 22 through the air guide pipe 3, after the inert gas is introduced into the fixed cylinder 21, the pressure of the fixed cylinder is increased, meanwhile, the traction piece 56 is stretched, so that inert gas enters molten steel, in the pouring process, oxides can be deposited in the bottom area of the bottom drain ladle, when the ventilation interruption or the air pressure reduction occurs, deposited impurities can be accumulated at the inlet of the fixed cylinder 21, the pressure in the fixed cylinder 21 is reduced at the moment, meanwhile, the traction piece 56 pulls the partition plate 55 to return, so that the fixed cylinder 21 is sealed, the deposited impurities are prevented from entering the whole gas guide head 2, the gas conveying difficulty caused by the blockage of the impurity is avoided, the molten steel and molten slag are effectively prevented from permeating in pouring materials, and the pouring quality is ensured.

In conclusion, the vacuum molten steel leaking bottom bag can effectively prevent the sediment from flowing back to the gas port for conveying the inert gas, effectively avoid the blockage of the gas port and ensure the continuity of the inert gas conveying, so that the molten steel and the molten slag are not easy to permeate in the casting material, the adhesion is avoided, and the casting quality is ensured.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. The utility model provides a take vacuum molten steel to leak end package, includes ladle main part (1), its characterized in that: the ladle body (1) comprises a supporting layer (11), a filling layer (12) and a heat-resistant layer (13), wherein the filling layer (12) is connected with the inner wall of the supporting layer (11), the heat-resistant layer (13) is connected with the inner wall of the filling layer (12), the middle part of the inner bottom wall of a cavity of the heat-resistant layer (13) is provided with a ladle water gap (4) which sequentially penetrates through the filling layer (12) and the supporting layer (11), a plurality of vacuum cavities (121) are formed in the filling layer (12), the adjacent vacuum cavities (121) are communicated, and the ladle leakage bottom package further comprises two gas guide heads (2);

air guide head (2) are including solid fixed cylinder (21) and communicating pipe (22), gu fixed cylinder (21) is installed on heat-resistant layer (13), and the gas outlet flushes with heat-resistant layer (13), communicating pipe (22) and the bottom intercommunication of solid fixed cylinder (21), and extend to filling layer (12) in, the intercommunication has air duct (3) between two solid fixed cylinder (21), be provided with on air duct (3) and extend to supporting layer (11) outside intake pipe (3a), the inside of solid fixed cylinder (21) is provided with one-way current-limiting component (5).

2. The ladle according to claim 1, wherein the ladle comprises: the vacuum cavity (121) is communicated with an air exhaust pipe (12a) extending to the outside of the supporting layer (11), and the vacuum cavity (121) is also communicated with a pressure relief pipe (12b) extending to the outside of the supporting layer (11).

3. The ladle according to claim 1, wherein the ladle comprises: the one-way current limiting assembly (5) comprises a mounting plate (51) and a bearing block (52), wherein the mounting plate (51) and the bearing block (52) are both arranged in the fixed cylinder (21), and the bearing block (52) is positioned above the mounting plate (51).

4. The ladle according to claim 3, wherein the ladle comprises: one-way current-limiting subassembly (5) still includes dead lever (53), connecting block (54) and baffle (55), mounting panel (51) are erect in dead lever (53), be provided with the air guide passageway on mounting panel (51) for the air current between fixed section of thick bamboo (21) of intercommunication and communicating pipe (22), the top of dead lever (53) is connected with draws piece (56), draw on piece (56) movable mounting have two with baffle (55) of carrier block (52) laminating, be connected with between baffle (55) and dead lever (53) and draw piece (56).

5. The ladle according to claim 4, wherein the ladle comprises: be provided with water conservancy diversion portion (6) on heat-resistant layer (13), be equipped with the depressed part on water conservancy diversion portion (6), the gas port corresponding with solid fixed cylinder (21) has still been seted up in water conservancy diversion portion (6).

6. The ladle according to claim 5, wherein the ladle comprises: and a reinforcing hoop (7) is arranged outside the supporting layer (11).