Lining structure of aluminum ladle

Abstract

The utility model relates to the technical field of aluminum ladle liners, and discloses an aluminum ladle liner structure, a liner body is arranged in a ladle body, a sealing cover plate is arranged at the top of the ladle body, a pressure relief valve is fixedly connected to the top of the sealing cover plate, and a spiral guide plate with a plurality of air outlet holes is arranged in the liner body, so that the pressure relief valve is fixedly connected to the top of the sealing cover plate. During work, an external air pump injects gas into the cavity of the spiral flow guide plate through the heat-resistant gas injection pipe and the air inlet channel, the gas is sprayed out of the air outlet holes to push molten aluminum to flow, the spiral flow guide plate guides the molten aluminum to do spiral motion, and a spiral flow field is formed; the spiral flow field and a flow field generated by gas injection are mutually overlapped, axial and radial flow of molten aluminum is strengthened, stirring dead angles are effectively reduced, the molten aluminum circulates more sufficiently in the ladle, stirring is more uniform, temperature distribution of the molten aluminum is optimized, surface solidification of the molten aluminum is avoided, and the quality of the molten aluminum is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to aluminium ladle lining technical field especially relates to a kind of aluminium ladle lining structure. BACKGROUND

[0002] In the complex flow of aluminium electrolysis and subsequent processing process, aluminium ladle as key equipment, undertakes the heavy responsibility of dressing and transporting high-temperature liquid aluminium. High-temperature liquid aluminium is extremely high in temperature, and its nature is special. Its transportation process cannot afford any slip. Aluminium ladle plays an important role in linking different processes and ensuring the safe delivery of aluminium liquid in this link.

[0003] Traditional aluminium ladle generally lacks effective stirring structure. Due to the lack of reasonable stirring structure, the temperature distribution of aluminium liquid in the ladle is uneven. In the long-term transportation or storage process, the surface temperature of aluminium liquid is easy to decrease, which leads to the premature solidification of the surface part of aluminium liquid, while the internal aluminium liquid is still in liquid state. This not only affects the normal pouring and subsequent processing of aluminium liquid, but also may cause local overheating of the ladle, accelerate the damage of the lining material and shorten the service life of the ladle. SUMMARY

[0004] In view of the lack of reasonable stirring structure, the temperature distribution of aluminium liquid in the ladle is uneven. In the long-term transportation or storage process, the surface temperature of aluminium liquid is easy to decrease, which leads to the premature solidification of the surface part of aluminium liquid, while the internal aluminium liquid is still in liquid state. This not only affects the normal pouring and subsequent processing of aluminium liquid, but also may cause local overheating of the ladle, accelerate the damage of the lining material and shorten the service life of the ladle. The aluminium ladle lining structure provided by the utility model has the advantages of optimizing the temperature distribution of aluminium liquid, reducing the risk of local overheating of the ladle and prolonging the service life of the lining, and solves the problems mentioned in the background art.

[0005] The utility model provides the following technical scheme: a kind of aluminium ladle lining structure, including ladle body, the inside of the ladle body is equipped with lining body, the top of the ladle body is equipped with sealing cover plate, the top of the sealing cover plate is fixedly connected with pressure release valve, the inner wall of the lining body is fixedly connected with helical flow guide plate, the inside of the helical flow guide plate is cavity structure and its inner side is evenly equipped with multiple air outlet holes, the upper end of the lining body is equipped with air inlet passage, the inner side one end of the air inlet passage is connected with the inside of helical flow guide plate, the outer side of the air inlet passage extends to the outside of ladle body, the outside of the air inlet passage is equipped with ceramic fiber heat insulation layer, the outer surface upper end of the ladle body is connected with heat-resistant injection pipe, the installation place of the heat-resistant injection pipe on the ladle body is connected with air inlet passage.

[0006] Preferably, the heat-resistant injection pipe is connected with an external air pump, and the inner wall of the ladle body is filled with explosion-proof fiber felt.

[0007] The explosion-proof fiber felt is arranged, when an abnormality occurs in the aluminum ladle, the heat and the flame are blocked from spreading, explosion accidents are prevented from occurring or expanding, and the safety of the aluminum ladle is enhanced.

[0008] Preferably, the inner wall of the explosion-proof fiber felt is filled with aerogel felt filling material, and the outer wall of the inner lining body is in close contact with the inner wall of the aerogel felt filling material.

[0009] The inner wall of the ladle is filled with the aerogel felt filling material, and the outer wall of the inner lining body is in close contact with the aerogel felt filling material, so that the purpose of efficient heat insulation is achieved.

[0010] Preferably, the pressure release valve monitors the pressure value of the ladle in real time, and automatically opens when the pressure value exceeds a set threshold.

[0011] The pressure release valve is arranged, so that the ladle is prevented from being broken or exploded due to high internal pressure, and the safety and stability of the aluminum ladle are ensured.

[0012] Preferably, the bottom of the inner lining body is fixedly connected with an aluminum outlet pipe, and the aluminum outlet pipe extends through the outer side of the ladle to the outer side of the ladle.

[0013] The bottom of the inner lining body is fixedly connected with the aluminum outlet pipe, and the aluminum outlet pipe extends through the outer side of the ladle, so that the purpose of conveniently discharging the aluminum liquid is achieved.

[0014] Preferably, the upper end of the sealing cover plate is fixedly connected with an aluminum suction pipe, the side of the sealing cover plate is threadedly connected with a plurality of fastening screws, and the bottom of the fastening screw is threadedly connected to the upper end of the ladle.

[0015] The utility model has the following effects:

[0016] 1. The spiral flow guide plate with a plurality of gas outlets is arranged in the inner lining body, and the spiral flow guide plate is in communication with the air inlet channel and the heat-resistant gas injection pipe inside, when working, the external air pump injects gas into the cavity of the spiral flow guide plate through the heat-resistant gas injection pipe and the air inlet channel, the gas is sprayed out of the gas outlet to push the aluminum liquid to flow, the spiral flow guide plate guides the aluminum liquid to move in a spiral shape, forms a spiral flow field, the spiral flow field and the flow field generated by the gas injection are superimposed on each other, the axial and radial flow of the aluminum liquid is strengthened, the stirring dead angle is effectively reduced, the aluminum liquid is more fully circulated in the ladle, the stirring is more uniform, the aluminum liquid temperature distribution is optimized, the aluminum liquid surface is prevented from solidifying, and the aluminum liquid quality is improved.

[0017] 2, by in the package wall fill explosion-proof fiber felt and aerogel felt filler, aerogel felt filler by virtue of nano porous structure, has very low thermal conductivity, good flexibility and processability, can efficiently block heat transfer, reduce energy loss, prolong the life of the package, explosion-proof fiber felt is made of special fiber by special weaving, stable structure at high temperature, can withstand pressure impact, stop flame spread, both work together, not only guarantee the stable operation of aluminum ladle in high temperature environment, but also greatly enhance the safety, reduce the risk of accidents, protect the safety of personnel and equipment. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the front view structure schematic diagram of the utility model;

[0019] Figure 2 It is the overall plan view structure schematic diagram of the utility model;

[0020] Figure 3 It is the utility model Figure 2 It is the utility model

[0021] Figure 4 It is the utility model

[0022] In the drawing: 1, package; 2, aluminum outlet pipe; 3, sealing cover plate; 4, aluminum suction pipe; 5, pressure release valve; 6, fastening screw; 7, inner liner; 8, aerogel felt filler; 9, explosion-proof fiber felt; 10, spiral guide plate; 11, air outlet hole; 12, air inlet channel; 13, ceramic fiber heat insulation layer; 14, heat-resistant gas injection pipe. DETAILED DESCRIPTION

[0023] The technical scheme in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0024] Please refer to Figure 1The application discloses an aluminum ladle lining structure, which comprises a ladle body 1, an inner lining body 7 arranged in the ladle body 1, and a sealing cover plate 3 arranged at the top of the ladle body 1, wherein the top of the sealing cover plate 3 is fixedly connected with a pressure release valve 5, the pressure release valve 5 is arranged at the top of the sealing cover plate 3, and the inside of the pressure release valve 5 is provided with a pressure sensing element; when the internal pressure of the ladle body 1 changes due to chemical reaction of aluminum liquid, temperature change or other reasons during the working process of the aluminum ladle, the pressure sensing element can sense the pressure value in real time; once the pressure value exceeds a preset threshold value, the mechanical structure in the pressure release valve 5 can be automatically opened under the action of pressure, so that the gas or steam in the ladle body 1 can be discharged, thereby reducing the internal pressure of the ladle body 1; and when the pressure decreases to a safe range.

[0025] Please refer to Figures 1-4 The inner wall of the inner lining body 7 is fixedly connected with a spiral flow guide plate 10, the inside of the spiral flow guide plate 10 is a cavity structure, and a plurality of gas outlet holes 11 are uniformly arranged in the inner side of the spiral flow guide plate 10; the upper end of the inner lining body 7 is provided with an air inlet channel 12, the inner side of one end of the air inlet channel 12 is in communication with the inside of the spiral flow guide plate 10, the outer side of the air inlet channel 12 extends to the outside of the ladle body 1, and the outside of the air inlet channel 12 is provided with a ceramic fiber heat insulation layer 13, so that the air inlet channel 12 and external equipment connected with the air inlet channel 12 are prevented from being deformed and damaged due to high temperature, the service life of the air inlet channel 12, a heat-resistant gas injection pipe 14 and related equipment such as an external air pump is prolonged, and the equipment maintenance cost and replacement frequency are reduced.

[0026] The outer surface of the ladle body 1 is connected with the heat-resistant gas injection pipe 14, the installation position of the heat-resistant gas injection pipe 14 on the ladle body 1 is in communication with the air inlet channel 12, the spiral flow guide plate 10 with a plurality of gas outlet holes 11 is arranged in the inner lining body 7, the inside of the spiral flow guide plate 10 is in communication with the air inlet channel 12 and the heat-resistant gas injection pipe 14, the external air pump injects gas into the cavity of the spiral flow guide plate 10 through the heat-resistant gas injection pipe 14 and the air inlet channel 12, the gas is sprayed out from the gas outlet holes 11 to push the aluminum liquid to flow, the spiral flow guide plate 10 guides the aluminum liquid to move in a spiral shape, a spiral flow field is formed, the spiral flow field and a flow field generated by gas injection are superimposed on each other, the axial and radial flow of the aluminum liquid is strengthened, the stirring dead angle is effectively reduced, the aluminum liquid circulation in the ladle is more sufficient, the stirring is more uniform, the aluminum liquid temperature distribution is optimized, the aluminum liquid surface is prevented from solidifying, and the aluminum liquid quality is improved.

[0027] Please refer to Figure 2, the heat-resistant gas injection pipe 14 is connected with an external air pump, the inner wall of the package body 1 is filled with the explosion-proof fiber felt 9, the inner wall of the explosion-proof fiber felt 9 is filled with the aerogel felt filling 8, the outer wall of the inner lining body 7 is attached to the inner wall of the aerogel felt filling 8, by filling the explosion-proof fiber felt 9 and the aerogel felt filling 8 in the inner wall of the package body 1, the aerogel felt filling 8 has extremely low thermal conductivity, good flexibility and processability due to the nano-porous structure, can efficiently block heat transfer, reduce energy loss, prolong the service life of the package body 1, the explosion-proof fiber felt 9 is made of special fibers and is woven in a special way, has stable structure at high temperature, can withstand pressure impact and prevent flame spread, the two work together to ensure stable operation of the aluminum ladle in a high-temperature environment, greatly enhance safety, reduce accident risk and protect personnel and equipment safety.

[0028] Please refer to Figure 1 The pressure release valve 5 monitors the pressure value of the package body 1 in real time and automatically opens when the set threshold is exceeded, the bottom of the inner lining body 7 is fixedly connected with the aluminum outlet pipe 2, the outer side of the aluminum outlet pipe 2 extends to the outside of the package body 1, the upper end of the sealing cover plate 3 is fixedly connected with the aluminum suction pipe 4, the side of the sealing cover plate 3 is threadedly connected with a plurality of fastening screws 6, the bottom of the fastening screw 6 is threadedly connected to the upper end of the package body 1, during use of the aluminum ladle, rotating the fastening screw 6 can tightly fix the sealing cover plate 3 on the package body 1, enhance the sealing between the sealing cover plate 3 and the package body 1, prevent leakage of the aluminum liquid during stirring and transportation, and at the same time avoid the entry of hot gas and impurities into the inside of the package body 1, affecting the quality of the aluminum liquid.

[0029] Working principle: in specific use, first move the aluminum ladle to a suitable position, and then use the aluminum suction pipe 4 to suck the high-temperature liquid aluminum into the inner lining body 7 inside the package body 1, during transportation, open the external air pump, the gas enters the cavity of the spiral flow guide plate 10 through the heat-resistant gas injection pipe 14 and the gas inlet channel 12, and then is sprayed out from the gas outlet hole 11 to push the aluminum liquid to flow, the spiral flow guide plate 10 guides the aluminum liquid to make spiral motion to make the aluminum liquid stir uniformly and optimize temperature distribution, in this process, the aerogel felt filling 8 plays a heat-insulating role to reduce heat loss, and the explosion-proof fiber felt 9 ensures safety, when the aluminum liquid is transported to the designated working site, the aluminum outlet pipe 2 fixedly connected to the bottom of the inner lining body 7 is opened, and the aluminum liquid will flow out of the package body 1 through the aluminum outlet pipe 2, completing the transportation and processing of the aluminum liquid.

Claims

1. A lining structure for an aluminium ladle, comprising a ladle body (1), characterised in that: The inner part of the package body (1) is provided with an inner lining body (7), the top of the package body (1) is provided with a sealing cover plate (3), the top of the sealing cover plate (3) is fixedly connected with a pressure release valve (5), the inner wall of the inner lining body (7) is fixedly connected with a spiral flow guide plate (10), the inside of the spiral flow guide plate (10) is a cavity structure and a plurality of air outlet holes (11) are uniformly arranged on the inner side of the spiral flow guide plate (10), the upper end of the inner lining body (7) is provided with an air inlet channel (12), one end of the inner side of the air inlet channel (12) is communicated with the inside of the spiral flow guide plate (10), the outer side of the air inlet channel extends through to the outside of the package body (1), the outside of the air inlet channel (12) is provided with a ceramic fiber heat insulation layer (13), the outer surface of the upper end of the package body (1) is connected with a heat-resistant gas injection pipe (14), and the installation position of the heat-resistant gas injection pipe (14) on the package body (1) is communicated with the air inlet channel (12).

2. A lining structure for an aluminum ladle according to claim 1, characterized in that: The heat-resistant gas injection pipe (14) is connected with an external air pump, and the inner wall of the package body (1) is filled with an explosion-proof fiber felt (9).

3. A lining structure for an aluminium ladle as claimed in claim 2, characterised in that: The inner wall of the explosion-proof fiber felt (9) is filled with aerogel felt filling (8), and the outer wall of the inner lining body (7) is attached to the inner side of the aerogel felt filling (8).

4. A lining structure for an aluminum ladle as defined in claim 1, wherein: The pressure release valve (5) monitors the pressure value of the package body (1) in real time, and automatically opens when the set threshold is exceeded.

5. A lining structure for an aluminum ladle as defined in claim 1, wherein: The bottom of the inner lining body (7) is fixedly connected with an aluminum outlet pipe (2), and the outer side of the aluminum outlet pipe (2) extends through to the outside of the package body (1).

6. A lining structure for an aluminum ladle as defined in claim 1, wherein: The upper end of the sealing cover plate (3) is fixedly connected with an aluminum suction pipe (4), the side of the sealing cover plate (3) is threadedly connected with a plurality of fastening screws (6), and the bottom of the fastening screw (6) is threadedly connected to the upper end of the package body (1).

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