Slag tank spraying device in slag treatment operation area

Abstract

The utility model discloses a slag ladle spraying device in a slag treatment operation area, which belongs to the technical field of metallurgy and comprises a spraying frame, and a spraying station for spraying a slag ladle is formed in the spraying frame. A spraying assembly used for spraying the inner wall of the slag ladle is arranged in the spraying frame relative to the spraying station, and the spraying assembly is communicated with a single-bin pump containing spraying materials through a connecting hose; a lifting mechanism used for driving the spraying assembly to vertically ascend and descend is arranged on the spraying frame, the lifting mechanism comprises a winch arranged on a side column of the spraying frame, a first fixed pulley is arranged on a top frame of the spraying frame, and a steel wire rope of the winch is wound around the first fixed pulley to be connected with the spraying assembly. According to the utility model, the opportunities of manual operation and direct contact of workers with dust can be reduced, the automation degree and the working efficiency of spraying operation are improved, and the potential threat to the health of the operators is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of metallurgy, and particularly relates to a slag ladle spraying device in a slag treatment operation area. Background Art

[0002] The steel slag produced by converter steelmaking is generally transported to the slag yard by slag ladles for subsequent treatment. During the tipping process, steel slag may stick to the ladle. After treatment, the steel slag still cannot be separated from the ladle, and the ladle becomes a dead ladle and can only be scrapped. The occurrence of sticking ladles and dead ladles will not only cause economic losses and increase the steelmaking cost, but may also cause a tight turnover of slag ladles and affect production seriously in severe cases. Usually, waste slag is padded at the bottom of the slag ladle, which can relieve the phenomenon of steel slag sticking to the ladle, but the padded waste slag will rise with the hot air flow during tipping, forming a black-brown "mushroom cloud" and seriously polluting the environment.

[0003] By adopting the slag ladle spraying technology, the sticking of steel slag to the ladle can be reduced and the one-time ladle discharging rate can be improved without padding slag. The main principle of the slag ladle spraying technology is to form a high-temperature resistant coating layer on the inner wall of the slag ladle to isolate the molten steel and steel slag residues from corroding the slag ladle, so as to reduce or avoid the sticking of steel slag to the ladle, thus the slag ladle padding measure can be cancelled, and the environmental pollution caused by padding slag can be effectively eliminated.

[0004] Currently, the widely adopted slag ladle spraying method mainly relies on manual operation. When carefully spraying the protective slag on the inner wall of the slag ladle in this traditional way, not only is the operation efficiency low, but also the spraying effect is difficult to ensure consistency. During the manual spraying process, due to uncontrollable variables such as operation techniques, physical conditions and environmental factors, the thickness of the sprayed coating is uneven, and there are even missed areas, which cannot give full play to the isolation and protection function of the coating.

[0005] In addition, when engaged in such work for a long time, the operators will inevitably be exposed to a large amount of dust environment. These dust substances not only affect the cleanliness of the working environment, but more importantly, they can enter the human body through the respiratory tract, and long-term accumulation may cause irreversible damage to the respiratory system of workers and seriously affect their physical health. Summary of the Invention

[0006] Aiming at the problems existing in the prior art, the utility model provides a slag ladle spraying device in a slag treatment operation area, which can reduce the manual operation and the chance of direct contact of personnel with dust, improve the automation degree and working efficiency of the spraying operation, and reduce the potential threat to the health of operators.

[0007] The utility model is realized as follows. A slag ladle spraying device in a slag treatment operation area includes a spraying frame, and a spraying station for spraying operation on the slag ladle is formed inside the spraying frame.

[0008] Inside the spraying frame relative to the spraying station, a spraying assembly for spraying the inner wall of the slag pot is provided, and the spraying assembly is connected to a single bin pump containing spraying material through a connecting hose;

[0009] On the spraying frame, a lifting mechanism for driving the spraying assembly to lift vertically is provided. The lifting mechanism includes a winch arranged on the side column of the spraying frame. A first fixed pulley is arranged on the top frame of the spraying frame, and the steel wire rope of the winch bypasses the first fixed pulley and is connected to the spraying assembly.

[0010] Furthermore, the spraying assembly includes an annular tube body. The connecting hose is connected to the annular tube body, and nozzles connected to the annular tube body are arranged on the annular tube body. The combination of the annular tube body and the nozzles can ensure that the spraying material can evenly and comprehensively cover the inner wall of the slag pot, avoiding problems such as uneven thickness and missed areas that may occur in traditional manual spraying, and improving the spraying quality; Since the annular tube body is connected to the connecting hose, the spraying material can be continuously and stably transported to the nozzles, ensuring the continuity and high efficiency of the spraying operation. The combined design of the annular tube body and the nozzles enables the spraying material to be accurately sprayed onto the inner wall of the slag pot, reducing material waste and splashing. At the same time, the layout of the annular tube body enables the nozzles to easily reach all corners of the inner wall of the slag pot, effectively reducing spraying dead angles and ensuring comprehensive spraying of the inner wall of the slag pot.

[0011] Furthermore, four second fixed pulleys are arranged on the top frame of the spraying frame. The four second fixed pulleys are sequentially distributed circumferentially relative to the annular tube body on the top frame of the spraying frame;

[0012] A rope gathering member is arranged at the end of the steel wire rope of the winch. A rope gathering hole is arranged on the rope gathering member facing the end of the steel wire rope of the winch. Four rope dividing holes are arranged on the rope gathering member facing the side of the second fixed pulley. A turnbuckle is arranged on each rope dividing hole, and a traction rope is arranged on the rod of each turnbuckle. Each traction rope bypasses the corresponding fixed pulley and is connected to the annular tube body. This structure provides four stable suspension points for the annular tube body, helping to maintain the stability and balance of the annular tube body during the lifting process, reducing the shaking or deviation that may be caused by single-point suspension, and ensuring the smooth progress of the spraying operation. At the same time, multi-point suspension helps to evenly distribute the weight of the annular tube body to the four suspension points, reducing the load pressure on a single suspension point and improving the bearing capacity and safety of the overall structure.

[0013] The turnbuckle enables the length of the traction rope to be conveniently adjusted, thereby realizing fine adjustment of the levelness of the annular tube body. It not only improves the convenience of operation but also helps to make real-time adjustments according to needs during the spraying process.

[0014] Further, a plurality of the spray nozzles are provided, and the plurality of spray nozzles are equidistantly distributed along the circumferential direction of the annular pipe body.

[0015] Further, the spraying direction of the spray nozzle faces the outside of the annular pipe body.

[0016] Further, a pneumatic quick-opening valve is provided on the connecting hose. The pneumatic quick-opening valve uses compressed air as the power source and has the characteristics of fast response speed and sensitive action. During the spraying operation, it can be quickly opened to allow the spraying material to pass through, and can be quickly closed after the spraying is completed, thus shortening the operation cycle and improving the overall operation efficiency. It can be remotely controlled, and the operator can control the opening and closing of the valve by controlling the pressure of the compressed air without directly contacting the spraying equipment and materials. This design increases the flexibility of the operation and enables the operator to more conveniently control the spraying process. In case of an emergency, the pneumatic quick-opening valve can quickly cut off the supply of the spraying material to prevent safety accidents caused by material leakage or spraying equipment failure. This design helps to ensure the personal safety of the operator and the safe progress of the spraying operation.

[0017] The advantages and technical effects of the present utility model are as follows: Due to the adoption of the above technical solution, the opportunity of manual operation and direct contact of personnel with dust is reduced, the automation degree and working efficiency of the spraying operation are improved, and the potential threat to the health of the operator is reduced. It not only ensures the continuity and stability of the spraying process, but also guarantees the uniformity and comprehensiveness of the spraying, and effectively isolates the corrosion of the residual molten steel and steel slag on the slag pot.

[0018] Through the lifting mechanism arranged on the spraying frame, the vertical lifting of the spraying component can be accurately controlled, and the accurate control of the lifting mechanism enables the spraying component to accurately reach every corner of the inner wall of the slag pot. Description of the Drawings

[0019] Figure 1 is the overall structural schematic diagram provided by the embodiment of the present utility model;

[0020] Figure 2 is the connection structural schematic diagram of the rope collecting member provided by the embodiment of the present utility model.

[0021] In the figure: 1, spraying frame; 2, spraying component; 2-1, annular pipe body; 2-2, spray nozzle; 3, single-chamber pump; 4, connecting hose; 5, lifting mechanism; 5-1, winch; 5-2, first fixed pulley; 6, pneumatic quick-opening valve; 7, second fixed pulley; 8, rope collecting member; 8-1, rope collecting hole; 8-2, rope dividing hole; 9, turnbuckle; 10, towing rope. Detailed Embodiments

[0022] In order to make the objectives, technical solutions and advantages of the present utility model more clear and understandable, the following further details the present utility model in conjunction with embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0023] It should be noted that the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "top", "bottom", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0024] As Figure 1 and Figure 2 shown, the present application provides a slag pot spraying device for a slag treatment operation area, including a spraying frame 1, and a spraying station for spraying the slag pot is formed inside the spraying frame 1;

[0025] Inside the spraying frame 1 relative to the spraying station, a spraying component 2 for spraying the inner wall of the slag pot is provided. The spraying component 2 is connected to a single-chamber pump 3 containing spraying material through a connecting hose 4;

[0026] A lifting mechanism 5 for driving the spraying component 2 to lift vertically is provided on the spraying frame 1. The lifting mechanism 5 includes a winch 5-1 arranged on the side columns of the spraying frame 1, and a first fixed pulley 5-2 is arranged on the top frame of the spraying frame 1. The steel wire rope of the winch 5-1 bypasses the first fixed pulley 5-2 and is connected to the spraying component 2.

[0027] Further, the spraying component 2 includes an annular tube body 2-1. The connecting hose 4 is connected to the annular tube body 2-1, and spray nozzles 2-2 connected to the annular tube body 2-1 are arranged on the annular tube body 2-1. Preferably, a plurality of the spray nozzles 2-2 are provided, and the plurality of spray nozzles 2-2 are equidistantly distributed along the circumferential direction of the annular tube body 2-1. The spraying direction of the spray nozzles 2-2 faces the outside of the annular tube body 2-1. The combination of the annular tube body 2-1 and the spray nozzles 2-2 can ensure that the spraying material can uniformly and comprehensively cover the inner wall of the slag pot, avoiding problems such as uneven thickness and missed areas that may occur in traditional manual spraying, and improving the spraying quality; since the annular tube body 2-1 is connected to the connecting hose 4, the spraying material can be continuously and stably transported to the spray nozzles 2-2, ensuring the continuity and high efficiency of the spraying operation. The combined design of the annular tube body 2-1 and the spray nozzles 2-2 enables the spraying material to be accurately sprayed onto the inner wall of the slag pot, reducing material waste and splashing. At the same time, the layout of the annular tube body 2-1 enables the spray nozzles 2-2 to easily reach all corners of the inner wall of the slag pot, effectively reducing spraying dead corners and ensuring comprehensive spraying of the inner wall of the slag pot.

[0028] Further, four sets of second fixed pulleys 7 are provided on the top frame of the spraying frame 1, and the four sets of second fixed pulleys 7 are sequentially distributed on the top frame of the spraying frame 1 in the circumferential direction of the annular pipe body 2-1.

[0029] A rope collecting member 8 is provided at the end of the steel wire rope of the winch 5-1. A rope collecting hole 8-2 is provided on the rope collecting member 8 facing the end of the steel wire rope of the winch 5-1. Four rope dividing holes 8-2 are provided on the rope collecting member 8 facing the side of the second fixed pulley 7. A turnbuckle 9 is provided on each rope dividing hole 8-2. A traction rope 10 is provided on the pull rod of each turnbuckle 9. Each traction rope 10 is respectively wound around the corresponding fixed pulley and connected to the annular pipe body 2-1. This structure provides four stable suspension points for the annular pipe body 2-1, which helps to maintain the stability and balance of the annular pipe body 2-1 during the lifting process, reduces the shaking or skew that may be caused by single-point suspension, and ensures the smooth progress of the spraying operation. At the same time, multi-point suspension helps to evenly distribute the weight of the annular pipe body 2-1 to the four suspension points, reduces the load pressure on a single suspension point, and improves the bearing capacity and safety of the overall structure.

[0030] The turnbuckle 9 enables the length of the traction rope 10 to be conveniently adjusted, so as to realize the fine adjustment of the levelness of the annular pipe body 2-1. This not only improves the operation convenience, but also helps to make real-time adjustment according to needs during the spraying process.

[0031] Further, a pneumatic quick-opening valve 6 is provided on the connecting hose 4. The pneumatic quick-opening valve 6 uses compressed air as the power source and has the characteristics of fast response speed and sensitive action. During the spraying operation, it can be quickly opened to allow the spraying material to pass through, and can be quickly closed after the spraying is completed, thus shortening the operation cycle and improving the overall operation efficiency. It can be remotely controlled. The operator can control the opening and closing of the valve by controlling the pressure of the compressed air without directly contacting the spraying equipment and materials. This design increases the flexibility of the operation and enables the operator to more conveniently control the spraying process. In case of emergency, the pneumatic quick-opening valve 6 can quickly cut off the supply of the spraying material to prevent safety accidents caused by material leakage or spraying equipment failure. This design helps to ensure the personal safety of the operator and the safe progress of the spraying operation.

[0032] Working process: Personnel load the spraying material into the mud mixer through the mixer platform for material mixing. After the mixing is completed, the internal and external pressures are balanced by air pressure, and then the material flows into the single-chamber pump 3 by self-flow. After closing the feed valve, the air pressure is increased to 0.2 Mpa. At this time, the pneumatic quick-opening valve 6 is in the closed state.

[0033] When the infrared shielding signals at the head and tail of the vehicle enter the spraying frame 1, the hoist 5-1 starts to execute the descending action of the spraying component 2. After reaching the predetermined height, the hoist stops, and the limit switch gives a switch signal to turn on the time relay. The normally open contact of the time relay closes to energize the pneumatic quick-opening valve 6 and execute the solenoid valve, and the spraying starts for 3-5 seconds. After the spraying is completed, the normally closed point of the time relay resets and the hoist executes the ascending action of the spraying component 2. When the lower limit is disengaged and the ascending limit contact is closed, a signal indicator light is given to prompt the driver that they can drive, and the device returns to the initial state to wait for the next operation.

[0034] Due to the adoption of the above technical solution, the opportunity of manual operation and direct contact of personnel with dust is reduced, the automation degree and work efficiency of the spraying operation are improved, and the potential threat to the health of operators is reduced. It not only ensures the continuity and stability of the spraying process, but also guarantees the uniformity and comprehensiveness of the spraying, and effectively isolates the corrosion of the residual molten steel and steel slag on the slag pot.

[0035] Through the lifting mechanism 5 provided on the spraying frame 1, the vertical lifting of the spraying component 2 can be accurately controlled. The precise control of the lifting mechanism 5 enables the spraying component 2 to accurately reach every corner of the inner wall of the slag pot.

[0036] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A slag ladle spraying device in a slag treatment operation area, characterized in that, It includes a spraying frame, and a spraying station for spraying the slag pot is formed inside the spraying frame; Inside the spraying frame relative to the spraying station, a spraying component for spraying the inner wall of the slag pot is provided, and the spraying component is communicated with a single-chamber pump containing spraying material through a connecting hose; On the spraying frame, a lifting mechanism for driving the spraying component to lift vertically is provided. The lifting mechanism includes a winch arranged on the side column of the spraying frame. A first fixed pulley is arranged on the top frame of the spraying frame, and the steel wire rope of the winch bypasses the first fixed pulley and is connected to the spraying component.

2. The slag ladle spraying device in the slag treatment operation area according to claim 1, characterized in that, The spraying component includes an annular pipe body, the connecting hose is communicated with the annular pipe body, and spray heads communicated with the annular pipe body are arranged on the annular pipe body.

3. The slag ladle spraying device in the slag treatment operation area according to claim 2, wherein, Four groups of second fixed pulleys are arranged on the top frame of the spraying frame. The four groups of second fixed pulleys are sequentially distributed on the top frame of the spraying frame in the circumferential direction relative to the annular pipe body; A rope collecting member is arranged at the end of the steel wire rope of the winch. A rope collecting hole is arranged on the rope collecting member facing the end of the steel wire rope of the winch. Four rope dividing holes are arranged on the rope collecting member facing the side of the second fixed pulley. A turnbuckle is arranged on each rope dividing hole. A traction rope is arranged on the pull rod of each turnbuckle, and each traction rope bypasses the corresponding fixed pulley and is connected to the annular pipe body respectively.

4. The slag ladle spraying device in the slag treatment operation area according to claim 2, characterized in that, A plurality of spray heads are arranged, and the plurality of spray heads are equidistantly distributed along the circumferential direction of the annular pipe body.

5. The slag ladle spraying device in the slag treatment operation area according to claim 2, wherein, The spraying direction of the spray head faces the outside of the annular pipe body.

6. The slag ladle spraying device in the slag treatment operation area according to claim 1, wherein, A pneumatic quick-opening valve is arranged on the connecting hose.

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