Slag ladle device for collecting cold steel in RH vacuum tank

Abstract

The utility model relates to a slag ladle device for collecting cold steel in an RH vacuum tank, and belongs to the field of metallurgical equipment. Comprising a tank body (1), trunnions (3), trunnion seats (2), trunnion supporting mechanisms, trunnion supports (6) and a lifting hook mechanism (7), the tank body (1) is a metal tank-shaped structural body, the two trunnions (3) are symmetrically fixed to the upper portion of the outer side wall of the tank body (1) respectively, the trunnions (3) are embedded and fixed in the trunnion seats (2), and the upper end faces of the two trunnion supports (4) are fixedly connected with the lower end faces of the two trunnion seats (2) respectively. The device disclosed by the utility model is simple in structure, convenient to operate and large in tank body volume, can be used for containing more cold steel, better meets the use requirements of collecting the cold steel in RH refining, and can be used for quickly dumping the tank body and improving the working efficiency through the arranged lifting hook mechanism. The device is simple in manufacturing mode and low in cost and has popularization value.

Description

Technical Field

[0001] The utility model relates to a slag pot device for collecting cold steel in an RH vacuum tank, belonging to the field of metallurgical equipment. Background Art

[0002] RH vacuum refining, a specialized refining technology, has been widely used in steel production. Its key equipment includes vacuum tanks, top lances, ladle cars, vacuum tank trolleys, elevated silos, and vacuum silos. Chemical reactions within the vacuum tank during vacuum refining are intense, particularly the carbon-oxygen reaction in the molten steel. This can cause splashing to heights exceeding 10 meters, easily causing steel to adhere to the tank walls. Typically, oxygen is blown into the hot vacuum tank at ambient temperature and pressure to remove the cold steel from the tank. During RH refining, a slag basin is typically used to collect the cold steel. However, the shallow depth of the slag basin can easily cause cold steel to splash out and adhere to the ladle car, making it difficult to clean. Furthermore, the slag basin's small volume allows for a relatively small amount of cold steel to be stored at any one time, making it prone to overflow and difficult to clean, posing a safety hazard. The slag basin also lacks a hook for dumping, making it difficult to empty. Therefore, a slag basin system for collecting cold steel in RH vacuum tanks is needed. This system has a large capacity, can accommodate a large amount of cold steel, and is easily hoisted and dumped. Utility Model Content

[0003] The utility model aims to provide a slag pot device for collecting cold steel in an RH vacuum tank. The pot body has a large volume, can hold more cold steel, is convenient for lifting and dumping, is easy to operate and safe to use.

[0004] The technical solution of the utility model is: a slag pot device for collecting cold steel in an RH vacuum tank, comprising a tank body, a trunnion, a trunnion seat, a trunnion support mechanism, a trunnion support, and a hook mechanism, the tank body being a metal tank-shaped structure with an open upper end face and an inner cavity being an arc surface, the two trunnions being axial metal bodies symmetrically fixed to the upper part of the outer wall of the tank body, the trunnion seat being a metal structure, one side of which is fixedly connected to the outer wall of the tank body, the trunnion being embedded and fixed in the trunnion seat, the trunnion support being four columnar metal bodies, the upper end of which is fixedly connected to the outer wall of the bottom of the tank body, the trunnion support mechanism comprising a trunnion support and a fixing frame, the trunnion support being a steel structure, a welded steel structure composed of an upper and lower steel plates as support surfaces, and the remaining four steel plates as vertical supports, a supporting steel plate fixedly connected between the steel plates of the vertical supports, the upper end faces of the two trunnion supports being fixedly connected to the lower end faces of the two trunnion seats respectively, the fixing frame being four steel plates, which respectively fix the two trunnion supports to the four trunnion supports. The hook mechanism is a steel plate structure, including a hook hanging rod, a pull rod I, a pull rod II, and a fixed rod. The pull rod I and the pull rod II are two steel plates respectively, and the connecting parts of the pull rod I and the pull rod II are fixedly connected by a pin. The hook hanging rod is a metal shaft, which is matched and assembled with the two steel plates of the pull rod I in a pin manner. The fixed rod is a T-shaped metal rod, one end of which is fixedly connected to the outer wall of the tank body, and the other end is matched and assembled with the middle part of the two steel plates of the matched pull rod I in a pin manner. The other end of the pull rod II is fixedly connected to the bottom of the tank body.

[0005] As described above, the slag pot device for collecting cold steel in the RH vacuum tank has a side structure of a truncated cone with a larger upper portion and a smaller lower portion, and a bottom structure of a spherical segment. The contact portion between the inner surface of the side and bottom of the pot body is an arc transition.

[0006] As described above, in the slag pot device for collecting cold steel in the RH vacuum tank, the ear shaft is equipped with an annular retaining ring, and the retaining ring is a metal structure.

[0007] As described above, the slag pot device for collecting cold steel in the RH vacuum tank, the pot body, trunnion trunnion seat, trunnion support and retaining ring are integrally cast by casting and are made of cast steel.

[0008] As described above, the slag pot device for collecting cold steel in an RH vacuum tank, the pot body, trunnion, trunnion seat and trunnion support are manufactured by welding steel structures.

[0009] The beneficial effects of the present invention are as follows: the present invention has a simple structure, is easy to operate, has a large tank volume, can hold a large amount of cold steel, and better meets the requirements of RH refining and collecting cold steel. The provided hook mechanism can quickly realize the dumping of the tank, thereby improving work efficiency. The present invention is simple to manufacture, low in cost, and has promotional value. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic diagram of the device of the utility model;

[0011] Figure 2 This is the front view of the device of the utility model;

[0012] Figure 3 This is a side view of the device of the utility model;

[0013] Figure 4 This is a top view of the device of the utility model;

[0014] Figure 5 This is a partial enlarged schematic diagram of the trunnion seat, trunnion, trunnion bracket, and fixing bracket of the device of the utility model;

[0015] Markings in the figure: tank body 1, trunnion seat 2, trunnion 3, trunnion bracket 4, fixing frame 5, trunnion support 6, hook mechanism 7, fixing plate 8, hook hanging rod 9, pull rod I 10, pull rod II 11, fixing rod 12, retaining ring 13. DETAILED DESCRIPTION

[0016] The present invention will be further described below with reference to the accompanying drawings and examples. Example

[0017] Referring to the accompanying drawings, a slag pot device for collecting cold steel in an RH vacuum tank includes a pot body 1, a trunnion 3, a trunnion seat 2, a trunnion support mechanism, a trunnion support 6, and a hook mechanism 7. The pot body 1 is a metal pot-shaped structure with an open upper end and an arc-shaped inner cavity. The two ear shafts 3 are axial metal bodies, which are symmetrically fixed on the upper part of the outer side wall of the tank body 1. The ear shaft seat 2 is a metal structure, one side of which is fixedly connected to the outer wall of the tank body 1, and the ear shaft 3 is embedded and fixed in the ear shaft seat 2. The ear shaft support 6 is four columnar metal bodies, the upper end of which is fixedly connected to the outer wall of the bottom of the tank body 1. The ear shaft support mechanism includes an ear shaft bracket 4 and a fixing frame 5. The ear shaft bracket 4 is a steel structure, which is a welded steel structure with two upper and lower steel plates as support surfaces and the remaining four steel plates as vertical supports. Support steel plates are fixedly connected between the steel plates of the vertical supports. The upper end surfaces of the two ear shaft brackets 4 are respectively fixedly connected to the lower end surfaces of the two ear shaft seats 2. The fixing frame 5 is four steel plates, which fix the two ear shaft brackets 4 to the four ear shaft supports 6 respectively. The hook mechanism 7 is a steel plate structure, including a hook hanging rod 9, a pull rod I 10, a pull rod II 11, and a fixed rod 12. The pull rods I 10 and II 11 are respectively two steel plates, and the connection between the pull rods I 10 and II 11 is fixedly connected by a pin. The hook hanging rod 9 is a metal shaft, which is matched and assembled with the two steel plates of the pull rod I 10 in a pin manner. The fixed rod 12 is a T-shaped metal rod, one end of which is fixedly connected to the outer wall of the tank body 1, and the other end is matched and assembled with the middle part of the two steel plates of the pull rod I 10 in a pin manner. The other end of the pull rod II 11 is fixedly connected to the bottom of the tank body 1. The side structure of the tank body 1 is a truncated cone structure with a larger upper part and a smaller lower part, and the bottom surface is a spherical segment structure. The contact part between the inner surface of the side and bottom of the tank body 1 is a circular arc transition. The ear shaft 3 is equipped with an annular retaining ring 13, which is a metal structure. The tank body 1, the trunnion 3, the trunnion seat 2, the trunnion support 6 and the retaining ring 13 are integrally cast by a casting method and are made of cast steel.

[0018] During use, the device is hoisted to the designated location for cold steel collection in the RH vacuum tank by hooking the lug 3 with the hoist. After collection, the device is hoisted to the dumping location by hooking the lug 3 with the hoist. The crane hook is then lifted on the hook rod 9 to dump the tank 1 and complete the unloading of the cold steel.

[0019] The utility model has a simple structure, is easy to operate, and has a large tank volume. It can hold a large amount of cold steel and better meet the requirements of RH refining and collecting cold steel. The hook mechanism can quickly dump the tank, thereby improving work efficiency. The device is simple to manufacture, low in cost, and has promotional value. Example

[0020] Referring to the accompanying drawings, a slag pot device for collecting cold steel in an RH vacuum tank includes a pot body 1, a trunnion 3, a trunnion seat 2, a trunnion support mechanism, a trunnion support 6, and a hook mechanism 7. The pot body 1 is a metal pot-shaped structure with an open upper end and an arc-shaped inner cavity. The two ear shafts 3 are axial metal bodies, which are symmetrically fixed on the upper part of the outer side wall of the tank body 1. The ear shaft seat 2 is a metal structure, one side of which is fixedly connected to the outer wall of the tank body 1, and the ear shaft 3 is embedded and fixed in the ear shaft seat 2. The ear shaft support 6 is four columnar metal bodies, the upper end of which is fixedly connected to the outer wall of the bottom of the tank body 1. The ear shaft support mechanism includes an ear shaft bracket 4 and a fixing frame 5. The ear shaft bracket 4 is a steel structure, which is a welded steel structure with two upper and lower steel plates as support surfaces and the remaining four steel plates as vertical supports. Support steel plates are fixedly connected between the steel plates of the vertical supports. The upper end surfaces of the two ear shaft brackets 4 are respectively fixedly connected to the lower end surfaces of the two ear shaft seats 2. The fixing frame 5 is four steel plates, which fix the two ear shaft brackets 4 to the four ear shaft supports 6 respectively. The hook mechanism 7 is a steel plate structure, including a hook hanging rod 9, a pull rod I 10, a pull rod II 11, and a fixed rod 12. The pull rods I 10 and II 11 are respectively two steel plates, and the connection between the pull rods I 10 and II 11 is fixedly connected by a pin. The hook hanging rod 9 is a metal shaft, which is matched and assembled with the two steel plates of the pull rod I 10 in a pin manner. The fixed rod 12 is a T-shaped metal rod, one end of which is fixedly connected to the outer wall of the tank body 1, and the other end is matched and assembled with the middle part of the two steel plates of the pull rod I 10 in a pin manner. The other end of the pull rod II 11 is fixedly connected to the bottom of the tank body 1. The side structure of the tank body 1 is a truncated cone structure with a larger upper part and a smaller lower part, and the bottom surface is a spherical segment structure. The contact part between the inner surface of the side and bottom of the tank body 1 is a circular arc transition. The ear shaft 3 is equipped with an annular retaining ring 13, which is a metal structure. The tank body 1, trunnion 3, trunnion seat 2 and trunnion support 6 are manufactured by welding steel structures.

[0021] During use, the device is hoisted to the designated location for cold steel collection in the RH vacuum tank by hooking the lug 3 with the hoist. After collection, the device is hoisted to the dumping location by hooking the lug 3 with the hoist. The crane hook is then lifted on the hook rod 9 to dump the tank 1 and complete the unloading of the cold steel.

[0022] The utility model has a simple structure, is easy to operate, and has a large tank volume. It can hold a large amount of cold steel and better meet the requirements of RH refining and collecting cold steel. The hook mechanism can quickly dump the tank, thereby improving work efficiency. The device is simple to manufacture, low in cost, and has promotional value.

Claims

1. A slag pot device for collecting cold steel in a RH vacuum tank, characterized in that The invention comprises a tank body (1), a trunnion (3), a trunnion seat (2), a trunnion support mechanism, a trunnion support seat (6), and a hook mechanism (7). The tank body (1) is a metal tank-shaped structure with an open upper end surface and an inner cavity having a circular arc surface. The two ear shafts (3) are axial metal bodies, which are symmetrically fixed on the upper part of the outer wall of the tank body (1). The ear shaft seat (2) is a metal structure, one side of which is fixedly connected to the outer wall of the tank body (1). The ear shaft (3) is embedded and fixed in the ear shaft seat (2). The ear shaft support (6) is four columnar metal bodies, the upper end of which is fixedly connected to the outer wall of the bottom of the tank body (1). The ear shaft support mechanism includes an ear shaft bracket (4) and a fixing frame (5). The ear shaft bracket (4) is a steel structure, which is a welded steel structure with two upper and lower steel plates as support surfaces and the remaining four steel plates as vertical support. The steel plates of the vertical support are fixedly connected with support steel plates. The upper end surfaces of the two ear shaft brackets (4) are fixedly connected to the lower end surfaces of the two ear shaft seats (2). The fixing frame (5) is four steel plates, which connect the two ear shafts. The bracket (4) is fixedly connected to the four ear shaft supports (6) respectively. The hook mechanism (7) is a steel plate structure, including a hook hanging rod (9), a pull rod I (10), a pull rod II (11), and a fixed rod (12). The pull rod I (10) and the pull rod II (11) are two steel plates respectively. The connection parts of the pull rod I (10) and the pull rod II (11) are fixedly connected by a pin. The hook hanging rod (9) is a metal shaft, which is matched and assembled with the two steel plates of the pull rod I (10) in the form of a pin. The fixed rod (12) is a T-shaped metal rod, one end of which is fixedly connected to the outer wall of the tank body (1), and the other end of which is matched and assembled with the middle part of the two steel plates of the matched pull rod I (10) in the form of a pin. The other end of the pull rod II (11) is fixedly connected to the bottom of the tank body (1).

2. The slag pot device for collecting cold steel in a RH vacuum tank according to claim 1, characterized in that The side structure of the tank body (1) is a truncated cone structure that is larger at the top and smaller at the bottom, and the bottom is a spherical segment structure. The contact portion between the side surface and the inner surface of the bottom of the tank body (1) is an arc transition.

3. The slag pot device for collecting cold steel in a RH vacuum tank according to claim 1, characterized in that An annular retaining ring (13) is mounted on the ear shaft (3), and the retaining ring (13) is a metal structure.

4. The slag pot device for collecting cold steel in a RH vacuum tank as claimed in claim 3, characterized in that The tank body (1), the trunnion (3), the trunnion seat (2), the trunnion support (6), and the retaining ring (13) are integrally cast by a casting method and are made of cast steel.

5. The slag pot device for collecting cold steel in a RH vacuum tank as claimed in claim 1, characterized in that The tank body (1), trunnion (3), trunnion seat (2), and trunnion support (6) are manufactured by welding steel structures.

Images