CN107052323B

CN107052323B - Bottom pouring type steel barrel

Info

Publication number: CN107052323B
Application number: CN201710335185.5A
Authority: CN
Inventors: 于振河
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-05-12
Filing date: 2017-05-12
Publication date: 2022-12-02
Anticipated expiration: 2037-05-12
Also published as: CN107052323A

Abstract

The invention discloses a bottom casting type steel containing barrel, relates to special equipment in the metallurgical industry, and particularly relates to a bottom casting type steel containing barrel. The bottom pouring type ladle comprises: the device comprises a steel barrel, a brick cup, a brick fixing beam, a sliding plate brick A, a sliding sealing device, a push rod device, a sliding water gap device and a pull rod device; a square water outlet is processed at the lower part of the steel containing barrel; the brick cup is provided with a water outlet hole; the brick cup is arranged on the square water outlet through a brick fixing beam and is positioned inside the steel containing barrel; the sliding sealing device is arranged on the square water outlet; the push rod devices are arranged on two sides of the outer part of the steel containing barrel and are in abutting connection with the sliding sealing device to push the sliding sealing device to move longitudinally; the sliding water gap device is arranged at the bottom of the steel containing barrel and is positioned at the lower part of the sliding sealing device; the pull rod device is arranged on the outer barrel wall of the steel containing barrel and is connected with the sliding water gap device to push or pull the sliding water gap device to move transversely; a sliding plate brick A is arranged between the sliding closing device and the sliding water gap device.

Description

Bottom pouring type steel barrel

Technical Field

The invention discloses a bottom casting type steel containing barrel, and relates to special equipment in the metallurgical industry, in particular to a bottom casting type steel containing barrel.

Background

The casting modes of the steel ladles used in the industry at present are divided into a tipping type, a stopper type, a sliding nozzle type and the like; the casting method is different according to different situations and needs, but each method has different problems, and the specific problems are as follows:

1. the tipping type: the water outlet can not work at the height close to zero any more, and the height difference generates the fall gravity of the molten steel, so that the molten steel falling into the die splashes, thereby causing the problems of personal injury danger to operators, equipment damage and the like;

2. the stopper formula: the carbon rod of the plug hole is contacted with the molten steel for a long time, so that the carbon content of the molten steel in the steel barrel can be changed, and the quality of finished products is reduced;

3. sliding water port: the reciprocating plane movement is realized to open and close the water outlet at the bottom of the barrel to finish the casting work due to the adoption of a lower pair formed by elastic supporting sliding plate bricks. The following problems exist with the slide plate brick in this process:

A. the elastic units apply force to the moving slide plate bricks, and most of the elastic units are fixed and can stretch up and down. Therefore, the upper and lower surfaces of the brick bear the acting and reacting pressure, and the pulling force and the pushing force for driving the plane of the brick to move are the sum of the friction force of the two surfaces of the brick.

B. The slide plate brick can be replaced only when the barrel is in a non-molten steel state.

C. Most of the sliding plate bricks formed by the low pair are water outlets with one caliber, so that the use efficiency is low.

Aiming at the problems in the prior art, a novel bottom pouring type steel containing barrel is researched and designed, so that the problem in the prior art is very necessary to be solved.

Disclosure of Invention

In view of the above problems in the prior art, the present invention is to design a new bottom-pouring ladle to solve the problems in the prior art.

The technical solution of the invention is realized as follows:

the invention relates to a bottom pouring type steel containing barrel, which is characterized by comprising the following components: cheng Gang

The device comprises a barrel, a brick cup, a brick fixing beam, a sliding plate brick A, a sliding sealing device, a push rod device, a sliding water gap device and a pull rod device;

the lower part of the steel containing barrel is provided with a square water outlet;

the brick cup is provided with a water outlet hole; the brick cup is arranged on the square water outlet through a brick fixing beam and is positioned inside the steel containing barrel;

the sliding sealing device is arranged on the square water outlet;

the push rod devices are arranged on two sides of the outer part of the steel containing barrel and are in abutting connection with the sliding sealing device to push the sliding sealing device to move longitudinally;

the sliding water gap device is arranged at the bottom of the steel containing barrel and is positioned at the lower part of the sliding sealing device;

the pull rod device is arranged on the outer barrel wall of the steel barrel and connected with the sliding water gap device, and the sliding water gap device is pushed or pulled to move transversely;

a sliding plate brick A is arranged between the sliding closing device and the sliding water gap device.

The sliding closure device of the present invention comprises: the device comprises a fixed sliding iron, an upper sliding brick frame body and a locking device;

the fixed sliding iron is welded at the bottom of the steel barrel and is positioned on one side of the lower part of the square water outlet;

the locking device is arranged at the bottom of the steel containing barrel, and the other side of the locking device, which is positioned at the lower part of the square water outlet, is opposite to the fixed sliding iron;

the upper sliding brick frame body is of a rectangular frame structure, and two sides of the outer part of the upper sliding brick frame body are provided with oblique planes;

the upper sliding brick is provided with a water outlet hole; the upper sliding brick is arranged in the upper sliding brick frame and is positioned between the fixed sliding iron and the locking device;

the push rod devices are symmetrically arranged on two sides of the steel containing barrel; the push rod device includes: the push rod, the pressure rod and the bracket A; the pressure lever is arranged on the side wall of the steel containing barrel through a bracket A; the push rod is arranged in a through hole at the bottom of the steel containing barrel, the front end of the push rod is contacted with the sliding sealing device, and the rear end of the push rod is connected with a pin shaft at the lower part of the pressure rod.

The sliding gate valve device of the present invention comprises: the device comprises a base frame, a positioning beam, a sliding seat, a spring combination, a sliding plate brick B, a water guide sleeve, a spring base, a shifting beam, a supporting seat, a water guide bushing, a water gap sleeve and a stop iron;

the base frame is arranged at the bottom of the steel containing barrel through a bolt and is positioned at the lower part of the square water outlet;

the bottom of the spring combination is arranged on a base frame through a spring base, and the top of the spring combination is connected with a bottom pin shaft of a sliding seat;

the sliding seat is provided with a sliding plate brick B with a water outlet hole; the lower part of the water outlet hole of the sliding seat is provided with a water guide sleeve and a water guide bush;

the water gap sleeve and the water gap bushing are arranged at the lower part of the base frame;

the positioning beam and the shifting beam are arranged at two ends of the upper part of the base frame through bolts;

the lower part of the base frame is hinged with a supporting seat which is used for supporting a sliding seat which is completely opened when a sliding plate brick A or a sliding plate brick B is replaced.

The pull rod device of the invention comprises: the pull-press rod, the operating rod, the connecting rod and the bracket B are arranged on the bracket;

the tension and compression rod is of an L-shaped structure, and the angle end of the tension and compression rod is hinged with a bracket B arranged on the outer part of the steel barrel; the upper end of the tension and compression rod is inserted with an operating rod, the lower end of the tension and compression rod is hinged with one end of a connecting rod, and the other end of the connecting rod is hinged with the sliding water gap device.

The movement directions of the push rod device and the pull rod device are arranged in a cross manner.

The locking device of the invention comprises: the movable sliding iron, the pin, the positioning sleeve, the clamping seat, the spring C and the fastening shaft; the movable sliding iron is sleeved on the bottom frame of the steel barrel through a pin and a positioning sleeve; the middle part of the fastening shaft is connected with the bottom frame of the steel containing barrel through threads, the front end of the fastening shaft is movably connected with the movable sliding iron, and the clamping seat is clamped on the clamping groove of the fastening shaft to position the fastening shaft; a spring C is arranged on a fastening shaft between the movable sliding iron and the bottom framework of the steel containing barrel; the sleeve wrench is adopted to rotate the fastening shaft to drive the movable sliding iron to move forward or backward.

The corresponding surfaces of the movable sliding iron and the fixed sliding iron are provided with the inclined planes to form a dovetail groove, and the dovetail groove is matched with the inclined planes on the two sides of the upper sliding brick frame body to ensure that the upper sliding brick frame body slides on the dovetail groove.

The springs are combined into two groups, are arranged on the base frame and are respectively positioned on two sides of the water guide sleeve; each group of spring combination comprises: the spring A, the spring B, the support column and the support sleeve; the two ends of the spring A are respectively inserted into the support column and the support sleeve; the supporting sleeve and the supporting column are in pin shaft connection with the spring base and the sliding seat, the springs A are vertically arranged with the spring base and the sliding seat, and N springs A are transversely arranged; two ends of the spring B are respectively inserted into the support column and the support sleeve; the supporting sleeve and the supporting column are connected with the spring base and the sliding seat through pin shafts; the top shaft contact of the spring B and the top shaft contact of the adjacent spring A on one side are arranged on the same axis, and the bottom shaft contact of the spring B and the bottom shaft contact of the adjacent spring A on the other side are arranged on the same axis.

Instructions for use:

under the (normal state) of the equipment, after containing molten steel, moving to a casting place, butting and positioning a water port sleeve and a casting water inlet, pushing an operating lever upwards to drive a connecting rod to pull a sliding water port device to move rightwards through a pulling and pressing rod, moving and deforming a spring combination at the lower part of the sliding water port device, wherein a spring A changes from a vertical state to a right inclined state, a spring B changes from a left inclined state to a vertical state, and a spring A is used for supporting an upper sliding plate and is changed into a spring B; the water outlet of the moved sliding water gap device is communicated with the water outlet on the brick cup in the bottom of the cylinder body, and the molten steel in the rigid body flows downwards along the water outlet and flows into a casting; otherwise, the operating rod is pressed downwards to seal the water outlet hole; in the process, the sliding seat and the sliding plate brick are in single-side friction, and the dynamic spring combination design gives force curves with three values of 240kg at the left starting point, 336kg at the peak value of the middle point and 240kg at the right end point.

Description of replacement of sliding brick:

the equipment is suitable for changing bricks and changing the caliber under the (normal state) (the sliding plate bricks A and B are provided with two water outlets, the sliding plate bricks A and B can be exchanged for use after being transversely turned over, the service life of the sliding plate bricks is prolonged), and the replacement belongs to the emergency state under the state that molten steel exists in the bucket; in an emergency state, the shifting Liang Caxia needs to push the operating rod upwards to replace the sliding plate brick, the sliding water gap device moves rightwards, after the sliding plate brick moves for a certain distance, the springs A and B are in a state of inclining rightwards, the supporting effect on the sliding water gap device is lost, the supporting seat is lifted at the moment, the sliding water gap device is supported, and the brick can be replaced; and restoring the original state after the replacement.

Other descriptions: the left side of the bottom of the barrel is provided with a counterweight space (the counterweight is about 30 kg) without a counterweight part. The advantages of the invention are obvious and mainly appear as follows:

1. the water outlet can be cast at a nearly zero height, so that molten steel sputtering is prevented, and the physical safety of operators and the protection of equipment are ensured;

2. according to the invention, a carbon rod plug is not needed, the carbon content of molten steel is not changed, and the product quality is ensured;

3. the water outlet can be cast at a nearly zero height, so that flow-controllable fine casting is realized;

4. the sliding water gap device is designed into a dynamic spring combination supporting sliding plate brick, the positive pressure applied to the sliding plate brick in the process from closing to opening is not attenuated, and only translation single-side friction is borne, so that the labor is saved by 1/3~1/2 compared with double-side friction; this is extremely important for the peripheral temperature of the equipment to exceed 100 degrees centigrade, which is not suitable for the use of general purpose liquids, pneumatic cylinders are the manual operation of the driving force;

5. the sliding plate bricks A and B of the invention are respectively provided with two water gaps with different calibers, and can be exchanged equally, thereby adjusting the maximum flow and improving the service efficiency of the bricks.

6. The sliding plate brick can be replaced under the emergency state that molten steel exists in the bucket, so that the maintenance efficiency and the production efficiency of equipment are improved;

7. the invention adopts bottom pouring type casting, the fixed base frame does not need to be turned over, two works of casting and brick changing can be completed in the base frame, and the labor and the time are saved.

8. The invention saves the system attached by electricity, liquid and air pressure for a mobile casting device, has the advantages of unchanged device use function, low manufacturing cost, simpler and more convenient use and maintenance and improved operation environment.

In addition to the application of the steel bucket casting, the dynamic spring combination sliding plate device can be applied to the lower outlet of a vertical storage bin with granular media through the modification of enlarging the flow caliber, the spring combination size, the stroke and the like, and the working principle and the advantages are the same as the above.

The invention has the advantages of novel structure, simple and convenient processing, convenient operation, product quality improvement, operation safety guarantee and the like, and positive social benefit and remarkable economic benefit can be generated when the invention is put into the market in large batch.

Drawings

The invention has 8 figures in total, wherein:

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

FIG. 2 is a view from the direction of FIG. 1B;

FIG. 3 isbase:Sub>A view A-A of FIG. 1;

FIG. 4 is a schematic view of a spring assembly;

FIG. 5 is a schematic view of the spring assembly in an operating state;

FIG. 6 is a side view of FIG. 4;

FIG. 7 is a top view of FIG. 4;

fig. 8 is an assembled view of the movable slider.

In the figure: 1. the water guide device comprises a steel barrel 2, a support B3, a pressure lever 4, a push rod 5, a fixed sliding iron 6, a support A7, a connecting rod 8, a tension and compression lever 9, an upper sliding brick 10, an upper sliding brick frame 11, a sliding brick A12, a brick fixing beam 13, a brick cup 14, a control lever 15, a base frame 16, a positioning beam 17, a sliding seat 18, a spring A19, a spring B20, a sliding brick B21, a water guide sleeve 22, a support sleeve 23, a support column 24, a spring base 25, a shifting beam 26, a support seat 27, a water guide bush 28, a water gap bush 29, a water gap bush 30, a blocking iron 31, a movable sliding iron 32, a pin 33, a positioning sleeve 34, a clamping seat 35, a spring 36, a fastening shaft 37 and a water outlet hole.

Detailed Description

The embodiment of the invention is shown in the attached drawings, and the bottom pouring type steel ladle comprises: the device comprises a steel containing barrel 1, a brick cup 13, a brick fixing beam 12, a sliding plate brick A11, a sliding sealing device, a push rod device, a sliding water gap device and a pull rod device;

a square water outlet is processed at the lower part of the steel containing barrel 1;

the brick cup 13 is provided with a water outlet 37; the seat brick 13 is arranged on the square water outlet through a brick fixing beam 12 and is positioned inside the steel containing barrel 1;

the sliding sealing device is arranged on the square water outlet;

the push rod devices are arranged at two sides of the outer part of the steel containing barrel 1 and are in abutting connection with the sliding sealing device to push the sliding sealing device to move longitudinally;

the sliding water gap device is arranged at the bottom of the steel containing barrel 1 and is positioned at the lower part of the sliding sealing device;

the pull rod device is arranged on the outer barrel wall of the steel containing barrel 1 and connected with the sliding water gap device to push or pull the sliding water gap device to move transversely;

a sliding plate brick A11 is arranged between the sliding closing device and the sliding water gap device.

The sliding closure device comprises: the device comprises a fixed sliding iron 5, an upper sliding brick 9, an upper sliding brick frame 10 and a locking device;

the fixed sliding iron 5 is welded at the bottom of the steel containing barrel 1 and is positioned at one side of the lower part of the square water outlet;

the locking device is arranged at the bottom of the steel containing barrel 1, and the other side of the lower part of the square water outlet is arranged opposite to the fixed sliding iron 5;

the upper sliding brick frame body 10 is a rectangular frame structure, and two outer sides are provided with oblique planes;

a water outlet 37 is arranged on the upper sliding brick 9; the upper sliding brick 9 is arranged in the upper sliding brick frame body 10 and is positioned between the fixed sliding iron 5 and the locking device;

the push rod devices are symmetrically arranged at two sides of the steel containing barrel 1; the push rod device includes: the push rod 4, the pressure lever 3 and the bracket A6; the pressure lever 3 is arranged on the side wall of the steel containing barrel 1 through a bracket A9; the push rod 4 is arranged in a through hole at the bottom of the steel containing barrel 1, the front end of the push rod is in surface contact with the upper sliding brick frame body 10, and the rear end of the push rod is connected with a pin shaft at the lower part of the compression bar 3.

The sliding gate valve device includes: the device comprises a base frame 15, a positioning beam 16, a sliding seat 17, a spring combination, a sliding plate brick B20, a water guide sleeve 21, a spring base 24, a shifting beam 25, a supporting seat 26, a water guide bush 27, a water gap bush 28, a water gap bush 29 and a blocking iron 30;

the base frame 15 is arranged at the bottom of the steel containing barrel 1 through bolts and is positioned at the lower part of the square water outlet;

the bottom of the spring combination is arranged on the base frame 15 through a spring base 24, and the top of the spring combination is connected with a bottom pin shaft of the sliding seat 17;

a sliding plate brick B20 with a water outlet 37 is arranged on the sliding seat 17; the lower part of the water outlet hole 37 of the sliding seat 17 is provided with a water guide sleeve 21 and a water guide bush 27;

the water gap sleeve 29 and the water gap bushing 28 are arranged at the lower part of the base frame 15;

the positioning beam 16 and the shifting beam 25 are arranged at two ends of the upper part of the base frame 15 through bolts;

the lower portion of the base frame 15 is hinged with a support base 26 for supporting the slide shoe 17 which is fully opened when the slide brick a11 or the slide brick B20 is replaced.

The pull rod device comprises: the pull-press rod 8, the operating lever 14, the connecting rod 7 and the bracket B2;

the tension and compression rod 8 is of an L-shaped structure, and the angle end of the tension and compression rod is hinged with a bracket B2 arranged on the outer part of the steel containing barrel 1; the upper end of the tension and compression rod 8 is inserted with an operating lever 14, the lower end is hinged with one end of the connecting rod 7, and the other end of the connecting rod 7 is hinged with the rear end of the sliding seat 17.

The motion directions of the push rod device and the pull rod device are arranged in a cross shape.

The corresponding surfaces of the fixed sliding iron 5 and the movable sliding iron 31 are all provided with oblique planes to form a dovetail groove, and the oblique planes are matched with the oblique planes on the two sides of the upper sliding brick frame body 10 to ensure that the upper sliding brick frame body 10 slides on the dovetail groove.

The locking device includes: the movable sliding iron 31, the pin 32, the locating sleeve 33, the clamping seat 34, the spring C35 and the fastening shaft 36; the movable sliding iron 31 is arranged on the bottom frame of the steel containing barrel 1 through a pin 32 and a positioning sleeve 33; the middle part of the fastening shaft 36 is connected with the bottom frame of the steel containing barrel 1 through threads, the front end of the fastening shaft 36 is movably connected with the movable sliding iron 31, and the clamping seat 34 is clamped on the clamping groove of the fastening shaft 36 to position the fastening shaft 36; (ii) a A spring C35 is arranged on a fastening shaft 36 between the movable sliding iron 31 and the bottom frame of the steel containing barrel 1; the barrel spanner is adopted to rotate the fastening shaft 36 to drive the movable sliding iron 31 to move forward or backward.

The springs are combined into two groups, are arranged on the base frame 15 and are respectively positioned at two sides of the water guide sleeve 21; each group of spring combination comprises: a spring A18, a spring B19, a support column 23 and a support sleeve 22; the two ends of the spring A18 are respectively inserted into the supporting column 23 and the supporting sleeve 22; the supporting sleeve 22 and the supporting column 23 are in pin shaft connection with the spring base 24 and the sliding seat 17, the spring A18 is vertically installed with the spring base 24 and the sliding seat 17, and N springs A18 are transversely arranged; two ends of the spring B19 are respectively inserted into the supporting column 23 and the supporting sleeve 22; the supporting sleeve 22 and the supporting column 23 are in pin connection with the spring base 24 and the sliding seat 17; the top shaft contact point of the spring B19 is coaxially arranged with the top shaft contact point of the adjacent spring A18 on one side, and the bottom shaft contact point of the spring B19 is coaxially arranged with the bottom shaft contact point of the adjacent spring A on the other side.

The above description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and all persons skilled in the art should be able to cover the technical solutions of the present invention and the equivalent alternatives or modifications thereof within the technical scope of the present invention.

Claims

1. A bottom pour ladle, characterized in that it comprises: the device comprises a steel barrel (1), a brick cup (13), a brick fixing beam (12), a sliding plate brick A (11), a sliding sealing device, a push rod device, a sliding water gap device and a pull rod device;

the lower part of the steel containing barrel (1) is provided with a square water outlet;

a water outlet (37) is formed in the brick cup (13); the seat brick (13) is arranged on the square water outlet through a brick fixing beam (12) and is positioned inside the steel barrel (1);

the sliding sealing device is arranged on the square water outlet;

the push rod devices are arranged on two sides of the outer part of the steel barrel (1) and are in abutting connection with the sliding sealing device to push the sliding sealing device to move longitudinally;

the sliding water gap device is arranged at the bottom of the steel containing barrel (1) and is positioned at the lower part of the sliding sealing device;

the pull rod device is arranged on the outer barrel wall of the steel containing barrel (1) and is connected with the sliding water gap device to push or pull the sliding water gap device to move transversely;

and a sliding plate brick A (11) is arranged between the sliding closing device and the sliding water gap device.

2. The bottom-pouring ladle according to claim 1 wherein said sliding closure means comprises: the device comprises a fixed sliding iron (5), an upper sliding brick (9), an upper sliding brick frame body (10) and a locking device;

the fixed sliding iron (5) is welded at the bottom of the steel barrel (1) and is positioned on one side of the lower part of the square water outlet;

the locking device is arranged at the bottom of the steel barrel (1), and the other side of the lower part of the square water outlet is arranged opposite to the fixed sliding iron (5);

the upper sliding brick frame body (10) is of a rectangular frame structure, and two outer sides of the upper sliding brick frame body are provided with oblique planes;

a water outlet (37) is formed in the upper sliding brick (9); the upper sliding brick (9) is arranged in the upper sliding brick frame body (10) and is positioned between the fixed sliding iron (5) and the locking device.

3. The bottom-pouring ladle according to claim 1, wherein the push rod devices are symmetrically arranged on both sides of the ladle (1); the push rod device includes: a push rod (4), a pressure lever (3) and a bracket A (6); the pressure lever (3) is arranged on the side wall of the steel barrel (1) through a bracket A (9); the push rod (4) is arranged in a through hole at the bottom of the steel barrel (1), the front end of the push rod is contacted with the sliding sealing device, and the rear end of the push rod is connected with a pin shaft at the lower part of the pressure lever (3).

4. The bottom-pouring ladle according to claim 1, wherein said sliding gate valve assembly comprises: the device comprises a base frame (15), a positioning beam (16), a sliding seat (17), a spring combination, a sliding plate brick B (20), a water guide sleeve (21), a spring base (24), a shifting beam (25), a supporting seat (26), a water guide bushing (27), a water gap bushing (28), a water gap sleeve (29) and a blocking iron (30);

the base frame (15) is arranged at the bottom of the steel barrel (1) through a bolt and is positioned at the lower part of the square water outlet;

the bottom of the spring combination is arranged on a base frame (15) through a spring base (24), and the top of the spring combination is connected with a bottom pin shaft of the sliding seat (17);

the sliding seat (17) is provided with a sliding plate brick B (20) with a water outlet (37); the lower part of the water outlet hole (37) of the sliding seat (17) is provided with a water guide sleeve (21) and a water guide bush (27);

the nozzle sleeve (29) and the nozzle bushing (28) are arranged at the lower part of the base frame (15);

the positioning beam (16) and the shifting beam (25) are arranged at two ends of the upper part of the base frame (15) through bolts;

and the lower part of the base frame (15) is hinged with a supporting seat (26) for supporting the sliding seat (17) which is completely opened when the sliding plate brick A (11) or the sliding plate brick B (20) is replaced.

5. The bottom-pouring ladle as defined in claim 1 wherein said tie bar means comprises: a tension and compression rod (8), an operating lever (14), a connecting rod (7) and a bracket B (2);

the tension and compression rod (8) is of an L-shaped structure, and the angle end of the tension and compression rod is hinged with a bracket B (2) arranged on the outer part of the steel barrel (1); the upper end of the tension and compression rod (8) is inserted with an operating rod (14), the lower end of the tension and compression rod is hinged with one end of a connecting rod (7), and the other end of the connecting rod (7) is hinged with the sliding water gap device.

6. The bottom-pouring ladle according to claim 1 wherein the direction of movement of said push rod means and said pull rod means is arranged in a criss-cross pattern.

7. The bottom-pouring ladle according to claim 2 wherein said locking means comprises: the device comprises a movable sliding iron (31), a pin (32), a positioning sleeve (33), a clamping seat (34), a spring C (35) and a fastening shaft (36); the movable sliding iron (31) is arranged on the bottom frame of the steel barrel (1) through a pin (32) and a positioning sleeve (33); the middle part of the fastening shaft (36) is connected with a bottom framework of the steel containing barrel (1) through threads, the front end of the fastening shaft (36) is movably connected with the movable sliding iron (31), and the clamping seat (34) is clamped on the clamping groove of the fastening shaft (36) to position the fastening shaft (36); a spring C (35) is arranged on a fastening shaft (36) between the movable sliding iron (31) and the bottom frame of the steel containing barrel (1); a barrel spanner is adopted to rotate the fastening shaft (36) to drive the movable sliding iron (31) to move forward or backward.

8. The bottom pouring type steel ladle according to claim 7, wherein the corresponding surfaces of the movable sliding iron (31) and the fixed sliding iron (5) are all provided with oblique cutting surfaces to form a dovetail groove, and the oblique cutting surfaces are matched with the oblique cutting surfaces on two sides of the upper sliding brick frame body (10) to ensure that the upper sliding brick frame body (10) slides on the dovetail groove.

9. The bottom-pouring ladle according to claim 4, wherein the two groups of spring assemblies are arranged on the base frame (15) and are respectively positioned at two sides of the water guide sleeve (21); each group of spring combination comprises: a spring A (18), a spring B (19), a support column (23) and a support sleeve (22); two ends of the spring A (18) are respectively inserted into the supporting column (23) and the supporting sleeve (22); the supporting sleeve (22) and the supporting column (23) are in pin shaft connection with the spring base (24) and the sliding seat (17), the spring A (18) is vertically installed with the spring base (24) and the sliding seat (17), and N springs A (18) are transversely arranged; two ends of the spring B (19) are respectively inserted into the supporting column (23) and the supporting sleeve (22); the supporting sleeve (22) and the supporting column (23) are in pin connection with the spring base (24) and the sliding seat (17); the top shaft contact of the spring B (19) and the top shaft contact of the adjacent spring A (18) on one side are arranged on the same axis, and the bottom shaft contact of the spring B (19) and the bottom shaft contact of the adjacent spring A on the other side are arranged on the same axis.