CN218989298U - Cast steel cooling wall structure - Google Patents

Abstract

The utility model discloses a cast steel cooling wall structure, which comprises a cast steel furnace body and a sealing unit; cast steel furnace body: the inside of the cooling conveying pipe is provided with a rectangular through groove, the bottom wall surface of the rectangular through groove is provided with a cooling conveying pipe, a liquid inlet arranged on the left side of the front end of the outer cambered surface of the cooling conveying pipe is provided with a liquid inlet, a liquid outlet arranged on the right side of the rear end of the outer cambered surface of the cooling conveying pipe is provided with a liquid outlet, connecting pipes are arranged in the liquid outlets uniformly arranged on the upper end of the outer cambered surface of the cooling conveying pipe, and the inner cambered surfaces of the connecting pipes are all connected with cooling conveying pipes through screw threads of the screw grooves; and a sealing unit: including annular gasbag, this cast steel cooling wall structure, the assembled design is convenient for the staff to carry out the individual change or maintain to the cooling transmission pipe, has promoted the antiseep effect of cooling transmission pipe junction in cast steel cooling wall greatly, ensures that its sealing force can self-adaptation when the during operation produces undulant because of various factors and follows the change.

Description

Cast steel cooling wall structure

Technical Field

The utility model relates to the technical field of cast steel cooling, in particular to a cast steel cooling wall structure.

Background

The blast furnace is the most main equipment of the steelmaking process, the interior of the blast furnace is subjected to complex high-temperature reduction reaction, a special cast steel cooling wall structure is usually required to cool and protect a furnace shell, a cooling pipeline in the existing cast steel cooling wall structure is usually fixed in the blast furnace cast steel, and also is provided with an assembled cooling pipeline which is connected through threads, when a single cooling pipeline is damaged, the fixed cooling pipeline is inconvenient to replace and maintain, the assembled cooling pipeline is usually sealed at the threaded connection part by a single rubber pad, but the single sealing mode still has the anti-leakage condition after long-time use, the leaked cooling can pollute or corrode the cast steel cooling wall, and the sealing force of the cooling transmission pipeline cannot adaptively change along when the cooling transmission pipeline fluctuates due to various factors during working.

Disclosure of Invention

The utility model aims to overcome the prior art, and provides a cast steel cooling wall structure, the assembled design is convenient for workers to independently replace or maintain a cooling transmission pipe, the anti-seepage effect of the joint of the cooling transmission pipe in the cast steel cooling wall is greatly improved, the condition that cooling liquid leaks out from the joint of the cooling transmission pipe to pollute or corrode the cast steel cooling wall is avoided, the sealing force of the cooling transmission pipe can adaptively change along with fluctuation caused by various factors during working, and the problems in the background art can be effectively solved.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a cast steel cooling wall structure comprises a cast steel furnace body and a sealing unit;

cast steel furnace body: the inside of the cooling conveying pipe is provided with a rectangular through groove, the bottom wall surface of the rectangular through groove is provided with a cooling conveying pipe, a liquid inlet arranged on the left side of the front end of the outer cambered surface of the cooling conveying pipe is provided with a liquid inlet, a liquid outlet arranged on the right side of the rear end of the outer cambered surface of the cooling conveying pipe is provided with a liquid outlet, connecting pipes are arranged in the liquid outlets uniformly arranged on the upper end of the outer cambered surface of the cooling conveying pipe, and the inner cambered surfaces of the connecting pipes are all connected with cooling conveying pipes through screw threads of the screw grooves;

and a sealing unit: including annular gasbag, annular gasbag sets up respectively in the ring channel that cooling transmission pipe extrados lower extreme set up, and the assembled design is convenient for the staff to carry out individual change or maintenance to the cooling transmission pipe, has promoted the antiseep effect of cooling transmission pipe junction in the cast steel cooling wall greatly, avoids the coolant liquid to leak out from the joint of cooling transmission pipe and leads to pollution or corrodes cast steel cooling wall's condition to take place, guarantees that its sealing force can self-adaptation when the during operation produces undulant because of various factors to follow the change.

Further, the sealing unit further comprises a gas cavity channel and a piston, the gas cavity channels are respectively and uniformly arranged at the lower end of the inside of the cooling transmission pipe, the gas inlets uniformly arranged on the outer cambered surfaces of the annular air bags are respectively communicated with the gas outlets of the vertically adjacent gas cavity channels, the pistons are vertically and slidably connected in the vertical cavity channels of the gas cavity channels, and the piston rods at the lower ends of the pistons respectively penetrate through the through holes arranged at the lower ends of the cooling transmission pipe and extend to the outside, so that the annular air bags are expanded.

Further, the sealing unit further comprises rectangular guide rods, the rectangular guide rods are respectively arranged on the top wall surface of the gas cavity, and the rectangular guide rods are respectively connected with vertically adjacent pistons and piston rods in a sliding mode to form rectangular openings in the middle of the upper end of the whole body, so that the pistons are guided to move.

Further, the sealing unit further comprises springs, the springs are respectively arranged between the upper end face of the piston and the top wall face of the gas cavity, and the springs are respectively movably sleeved outside the vertically adjacent rectangular guide rods to play a role in elastic support.

Further, the sealing unit further comprises spherical seats, the spherical seats are respectively arranged on the lower end face of the piston rod at the lower end of the piston, and spherical heads at the lower ends of the spherical seats are respectively matched with the step faces of the inner cavities of the vertically adjacent connecting pipes, so that the smoothness in the structure connection process is ensured.

Furthermore, sealing plates are arranged on the front, back, left and right surfaces of the cast steel furnace body through bolts, so that the condition that the cooling efficiency is reduced due to the fact that the cooling transmission pipe is exposed outside is avoided.

Furthermore, the lower end face of the cooling transmission pipe is respectively provided with avoidance grooves which are in one-to-one correspondence with the spherical seats, and avoidance places are provided for the spherical seats.

Compared with the prior art, the utility model has the beneficial effects that: the cast steel cooling wall structure has the following advantages:

1. when the furnace shell needs to be cooled and protected through the cooling wall, a worker is communicated with the liquid inlet pipe through the cooling wall, then the liquid return pipe is communicated with the liquid outlet pipe, then the cooling liquid is pumped into the cooling conveying pipe through the liquid inlet pipe, and then the cooling liquid enters the cooling conveying pipe through the connecting pipe in a split mode, so that the furnace shell is cooled and protected, the cooling liquid after heat exchange is discharged through the liquid outlet pipe, finally the cooling liquid is continuously used through the liquid return pipe in a backflow mode, an efficient cooling protection effect can be achieved through circulating reciprocation, when the cooling conveying pipe in the cast steel cooling wall needs to be replaced or maintained, the cooling conveying pipe can be rotated anticlockwise, the cooling conveying pipe is led to exit the inside of the connecting pipe under the action of threads, and the cooling conveying pipe is singly replaced or maintained through the assembled design, so that the worker is convenient for the cooling conveying pipe.

2. After replacement or maintenance, the spherical head in the spherical seat is matched with the step surface of the inner cavity of the connecting pipe for contact, under the action of the screw thread, when the cooling transmission pipe continuously penetrates into the connecting pipe, the spherical seat, the piston and the piston rod overcome the elasticity of the spring and move upwards along the rectangular guide rod, and finally the spherical seat is retracted in the corresponding avoidance groove, and when the piston slides in the gas cavity in the upward moving process, the gas stored in the gas cavity is extruded, so that the annular air bag expands, the joint of the connecting pipe and the cooling transmission pipe is extruded, the anti-seepage effect of the joint of the cooling transmission pipe in the cast steel cooling wall is greatly improved, the condition that the cooling liquid leaks out from the joint of the cooling transmission pipe to pollute or corrode the cast steel cooling wall is avoided, and the sealing force of the cooling transmission pipe can change adaptively when the cooling transmission pipe is fluctuated due to various factors in working is ensured.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic cross-sectional view of the present utility model;

FIG. 3 is a schematic plan sectional view of the present utility model;

FIG. 4 is an enlarged schematic view of the structure of the present utility model at A;

fig. 5 is an enlarged schematic view of the structure of the present utility model at B.

In the figure: 1 cast steel furnace body, 2 rectangular through grooves, 3 cooling conveying pipes, 4 liquid inlet pipes, 5 liquid outlet pipes, 6 connecting pipes, 7 cooling conveying pipes, 8 sealing plates, 9 sealing units, 91 annular air bags, 92 gas channels, 93 pistons, 94 rectangular guide rods, 95 springs, 96 spherical seats and 10 avoiding grooves.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-5, the present embodiment provides a technical solution: a cast steel cooling wall structure comprises a cast steel furnace body 1 and a sealing unit 9;

cast steel furnace body 1: the cast steel furnace body 1 provides an installation supporting place for an accessory mechanism unit, a rectangular through groove 2 is arranged in the cast steel furnace body, a cooling conveying pipe 3 is arranged on the bottom wall surface of the rectangular through groove 2, a liquid inlet 4 is arranged at the liquid inlet arranged on the left side of the front end of an outer arc surface of the cooling conveying pipe 3, a liquid outlet 5 is arranged at the liquid outlet arranged on the right side of the rear end of the outer arc surface of the cooling conveying pipe 3, connecting pipes 6 are arranged in the liquid outlets uniformly arranged on the upper end of the outer arc surface of the cooling conveying pipe 3, the outer arc surface of the connecting pipes 6 are wrapped with heat insulation layers, the heat insulation layers are formed by combining lining rock wool layers and heat insulation surface aluminum foil heat reflection layers, the inner arc surfaces of the connecting pipes 6 are connected with cooling conveying pipes 7 through screw threads, when cooling protection is needed to be carried out on a furnace shell through a cooling wall, a worker communicates a cooling liquid output pipe with the liquid inlet 4, then the cooling liquid return pipe is communicated with the liquid outlet pipe 5, then the cooling liquid is pumped into the cooling conveying pipe 3 through the liquid inlet pipe 4, and then is shunted into the cooling conveying pipe 7 through the connecting pipe 6, so that the furnace shell is cooled and protected, the cooling liquid after heat exchange is discharged through the liquid outlet pipe 5, and finally is continuously used by the reflux of the cooling liquid return pipe, so that the efficient cooling protection effect can be realized by circulating and reciprocating, when the cooling conveying pipe 7 in the cast steel cooling wall needs to be replaced or maintained, the cooling conveying pipe 7 is rotated anticlockwise, the cooling conveying pipe 7 is led to exit the inside of the connecting pipe 6 under the action of threads, the assembled design is convenient for independently replacing or maintaining the cooling conveying pipe 7, and the influence on later replacement or maintenance caused by the fixing of the cooling conveying pipe 7 is avoided;

sealing unit 9: comprises an annular air bag 91, wherein the annular air bag 91 is respectively arranged in an annular groove arranged at the lower end of the outer cambered surface of a cooling transmission pipe 7, annular heat insulation pads are respectively arranged in the annular groove arranged at the lower end of the outer cambered surface of the cooling transmission pipe 7, the annular heat insulation pads are annular heat insulation pads formed by glass fiber, asbestos and aerogel felts, the annular heat insulation pads have good heat insulation effect, the heat insulation layer wrapped by the outer cambered surface of a connecting pipe 6 and the annular heat insulation pads are mutually matched to avoid the influence of cold and hot temperature on the annular air bag 91 and compressed gas in the annular air bag to the inside of the annular air bag at the maximum extent, the sealing unit 9 also comprises a gas cavity 92 and a piston 93, the gas cavity 92 are respectively and uniformly arranged at the lower end of the inside of the cooling transmission pipe 7, air inlets uniformly arranged at the outer cambered surface of the annular air bag 91 are respectively communicated with air outlets of vertically adjacent gas cavities 92, pistons 93 are vertically and slidingly connected in the vertical cavities of the gas cavity 92, the piston rod at the lower end of the piston 93 passes through the through hole arranged at the lower end of the cooling transmission pipe 7 and extends to the outside, the sealing unit 9 also comprises a rectangular guide rod 94, the rectangular guide rod 94 is respectively arranged on the top wall surface of the gas cavity 92, the rectangular guide rod 94 is respectively connected with the rectangular opening arranged at the middle part of the upper end of the integral body formed by the vertically adjacent piston 93 and the piston rod in a sliding way, the sealing unit 9 also comprises a spring 95, the spring 95 is respectively arranged between the upper end surface of the piston 93 and the top wall surface of the gas cavity 92, the spring 95 is respectively movably sleeved outside the vertically adjacent rectangular guide rod 94, the sealing unit 9 also comprises a spherical seat 96, the spherical seat 96 is respectively arranged on the lower end surface of the piston rod at the lower end of the piston 93, the spherical head at the lower end of the spherical seat 96 is respectively matched with the step surface of the inner cavity of the vertically adjacent connecting pipe 6, and when the cooling transmission pipe 7 is separated from the connecting pipe 6, under the action of the resilience force of the spring 95, the spherical seat 96, the piston 93 and the piston rod are pushed to move along the rectangular guide rod 947 for resetting, after replacement or maintenance, the spherical head in the spherical seat 96 is matched with the step surface of the inner cavity of the connecting pipe 6 for contact in the process of installing the cooling transmission pipe 7 and the connecting pipe 6, under the action of threads, when the cooling transmission pipe 7 continuously goes deep into the connecting pipe 6, the spherical seat 96, the piston 93 and the piston rod overcome the elasticity of the spring 95 and move upwards along the rectangular guide rod 94, and finally the spherical seat 96 is retracted in the corresponding avoidance groove 10, and when the piston 93 slides with the gas cavity 92 in the process of moving upwards, the gas stored in the gas cavity 92 is extruded, so that the annular air bag 91 is expanded, the joint of the connecting pipe 6 and the cooling transmission pipe 7 is extruded tightly, the anti-leakage effect of the joint of the cooling transmission pipe 7 is greatly improved, and pollution or corrosion of the cast steel cooling wall is avoided due to leakage of cooling liquid from the joint of the cooling transmission pipe 7.

Wherein: sealing plates 8 are arranged on the front, back, left and right surfaces of the cast steel furnace body 1 through bolts, and the sealing plates 8 avoid the condition that the cooling efficiency is reduced due to the fact that the cooling transmission pipes 7 are exposed outside.

Wherein: the lower end surface of the cooling transmission pipe 7 is respectively provided with avoidance grooves 10 which are in one-to-one correspondence with the spherical seats 96, and the spherical seats 96 can retract into the corresponding avoidance grooves 10 to provide avoidance places for the spherical seats 96.

The working principle of the cast steel cooling wall structure provided by the utility model is as follows: when the furnace shell is required to be cooled and protected through the cooling wall, a worker communicates the cooling liquid output pipe with the liquid inlet pipe 4, then communicates the cooling liquid return pipe with the liquid outlet pipe 5, pumps cooling liquid into the cooling conveying pipe 3 through the liquid inlet pipe 4, and then shunts through the connecting pipe 6 into the cooling conveying pipe 7, thereby realizing the cooling and protecting of the furnace shell, the cooling liquid after heat exchange is discharged through the liquid outlet pipe 5, finally, the cooling liquid return pipe is used for backflow, thus realizing the efficient cooling and protecting function, when the cooling conveying pipe 7 in the cast steel cooling wall is required to be replaced or maintained, the cooling conveying pipe 7 is rotated anticlockwise, the cooling conveying pipe 7 is led to exit the inside of the connecting pipe 6 under the action of threads, the assembled design is convenient for independently replacing or maintaining the cooling conveying pipe 7, the problem that the cooling transmission pipe 7 is fixed to influence the later replacement or maintenance is avoided, when the cooling transmission pipe 7 is separated from the connecting pipe 6, the spherical seat 96, the piston 93 and the piston rod are pushed to move under the action of the resilience force of the spring 95 and reset along the rectangular guide rod 947, after the replacement or maintenance, in the process of installing the cooling transmission pipe 7 and the connecting pipe 6, the spherical head in the spherical seat 96 is matched with the step surface of the inner cavity of the connecting pipe 6 to be contacted, when the cooling transmission pipe 7 continuously penetrates into the connecting pipe 6 under the action of the screw thread, the spherical seat 96, the piston 93 and the piston rod overcome the elasticity of the spring 95 and move upwards along the rectangular guide rod 94, finally, the spherical seat 96 is retracted in the corresponding avoidance groove 10, and when the piston 93 slides with the gas cavity 92 in the process of moving upwards, the gas stored in the gas cavity 92 is extruded, the annular air bag 91 is expanded, so that the joint of the connecting pipe 6 and the cooling transmission pipe 7 is squeezed, the anti-seepage effect of the joint of the cooling transmission pipe 7 in the cast steel cooling wall is greatly improved, the condition that cooling liquid leaks out from the joint of the cooling transmission pipe 7 to pollute or corrode the cast steel cooling wall is avoided, the sealing force of the cooling transmission pipe can adaptively change along with the fluctuation of various factors during the working process, and the sealing plate 8 is prevented from being exposed outside to reduce the cooling efficiency.

The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.

Claims (7)

1. The utility model provides a cast steel cooling wall structure which characterized in that: comprises a cast steel furnace body (1) and a sealing unit (9);

cast steel furnace body (1): the inside of the cooling conveying pipe is provided with a rectangular through groove (2), the bottom wall surface of the rectangular through groove (2) is provided with a cooling conveying pipe (3), a liquid inlet arranged on the left side of the front end of the outer arc surface of the cooling conveying pipe (3) is provided with a liquid inlet pipe (4), a liquid outlet arranged on the right side of the rear end of the outer arc surface of the cooling conveying pipe (3) is provided with a liquid outlet pipe (5), connecting pipes (6) are arranged in the liquid outlets uniformly arranged on the upper end of the outer arc surface of the cooling conveying pipe (3), and the inner arc surfaces of the connecting pipes (6) are all connected with cooling conveying pipes (7) through screw threads of the screw grooves;

sealing unit (9): the cooling transmission pipe comprises an annular air bag (91), wherein the annular air bag (91) is respectively arranged in an annular groove arranged at the lower end of the outer cambered surface of the cooling transmission pipe (7).

2. The cast steel stave structure of claim 1 wherein: the sealing unit (9) further comprises a gas cavity (92) and a piston (93), the gas cavity (92) is respectively and evenly arranged at the lower end of the inside of the cooling transmission pipe (7), the air inlets evenly arranged on the outer cambered surface of the annular air bag (91) are respectively communicated with the air outlets of the vertically adjacent gas cavity (92), the piston (93) is vertically and slidably connected in the vertical cavity of the gas cavity (92), and the piston rod at the lower end of the piston (93) respectively penetrates through the through holes arranged at the lower end of the cooling transmission pipe (7) and extends to the outside.

3. The cast steel stave structure of claim 2 wherein: the sealing unit (9) further comprises rectangular guide rods (94), the rectangular guide rods (94) are respectively arranged on the top wall surface of the gas cavity (92), and the rectangular guide rods (94) are respectively connected with the vertically adjacent pistons (93) and the piston rods in a sliding mode to form a rectangular opening which is arranged in the middle of the upper end of the whole body.

4. A cast steel stave structure according to claim 3, characterized in that: the sealing unit (9) further comprises springs (95), the springs (95) are respectively arranged between the upper end face of the piston (93) and the top wall face of the gas cavity (92), and the springs (95) are respectively movably sleeved outside the vertically adjacent rectangular guide rods (94).

5. The cast steel stave structure of claim 2 wherein: the sealing unit (9) further comprises spherical seats (96), the spherical seats (96) are respectively arranged on the lower end faces of piston rods at the lower ends of the pistons (93), and spherical heads at the lower ends of the spherical seats (96) are respectively matched with the step faces of the inner cavities of vertically adjacent connecting pipes (6).

6. The cast steel stave structure of claim 1 wherein: sealing plates (8) are arranged on the front, rear, left and right surfaces of the cast steel furnace body (1) through bolts.

7. The cast steel stave structure of claim 5 wherein: the lower end face of the cooling transmission pipe (7) is respectively provided with avoidance grooves (10) which are in one-to-one correspondence with the spherical seats (96).

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