CN219274415U

CN219274415U - Two cold room heat insulation device

Info

Publication number: CN219274415U
Application number: CN202223392303.1U
Authority: CN
Inventors: 卢小辉; 张文惠; 潘银惠; 王锁福; 戚曙明; 陆泽锋
Original assignee: Zenith Steel Group Nantong Co Ltd
Current assignee: Zenith Steel Group Nantong Co Ltd
Priority date: 2022-12-19
Filing date: 2022-12-19
Publication date: 2023-06-30
Anticipated expiration: 2032-12-19

Abstract

The utility model discloses a two-cooling-chamber heat insulation device, which comprises a fireproof brick wall part which is longitudinally arranged, wherein the fireproof brick wall part is fixedly arranged on the front side of a two-cooling chamber, a plurality of continuous casting billet outlets are arranged on the fireproof brick wall part, and the continuous casting billet outlets are sequentially arranged at intervals along the length direction of the fireproof brick wall part; the two-cooling-chamber heat insulation device can effectively improve the working environment of the tension leveler equipment, prolong the service lives of the tension leveler equipment and the steel plate retaining wall, reduce the labor intensity of staff and play a great role in production and equipment stability.

Description

Two cold room heat insulation device

Technical Field

The utility model relates to the technical field of continuous casting, in particular to a two-cooling-chamber heat insulation device.

Background

In the prior art, the heat-insulating retaining wall in front of the two cold chambers is a steel plate welding part, and the steel plate is easy to corrode in a long-term high-temperature and humid environment, so that the service life is short, and the steel plate needs to be replaced in one year; the outer surface of the second cooling chamber is a withdrawal and straightening machine, and the steel plate retaining wall has strong heat conductivity, so that the ambient temperature near the withdrawal and straightening machine is high in normal production, and personnel cannot spot check or overhaul the withdrawal and straightening machine, and the operation and the service life of withdrawal and straightening machine equipment are seriously influenced.

Disclosure of Invention

The utility model aims to overcome the defects, and provides a two-cooling-chamber heat insulation device which can effectively reduce the propagation of hot gas in the two cooling chambers to a withdrawal and straightening machine at the front side of the two cooling chambers.

The utility model provides a two-cooling-chamber heat insulation device which comprises a longitudinally arranged refractory brick wall part, wherein the refractory brick wall part is fixedly arranged on the front side of a two-cooling chamber, a plurality of continuous casting billet outlets are arranged on the refractory brick wall part, and the continuous casting billet outlets are sequentially arranged at intervals along the length direction of the refractory brick wall part.

Further, the two-cooling-chamber heat insulation device further comprises a wall frame, a cooling coal inlet and a cooling coal outlet, the firebrick wall part is fixedly arranged on the wall frame, a cooling cavity formed by a plurality of pipelines connected in series is formed in the wall frame, the cooling coal inlet is fixedly arranged on the wall frame and communicated with the cooling cavity, and the cooling coal outlet is fixedly arranged on the wall frame and communicated with the cooling cavity.

Further, the firebrick wall portion includes N fire brick walls, the wall frame includes framework and N-1 barrier, the framework includes the bottom frame, the fixed lateral part frame that sets up in bottom frame left and right sides and the fixed top frame that sets up in two lateral part frame upper ends, be formed with the frame mouth in the framework, N-1 barrier sets up in the frame mouth along the length direction interval of bottom frame, and the upper and lower extreme of every barrier respectively with top frame and bottom frame fixed connection, thereby separate into N installing ports with the frame mouth, framework and barrier inside have framework cavity and barrier cavity respectively, framework cavity and barrier cavity intercommunication jointly constitute the cooling chamber, N fire brick walls one-to-one fixed mounting is in N installing ports, N is positive integer.

Further, the cold coal inlet is arranged on the right end of the top frame, and the cold coal outlet is arranged on the left end of the bottom frame.

Further, the number of the continuous casting billet outlets is N, and the N continuous casting billet outlets are arranged on the N refractory brick walls in a one-to-one correspondence manner.

Further, the continuous casting billet cooling device also comprises a plurality of heat shields, wherein the rear ends of the heat shields are fixedly arranged on a plurality of continuous casting billet outlets in a one-to-one correspondence manner.

Further, the longitudinal section dimension of the outer side surface of the heat shield gradually decreases from back to front.

Further, the fire brick wall further comprises a water collecting tank which is fixedly arranged on the rear side wall of the fire brick wall part.

Further, the length direction of the water collecting tank is not smaller than the length direction of the refractory brick wall part.

Further, the upper side of the rear side wall of the water collecting tank is provided with a guide wall which is inclined from bottom to top to the rear side, the guide wall is arranged right above the front side wall of the secondary cooling chamber sedimentation tank, and the upper end face of the guide wall is not higher than the lower end face of the continuous casting billet outlet.

The beneficial effects of the utility model are as follows: the two-cooling-chamber heat insulation device can effectively improve the working environment of the tension leveler equipment, prolong the service lives of the tension leveler equipment and the steel plate retaining wall, reduce the labor intensity of staff and play a great role in production and equipment stability.

Drawings

FIG. 1 is a front view of a two-compartment insulation device in accordance with an embodiment of the present utility model;

FIG. 2 is a cross-sectional view of a two-compartment insulation device taken along line A-A in FIG. 1 in accordance with an embodiment of the present utility model;

FIG. 3 is a cross-sectional view of a two-compartment insulation device according to an embodiment of the present utility model, taken along line B-B of FIG. 1;

FIG. 4 is an enlarged partial view of portion C of FIG. 1;

fig. 5 is a partial enlarged view of a portion D in fig. 1.

In the figure, 1 is a frame body, 2 is a barrier, 3 is a cavity of the frame body, 4 is a cold coal outlet, 5 is a cold coal inlet, 6 is a refractory brick wall, 7 is a retaining wall steel plate, 8 is a heat shield, 9 is a water collecting tank, 10 is a guide wall, 11 is a withdrawal and straightening machine, and 12 is a continuous casting billet outlet.

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.

FIG. 1 is a front view of a two-compartment insulation device in accordance with an embodiment of the present utility model; FIG. 2 is a cross-sectional view of a two-compartment insulation device taken along line A-A in FIG. 1 in accordance with an embodiment of the present utility model; FIG. 3 is a cross-sectional view of a two-compartment insulation device according to an embodiment of the present utility model, taken along line B-B of FIG. 1; FIG. 4 is an enlarged partial view of portion C of FIG. 1; fig. 5 is a partial enlarged view of a portion D in fig. 1.

As shown in fig. 1 to 5, a heat insulation device for a secondary cooling chamber in this embodiment is disposed on the front side of the secondary cooling chamber, and includes a wall frame, a refrigerant inlet 5, a refrigerant outlet 4, N retaining wall steel plates 7, a refractory brick wall, N heat shields 8, and a water collecting tank 9.

The wall frame is a cement wall body and comprises a frame body 1 and N-1 barriers 2. Wherein N is a positive integer, in this embodiment N is 6.

The frame body 1 comprises a bottom frame, side frames fixedly arranged on the left side and the right side of the bottom frame and a top frame fixedly arranged on the upper ends of the two side frames. A quadrangular frame opening is formed in the frame body 1.

The 5 barriers 2 are arranged in the frame openings at equal intervals along the length direction of the bottom frame, and the upper end and the lower end of each barrier 2 are fixedly connected with the top frame and the bottom frame respectively, so that the frame openings are divided into 6 mounting openings.

The frame body 1 and the barrier 2 are respectively provided with a frame body cavity 3 and a barrier cavity, and the frame body cavity 3 and the barrier cavity are mutually communicated to form a cooling cavity.

The refrigerant inlet 5 is arranged at the right end of the top frame and is communicated with the cooling cavity for accessing the refrigerant. In this embodiment, the coolant is cooling water.

The refrigerant outlet 4 is arranged at the left end of the bottom frame and is communicated with the cooling cavity for outputting a refrigerant.

The firebrick wall section comprises 6 firebrick walls 6. Six refractory brick walls 6 are installed in the six installing openings in a one-to-one correspondence, and the upper, lower, left and right walls of each refractory brick wall 6 are respectively fixedly connected with the upper, lower, left and right walls of the corresponding installing opening. The lower end of each refractory brick wall 6 is provided with a strand outlet 12.

The 6 retaining wall steel plates 7 are fixedly arranged on the front side walls of the 6 refractory brick walls 6 in a one-to-one correspondence manner, and the longitudinal section of each retaining wall steel plate 7 is equal to the longitudinal section of the refractory brick wall 6. The retaining wall steel plate 7 is provided with a retaining wall outlet which is arranged corresponding to the continuous casting billet outlet 12.

The rear ends of the six heat shields 8 are fixedly arranged on the six retaining wall outlets in a one-to-one correspondence, and the longitudinal section size of each heat shield 8 is gradually reduced from back to front. In this embodiment, the heat shield 8 has a prismatic table shape. A withdrawal and straightening machine 11 is arranged on the front side of the heat shield 8. The billet passes through the secondary cooling chamber, then passes through the continuous casting billet outlet 12, the retaining wall outlet and the heat shield 8 in sequence, and is output through the roller on the withdrawal and straightening machine 11, and the heat of the high-temperature continuous casting billet is further prevented from being diffused to the withdrawal and straightening machine 11 through the arrangement of the heat shield 8, so that the working environment temperature of the withdrawal and straightening machine is improved.

The water collecting tank 9 is fixedly arranged at the rear side of the bottom frame, and the length direction of the water collecting tank is equal to that of the bottom frame. Mist in the secondary cooling chamber is condensed on the refractory brick wall 6 and flows downwards along the wall of the refractory brick wall 6 into the water collecting tank 9, and is collected through the water collecting tank 9. The front side wall of the water collection trough 9 is not higher than the lower end face of the strand outlet 12. The upper side of the rear side wall is fixedly provided with a guide wall 10 which is inclined from bottom to top to the rear side, the guide wall 10 is arranged right above the front side wall of the two-cold-chamber sedimentation tank, and the upper end face of the guide wall 10 is not higher than the lower end face of the continuous casting billet outlet 12. The water collected in the water collection sump 9 is led via the guide wall 10 into the sedimentation basin of the two-cooling chamber.

The two-cooling-chamber heat insulation device is characterized in that a refractory brick wall is additionally arranged on the rear side of an original steel plate retaining wall, on one hand, the heat radiation of a high-temperature billet in the two cooling chambers and the water mist gas in the two cooling chambers are blocked by the refractory brick wall and cannot contact the original retaining wall steel plate 7, the service condition of the steel plate is good, the service life is obviously prolonged, and the workload of staff for maintaining the steel plate is reduced; on the other hand, the refractory brick wall has good heat insulation performance and poor heat conductivity, blocks the heat radiation of high-temperature billets in the secondary cooling chamber, improves the working temperature around the withdrawal and straightening machine 11, and can be checked by a checking personnel normally to check the withdrawal and straightening machine 11, so that problems can be found in time, the problems can be treated in time, and the stable operation and the normal production of equipment can be ensured, thereby achieving two purposes; meanwhile, the temperature of the refractory brick wall body 6 and the periphery thereof is further reduced by the arrangement of the wall frame cooling chamber, and mist can be condensed and converged to the water collecting tank 9 after contacting the rear side surface of the refractory brick wall, and is converged into the secondary cooling chamber sedimentation tank through the water collecting tank 9; furthermore, the arrangement of the prismatic heat shield 8 further improves the influence of the high-temperature strand on the equipment of the withdrawal and straightening machine 11.

In summary, the present utility model is a specific application example, and the protection scope of the present utility model is not limited, and the technical scheme of adopting equivalent substitution falls within the protection scope of the present utility model.

Claims

1. The utility model provides a two cold room heat insulating device which characterized in that, including the firebrick wall portion of vertical setting, this firebrick wall portion fixed mounting is in the front side of two cold rooms, be provided with a plurality of continuous casting billet export on the firebrick wall portion, this a plurality of continuous casting billet export are followed firebrick wall portion length direction interval sets gradually.

2. The two-cold-room heat insulation device according to claim 1, further comprising a wall frame, a refrigerant inlet and a refrigerant outlet, wherein the firebrick wall part is fixedly installed on the wall frame, a cooling cavity is formed in the wall frame, the refrigerant inlet is fixedly arranged on the wall frame and communicated with the cooling cavity, and the refrigerant outlet is fixedly arranged on the wall frame and communicated with the cooling cavity.

3. The two-cooling-room heat insulation device according to claim 2, wherein the refractory brick wall comprises N refractory brick walls, the wall frame comprises a frame body and N-1 barriers, the frame body comprises a bottom frame, side frames fixedly arranged on the left side and the right side of the bottom frame and a top frame fixedly arranged on the upper ends of the two side frames, a frame opening is formed in the frame body, the N-1 barriers are arranged in the frame opening at intervals along the length direction of the bottom frame, the upper end and the lower end of each barrier are fixedly connected with the top frame and the bottom frame respectively, the frame opening is divided into N mounting openings, a frame body cavity and a barrier cavity are respectively arranged in the frame body and the barrier, the frame body cavity and the barrier cavity are mutually communicated to form the cooling cavity together, the N refractory brick walls are fixedly arranged in the N mounting openings in a one-to-one correspondence manner, and the N is a positive integer.

4. The two-compartment heat shield according to claim 3, wherein the refrigerant inlet is disposed on the right end of the top rim and the refrigerant outlet is disposed on the left end of the bottom rim.

5. A two-cold room heat insulation apparatus according to claim 3, wherein the number of said strand outlets is N, and N said strand outlets are disposed on N said refractory brick walls in one-to-one correspondence.

6. The two-cold-room heat insulation device according to claim 1, further comprising a plurality of heat shields, wherein the rear ends of the heat shields are fixedly installed on the plurality of continuous casting billet outlets in a one-to-one correspondence manner.

7. The apparatus of claim 6, wherein the outer side of the heat shield has a longitudinal cross-sectional dimension that decreases progressively from back to front.

8. The two-compartment insulation of claim 1 further comprising a water collection trough fixedly mounted to the rear sidewall of the firebrick wall section.

9. The apparatus of claim 8, wherein the length of the water collection trough is not less than the length of the firebrick wall.

10. The two-cold-chamber heat insulation device according to claim 8, wherein the upper side of the rear side wall of the water collecting tank is provided with a guide wall which is inclined from bottom to top to the rear side, the guide wall is arranged right above the front side wall of the two-cold-chamber sedimentation tank, and the upper end face of the guide wall is not higher than the lower end face of the continuous casting billet outlet.