Novel crystallizer casting powder baking device

Abstract

The novel crystallizer casting powder baking device comprises a baking box shell, a baking part is arranged at the front end of the baking box shell, and a heating part is arranged at the rear end of the baking box shell. The baking part is mainly composed of the front end of a baking box shell hinged to the door I and the door II through galvanized hinges. The baking part further comprises an air blower, an electric control box and an air hole located beside the air blower. A bracket stand column I and a bracket stand column II are fixed on the inner side wall of the baking box, a baking tray I, a baking tray II and a baking tray III are embedded on the side walls of the two stand columns, and a plurality of through holes are formed in each baking tray so as to facilitate heat transfer and moisture evaporation. A door lock mechanism is further arranged between the door I and the baking oven shell and between the door II and the baking oven shell so as to ensure the safety in the baking process. And the heating part adopts a submersed nozzle baking oven and is over against the rear end of the baking oven shell so as to efficiently bake the small square billet casting powder on the baking tray.

Description

Technical Field

[0001] The utility model relates to the technical field of continuous casting equipment, in particular to a novel crystallizer protection slag baking device. Background Art

[0002] In the continuous casting production process, mold slag plays a key role, and the moisture index of the mold slag is one of the most important indicators. Usually, the moisture requirement of the mold slag for small square billets is less than or equal to 0.5%. High moisture content in the mold slag will make the spreadability of the mold slag worse. In severe cases, the mold slag will clump and be retained on the wall of the crystallizer during casting. Sometimes unmelted mold slag will be drawn between the crystallizer wall and the primary continuous casting billet, deteriorating the surface quality of the billet. The mold slag that meets the moisture index requirements of the manufacturer will absorb moisture after storage, resulting in this index not meeting the standard;

[0003] Currently, the treatment method is to use electric baking or place the entire packaging bag on a heat source to bake to reduce the moisture in the protective slag, but the former wastes a lot of energy, and the latter has a poor baking effect (the moisture is blocked by the packaging bag after baking and cannot evaporate).

[0004] Therefore, in order to avoid energy waste and improve the baking performance of protective slag, a new type of crystallizer baking device is needed to solve the shortcomings of the traditional baking method. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a novel crystallizer protective slag baking device with good baking effect and suitable for baking protective slag in continuous casting operation in view of the deficiencies in the prior art.

[0006] The technical problem to be solved by the utility model is achieved through the following technical solutions: a novel crystallizer powder baking device, comprising a baking oven shell, a baking portion provided at the front end of the baking oven shell, and a heating portion provided at the rear end of the baking oven shell;

[0007] The baking section includes doors I and II hinged at the front end of the baking oven shell, and galvanized hinges I, II, III and IV are provided on the top and bottom of doors I and II. Doors I and II are hinged to the front end of the baking oven shell through galvanized hinges I, II, III and IV. A blower for blowing air into the baking oven shell is provided on the top of the baking oven shell, an electric control box is provided on the outer wall of the baking oven shell, and air holes are also provided on the baking oven shell next to the blower. Bracket columns I and II are vertically fixed on the inner side wall of the baking oven shell, baking trays I, II and III are embedded on the side walls of bracket columns I and II, and a plurality of through holes are opened on baking trays I, II and III. A door lock mechanism is also provided between doors I, II and the baking oven shell;

[0008] The heating part includes an immersion nozzle baking box, which is opposite to the rear end of the baking box shell, so as to bake the small square billet protection slag on baking trays I, II and III in the baking box shell.

[0009] The technical problem to be solved by the present invention can also be achieved through the following technical solutions. In the above-mentioned novel crystallizer protective slag baking device, the door lock mechanism includes a bolt hole I and a bolt hole II. The bolt hole I and the bolt hole II are fixed one above and one below at the front end of the baking oven shell. The axes of the bolt hole I and the bolt hole II are collinear. A vertically arranged bolt that can be inserted into the bolt hole I and the bolt hole II is installed on the door I or the door II.

[0010] The technical problem to be solved by the present invention can also be achieved through the following technical solutions. In the above-mentioned novel crystallizer protective slag baking device, the baking tray I, baking tray II and baking tray III are arranged equidistantly on the side walls of the bracket column I and the bracket column II.

[0011] The technical problem to be solved by the present invention can also be achieved through the following technical solutions. The above-mentioned novel crystallizer protective slag baking device is further equipped with rollers I, II, III and IV at the four corners of the bottom surface of the baking box shell.

[0012] The technical problem to be solved by the present invention can also be achieved through the following technical solutions. The above-mentioned novel crystallizer protective slag baking device is also fixed with a door buckle on the middle outer wall of door I and door II to lock door I and door II.

[0013] Compared with the prior art, the beneficial technical effects of the present invention are:

[0014] (1) The door lock mechanism and door catch on door I and door II not only enhance the safety of the equipment, but also make the operation easier. The baking part can be quickly opened or closed, and the protective slag on the baking tray can be easily placed in or taken out. In addition, baking tray I, baking tray II and baking tray III are arranged equidistantly on bracket column I and bracket column II, ensuring that the protective slag on each tray can obtain a uniform baking effect, avoiding the problem of uneven baking due to position differences.

[0015] (2) Rollers I, II, III and IV installed at the bottom of the equipment enable the entire baking device to be easily moved, facilitating transfer between different continuous casting machines or work areas, thereby improving the flexibility and ease of use of the equipment;

[0016] (3) Tangible Benefit I: Save baking costs and improve baking efficiency; after being put into use, the baking power of conventional electric baking equipment is 12KW, and the total power of the electric control and motor of this baking device is 0.5KW. The use time of a single device is calculated based on 20 hours per day: Benefit = number of devices used * energy saved * use time * industrial electricity price = 3 devices (3 continuous casting machines) * 11.5KW (12KW - 0.5KW) * 7300h (20h * 365 days) * 0.64 yuan / kWh = 161,200 yuan / year;

[0017] (4) Tangible Benefit II: The baking effect of the protective slag for continuous casting is guaranteed, which can effectively reduce the moisture content of the protective slag by 70%. At the same time, the unbaked protective slag and the protective slag baked in the device for 2 hours were taken. The laboratory analysis results showed that the moisture content of the unbaked protective slag was 0.7%, and the moisture content of the protective slag baked for 2 hours was 0.2%. The baked protective slag meets the requirements for continuous casting.

[0018] (5) Intangible benefits: Improve the baking effect of protective slag and reduce the hidden dangers of steel billet surface quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the main structure of the utility model;

[0021] Figure 3 It is a left-side structural schematic diagram of the present invention.

[0022] Reference numerals:

[0023] 1. Baking oven housing; 2. Electrical control box; 3. Blower; 4. Air vent; 5. Baking tray I; 6. Baking tray II; 7. Baking tray III; 8. Bracket column I; 9. Bracket column II; 10. Latch jack I; 11. Latch jack; 12. Roller I; 13. Roller II; 14. Roller III; 15. Roller IV; 16. Galvanized hinge I; 17. Galvanized hinge II; 18. Galvanized hinge III; 19. Galvanized hinge IV; 20. Door catch; 21. Latch; 22. Door I; 23. Door II; 24. Immersed nozzle baking oven. DETAILED DESCRIPTION

[0024] The following further describes the specific technical solutions of the present invention with reference to the accompanying drawings, so as to facilitate further understanding of the present invention by those skilled in the art, and does not constitute a limitation to their rights.

[0025] Example 1, reference Figure 1-3A novel mold powder baking device includes a baking oven shell 1, which is formed into a roughly box-shaped structure. Rollers I 12, II 13, III 14, and IV 15 are installed at the four corners of the bottom surface of the baking oven shell 1. The purpose of designing rollers I 12, II 13, III 14, and IV 15 is to facilitate the movement of the baking device. A baking portion is provided at the front end of the baking oven shell 1, and a heating portion 16 is provided at the rear end of the baking oven shell 1.

[0026] The baking part includes a door I 22 and a door II 23 hinged at the front end of the baking oven shell 1. The door I 22 and the door II 23 are both formed into a roughly square door structure. Galvanized hinges I 16, galvanized hinges II 17, galvanized hinges III 18 and galvanized hinges IV 19 are provided on the top and bottom of the door I 22 and the door II 23. The purpose of the design of the galvanized hinges I 16, galvanized hinges II 17, galvanized hinges III 18 and galvanized hinges IV 19 is to facilitate the hinged connection of the door I 22 and the door II 23 to the baking oven shell 1. The door I 22 and the door II 23 are hinged to the baking oven shell 1 by the galvanized hinges I 16, galvanized hinges Chain II 17, galvanized hinge III 18 and galvanized hinge IV 19 are hinged at the front end of the oven shell 1. A blower 3 for blowing air into the oven shell 1 is provided on the top of the oven shell 1. The blower 3 is a conventional technology and its model and specification can be selected according to the use requirements. An electric control box 2 is provided on the outer wall of the oven shell 1. The electric control box 2 is convenient for starting and closing the blower 3 and the immersion nozzle oven described below. An air vent 4 is also provided on the oven shell 1 next to the blower 3. The air vent can be a circular through hole and its number can be selected according to the use requirements. The inner wall of the shell 1 is vertically fixed with a bracket column I8 and a bracket column II9, which are formed into a roughly square column structure. Baking tray I5, baking tray II6 and baking tray III7 are embedded on the side walls of the bracket columns I8 and II9. The baking tray I5, baking tray II6 and baking tray III7 are formed into a roughly square disc-shaped structure. The baking tray I5, baking tray II6 and baking tray III7 are equidistantly arranged on the side walls of the bracket columns I8 and II9. A plurality of through holes are provided on door Ⅰ 22 , door Ⅱ 23 and baking tray Ⅲ 7 , which can be circular holes. A door lock mechanism is further provided between door Ⅰ 22 , door Ⅱ 23 and oven housing 1 , and the door lock mechanism includes a bolt hole Ⅰ 10 and a bolt hole Ⅱ 11 . The bolt holes Ⅰ 10 and the bolt holes Ⅱ 11 are fixed one above the other at the front end of the oven housing, and the axes of the bolt holes Ⅰ and the bolt holes Ⅱ are collinear. A vertically arranged bolt 21 that can be inserted into the bolt holes Ⅰ and the bolt holes Ⅱ is installed on door Ⅰ 22 or door Ⅱ 23 . The bolt 21 is a prior art and can be selected according to the needs of use.

[0027] A door buckle 20 is fixed on the outer wall of the middle portion of the door I 22 and the door II 23 to lock the door I 22 and the door II 23;

[0028] The heating part 16 includes an immersion nozzle baking oven, which is opposite to the rear end of the baking oven shell 1 to bake the small square billet protection slag on the baking tray I5, baking tray II6 and baking tray III7 in the baking oven shell 1.

[0029] In the novel mold powder baking device described in Example 1, an operator can unlock the door lock mechanism to open door I 22 and door II 23 when in use. The baking oven housing 1 is further equipped with an electric control box 2, a blower 3, and air vents 4. The electric control box 2 sets the blower motor speed, and the blower 3 blows hot air evenly to all parts of the baking tray. The baking moisture is released through the air vents 4, and the billet slag on the baking tray is baked.

[0030] Compared with the existing baking method, the new crystallizer powder baking device has the following advantages:

[0031] (1) Tangible Benefit I: Save baking costs and improve baking efficiency; conventional electric baking equipment has a baking power of 12KW, while the new electric control and motor used in this device have a total power of 0.5KW. The usage time of a single device is calculated based on 20 hours per day: Benefit = Number of units used * Energy saved * Usage time * Industrial electricity price

[0032] =3 units (3 continuous casting machines) * 11.5KW (12KW-0.5KW) * 7300h (20h*365 days) * 0.64 yuan / kWh = 161,200 yuan / year;

[0033] (2) Tangible Benefit II: The baking effect of the protective slag for continuous casting is guaranteed, which can effectively reduce the moisture content of the protective slag by 70%. At the same time, the unbaked protective slag and the protective slag baked in the device for 2 hours were taken. The laboratory analysis results showed that the moisture content of the unbaked protective slag was 0.7%, and the moisture content of the protective slag baked for 2 hours was 0.2%. The baked protective slag meets the requirements for continuous casting.

[0034] (3) Intangible benefits: Improve the baking effect of protective slag and reduce the hidden dangers of steel billet surface quality.

Claims

1. A new type of crystallizer powder baking device, characterized by: The oven comprises a baking oven shell, a baking portion is provided at the front end of the baking oven shell, and a heating portion is provided at the rear end of the baking oven shell; The baking section includes doors I and II hinged at the front end of the baking oven shell, and galvanized hinges I, II, III and IV are provided on the top and bottom of doors I and II. Doors I and II are hinged to the front end of the baking oven shell through galvanized hinges I, II, III and IV. A blower for blowing air into the baking oven shell is provided on the top of the baking oven shell, an electric control box is provided on the outer wall of the baking oven shell, and air holes are also provided on the baking oven shell next to the blower. Bracket columns I and II are vertically fixed on the inner side wall of the baking oven shell, baking trays I, II and III are embedded on the side walls of bracket columns I and II, and a plurality of through holes are opened on baking trays I, II and III. A door lock mechanism is also provided between doors I, II and the baking oven shell; The heating part includes an immersion nozzle baking box, which is opposite to the rear end of the baking box shell, so as to bake the small square billet protection slag on baking trays I, II and III in the baking box shell.

2. A novel mold powder baking device according to claim 1, characterized in that: The door lock mechanism includes a bolt hole I and a bolt hole II, which are fixed one above the other at the front end of the oven shell. The axes of the bolt hole I and the bolt hole II are collinear. A vertically arranged bolt that can be inserted into the bolt hole I and the bolt hole II is installed on door I or door II.

3. The novel mold powder baking device according to claim 1, characterized in that: The baking tray I, baking tray II and baking tray III are arranged equidistantly on the side walls of the bracket column I and the bracket column II.

4. The novel mold powder baking device according to claim 1, characterized in that: Roller I, roller II, roller III and roller IV are also installed on the four corners of the bottom surface of the baking oven shell.

5. The novel mold powder baking device according to claim 1, characterized in that: Door buckles for locking doors I and II are also fixedly provided on the middle outer walls of doors I and II.

Images