Crystallizer heating device
By introducing heat insulation chambers and protective chambers into the crystallizer heating device, combined with electric heating pipes, the equipment damage problem under high temperature conditions is solved, stable control and safe protection of heating temperature is achieved, and the quality of casting and equipment reliability is improved. sex.
Patent Information
- Application Number
- CN202421095155.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-20
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-05-20
AI Technical Summary
The existing crystallizer heating devices are prone to exceed the temperature range of the heating devices under high temperature conditions, resulting in equipment damage and potential hazards, and lack of protective measures.
A crystallizer heating device including a heater, an insulating chamber, a heating tube and a protective chamber is designed to provide fast and efficient heating through an electric heating tube, and to prevent overheating and Dry burning to ensure safe and reliable operation of the equipment.
Effectively control the heating temperature, ensure the stability and safety of the crystallization process, extend the service life of the equipment, improve the quality and heating efficiency of the casting billet, and reduce energy consumption.
Smart Images
Figure CN222288739U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of metallurgy, in particular to a crystallizer heating device. Background Art
[0002] In the field of metallurgy, a crystallizer usually refers to a device used to prepare metal or alloy grains. These devices play a vital role in the metallurgical process because the size, shape and distribution of the grains directly affect the performance and characteristics of the material.
[0003] The heating device of the crystallizer is a vital component in the field of metallurgy. The heating device is usually used to control the temperature inside the crystallizer to ensure that the metal or alloy solidifies and crystallizes within the appropriate temperature range to form the desired grain structure.
[0004] In the patent "A Crystallizer Molten Steel Shrinkage Feeding Induction and Heating Device" (publication number CN217798857U, hereinafter referred to as prior art 1), a crystallizer heating device is disclosed. The heating device in prior art 1 adopts an induction heater, and the heater is extended into the molten steel to be crystallized in the crystallizer; a lifting mechanism is used to control the position of the heating device; because in the metallurgical industry, this heating method is to heat close to the heat source, and because the temperature of the molten steel in the crystallizer is very high, it is easy to exceed the temperature that the heating device can withstand under high temperature conditions, causing damage to the heating device, and there may also be potential dangers, and it is not protected in prior art 1. Utility Model Content
[0005] In view of this, an embodiment of the utility model provides a crystallizer heating device to solve the problem in the prior art that when the heating device faces high temperature conditions, the temperature may exceed the temperature range that the heating device can withstand, causing the heating device to fail to work normally.
[0006] In the first aspect, an embodiment of the utility model provides a crystallizer heating device, comprising a heater; the crystallizer comprises a crystallizer, and a cavity is provided between the crystallizer and the inner wall of the crystallizer; the heater is connected to the interior of the cavity between the crystallizer and the inner wall of the crystallizer through a heating pipe; the heater is provided with an insulating cavity between the inner surface and the outer surface; the cavity within the inner wall of the heater is a heating cavity, and a plurality of heating tubes are provided in the heating cavity; a steam outlet and a protective cavity are respectively provided at both ends of the interior of the heater; a condensation port is provided in the protective cavity; a connecting pipe is provided in the protective cavity; the connecting pipe connects the heating cavity of the heater with the protective cavity; the plurality of heating tubes pass through the connecting pipe and enter the protective cavity; only one heating tube is provided in each connecting tube; condensation water is introduced into or drawn out of the protective cavity through the condensation port.
[0007] Preferably, the heating tube is an electric heating tube; a power line of the electric heating tube is electrically connected to the heating tube through the protection cavity.
[0008] Preferably, the protection cavity is arranged at the bottom of the heater; the heating cavity is arranged above the protection cavity; at least one group of protection layer plates are arranged at the connection between the protection cavity and the heating cavity; a group of the protection layer plates are arranged at intervals on the connecting pipe.
[0009] Preferably, fixed plates are evenly spaced in the heating chamber, and the fixed plates are staggered on the inner wall of the heating chamber; a plurality of the heating tubes are reciprocatingly arranged and their positions are limited by the fixed plates.
[0010] Preferably, the outer surface of the heating chamber body of the heater is provided with a steam outlet flange which penetrates the interior of the heating chamber; the heater is connected to an external steam component and communicated with the heating chamber via the steam outlet flange.
[0011] Preferably, a steam outlet flange is provided on the top of the heating chamber; the heater is connected to the steam outlet flange through a heating pipe to transport steam to the cavity between the crystallization tank and the inner wall of the crystallizer, and wraps the crystallization tank.
[0012] Preferably, a circulation pump is provided at the bottom of the heater; the circulation pump is connected to the condensation port through a condensation port flange.
[0013] Preferably, the body of the heater comprises a protection tank body, a heating tank body and an outlet tank body; the protection tank body and the heating tank body are connected via a flange; the heating tank body and the outlet tank body are connected via a flange.
[0014] Preferably, the heater is further provided with a pair of mounting seats arranged at intervals on the outer surface of the heating tank body; the mounting seats are arranged in a rectangular seat, and mounting holes are provided at the bottom of the mounting seats.
[0015] Preferably, the heater is provided with a pair of hoisting fasteners on the other side of the heating tank body where the mounting seat is provided; and the pair of hoisting fasteners are both provided with hoisting holes.
[0016] The crystallizer heating device provided by the utility model has the following beneficial effects:
[0017] Using electric heating tubes as heating sources can provide fast and efficient heating, which helps to accelerate the crystallization process. The heater is equipped with an insulating cavity inside, which can effectively control the temperature inside the heating cavity, ensure the temperature stability during the crystallization process, facilitate product quality control, and better protect the heater. It can also protect the safety of the power cord of the heating tube, so that the heating tube can work normally and safely. The structural design of the crystallizer heating device is reasonable, and the heating tube and the protective cavity inside the heater have taken effective safety measures to ensure the safety and reliability of the equipment during operation. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the following is a brief introduction to the drawings required for use in the embodiment of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work, and these are all within the protection scope of the utility model.
[0019] Figure 1 It is a schematic diagram of the coordination between the heater and the crystallizer;
[0020] Figure 2 It is a schematic diagram of the external structure of the heater;
[0021] Figure 3 It is a cross-sectional view of the internal structure of the heater;
[0022] Parts and numbers in the picture:
[0023] 10-crystallizer, 11-crystallization tank; 20-heater, 21-heating pipe, 22-inner surface, 23-outer surface, 24-insulation chamber, 25-heating chamber, 251-heating pipe, 26-protection chamber, 261-condensation port, 262-connecting pipe, 263-condensed water, 27-steam outlet, 29-protective layer plate, 30-fixing plate, 31-steam port flange, 32-steam outlet flange, 33-circulating pump, 35-protection tank body, 36-heating tank body, 37-export tank body, 381-first connecting flange, 382-second connecting flange, 39-mounting seat, 40-lifting fasteners. DETAILED DESCRIPTION
[0024] In order to make the purpose, technical scheme and advantages of the embodiment of the utility model clearer, the technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. It should be noted that, in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. In the description of the utility model, it should be understood that the orientation or position relationship indicated by the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the utility model. Moreover, the terms "comprises", "includes" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprises..." do not exclude the presence of other identical elements in the process, method, article or device including the elements. If there is no conflict, the embodiments of the utility model and the various features in the embodiments can be combined with each other, all within the scope of protection of the utility model.
[0025] Example 1
[0026] See also Figure 1The embodiment of the utility model provides a crystallizer heating device, including a heater 20; the crystallizer 10 includes a crystallizer 11, and a cavity is provided between the crystallizer 11 and the inner wall of the crystallizer 10; the heater 20 is connected to the cavity between the crystallizer 11 and the inner wall of the crystallizer 10 through a heating pipe 21; the heater 20 generates a large amount of steam after the external condensed water 263 contacts the internal heated part, and then transports the steam to the outside of the crystallizer 10 of the crystallizer, and wraps the crystallizer 11 to heat it. The molten steel will be cooled in the crystallizer 11 of the crystallizer 10, and protective slag will be formed on the outer surface 23 of the molten steel during cooling. However, the cooling speed cannot be too fast, otherwise it will adhere to the inner wall of the crystallizer 11, and leakage will occur when the molten steel flows out after adhesion. The heat preservation and thermal insulation are increased by the heater 20. The protective slag can cover the surface of the molten steel to form a layer of liquid slag, which can effectively isolate the contact between the molten steel and the air to prevent the secondary oxidation of the molten steel. At the same time, the heat-insulating and heat-preserving properties of the protective slag reduce the heat loss of the molten steel, which helps to maintain the temperature of the crystallizer 10, thereby reducing the formation of bridges and crusts. The effective formation of protective slag can form a slag film between the wall of the crystallizer 10 and the billet shell. This slag film has a lubricating effect, which can reduce the resistance to billet drawing and prevent adhesion between the billet shell and the copper plate. The protective slag can also absorb and dissolve non-metallic inclusions that float from the molten steel to the slag interface, thereby purifying the molten steel. The protective slag fills the air gap between the billet shell and the crystallizer 10, improves the heat transfer effect of the crystallizer 10, and makes the billet shell grow more uniformly. It is very necessary to form protective slag in the crystallization tank 11, and the design factors of the heater 20 are considered to ensure the smooth progress of the crystallization process and improve the quality of the ingot.
[0027] See also Figure 3The heater 20 is provided with an insulating cavity 24 between the inner surface 22 and the outer surface 23. The insulating cavity 24 is used to prevent the heat in the heater 20 from being lost through heat conduction between the shell and the heater 20, and also to prevent accidents caused by excessive internal pressure of the heater 20 after the shell is heated. The cavity inside the inner wall of the heater 20 is a heating cavity 25. A plurality of heating pipes 251 are arranged in the heating cavity 25. A spacing distance is provided between the heating pipes 251 and the inner wall of the heating cavity 25 to avoid direct contact. The heat pipes are arranged inside the heating cavity 25, and directly contact with the condensed water 263 during operation, and generate a large amount of steam. The two ends of the interior of the heater 20 are respectively provided with a steam outlet 27 and a protective cavity 26. The protective cavity 26 is used to protect the heating pipe 251 and the condensed water 263 from generating excessive steam, which causes the internal pressure of the heater 20 to increase. It can also protect the power cord of the heating pipe 251 from continuous power supply and normal operation, and is not easy to be damaged. The protection chamber 26 is provided with a condensation port 261; a connecting pipe 262 is provided in the protection chamber 26; the connecting pipe 262 connects the heating chamber 25 of the heater 20 with the protection chamber 26; the plurality of heating tubes 251 pass through the connecting pipe 262 and enter the protection chamber 26; each of the connecting pipes 262 is provided with only one heating tube 251; condensed water 263 is introduced into or led out of the protection chamber 26 through the condensation port 261. The condensed water 263 in the protection chamber 26 is used to release the condensed water 263 in the heating chamber 25 in an emergency, reduce the temperature of the heating tube 251, and avoid the condensed water 263 from continuously contacting the heating tube 251, causing the pressure inside the condensed water 263 to be too high. The temperature of the protection chamber 26 can be suppressed below the required temperature, thereby ensuring that the insulated wire of the power supply is not damaged by high temperature, and at the same time significantly reducing heat loss, with obvious energy-saving effect, simple structure, and low manufacturing cost.
[0028] See also Figure 3 The heating tube 251 is an electric heating tube; the power line of the electric heating tube is electrically connected to the heating tube through the protection cavity 26. The power line of the electric heating tube passes through the protection cavity 26 and is electrically connected to the electric heating tube. The connecting tube 262 is used to isolate the temperature of the heating tube 251 so that the temperature inside the protection cavity 26 is normal and will not be heated to generate a large amount of steam, causing the internal temperature to rise. The power line of the heating tube 251 can be protected from damage by the constant internal temperature.
[0029] Preferably, the protection chamber 26 is arranged at the bottom of the heater 20; the heating chamber 25 is arranged above the protection chamber 26; at least one group of protection plates 29 is arranged at the connection between the protection chamber 26 and the heating chamber 25; a group of the protection plates 29 is arranged at intervals on the connecting pipe 262; the protection plates 29 are used to fix the connecting pipe 262 and divide the protection chamber 26 into a plurality of chambers, and the condensed water 263 protects the power line of the heating tube 251 through the plurality of chambers. The heating chamber 25 is provided with fixed plates 30 at uniform intervals, and the fixed plates 30 are staggered on the inner wall of the heating chamber 25; a plurality of the heating tubes 251 are reciprocated and their positions are limited by the fixed plates 30. If the heating tubes 251 are in contact with each other, dry burning will occur between the two, which will damage the heating tubes 251. The fixed plates 30 are used to fix the plurality of heating tubes 251 at intervals, so that they cannot contact with other heating tubes 251, and the heating work is maintained normally.
[0030] Preferably, the outer surface 23 of the heating chamber 25 of the heater 20 is provided with a steam outlet flange 31 that penetrates the interior of the heating chamber 25; the heater 20 is connected to the external steam component and connected to the heating chamber 25 through the steam outlet flange 31. The steam outlet flange 31 can be used to add steam to the interior of the heater 20, or to discharge steam, to help the interior of the heater 20 maintain a stable pressure state and work safely. A steam outlet flange 32 is provided at the top of the heating chamber 25; the heater 20 is connected to the steam outlet flange 32 through the heating pipe 21 to transport steam to the cavity between the crystallizer 11 and the inner wall of the crystallizer 10, and wrap the crystallizer 11. A circulating pump 33 is provided at the bottom of the heater 20; the circulating pump 33 is connected to the condensation port 261 through the flange provided at the condensation port 261. The condensed water 263 is transported by the circulating pump 33. The body of the heater 20 includes a protective tank 35, a heating tank 36 and an outlet tank 37; the protective tank 35 and the heating tank 36 are connected by a first connecting flange 381; the heating tank 36 and the outlet tank 37 are connected by a second connecting flange 382. The heater 20 is also provided with a pair of spaced mounting seats 39 on the outer surface 23 of the heating tank 36; see Figure 2 The mounting seat 39 is arranged in a rectangular shape, and a mounting hole is arranged at the bottom of the mounting seat 39. The heater 20 is provided with a pair of hanging fasteners 40 on the other side of the heating tank body 36 where the mounting seat 39 is arranged; and a pair of hanging fasteners 40 are provided with hanging holes. The hanging fasteners 40 are used to install and fix the heater 20.
[0031] Furthermore, there is a cavity between the heating tubes 251, and the cavity is used for the condensed water 263 to circulate and generate steam, so that the steam also floats up and is output in the cavity; the cavity can also be used for cleaning when the heater 20 stops working, and the cleaning liquid circulates from the cavity to cover each pipe of the heater 20.
[0032] Example 2
[0033] See also Figure 3 , the embodiment of the utility model provides a crystallizer heating device, a crystallizer heating device has the following beneficial effects; the cooling rate can also be controlled by setting a protective chamber, and the device heats the crystallizer 11 through the heater 20, which can effectively control the cooling rate of the molten steel in the crystallizer 11. This helps to ensure that the molten steel forms a uniform crystal structure during the crystallization process and improves the quality of the ingot. By controlling the cooling rate, the device can form a layer of protective slag on the surface of the molten steel. This layer of protective slag can isolate the contact between the molten steel and the air, prevent the secondary oxidation of the molten steel, and thus improve the surface quality of the ingot. An insulating cavity 24 is provided between the inner and outer surfaces 23 of the heater 20, which can effectively reduce heat loss during the heating process, improve heating efficiency, and save energy costs. The protective cavity 26 arranged inside the device is used to release condensed water 263 and reduce the internal temperature of the heater 20, thereby protecting the power cord of the heating tube 251 from being damaged by high temperature and extending the service life of the equipment. The setting of the fixed plate 30 effectively prevents dry burning between the heating tubes 251, protects the heating tubes 251 from damage, and ensures the normal heating work. Please refer to Figure 2 The design takes into account the structure of the heater 20 body, including the mounting seat 39 and the hanging fastener 40, so that the device is more convenient and quick during installation and maintenance. The embodiment of the crystallizer 10 heating device has multiple beneficial effects such as controlling the cooling speed, forming protective slag, reducing heat loss, protecting the power line, preventing dry burning, and facilitating installation and maintenance, which can effectively improve the quality of the ingot and improve the reliability and use efficiency of the equipment.
[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.
Claims
1. A crystallizer heating device, characterized in that: The crystallizer (10) comprises a heater (20); the crystallizer (10) comprises a crystallizer (11), and a cavity is provided between the crystallizer (11) and the inner wall of the crystallizer (10); the heater (20) is connected to the interior of the cavity between the crystallizer (11) and the inner wall of the crystallizer (10) through a heating pipe (21); The heater (20) is provided with a heat-insulating cavity (24) between an inner surface (22) and an outer surface (23); a cavity within the inner wall of the heater (20) is a heating cavity (25), and a plurality of heating tubes (251) are provided in the heating cavity (25); a steam outlet (27) and a protective cavity (26) are respectively provided at two ends inside the heater (20); and the protective cavity (26) is provided with a condensation port (261); A connecting pipe (262) is provided in the protection cavity (26); the connecting pipe (262) connects the heating cavity (25) of the heater (20) with the protection cavity (26); the plurality of heating pipes (251) pass through the connecting pipe (262) and enter the protection cavity (26); only one heating pipe (251) is provided in each connecting pipe (262); condensed water (263) is introduced into or led out of the protection cavity (26) through the condensation port (261).
2. A crystallizer heating device according to claim 1, characterized in that: The heating tube (251) is an electric heating tube; a power line of the electric heating tube is electrically connected to the heating tube (251) through the protection cavity (26).
3. A crystallizer heating device according to claim 1, characterized in that: The protection chamber (26) is arranged at the bottom of the heater (20); the heating chamber (25) is arranged above the protection chamber (26); at least one group of protection layer plates (29) is arranged at the connection between the protection chamber (26) and the heating chamber (25); a group of the protection layer plates (29) is arranged at intervals on the connecting pipe (262).
4. A crystallizer heating device according to claim 1, characterized in that: Fixed plates (30) are evenly spaced in the heating chamber (25), and the fixed plates (30) are staggeredly arranged on the inner wall of the heating chamber (25); a plurality of heating tubes (251) are reciprocatingly arranged and their positions are limited by the fixed plates (30).
5. A crystallizer heating device according to claim 4, characterized in that: The outer surface (23) of the heating chamber (25) of the heater (20) is provided with a steam outlet flange (31) that penetrates the interior of the heating chamber (25); the heater (20) is connected to an external steam component and communicated with the heating chamber (25) via the steam outlet flange (31).
6. A crystallizer heating device according to claim 1, characterized in that: A steam outlet flange (32) is provided at the top of the heating chamber (25); the heater (20) is connected through a heating pipe (251) (21) and the steam outlet flange (32) to transport steam to the cavity between the crystallization tank (11) and the inner wall of the crystallizer (10), and wrap the crystallization tank (11).
7. A crystallizer heating device according to claim 6, characterized in that: A circulation pump (33) is provided at the bottom of the heater (20); the circulation pump (33) is connected to the condensation port (261) through the condensation port (261) flange.
8. A crystallizer heating device according to claim 1, characterized in that: The body of the heater (20) comprises a protective tank body (35), a heating tank body (36) and an outlet tank body (37); the protective tank body (35) and the heating tank body (36) are connected via a first connecting flange (381); and the heating tank body (36) and the outlet tank body (37) are connected via a second connecting flange (382).
9. The device according to claim 8, characterized in that The heater (20) is further provided with a pair of mounting seats (39) arranged at intervals on the outer surface (23) of the heating tank body (36); the mounting seats (39) are arranged in a rectangular seat, and a mounting hole is provided at the bottom of the mounting seats (39).
10. A crystallizer heating device according to claim 9, characterized in that: The heater (20) is provided with a pair of hanging fasteners (40) on the other side of the heating tank body (36) where the mounting seat (39) is provided; and the pair of hanging fasteners (40) are both provided with hanging holes.