Oxygen-enriched blower device of steel rolling heating furnace
By designing an oxygen-rich blower device in a steel rolling heating furnace, using a motor and a thermal conductivity system to heat the gas in the bellows, combined with multi-layer filtration and recycling of waste gas, the problem of introducing strokes in the prior art is solved, and efficient heating and temperature are achieved Control improves the quality and environmental protection of steel.
Patent Information
- Application Number
- CN202420846995.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-22
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-04-22
AI Technical Summary
In the process of accelerating the air flow of the existing steel rolling furnace blower, the introduction of wind will drive the hot air in the furnace to reduce the temperature, resulting in the steel smelting not meeting the standards and may require repeated smelting.
An oxygen-rich blower device for rolling steel heating furnace is designed, including motor, volute, flange, bellows, thermal blocks, thermal copper tubes, fans, filters and recycling furnaces. The volute is driven by the motor to extract external gases and through The thermally conductive copper tube and thermally conductive fins heat the gas in the bellows. The fan is introduced into the heating furnace. The exhaust gas is recycled after being filtered through multiple layers to control the gas flow to maintain the temperature in the furnace.
It realizes efficient heating and temperature control, ensures uniform heating of steel, reduces repeated smelting caused by smelting failure, improves steel quality, reduces production costs and time, and reduces environmental pollution through multi-layer filtration systems.
Smart Images
Figure CN222143769U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of metallurgy and steelmaking, in particular to an oxygen-enriched blast device for a steel rolling heating furnace. Background Art
[0002] The shape of a large steel rolling furnace is somewhat similar to that of a tunnel kiln. The difference from a tunnel kiln is that a tunnel kiln generally has several process steps, including a preheating section, a high temperature section, a heat preservation section, and a cooling section, while a steel rolling kiln has no cooling section, only preheating, high temperature, and heat preservation. This is because steel rolling requires the steel billet to be heated to the highest temperature for rolling out of the furnace, which requires that the billet out of the steel rolling kiln is at the optimal rolling temperature. The reason for the heat preservation is that the billet is heated through the high temperature section to make the temperature inside and outside the billet consistent, so that the billet is heated more evenly.
[0003] However, some existing air blowing mechanisms introduce wind into the steel rolling heating furnace in the process of accelerating the air flow. However, in the process of introducing the wind, the wind will also drive the hot air in the furnace and reduce the temperature in the steel rolling heating furnace. This is not conducive to the heating just now. The smelted steel may not reach the ambient temperature required for smelting, which may lead to the need for repeated smelting.
[0004] Therefore, it is necessary to provide a new oxygen-enriched blast device for a steel rolling heating furnace to solve the above technical problems. Utility Model Content
[0005] In order to solve the above technical problems, the utility model provides an oxygen-enriched blast device for a steel rolling heating furnace with high thermal insulation performance.
[0006] The utility model provides an oxygen-enriched blast device for a steel rolling heating furnace, comprising a heating furnace and a blast mechanism; the blast mechanism comprises a motor, the output end of the motor is fixedly connected to a volute, the air outlet end of the volute is fixedly connected to a flange, the air outlet end of the flange is connected to a bellows, the bottom of the inner cavity of the bellows is fixedly connected to a heat-conducting block, the top of the heat-conducting block is internally provided with heat-conducting fins, the bottom of the heat-conducting block is fixedly connected to a heat-conducting copper tube, and the bottom of the bellows is fixedly connected to a water storage tank.
[0007] In order to achieve the effect of accelerating the flow of oxygen in the bellows, the utility model provides an oxygen-enriched blast device for a steel rolling heating furnace. Preferably, an isolation plate is fixedly connected to one side of the inner cavity of the bellows, and a fan is arranged inside the isolation plate.
[0008] In order to prevent debris from affecting the normal operation of the fan, the utility model provides an oxygen-enriched blast device for a steel rolling heating furnace. Preferably, a baffle is provided on the outside of the fan, and the outside of the baffle is fixedly connected to the inner wall of the isolation plate.
[0009] In order to prevent debris from entering the heating furnace and affecting the quality of steel, the utility model provides an oxygen-enriched blast device for a steel rolling heating furnace. Preferably, an air outlet is provided on one side of the bellows, a filter is provided inside the air outlet, and one side of the air outlet is connected to the bottom of the inner cavity of the heating furnace.
[0010] In order to facilitate the staff to observe the internal situation, the utility model provides an oxygen-enriched blast device for a steel rolling heating furnace. Preferably, the top of the heating furnace is connected to a recovery furnace through a pipeline, and one side of the heating furnace, the bellows and the recovery furnace are rotatably connected with a revolving door.
[0011] In order to facilitate the staff to understand the situation in the heating furnace and control the wind speed, the utility model provides an oxygen-enriched blast device for a steel rolling heating furnace. Preferably, a pressure gauge is provided on one side of the heating furnace, and a throttle valve is provided on the outer side of the flange outlet end.
[0012] In order to achieve the effect of filtering exhaust gas and reducing pollutant gas emissions, the utility model provides an oxygen-enriched blast device for a steel rolling heating furnace. Preferably, the interior of the recovery furnace is respectively provided with a first filter layer, a second filter layer and a third filter layer, and an exhaust port is provided on one side of the outside of the recovery furnace.
[0013] In order to achieve the effect of facilitating fixing and limiting, the utility model provides an oxygen-enriched blast device for a steel rolling heating furnace. Preferably, the outer sides of the first filter layer, the second filter layer and the third filter layer are fixedly connected with limiting rings, and the inner wall of the recovery furnace is provided with a slide groove used in conjunction with the limiting ring, and the outer side of the limiting ring is slidably connected to the inner wall of the slide groove.
[0014] The utility model discloses an oxygen-enriched blast device for a steel rolling heating furnace. When the heating furnace is needed to smelt steel, the staff can start the motor, the motor rotates, and the air inlet at the bottom of the volute draws the outside gas, the gas enters the volute, and is led out of the volute through the rotation of the motor output end, and is introduced into the bellows through the flange. At the same time, the heat-conducting copper pipe absorbs the temperature of the liquid, and the heat-conducting copper pipe conducts the heat to the heat-conducting fins through the heat-conducting block. The heat-conducting fins heat the temperature inside the bellows by dissipating heat. At this time, the fan discharges the heated gas through the air outlet and introduces it into the bottom of the heating furnace. The gas The exhaust gas rises from the bottom to the heating section of the heating furnace to increase the temperature of the heating section. The exhaust gas is sent to the recovery furnace through the pipeline, passes through the first filter layer, the second filter layer and the third filter layer, filters out impurities in the gas, and then is discharged from the recovery furnace. This solves the existing problem of accelerating air flow by introducing wind into the steel rolling heating furnace. However, in the process of introducing wind, the wind will also drive the hot air in the furnace and reduce the temperature in the steel rolling heating furnace, which is not conducive to the heating just now. There may be a situation where the smelted steel cannot reach the ambient temperature required for smelting, which in turn causes the problem of repeated smelting.
[0015] Compared with the prior art, the beneficial effects of the utility model are:
[0016] 1. Efficient heating and temperature control. The blast mechanism of the utility model quickly heats the external gas, improves the heating process of the steel, and maintains the stability of the temperature in the furnace, which is conducive to the uniform heating of the steel. Therefore, the smelting quality of the steel is guaranteed, the situation of repeated smelting due to substandard temperature is reduced, and production costs and time are saved.
[0017] 2. Through the design of the recovery furnace and the multi-layer filtration system in the utility model, the device can effectively purify the exhaust gas, reduce environmental pollution, and improve energy efficiency, meeting the environmental protection standards of green production.
[0018] 3. The device of the utility model is easy to operate and has strong adaptability. Gas processing can be completed through motor control, which reduces the complexity of manual operation and improves work efficiency. At the same time, it is suitable for steel rolling heating furnaces of different sizes and types and has good adaptability and compatibility. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 A structural schematic diagram of a preferred embodiment of the oxygen-enriched blast device for a steel rolling heating furnace provided by the utility model;
[0020] Figure 2 This is a structural cross-sectional view of the blow box in the utility model;
[0021] Figure 3 It is a structural cross-sectional view of the recovery furnace in the utility model;
[0022] Figure 4 for Figure 2 A schematic diagram of the enlarged structure at point A in the middle.
[0023] Numbers in the figure: 1. Heating furnace; 2. Blowing mechanism; 21. Motor; 22. Volute; 23. Flange; 24. Bellows; 25. Heat-conducting block; 26. Heat-conducting fins; 27. Heat-conducting copper tube; 28. Water storage tank; 3. Isolation plate; 4. Fan; 5. Baffle; 6. Air outlet; 7. Filter; 8. Throttle valve; 9. Turnstile; 10. Pressure gauge; 11. Recovery furnace; 12. First filter layer; 13. Second filter layer; 14. Third filter layer; 15. Limiting ring; 16. Exhaust port. DETAILED DESCRIPTION
[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0025] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.
[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0027] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 ,in Figure 1 A structural schematic diagram of a preferred embodiment of the oxygen-enriched blast device for a steel rolling heating furnace provided by the utility model; Figure 2This is a structural cross-sectional view of the blow box in the utility model; Figure 3 It is a structural cross-sectional view of the recovery furnace in the utility model; Figure 4 for Figure 2 The enlarged schematic diagram of the structure at A in the middle. The oxygen-enriched blast device of the steel rolling heating furnace comprises a heating furnace 1.
[0028] In the specific implementation process, Figure 1 , Figure 2 and Figure 4 As shown, the blowing mechanism 2 includes a motor 21, the output end of the motor 21 is fixedly connected to a volute 22, the air outlet end of the volute 22 is fixedly connected to a flange 23, the air outlet end of the flange 23 is connected to a bellows 24, the bottom of the inner cavity of the bellows 24 is fixedly connected to a heat conducting block 25, the top of the heat conducting block 25 is internally provided with heat conducting fins 26, the bottom of the heat conducting block 25 is fixedly connected to a heat conducting copper tube 27, and the bottom of the bellows 24 is fixedly connected to a water storage tank 28.
[0029] refer to Figure 1 , Figure 2 and Figure 4 As shown, an isolation plate 3 is fixedly connected to one side of the inner cavity of the wind box 24 , and a fan 4 is arranged inside the isolation plate 3 .
[0030] refer to Figure 1 , Figure 2 and Figure 4 As shown, a baffle 5 is provided on the outer side of the fan 4 , and the outer side of the baffle 5 is fixedly connected to the inner wall of the isolation plate 3 .
[0031] refer to Figure 1 , Figure 2 and Figure 4 As shown, an air outlet 6 is provided on one side of the wind box 24 , a filter screen 7 is provided inside the air outlet 6 , and one side of the air outlet 6 is connected to the bottom of the inner cavity of the heating furnace 1 .
[0032] It should be noted that the heat in the liquid is absorbed by the heat-conducting copper tube 27, and the heat is introduced into the heat-conducting fins 26 through the heat-conducting block 25. The heat-conducting fins 26 heat the gas inside the bellows 24 by heat dissipation. At this time, the gas inside the bellows 24 is introduced into the bottom of the heating furnace 1 through the air outlet 6 by setting the fan 4. The baffle 5 is set to avoid the situation where debris affects the normal operation of the fan 4 in the absence of the baffle 5. The filter net 7 is set inside the air outlet 6 to prevent debris from entering the interior of the heating furnace 1, thereby affecting the quality of the steel.
[0033] refer to Figure 1 and Figure 3 As shown, the top of the heating furnace 1 is connected to the recovery furnace 11 through a pipeline, and the heating furnace 1, the wind box 24 and one side of the recovery furnace 11 are all rotatably connected to a revolving door 9.
[0034] refer to Figure 1 and Figure 3 As shown, a pressure gauge 10 is provided on one side of the heating furnace 1, and a throttle valve 8 is provided on the outer side of the gas outlet end of the flange 23.
[0035] It should be noted that: by providing the revolving door 9, it is convenient for the staff to open the revolving door 9 regularly to detect the situation in the cavity, so as to avoid the situation where the device is closed and the components in the cavity cannot be repaired when there is no revolving door 9. By providing the pressure gauge 10 and the throttle valve 8, it is convenient for the staff to observe the gas pressure in the heating furnace 1 through the pressure gauge 10, and then control the flow rate of the gas through the throttle valve 8.
[0036] refer to Figure 1 and Figure 3 As shown, the recovery furnace 11 is provided with a first filter layer 12 , a second filter layer 13 and a third filter layer 14 , respectively, and an exhaust port 16 is provided on one side of the outside of the recovery furnace 11 .
[0037] refer to Figure 1 and Figure 3 As shown, the outer sides of the first filter layer 12, the second filter layer 13 and the third filter layer 14 are fixedly connected with the limit ring 15, the inner wall of the recovery furnace 11 is provided with a slide groove used in conjunction with the limit ring 15, and the outer side of the limit ring 15 is slidably connected with the inner wall of the slide groove.
[0038] It should be noted that: by setting the first filter layer 12, the second filter layer 13 and the third filter layer 14, it is convenient to filter the gas exhausted from the inside of the heating furnace 1, avoiding the waste gas from entering the atmosphere in the absence of a filtering structure, which not only pollutes the production environment and reduces the working environment of the staff, but also is not conducive to protecting the atmospheric environment from pollution. By setting the limit ring 15, it is convenient for the staff to regularly pull out the filtering structure for cleaning.
[0039] The working principle of the oxygen-enriched blast device for a steel rolling heating furnace provided by the utility model is as follows:
[0040] When it is necessary to use the heating furnace to smelt steel, the staff can start the motor 21, the motor 21 rotates, and the air inlet at the bottom of the volute 22 draws the outside gas, the gas enters the volute 22, and is led out of the volute 22 through the rotation of the output end of the motor 21, and is introduced into the bellows 24 through the flange 23. At the same time, the heat-conducting copper tube 27 absorbs the temperature of the liquid, and the heat-conducting copper tube 27 conducts the heat to the heat-conducting fins 26 through the heat-conducting block 25. The heat-conducting fins 26 heat the temperature of the gas inside the bellows 24 by dissipating heat. At this time, the fan 4 The heated gas is discharged through the air outlet 6. By setting the baffle 5, it is prevented that the fan 4 is stuck by debris in the absence of the baffle 5, which affects the normal operation of the fan 4. By setting the filter 7 inside the air outlet 6, it is prevented that the debris enters the interior of the heating furnace 1, thereby affecting the quality of the steel. The gas is introduced into the bottom of the heating furnace 1, and the gas rises from the bottom to the heating section of the heating furnace 1 to increase the temperature of the heating section. The exhaust gas is sent to the recovery furnace 11 through the pipeline, and passes through the first filter layer 12, the second filter layer 13 and the third filter layer 14 to filter. Impurities in the gas are removed and then discharged from the recovery furnace 11, which is convenient for filtering the gas discharged from the inside of the heating furnace 1, avoiding the exhaust gas from entering the atmosphere without a filtering structure, which not only pollutes the production environment and reduces the working environment of the staff, but also is not conducive to protecting the atmospheric environment from pollution. When it is necessary to check the production environment of the device, by setting the revolving door 9, it is convenient for the staff to regularly open the revolving door 9 to detect the situation in the cavity, avoiding the situation that the device is closed and the components in the cavity cannot be repaired when there is no revolving door 9. By setting the pressure gauge 10 and the throttle valve 8, it is convenient for the staff to observe the pressure inside the heating furnace 1 through the pressure gauge 10, and then control the flow rate of the gas through the throttle valve 8, which solves the existing problem of accelerating the flow of air and introducing wind into the steel rolling heating furnace 1. However, in the process of introducing wind, the wind will also drive the hot air in the furnace and reduce the temperature in the steel rolling heating furnace 1 at the same time, which is not conducive to the situation just heated. There may be a situation where the smelted steel cannot reach the ambient temperature required for smelting, which causes the problem of repeated smelting.
[0041] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.
Claims
1. An oxygen-enriched blast device for a steel rolling heating furnace, characterized in that: include: Heating furnace (1); A blower mechanism (2), the blower mechanism (2) comprising a motor (21), the output end of the motor (21) being fixedly connected to a volute (22), the air outlet end of the volute (22) being fixedly connected to a flange (23), the air outlet end of the flange (23) being connected to a bellows (24), the bottom of the inner cavity of the bellows (24) being fixedly connected to a heat conduction block (25), the top of the heat conduction block (25) being provided with heat conduction fins (26), the bottom of the heat conduction block (25) being fixedly connected to a heat conduction copper tube (27), and the bottom of the bellows (24) being fixedly connected to a water storage tank (28).
2. The oxygen-enriched blast device for a steel rolling heating furnace according to claim 1, characterized in that: An isolation plate (3) is fixedly connected to one side of the inner cavity of the wind box (24), and a fan (4) is arranged inside the isolation plate (3).
3. The oxygen-enriched blast device for a steel rolling heating furnace according to claim 2, characterized in that: A baffle (5) is provided on the outer side of the fan (4), and the outer side of the baffle (5) is fixedly connected to the inner wall of the isolation plate (3).
4. The oxygen-enriched blast device for a steel rolling heating furnace according to claim 1, characterized in that: An air outlet (6) is provided on one side of the wind box (24), a filter screen (7) is provided inside the air outlet (6), and one side of the air outlet (6) is connected to the bottom of the inner cavity of the heating furnace (1).
5. The oxygen-enriched blast device for a steel rolling heating furnace according to claim 1, characterized in that: The top of the heating furnace (1) is connected to a recovery furnace (11) via a pipeline, and a revolving door (9) is rotatably connected to one side of the heating furnace (1), the wind box (24) and the recovery furnace (11).
6. The oxygen-enriched blast device for a steel rolling heating furnace according to claim 1, characterized in that: A pressure gauge (10) is provided on one side of the heating furnace (1), and a throttle valve (8) is provided on the outer side of the gas outlet end of the flange (23).
7. The oxygen-enriched blast device for a steel rolling heating furnace according to claim 5, characterized in that: A first filter layer (12), a second filter layer (13) and a third filter layer (14) are respectively arranged inside the recovery furnace (11), and an exhaust port (16) is arranged on one side outside the recovery furnace (11).
8. The oxygen-enriched blast device for a steel rolling heating furnace according to claim 7, characterized in that: The outer sides of the first filter layer (12), the second filter layer (13) and the third filter layer (14) are all fixedly connected to a limiting ring (15); the inner wall of the recovery furnace (11) is provided with a slide groove used in conjunction with the limiting ring (15); the outer side of the limiting ring (15) is slidably connected to the inner wall of the slide groove.