Iron mixing auxiliary device of metal mixer
By designing an iron mixing furnace auxiliary device including displacement device, flow guide device and dust removal device, the existing iron mixing furnace has solved the problem of smoke accidents and frequent replacement of the top iron port during the iron mixing process, improving operational safety and reducing production costs.
Patent Information
- Application Number
- CN202421261780.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-04
- Publication Date
- 2025-03-07
- Estimated Expiration
- 2034-06-04
AI Technical Summary
The existing iron mixing furnace has the risk of smoke accidents during the iron mixing process, and the frequent replacement of the top iron port increases production costs, affecting operational safety and smelting effect.
An iron mixing furnace iron auxiliary device is designed, including a displacement device, a flow guide device and a dust removal device. The displacement device is controlled by a control mechanism to drive the flow guide device to move relative to the iron mixing furnace. The flow guide device includes an inclined flow guide box and a flow guide nozzle. The dust removal device is arranged above the rear of the flow guide device to prevent the splashing of molten iron and improve the dust removal effect.
The iron remix operation is realized on one side of the iron mixing furnace, which improves the safety of the iron remix operation, avoids the problem of frequent replacement of the top iron remix port, reduces production costs, and facilitates maintenance and care.
Smart Images
Figure CN222574684U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of steelmaking equipment, and in particular relates to an iron-adding auxiliary device for an iron-mixing furnace. Background Art
[0002] The mixing furnace plays an important role in steel production. It is mainly responsible for temporarily storing and mixing molten iron. It is a key equipment between smelting processes such as blast furnaces and converters. However, in the actual application of the existing mixing furnace, there are still some technical problems that need to be solved. First, during the iron mixing process, the top cover of the mixing furnace will block half of the dust hood after opening, thereby affecting the smoke extraction effect, which may lead to smoke accidents. It will not only seriously affect the air quality of the production environment, but also may cause safety accidents and threaten the health of operators. Secondly, the design of the mixing furnace is usually a lying cylinder, and the iron mixing mouth is located directly above the furnace body. During the iron mixing process, the tilting device allows the molten iron to flow down from the molten iron tank. At this time, the molten iron will directly wash the inner wall of the mixing furnace, resulting in increased wear of the refractory materials on the inner wall, reducing the service life of the refractory materials, which not only increases the cost of maintaining and replacing refractory materials, but also may affect the stability of the furnace body and the smelting effect. Finally, the top iron mixing mouth usually adopts a single structure and needs to be replaced after a period of use. Frequent replacement of the top iron mixing mouth will increase production costs and reduce production efficiency.
[0003] Therefore, there is a need for an auxiliary device for iron adding in a mixing furnace that can improve the safety of iron adding operation and avoid frequent replacement of the top iron adding port. Utility Model Content
[0004] The utility model aims to provide an auxiliary device for adding iron to an iron mixing furnace, which can realize the iron adding operation on one side of the iron mixing furnace, improve the safety of the iron adding operation, effectively solve the problem of frequent replacement of the iron adding port on the top of the iron mixing furnace, and facilitate maintenance and care.
[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:
[0006] An auxiliary device for adding iron to an iron mixing furnace comprises a displacement device controlled by a control mechanism and arranged between the iron mixing furnace and a molten iron tank, a flow guide device arranged on the displacement device and corresponding to an inlet on one side of the iron mixing furnace, and a dust removal device arranged above the flow guide device; the flow guide device comprises a flow guide box arranged on the displacement device and provided with an outlet on a side wall of a side close to the iron mixing furnace, and a flow guide nozzle with one end connected to the outlet of the flow guide box and the other end adapted to the inlet of the iron mixing furnace, and an iron adding opening is opened on the top of the flow guide box.
[0007] A further improvement of the technical solution of the utility model is that the side wall of the guide box close to the molten iron ladle is tilted outwards, and the tilt angle is α, 30°≤α≤60°.
[0008] A further improvement of the technical solution of the utility model is that a limit strip is horizontally arranged on the inclined side wall of the guide box, a transition plate is obliquely arranged inside the guide box, one end of the transition plate is clamped on the limit strip and the other end is pressed against the bottom of the outlet of the guide box, and the inclination angle is β, 15°≤β≤30°.
[0009] A further improvement of the technical solution of the utility model is that a splash plate is arranged on the top of the guide box in the opposite direction of the inclination of the transition plate and the splash plate is located on the side of the iron mixing port close to the iron mixing furnace, and a plurality of drainage grooves are evenly spaced on the inclined surface of the splash plate.
[0010] A further improvement of the technical solution of the utility model is that the dust removal device includes a dust removal hood arranged above the rear of the iron mixing mouth, a dust removal pipe connected to the dust removal hood, and a baffle arranged on the dust removal hood, the baffle being a semi-enclosed structure, respectively located on the top of the dust removal hood and on one side thereof close to the iron mixing furnace.
[0011] A further improvement of the technical solution of the utility model is that the displacement device includes a platform arranged at the bottom of the guide box, rollers symmetrically arranged at the bottom of the platform and controlled by a control mechanism, and tracks symmetrically arranged at the bottom of the rollers.
[0012] Due to the adoption of the above technical solution, the technical progress achieved by the utility model is:
[0013] The utility model discloses an iron-adding auxiliary device for an iron-mixing furnace, which can realize the iron-adding operation on one side of the iron-mixing furnace, improves the safety of the iron-adding operation, effectively solves the problem of frequently replacing the iron-adding opening on the top of the iron-mixing furnace, and is convenient for maintenance and care.
[0014] The utility model adopts a displacement device and a flow guide device that cooperate with each other are arranged between the iron mixing furnace and the molten iron tank. Under the control of the control mechanism, the displacement device can drive the flow guide device to move relative to the iron mixing furnace, and the flow guide device can be communicated with the iron mixing furnace, so as to realize the iron adding operation on one side of the iron mixing furnace, improve the safety of the iron adding operation, avoid frequent replacement of the top iron adding port of the iron mixing furnace, and effectively save economic costs.
[0015] The flow guide device adopted by the utility model comprises a flow guide box with an iron adding opening on the top and a flow guide nozzle arranged on the flow guide box and adapted to the inlet on one side of the iron mixing furnace. Under the control of the control mechanism, the displacement device can drive the flow guide device to move relative to the iron mixing furnace, so that the flow guide nozzle extends into the inlet on one side of the iron mixing furnace, so that the flow guide box is communicated with the interior of the iron mixing furnace through the flow guide nozzle. When the molten iron tank pours molten iron from the iron adding opening of the flow guide box, the molten iron flows from the flow guide box through the flow guide nozzle into the interior of the iron mixing furnace, thereby achieving the purpose of performing iron adding operation on one side of the iron mixing furnace.
[0016] The utility model adopts a transition plate which is inclinedly arranged in the guide box, and one end of the transition plate is clamped on the limit bar and the other end is pressed against the outlet bottom of the guide box. When the molten iron tank pours molten iron into the guide box from the iron adding port, the inclined transition plate can play a role of drainage, so that the molten iron can flow smoothly from the inside of the guide box into the guide nozzle.
[0017] The side wall of the guide box adopted by the utility model is inclined outwardly near the side of the molten iron tank, and cooperates with the splash plate at the top of the guide box located at the side of the iron mixing port near the iron mixing furnace, which effectively prevents the molten iron from splashing out of the guide box 3 when it is poured. At the same time, the splash plate can also effectively prevent the molten iron tank 2 from pouring too violently and causing a large amount of molten iron to overflow, thereby avoiding injuries to surrounding operators and improving the safety of iron mixing operations.
[0018] The utility model adopts a dust removal cover arranged at the upper rear of the iron exchange port of the guide box, and the baffle on the dust removal cover is a semi-enclosed structure, which can neither affect the pouring of molten iron from the molten iron tank nor ensure the dust removal effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a structural schematic diagram of the iron-adding auxiliary device of the utility model;
[0020] Figure 2 It is a structural schematic diagram of the flow guide device in the iron mixing auxiliary device of the utility model;
[0021] Among them, 1. mixing iron furnace, 2. molten iron tank, 3. guide box, 31. guide nozzle, 32. iron exchange port, 33. outlet, 34. limit strip, 35. transition plate, 36. splash plate, 37. drainage trough, 4. dust hood, 5. dust removal duct, 6. baffle, 7. platform, 8. roller, 9. track. DETAILED DESCRIPTION
[0022] The present invention is further described in detail below in conjunction with the embodiments:
[0023] like Figure 1 and Figure 2As shown, the utility model provides an auxiliary device for iron mixing in an iron mixing furnace, including a displacement device, a guide device and a dust removal device that cooperate with each other. The displacement device is arranged between the iron mixing furnace 1 and the molten iron tank 2, that is, located on one side of the iron mixing furnace 1. The guide device is arranged on the displacement device and corresponds to the inlet opened on one side of the iron mixing furnace 1. The dust removal device is arranged on the upper rear of the guide device. The displacement device is controlled by a control mechanism to drive the guide device to move relative to the iron mixing furnace 1. Specifically, the guide device includes a guide box 3 with an iron mixing port 32 opened on the top and a guide nozzle 31. The guide box 3 is arranged on the displacement device. An outlet 33 is provided on the side wall of the guide box 3 close to the iron mixing furnace 1. One end of the guide nozzle 31 is connected to the outlet 33 of the guide box, and the other end thereof is adapted to the inlet on one side of the iron mixing furnace 1. When the displacement device drives the guide box 3 to move relative to the mixing furnace 1 under the control of the control mechanism, the guide nozzle connected to the outlet 33 of the guide box can extend into the inlet on one side of the mixing furnace 1. At this time, the guide box 3 and the interior of the mixing furnace 1 are connected to each other. When the molten iron tank 2 pours molten iron from the iron adding port 32 of the guide box 3, the molten iron flows from the guide box 3 through the guide nozzle 31 into the interior of the mixing furnace 1, thereby achieving the purpose of performing iron adding operation on one side of the mixing furnace 1.
[0024] In order to prevent the molten iron from splashing outward when the molten iron tank 2 is poured into the guide box 3, the side wall of the guide box 3 close to the molten iron tank 2 is tilted outward, that is, tilted toward the side of the molten iron tank 2, and its tilt angle is α. Too large or too small tilt angle is not conducive to splash prevention, so 30°≤α≤60°. At the same time, a limit bar 34 is also horizontally arranged on the inclined side wall, and a transition plate 35 is tilted inside the guide box 3. One end of the transition plate 35 is clamped on the limit bar 34, and the other end is tightly pressed against the bottom of the outlet 33 of the guide box. Since the tilt angle of the transition plate 35 is related to the tilt angle α of the inclined side wall of the guide box 3, the tilt angle of the transition plate 35 is β, 15°≤β≤30°. When the molten iron tank 2 pours the molten iron from the iron port 32 into the guide box 3, the inclined transition plate 35 can play a role in drainage, so that the molten iron flows smoothly from the inside of the guide box 3 into the guide nozzle 31, and then flows into the inside of the iron mixing furnace 1.
[0025] A splash plate 36 is also provided on the top of the guide box 3 in the opposite direction of the inclination of the transition plate 35. The splash plate 36 is located on the side of the iron mixing port 32 close to the iron mixing furnace 1. A number of drainage grooves 37 are evenly spaced on the inclined surface of the splash plate 36. Such a splash plate 36 structure can effectively prevent the molten iron tank 2 from tipping too violently and causing a large amount of molten iron to overflow. When the molten iron overflows onto the splash plate 36, the drainage grooves 37 on the splash plate 36 can quickly guide the molten iron into the guide box 3. At the same time, the splash plate 36 cooperates with the inclined side walls of the guide box 3. Since the two are inclined in opposite directions, the splash protection effect is better, which can effectively avoid harm to the surrounding operators and improve the safety of the iron mixing operation.
[0026] The dust removal device includes a dust hood 4 arranged above and behind the iron exchange port 32, a dust removal pipe 5 connected to the dust hood 4, and a baffle 6 arranged on the dust hood 4. The baffle 6 is a semi-enclosed structure, that is, the baffle 6 is a two-piece structure, which is respectively located on the top of the dust hood 4 and on one side thereof close to the iron mixing furnace 1. This does not affect the pouring of molten iron from the molten iron tank 2 and can ensure the dust removal effect.
[0027] The displacement device includes a platform 7 arranged at the bottom of the guide box 3, rollers 8 symmetrically arranged at the bottom of the platform 7 and controlled by a control mechanism, and tracks 9 symmetrically arranged at the bottom of the rollers 8. Under the control of the control mechanism, the platform 7 can drive the guide box 3 to move along the track 9 relative to the mixing furnace 1. The control mechanism can be an electric motor or other device that can provide power to the rollers 8.
[0028] During operation, the dust removal device is started, and then the control mechanism controls the displacement device to drive the guide box 3 to move a certain distance relative to the mixing furnace 1 so that the guide nozzle 31 on the guide box 3 extends into the side entrance of the mixing furnace 1, the molten iron tank 2 is overturned, and the molten iron is poured from the iron adding port 32 on the top of the guide box 3. After the molten iron enters the guide box 3, it is drained into the guide nozzle 31 through the transition plate 35, and then enters the interior of the mixing furnace 1 through the guide nozzle 31, thereby completing the iron adding operation from one side of the mixing furnace. After the iron adding is completed, the displacement device is controlled to drive the guide box 3 away from the mixing furnace 1 so that the guide nozzle 31 withdraws from the side entrance of the mixing furnace 1, and the next related operation is performed after the entrance of the mixing furnace 1 is closed.
[0029] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.
Claims
1. An auxiliary device for adding iron to a mixing furnace, characterized in that: The invention comprises a displacement device controlled by a control mechanism and arranged between an iron mixing furnace (1) and a molten iron tank (2), a flow guide device arranged on the displacement device and corresponding to an inlet on one side of the iron mixing furnace (1), and a dust removal device arranged above the flow guide device; the flow guide device comprises a flow guide box (3) arranged on the displacement device and provided with an outlet (33) on a side wall close to the iron mixing furnace (1), and a flow guide nozzle (31) having one end connected to the outlet (33) of the flow guide box and the other end adapted to the inlet of the iron mixing furnace (1); and an iron mixing port (32) is provided on the top of the flow guide box (3).
2. The iron-adding auxiliary device for an iron-mixing furnace according to claim 1, characterized in that: The side wall of the flow guide box (3) close to the molten iron ladle (2) is tilted outwards, and its tilt angle is α, 30°≤α≤60°.
3. The iron-adding auxiliary device for an iron-mixing furnace according to claim 2, characterized in that: A limit strip (34) is horizontally arranged on the inclined side wall of the guide box (3), and a transition plate (35) is inclinedly arranged inside the guide box (3), and one end of the transition plate (35) is clamped on the limit strip (34) and the other end is pressed against the bottom of the outlet (33) of the guide box, and the inclination angle is β, 15°≤β≤30°.
4. The iron-adding auxiliary device for an iron-mixing furnace according to claim 3, characterized in that: A splash plate (36) is arranged on the top of the guide box (3) in an inclination direction opposite to that of the transition plate (35), and the splash plate (36) is located on a side of the iron mixing port (32) close to the iron mixing furnace (1), and a plurality of drainage grooves (37) are evenly spaced on the inclined surface of the splash plate (36).
5. The iron-adding auxiliary device for an iron-mixing furnace according to any one of claims 1 to 4, characterized in that: The dust removal device comprises a dust removal hood (4) arranged above and behind the iron mixing port (32), a dust removal pipe (5) connected to the dust removal hood (4), and a baffle (6) arranged on the dust removal hood (4); the baffle (6) is a semi-enclosed structure, and is respectively located at the top of the dust removal hood (4) and at a side thereof close to the iron mixing furnace (1).
6. The iron-adding auxiliary device for an iron-mixing furnace according to claim 5, characterized in that: The displacement device comprises a platform (7) arranged at the bottom of the guide box (3), rollers (8) symmetrically arranged at the bottom of the platform (7) and controlled by a control mechanism, and tracks (9) symmetrically arranged at the bottom of the rollers (8).