Charging equipment for smelting furnace

Abstract

The utility model relates to a feeding device for a smelting furnace, the feeding device is used for conveying raw materials to be melted into the smelting furnace along a conveying direction (R), the feeding device comprises a feeding platform (100), the feeding platform (100) is used for containing the raw materials and is provided with a plurality of supporting columns and a table top (114) supported by the supporting columns, the heights of the supporting columns are gradually reduced along the conveying direction (R), and the conveying direction (R) of the feeding platform (100) is perpendicular to the conveying direction (R). In the use position of the charging platform, the whole table top (114) is inclined relative to the horizontal plane; a charging rake (200) capable of pushing the raw material on the charging platform (100) into the furnace and having a rake head (204) connected by a connecting rod (202) and a joint (206) for a drive, the lower end of the rake head being flat.

Description

Technical Field

[0001] The utility model relates to a charging device for a melting furnace. Background Art

[0002] When smelting metals, for example, when smelting aluminum alloys, various raw materials, such as original aluminum ingots, recycled materials such as aluminum coils and aluminum scraps, as well as silicon blocks, copper wires, iron powder, manganese powder, magnesium ingots, zinc ingots, etc., need to be added to a furnace in the form of a flame reverberatory furnace in sequence. The furnace door is then closed to start the heating process. Stirring is performed during the melting of the raw materials, and the generated slag is removed.

[0003] When charging, the raw materials can be loaded on the forks of a mobile forklift, which moves to the furnace door and pours the raw materials into the furnace. Alternatively, a charging platform can be used, the raw materials can be loaded onto the platform, and then the raw materials can be pushed into the furnace.

[0004] When adding materials, avoid the accumulation of raw materials in the furnace near the furnace door. Otherwise, raw materials that are required to be in the lower layer, such as magnesium ingots, zinc ingots, aluminum chips, etc., will be burned because they are in the upper layer, while raw materials that are required to be in the upper layer, such as silicon blocks and copper wires, etc., will not be melted in time because they are in the lower layer.

[0005] During the smelting process, stirring and slagging are usually done manually. Utility Model Content

[0006] The object of the present invention is to propose a charging device for a furnace which enables raw materials to be added to the furnace in a safer and more desirable manner.

[0007] According to the utility model, the above-mentioned purpose is achieved as follows, that is, a charging device for a furnace is capable of conveying raw materials to be melted into the furnace along a conveying direction, and the charging device comprises: a charging platform, which is used to accommodate raw materials and has a plurality of pillars and a table top supported by the pillars, wherein along the conveying direction, the height of the pillars gradually becomes lower, so that in the use position of the charging platform, the table top is tilted as a whole relative to the horizontal plane; a charging rake, which is capable of pushing the raw materials on the charging platform into the furnace, and has a rake head connected by a connecting rod and a joint for a drive, wherein the lower end of the rake head is constructed flatly.

[0008] According to an embodiment of the utility model, the support column of the charging device is hollow, and a foot pad is provided at one end of the support column away from the table surface, wherein the cross section of the foot pad is larger than the cross section of the support column.

[0009] According to an embodiment of the present invention, the end face of the pillar at its end facing the table top is inclined relative to the longitudinal axis of the pillar, wherein the end face forms an angle between 80° and 89° with the longitudinal axis, so that the table top forms an angle between 1° and 10° relative to the horizontal plane.

[0010] According to an embodiment of the present invention, the charging platform further comprises a transverse beam and a longitudinal beam, which are respectively connected to the pillars along two directions extending perpendicularly to the pillars.

[0011] According to the implementation mode of the utility model, the charging platform further comprises an oblique support, both ends of which are respectively connected to two of the cross beam, the longitudinal beam and the supporting column.

[0012] According to an embodiment of the present invention, at least one of the pillars, the cross beams and the longitudinal beams is formed by channel steels butt-connected together at the opening sides.

[0013] According to an embodiment of the present invention, the tabletop partially extends out of the uppermost longitudinal beam among the longitudinal beams on a side close to the furnace.

[0014] According to the implementation mode of the utility model, enclosures extending along the conveying direction are respectively provided on both sides of the table top of the feeding platform.

[0015] According to an embodiment of the present invention, the pillars are arranged in a matrix, wherein the spacing of the pillars along the conveying direction gradually increases.

[0016] According to an embodiment of the utility model, the drag head is detachably connected to the connecting rod.

[0017] According to an embodiment of the present invention, the joint portion is provided with an interface for an output portion of the driver.

[0018] According to an embodiment of the utility model, the rake head has a rake plate, which is flat at least on its lower side facing the ground in the use state.

[0019] With the charging device for a melting furnace proposed by the utility model, since the table is tilted relative to the horizontal plane as a whole, the raw materials stacked according to the process requirements can be pushed to the furnace entrance of the melting furnace as a whole through the charging rake, and are tilted into the furnace at the furnace entrance, so that the raw materials can be laid flat in the furnace layer by layer according to the process requirements, rather than piled up in the furnace near the furnace door, thereby improving the melting efficiency and melting quality. In addition, by using this charging device, the operator can stay away from the furnace door as much as possible, thereby improving the safety of the operation. Furthermore, by using the charging rake with a rake head with a flat lower end, raw materials with a smaller volume can be efficiently fed into the melting furnace. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to better understand the above and other purposes, features, advantages and functions of the present invention, reference may be made to the preferred embodiments shown in the accompanying drawings. The same reference numerals in the accompanying drawings refer to the same components. It should be understood by those skilled in the art that the accompanying drawings are intended to schematically illustrate the preferred embodiments of the present invention and have no limiting effect on the scope of the present invention, and the components in the drawings are not drawn to scale. The present invention is described below with the help of the accompanying drawings.

[0021] Figure 1 A side view of a charging platform of a charging device according to the present invention is schematically shown;

[0022] Figure 2 Schematically shows a front view of a charging platform of a charging device according to the utility model;

[0023] Figure 3 A top view of a charging platform of a charging device according to the present invention is schematically shown;

[0024] Figure 4 A truncated view of a charging rake of a charging device according to the present invention is schematically shown;

[0025] Figure 5 The feeding rake is shown along Figure 4 A cross-sectional view of line AA of FIG.

[0026] Figure 6 The feeding rake is shown along Figure 4 Cross-sectional view of line BB DETAILED DESCRIPTION

[0027] The present invention is further described in detail below in conjunction with the accompanying drawings of the specification. The following description is exemplary and not intended to limit the present invention. Those skilled in the art may think of other ways to implement the present invention based on the preferred embodiments, and the other ways also fall within the scope of the present invention.

[0028] In order to convey the raw materials to be melted into the furnace along the conveying direction R, a charging device is provided, which is arranged at the furnace inlet of the furnace. The charging device may include Figure 1 The schematically shown loading platform 100 and the Figure 4 The schematically shown charging rake 200 can be used in combination. The above charging platform will be further described below.

[0029] The loading platform 100 is configured to temporarily accommodate raw materials stacked according to process requirements. The raw materials can be placed on the loading platform, for example, by a forklift. Figures 1 to 3As can be seen, the charging platform 100 has a plurality of pillars and a table 114 supported by the pillars, wherein the height of the pillars gradually decreases along the conveying direction R, so that in the use position of the charging platform, the table 114 is tilted relative to the horizontal plane as a whole, which makes it easier to push the raw materials into the furnace. Here, the ground can be regarded as a horizontal plane.

[0030] Preferably, the plurality of pillars of the charging platform 100 are arranged in a matrix. For example, the accompanying drawings show that two rows of pillars 102, 104 are arranged along the conveying direction R, each row of pillars having three pillars, that is, the pillars are arranged in two rows and three columns along the conveying direction R, wherein the height of the pillars 102 on the left is lower than the height of the pillars 104 on the right. Of course, more than two rows of pillars can be arranged along the conveying direction R, and each row of pillars can have other numbers of pillars, as long as the pillars have a height that gradually decreases along the conveying direction R, so as to ensure that the table 114 is inclined in the use state. In this case, the distance between the pillars in each row of pillars is preferably the same to achieve simple manufacturing; it is also preferred that the spacing between adjacent rows of pillars gradually increases along the conveying direction R, which makes the center of gravity of the charging platform 100 closer to the side of the charging platform 100 away from the furnace entrance, so as to improve safety when the charging platform is transported by a forklift, for example. Other arrangements of the plurality of pillars of the charging platform 100 are also feasible.

[0031] The support of the charging device can be provided with a foot pad 106 at the end of the support away from the table 114, wherein the cross section of the foot pad 106 is larger than the cross section of the support to reduce the pressure acting on the ground. The foot pad 106 can be implemented as a metal plate additionally mounted on the end side of the support, which can be connected to the support by welding. Here, preferably, in the accompanying drawings not shown, the end faces of each support at its end facing the table 114 are equally inclined relative to the longitudinal axis of the support, wherein the end face forms an angle between 80° and 89° with the longitudinal axis, so that the table forms an angle between 1° and 10° relative to the horizontal plane, for example, an angle of 1°, 2°, 3°, 4°, 5°, 6°, 7°, °8 or 9°. Therefore, in this case, when the foot pads of the pillars are in contact with the ground, the angle of inclination of the table top 114 relative to the horizontal plane, i.e. the ground, can be between 1° and 10° while keeping the pillars vertical relative to the horizontal plane, i.e. the ground, thereby forming a gentler inclination angle, which is beneficial for charging large-capacity furnaces with a large depth, in particular, avoiding the collapse of raw materials stacked according to process requirements when being pushed by a charging rake due to an excessively large inclination angle and scattering on the charging platform or accumulating in the furnace near the furnace door.

[0032] The support column can be configured to be hollow, for example, the inner contour and / or outer contour of its cross section can be square. Exemplarily, the support column can be formed by channel steels connected together at the opening side, that is, by a pair of channel steels welded to each other at the opening side.

[0033] If you can also Figures 1 to 3 As can be seen, the loading platform 100 also has crossbeams, wherein two layers of crossbeams 109, 113 with different heights are shown by way of example. Preferably, the crossbeams in the same layer have the same size, and the length of the uppermost crossbeam 113 is greater than the length of the lower crossbeam 109. Preferably, the length of the uppermost crossbeam 113 corresponds at least substantially to the width of the loading platform 100. In addition, the loading platform 100 also has longitudinal beams, wherein two layers of longitudinal beams 108, 112 with different heights are shown by way of example. Preferably, the longitudinal beams arranged in the same row in the same layer have the same size, and the length of the uppermost longitudinal beam 112 is greater than the length of the lower longitudinal beam 108. Preferably, the length of the uppermost longitudinal beam 112 is less than the length of the loading platform 100, which will also be explained below. The crossbeams and / or longitudinal beams are respectively connected to the pillars in a direction extending perpendicularly to the pillars, for example, connected to the pillars at the ends and / or the middle of the pillars, such as welding. Preferably, the pillars and the crossbeams and longitudinal beams assigned to the pillars are perpendicular to each other. By providing the cross beams and / or longitudinal beams, the structural stability of the loading platform 100 can be improved.

[0034] Preferably, when multiple layers of transverse beams and multiple layers of longitudinal beams are provided, both transverse beams and longitudinal beams are provided in the same layer.

[0035] The transverse beams and / or longitudinal beams can also be formed by channel steels which are connected together in a butted manner at the open sides, for example by welding.

[0036] The loading platform 100 further comprises diagonal braces 110 and 111 , both ends of which are respectively connected to two of the cross beam, the longitudinal beam and the supporting column, so as to further improve the structural stability of the loading platform 100 .

[0037] The table top 114 may be formed of a steel plate having a given thickness. For example, the table top may be formed integrally from a single steel plate, or may be formed by splicing a plurality of plates together, wherein the plates are in a single plane. The length and width of the table top 114 may define the length and width of the loading platform 100. The table top 114 may be welded to the cross beams and longitudinal beams arranged at the upper ends of the columns. Figure 11 shows that the table 114 partially extends out of the uppermost longitudinal beam among the longitudinal beams on the side close to the furnace. Therefore, the table 114 extends out from the longitudinal beams with its first section 114A and is connected to the cross beams and the longitudinal beams with its second section 114B, wherein the first section 114A can be arranged to be placed at the entrance of the furnace, and the end of the longitudinal beam close to the entrance of the furnace is spaced apart from the furnace, thereby reducing the height of the charging platform 100 and making as much of the charging platform 100 itself as possible away from the furnace to avoid being affected by the heat load from the furnace.

[0038] The two sides of the table 114 of the charging platform 100 may be provided with enclosures 116, respectively. Thus, a channel for pushing raw materials can be defined. The enclosure 116 may include a bracket 118 and a baffle 120 arranged on the bracket 118. The enclosure 116 on each side may include a plurality of brackets 118 spaced apart from each other. The bracket 118 may be formed of channel steel. The bracket 118, the baffle 120 and the table 114 may be welded to each other. The baffle 120 may preferably be triangular at its end facing the furnace.

[0039] exist Figures 4 to 6 1 shows a charging rake 200 of the charging device, which can move in the channel of the charging platform 100 to push the raw materials on the charging platform 100 into the furnace. In addition, the molten metal in the furnace can be stirred by the charging rake 200, and the slag floating on the surface of the molten metal can be raked out of the furnace. The charging rake 200 can be held at the output part of a drive not shown, such as the fork foot of a forklift.

[0040] The charging rake 200 comprises a connecting rod 202 and a rake head 204 and a coupling part 206 for a drive connected by the connecting rod 202 .

[0041] The connecting rod 202 may be configured as a hollow cylinder having a relatively long predetermined length, for example, formed of a metal steel pipe.

[0042] The drag head 204 may include a drag plate 208, a connecting rod 210, and a rib plate 212, which are preferably made of high temperature resistant materials. The drag plate 208 is at least substantially arranged perpendicularly to the connecting rod 210 at a free end of the connecting rod 210, wherein the rib plate 212 is arranged oppositely on both sides of the connecting rod 210 and is welded to the connecting rod 210 and the drag plate 208, thereby ensuring the structural stability of the drag head 204. Figure 5 As can be seen in the figure, the lower end of the rake head 204, more precisely the rake plate 208 thereof, is flat, thereby making it easier to push small volumes of raw materials into the furnace. The other free end of the connecting rod 210 can be welded to a free end of the connecting rod 202, thereby forming a weld 216. Of course, the connecting rod 210 can also be connected to the connecting rod 202 in other ways, such as being detachably connected together, such as by threaded connection.

[0043] according to Figure 5 The rake plate 208 can be formed by a whole plate, wherein, with reference to the use state of the feeding rake 200, the lower end of the rake plate 208 facing the ground is flat, so that when the rake plate contacts the table surface of the feeding platform 100, there is at least no large gap between them. Of course, the rake plate 208 can also have other embodiments, as long as the lower end of the rake plate 208 facing the ground is flat.

[0044] Preferably, the connecting rod 210 and the connecting rod 202 may have the same cross-section.

[0045] The joint 206 is fixedly connected to the connecting rod 202 at the other free end of the connecting rod 202. The joint 206 is provided with an interface 214 for the output of the driver.

[0046] In accordance with Figure 6 In the example of the joint 206 shown, the joint 206 is configured as a flat structure, wherein the connecting rod 202 extends centrally into the joint 206. Here, the joint 206 is composed of a pair of panels 218 and a plurality of bridge plates 220 arranged between the panels 218, the panels 218 and the bridge plates 220 being arranged perpendicular to each other, and the bridge plates 220 being spaced apart from each other, thereby forming a channel 214. The output of the drive not shown can be accommodated in the above-mentioned channel 214 at least approximately in a form-fitting manner. Both the panel 218 and the bridge plate 220 can be metal plates and, for example, welded to each other. One end of the connecting rod 202 can also be fixedly arranged at the joint 206 by welding, thereby establishing a fixed connection that cannot rotate relative to each other.

[0047] The charging rake 200 can cooperate with the charging platform 100 , that is, push the raw materials placed on the charging platform 100 into the furnace of the furnace along the conveying direction R between the enclosures of the charging platform 100 .

[0048] The charging rake 200 can also work independently, for example, to stir the melt in the furnace, or to rake slag on the surface of the melt out of the furnace.

[0049] Although the above describes the specific embodiments of the utility model, it should be understood by those skilled in the art that these are only examples. The scope of protection of the utility model is defined by the appended claims. Without departing from the principle and essence of the utility model, those skilled in the art may make changes or modifications to these embodiments, but these changes and modifications fall within the scope of protection of the utility model.

Claims

1. A charging device for a melting furnace, the charging device being used to convey raw materials to be melted into the melting furnace along a conveying direction (R), characterized in that: The feeding equipment comprises: A loading platform (100) is used to accommodate the raw materials and comprises a plurality of pillars and a tabletop (114) supported by the pillars, wherein the height of the pillars gradually decreases along the conveying direction (R), so that in the use position of the loading platform, the tabletop (114) is tilted relative to the horizontal plane as a whole; A charging rake (200) is capable of pushing the raw materials on the charging platform (100) into the furnace and comprises a rake head (204) and a joint (206) for a driver connected by a connecting rod (202), wherein the lower end of the rake head is flat.

2. The feeding device according to claim 1, characterized in that: The support column of the charging device is hollow, and a foot pad (106) is provided at one end of the support column away from the table surface (114), wherein the cross section of the foot pad (106) is larger than the cross section of the support column.

3. The feeding device according to claim 2, characterized in that: The end faces of the pillars at their ends facing the table (114) are equally inclined relative to the longitudinal axis of the pillars, wherein the end faces form an angle between 80° and 89° with the longitudinal axis, so that the table (114) forms an angle between 1° and 10° relative to the horizontal plane.

4. The feeding device according to claim 1, characterized in that: The loading platform (100) further comprises a transverse beam and a longitudinal beam, which are connected to the pillars in two directions extending perpendicularly to the pillars.

5. The feeding device according to claim 4, characterized in that: The feeding platform (100) also has a diagonal brace, the two ends of which are respectively connected to two of the cross beam, the longitudinal beam and the support column.

6. The feeding device according to claim 5, characterized in that At least one of the support, the cross beam and the longitudinal beam is formed of channel steels butt-connected together at an open side.

7. The feeding device according to claim 4, characterized in that: The table top (114) partially extends out of the uppermost longitudinal beam among the longitudinal beams on a side close to the furnace.

8. The feeding device according to claim 1, characterized in that: Enclosures (116) extending along the conveying direction are respectively provided on both sides of the tabletop (114) of the feeding platform (100).

9. The feeding device according to claim 1, characterized in that: The struts are arranged in a matrix, wherein the spacing of the struts along the conveying direction (R) increases.

10. The charging device according to any one of claims 1 to 9, characterized in that The drag head (204) is detachably connected to the connecting rod (202).

11. The charging device according to any one of claims 1 to 9, characterized in that The joint (206) is provided with an interface (214) for the output of the driver.

12. The charging device according to any one of claims 1 to 9, characterized in that The drag head has a drag plate (208) which, in the use state of the feeding rake (200), is flat at least on its underside facing the ground.

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