In-furnace automatic rotary material distribution device for silicon iron heat furnace

Abstract

The utility model discloses an in-furnace automatic rotary material distribution device for a silicon iron heat furnace, and relates to the technical field of industrial silicon furnace main body equipment. The blanking device comprises a blanking assembly, a rotating assembly and a swinging assembly, the discharging assembly comprises a discharging barrel and a guide groove, the bottom of the discharging barrel is fixedly connected with a first connecting base, and the outer portion of the guide groove is fixedly connected with a second connecting base; the rotating assembly comprises a driven gear ring, the driven gear ring is fixedly connected to the outer portion of the discharging barrel, a mounting bin is fixedly connected to the outer portion of the discharging barrel, a sealing cover is fixedly connected to the top of the mounting bin, and a hydraulic motor is fixedly connected to the top of the sealing cover; the swing assembly comprises a hydraulic oil cylinder, and a sliding rod is installed at the output end of the hydraulic oil cylinder. The guide chute horizontally moves while rotating through the forward and reverse rotation of the hydraulic motor and the downward movement of the output end of the hydraulic oil cylinder, so that raw materials can be uniformly paved in the hot furnace, and the deterioration of the furnace condition is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of industrial silicon furnace and electric furnace main body equipment, in particular to an automatic rotary material distribution device in a ferrosilicon ore arc furnace. Background Art

[0002] Ferrosilicon submerged arc furnaces are key equipment in the mining and steelmaking industries. They are primarily used to reduce ore, carbonaceous reducing agents, and solvents to produce ferroalloys such as ferrosilicon. Ferrosilicon, an alloy of silicon and iron, is widely used in the steel, foundry, chemical, and electronics industries due to its high strength, excellent electrical conductivity, and wear resistance. During the smelting process, ferrosilicon not only acts as a reducing agent in the iron reduction reaction but also produces alloys such as ferrosilicide, enhancing the iron's strength, hardness, and corrosion resistance. Ferrosilicon submerged arc furnaces utilize carbon or magnesia refractory materials and self-heating electrodes and submerged arc operation, melting the metal using arc and resistance energy. The smelting process encompasses pretreatment, melting, and tapping, enabling continuous operation. Furthermore, as high-power consumption equipment, ferrosilicon submerged arc furnaces are developing towards higher power and larger sizes, incorporating advanced technologies such as low-frequency smelting, fume extraction and dust removal, and energy recovery to improve thermal efficiency and productivity. In short, ferrosilicon submerged arc furnaces occupy a vital position in the metallurgical industry, providing a solid foundation for ferroalloy production.

[0003] The smooth progress of industrial silicon smelting depends not only on the correct ingredients, but more importantly, on uniform distribution and appropriate material surface shape. Because the silica used in industrial silicon smelting is reduced by coke, uneven distribution will result in uneven reducing agent in the furnace. This will not only affect the smooth progress of smelting, but also disrupt the current distribution in the furnace, affect the deep insertion of electrodes, cause unbalanced temperature gradients in the furnace, shrink the smelting crucible, and deteriorate the furnace condition.

[0004] In the past, the material distribution in the industrial silicon smelting furnace was carried out by fixed material pipes and fixed-point unloading, and manual or mechanical pushing was used to distribute the material in the furnace. This method increased the intensity of manual work. Manual or mechanical operations could not accurately control the material due to human control, which would lead to uneven thickness of the material layer, affecting the deterioration of the smelting environment in the furnace. Manual intervention in the distribution process took a long time, had poor consistency, and could not be sustained. The temperature gradient of the furnace material layer was uneven, affecting the structure of the smelting material layer, causing the crucible to shrink, and leading to deterioration of the furnace condition.

[0005] To this end, we provide an automatic rotary charging device for a ferrosilicon submerged arc furnace to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide an automatic rotary distribution device for a ferrosilicon ore arc furnace. By means of the forward and reverse rotation of the hydraulic motor and the downward movement of the output end of the hydraulic cylinder, the material guide chute is moved horizontally while rotating, thereby solving the problem of uneven distribution in the existing industrial silicon smelting furnace, which easily leads to deterioration of the furnace condition.

[0007] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0008] The utility model is an automatic rotary feeding device for a ferrosilicon ore arc furnace, comprising a blanking assembly, a rotating assembly and a swinging assembly; the rotating assembly and the swinging assembly are both arranged outside the blanking assembly:

[0009] The material discharge assembly includes a material discharge barrel and a material guide trough. The bottom of the material discharge barrel is fixedly connected to a first connecting seat, and the material guide trough is rotatably connected to the outside of the first connecting seat. The outside of the material guide trough is fixedly connected to a second connecting seat. The outside of the material discharge barrel is provided with a connecting assembly and a cooling assembly.

[0010] The rotating assembly includes a driven gear ring, which is fixedly connected to the outside of the discharge barrel, the outside of the discharge barrel is fixedly connected to a mounting chamber, the top of the mounting chamber is fixedly connected to a cover, the top of the cover is fixedly connected to a hydraulic motor, the output end of the hydraulic motor is fixedly connected to a driving gear, and the driving gear is meshed with the driven gear ring;

[0011] The swing assembly includes a hydraulic cylinder, a sliding rod is installed at the output end of the hydraulic cylinder, and a connecting rod is rotatably connected between the sliding rod and the second connecting seat.

[0012] The present invention is further configured such that the connecting assembly includes an insulation disk, the insulation disk is movably sleeved on the outside of the discharge barrel, and the slide rod is movably sleeved on the inside of the insulation disk, and the inside of the insulation disk is filled with insulation cotton.

[0013] The present invention is further configured such that the connecting assembly further comprises a bearing seat, the bearing seat being fixedly connected to the top of the heat insulation plate, a sealed bearing being installed inside the bearing seat, and the sealed bearing being installed outside the discharge barrel.

[0014] The utility model is further configured such that the cooling assembly includes a cooling bin, which is fixedly connected to the outside of the discharge barrel, to which a cold liquid pipe and a hot liquid pipe are fixedly connected, and to which a plurality of heat dissipation fins are fixedly connected outside the discharge barrel, and the plurality of heat dissipation fins are all located inside the cooling bin.

[0015] The present invention is further configured such that the cold liquid pipe and the hot liquid pipe are both connected to the cooling bin, and the cold liquid pipe and the hot liquid pipe are respectively close to the bottom and the top of the cooling bin.

[0016] The utility model is further configured such that the bearing seat is a hollow structure, and the outside of the bearing seat is fixedly connected with a liquid inlet pipe and a liquid outlet pipe, the liquid inlet pipe and the liquid outlet pipe are both connected to the bearing seat, and the liquid inlet pipe and the liquid outlet pipe are respectively distributed on both sides of the bearing seat.

[0017] The utility model is further configured such that the output end of the hydraulic cylinder is fixedly connected to an insert block, and the insert block is a square block; the top of the sliding rod is fixedly connected to a third connecting seat, and the insert block is movably inserted into the interior of the third connecting seat; the interior of the third connecting seat is rotatably connected to a fixing screw, and the fixing screw is threadedly sleeved into the interior of the insert block.

[0018] The utility model is further configured such that the top of the heat insulation plate is fixedly connected to a fixing frame, the mounting chamber is fixedly connected to the top of the fixing frame, and the hydraulic cylinder is fixedly connected to the outside of the fixing frame.

[0019] The utility model has the following beneficial effects:

[0020] 1. The utility model starts the hydraulic motor to make the hydraulic motor rotate forward and reverse, thereby driving the driving gear to rotate forward and reverse, and then drives the lower barrel to rotate through the driven gear ring meshing with the driving gear, and then drives the guide chute to rotate through the first connecting seat, and then starts the hydraulic cylinder to make the output end of the hydraulic cylinder move downward, and then the output end of the hydraulic cylinder pushes the slide rod downward to enable the other end of the connecting rod to push the guide chute to rotate around the first connecting seat, so that the inclination angle of the guide chute gradually decreases. At the same time, by adding raw materials into the lower barrel, the raw materials can be added to the hot furnace along the guide chute, and the guide chute can move horizontally while rotating, so that the raw materials can be evenly spread inside the hot furnace to avoid deterioration of the furnace condition.

[0021] 2. The utility model injects cold water into the cooling bin through the cold liquid pipe, and then the cold water in the cooling bin exchanges heat with multiple cooling fins. The heated water is then discharged through the hot liquid pipe, thereby cooling the discharge barrel and preventing the hydraulic cylinder and hydraulic motor from being damaged due to overheating of the working environment.

[0022] 3. The utility model injects coolant into the bearing seat through the liquid inlet pipe, and then the coolant entering the bearing seat can cool the sealed bearing, thereby preventing the sealed bearing from being damaged due to overheating, and then the heated coolant is discharged through the liquid outlet pipe.

[0023] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 It is a structural diagram of the left side of the utility model.

[0026] Figure 2 It is a structural diagram on the right side of the utility model.

[0027] Figure 3 It is a schematic diagram of the cross-sectional structure of the heat insulation plate, bearing seat and cooling chamber.

[0028] Figure 4 This is a schematic diagram of the hydraulic cylinder and slide rod in the disassembled state.

[0029] Figure 5 for Figure 3 Schematic diagram of the enlarged structure at point A in the middle.

[0030] Figure 6 for Figure 3 Schematic diagram of the enlarged structure at point B in the middle.

[0031] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0032] 100- unloading assembly, 101- unloading barrel, 102- guide trough, 103- first connecting seat, 104- second connecting seat, 200- rotating assembly, 201- mounting chamber, 202- sealing cover, 203- hydraulic motor, 204- driving gear, 205- driven gear ring, 300- swing assembly, 301- hydraulic cylinder, 301a- plug-in block, 301b- third connecting seat, 301c- fixing screw, 302- sliding rod, 303- connecting rod, 400- connecting assembly, 401- heat insulation plate, 402- bearing seat, 402a- liquid inlet pipe, 402b- liquid outlet pipe, 403- sealed bearing, 404- heat insulation cotton, 500- cooling assembly, 501- cooling chamber, 502- cold liquid pipe, 503- hot liquid pipe, 504- heat sink fins, 600- fixing bracket. DETAILED DESCRIPTION

[0033] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] Example 1

[0035] See also Figure 1-Figure 5The present invention is an automatic rotary feeding device for a ferrosilicon ore arc furnace, comprising a feeding assembly 100, a rotating assembly 200 and a swinging assembly 300; the rotating assembly 200 and the swinging assembly 300 are both arranged outside the feeding assembly 100:

[0036] The material discharge assembly 100 includes a discharge barrel 101 and a guide chute 102. The bottom of the discharge barrel 101 is fixedly connected to a first connecting seat 103, and the guide chute 102 is rotatably connected to the outside of the first connecting seat 103. The outside of the guide chute 102 is fixedly connected to a second connecting seat. The outside of the discharge barrel 101 is provided with a connecting assembly 400 and a cooling assembly 500.

[0037] The rotating assembly 200 includes a driven gear ring 205, which is fixedly connected to the outside of the discharge barrel 101. The outside of the discharge barrel 101 is fixedly connected to the installation chamber 201. The top of the installation chamber 201 is fixedly connected to the cover 202. The top of the cover 202 is fixedly connected to the hydraulic motor 203. The output end of the hydraulic motor 203 is fixedly connected to the driving gear 204, and the driving gear 204 is meshed with the driven gear ring 205. The hydraulic motor 203 rotates forward and backward, which can drive the discharge barrel 101 to rotate, so that the raw materials can be evenly spread around.

[0038] The swing assembly 300 includes a hydraulic cylinder 301, and a sliding rod 302 is installed at the output end of the hydraulic cylinder 301. A connecting rod 303 is rotatably connected between the sliding rod 302 and the second connecting seat 104. The output end of the hydraulic cylinder 301 is extended and retracted, so that the guide trough 102 can be swung back and forth, so that the raw materials can be evenly scattered in a straight line. Moreover, as the rotating assembly 200 drives the lower barrel 101 to rotate, the raw materials can be evenly scattered on a circular surface centered on the lower barrel 101.

[0039] Specifically, the output end of the hydraulic cylinder 301 is fixedly connected to an insert block 301a, and the insert block 301a is a block. The top of the slide rod 302 is fixedly connected to a third connection seat 301b, and the insert block 301a is movably inserted into the interior of the third connection seat 301b. The interior of the third connection seat 301b is rotatably connected to a fixing screw 301c, and the fixing screw 301c is threadedly sleeved into the interior of the insert block 301a. By removing the fixing screw 301c, the hydraulic cylinder 301 can be easily disassembled and repaired in the event of damage.

[0040] The connecting component 400 includes an insulation plate 401, which is movably connected to the outside of the discharge barrel 101, and the sliding rod 302 is movably connected to the inside of the insulation plate 401. The inside of the insulation plate 401 is filled with insulation cotton 404. By filling the insulation plate 401 with insulation cotton 404, the insulation capacity of the insulation plate 401 can be enhanced to prevent heat from being directly transferred to the outside and causing damage to external equipment.

[0041] Furthermore, the top of the heat insulation plate 401 is fixedly connected to the fixing frame 600 , the mounting chamber 201 is fixedly connected to the top of the fixing frame 600 , and the hydraulic cylinder 301 is fixedly connected to the outside of the fixing frame 600 .

[0042] The operating process of this embodiment is as follows: when it is necessary to add raw materials into the furnace, first, by starting the hydraulic motor 203, the hydraulic motor 203 is caused to rotate forward and reverse, thereby driving the driving gear 204 forward and reverse, and then the lower barrel 101 is driven to rotate through the driven gear ring 205 meshing with the driving gear 204, and then the guide chute 102 is driven to rotate through the first connecting seat 103, and then the hydraulic cylinder 301 is started to make the output end of the hydraulic cylinder 301 move downward, and then the output end of the hydraulic cylinder 301 pushes the sliding rod 302 downward, and the other end of the connecting rod 303 pushes the guide chute 102 to rotate around the first connecting seat 103, so that the inclination angle of the guide chute 102 gradually decreases. At the same time, by adding raw materials into the lower barrel 101, the raw materials can be added to the hot furnace along the guide chute 102, and the guide chute 102 can move horizontally while rotating, so that the raw materials can be evenly spread inside the hot furnace.

[0043] Example 2

[0044] See also Figure 1-Figure 5 On the basis of the specific embodiment 1, the cooling assembly 500 includes a cooling bin 501, which is fixedly connected to the outside of the discharge barrel 101. The outside of the discharge barrel 101 is fixedly connected with a cold liquid pipe 502 and a hot liquid pipe 503. The outside of the discharge barrel 101 is fixedly connected with a plurality of heat dissipation fins 504, and the plurality of heat dissipation fins 504 are all located inside the cooling bin 501. By injecting cold water into the cooling bin 501, the upper end of the discharge barrel 101 can be cooled, thereby preventing the hydraulic cylinder 301 and the hydraulic motor 203 from being damaged by overheating in their working environment. By providing a plurality of heat dissipation fins 504, the heat exchange area can be increased and the heat exchange efficiency can be improved.

[0045] The connecting assembly 400 also includes a bearing seat 402 , which is fixedly connected to the top of the heat insulation plate 401 . A sealed bearing 403 is installed inside the bearing seat 402 , and the sealed bearing 403 is installed on the outside of the discharge barrel 101 .

[0046] Specifically, the bearing seat 402 has a hollow structure, and the outside of the bearing seat 402 is fixedly connected with a liquid inlet pipe 402a and a liquid outlet pipe 402b, the liquid inlet pipe 402a and the liquid outlet pipe 402b are both connected to the bearing seat 402, and the liquid inlet pipe 402a and the liquid outlet pipe 402b are respectively distributed on both sides of the bearing seat 402. By injecting coolant into the interior of the bearing seat 402, the sealed bearing 403 can be cooled to prevent the sealed bearing 403 from overheating and damage.

[0047] Furthermore, the cold liquid pipe 502 and the hot liquid pipe 503 are both connected to the cooling chamber 501 , and the cold liquid pipe 502 and the hot liquid pipe 503 are respectively close to the bottom and the top of the cooling chamber 501 .

[0048] The operation process of this embodiment is as follows: when the unloading barrel 101 needs to be cooled, cold water is first injected into the cooling chamber 501 through the cold liquid pipe 502. Then, the cold water in the cooling chamber 501 exchanges heat with the plurality of heat dissipation fins 504, thereby cooling the unloading barrel 101. The heated water is then discharged through the hot liquid pipe 503.

[0049] When the sealed bearing 403 is working, coolant is injected into the bearing seat 402 through the liquid inlet pipe 402a, and then the coolant entering the bearing seat 402 can cool the sealed bearing 403, and then the heated coolant is discharged through the liquid outlet pipe b.

[0050] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0051] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments do not describe all details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An automatic rotary feeding device for a ferrosilicon ore arc furnace, comprising a feeding assembly (100), a rotating assembly (200) and a swinging assembly (300); characterized in that: The rotating assembly (200) and the swinging assembly (300) are both arranged outside the blanking assembly (100). The material discharge assembly (100) comprises a material discharge barrel (101) and a material guide trough (102); the bottom of the material discharge barrel (101) is fixedly connected to a first connecting seat (103), and the material guide trough (102) is rotatably connected to the outside of the first connecting seat (103); the outside of the material guide trough (102) is fixedly connected to a second connecting seat; and the outside of the material discharge barrel (101) is provided with a connecting assembly (400) and a cooling assembly (500); The rotating assembly (200) includes a driven gear ring (205), the driven gear ring (205) is fixedly connected to the outside of the discharge barrel (101), the outside of the discharge barrel (101) is fixedly connected to the installation chamber (201), the top of the installation chamber (201) is fixedly connected to the cover (202), the top of the cover (202) is fixedly connected to the hydraulic motor (203), the output end of the hydraulic motor (203) is fixedly connected to the driving gear (204), and the driving gear (204) is meshed with the driven gear ring (205); The swing assembly (300) includes a hydraulic cylinder (301), an output end of the hydraulic cylinder (301) is provided with a sliding rod (302), and a connecting rod (303) is rotatably connected between the sliding rod (302) and the second connecting seat (104).

2. The automatic rotary charging device for a ferrosilicon submerged arc furnace according to claim 1, characterized in that: The connecting assembly (400) includes an insulation plate (401), the insulation plate (401) is movably sleeved on the outside of the discharge barrel (101), and the slide rod (302) is movably sleeved on the inside of the insulation plate (401), and the inside of the insulation plate (401) is filled with insulation cotton (404).

3. The automatic rotary charging device for a ferrosilicon submerged arc furnace according to claim 2, characterized in that: The connecting assembly (400) further includes a bearing seat (402), wherein the bearing seat (402) is fixedly connected to the top of the heat insulation plate (401), a sealed bearing (403) is installed inside the bearing seat (402), and the sealed bearing (403) is installed outside the discharge barrel (101).

4. The automatic rotary charging device for a ferrosilicon submerged arc furnace according to claim 1, characterized in that: The cooling assembly (500) includes a cooling bin (501), the cooling bin (501) is fixedly connected to the outside of the discharge barrel (101), a cold liquid pipe (502) and a hot liquid pipe (503) are fixedly connected to the outside of the discharge barrel (101), and a plurality of heat dissipation fins (504) are fixedly connected to the outside of the discharge barrel (101), and the plurality of heat dissipation fins (504) are all located inside the cooling bin (501).

5. The automatic rotary charging device for a ferrosilicon submerged arc furnace according to claim 4, characterized in that: The cold liquid pipe (502) and the hot liquid pipe (503) are both connected to the cooling chamber (501), and the cold liquid pipe (502) and the hot liquid pipe (503) are respectively close to the bottom and the top of the cooling chamber (501).

6. The automatic rotary charging device for a ferrosilicon submerged arc furnace according to claim 3, characterized in that: The bearing seat (402) is a hollow structure, and the outside of the bearing seat (402) is fixedly connected with a liquid inlet pipe (402a) and a liquid outlet pipe (402b), and the liquid inlet pipe (402a) and the liquid outlet pipe (402b) are both connected to the bearing seat (402), and the liquid inlet pipe (402a) and the liquid outlet pipe (402b) are respectively distributed on both sides of the bearing seat (402).

7. The automatic rotary charging device for a ferrosilicon submerged arc furnace according to claim 1, characterized in that: The output end of the hydraulic cylinder (301) is fixedly connected to an insert block (301a), and the insert block (301a) is a square block. The top of the sliding rod (302) is fixedly connected to a third connecting seat (301b), and the insert block (301a) is movably inserted into the interior of the third connecting seat (301b). The interior of the third connecting seat (301b) is rotatably connected to a fixing screw (301c), and the fixing screw (301c) is threadedly sleeved into the interior of the insert block (301a).

8. The automatic rotary charging device for a ferrosilicon submerged arc furnace according to claim 2, characterized in that: The top of the heat insulation plate (401) is fixedly connected to a fixing frame (600), the mounting chamber (201) is fixedly connected to the top of the fixing frame (600), and the hydraulic cylinder (301) is fixedly connected to the outside of the fixing frame (600).

Images