Continuous discharging mechanism and method of metal magnesium reduction furnace

Abstract

The present application relates to the technical field of metal magnesium production, and particularly relates to a continuous discharging mechanism and method of a metal magnesium reduction furnace, comprising a reduction tank, a grading mechanism, a supporting mechanism and a discharger, a plurality of grading mechanisms are stacked in the reduction tank, the bottom grading mechanism is connected with the supporting mechanism, and the grading mechanism is used for collecting magnesium vapor; the supporting mechanism comprises a material blocking baffle and a supporting piece, the supporting piece is located at the bottom of the grading mechanism and is embedded with the material blocking baffle, the width of the material blocking baffle is greater than the width of the supporting piece, the sidewall of the discharger is provided with a slide, and when the supporting piece is located at the bottom of the slide, moving outward along the horizontal direction can separate the material blocking baffle and the discharger. The continuous operation of the magnesium reduction furnace is realized by setting the reduction tank, the grading mechanism, the supporting mechanism and the discharger, the supporting mechanism with the material blocking baffle and the supporting piece is designed, the discharging operation during the continuous operation of the magnesium reduction furnace is improved, the cooperation degree is high, the continuous discharging operation is smooth, and the operation efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of magnesium production technology, and in particular to a continuous feeding mechanism and method for a magnesium reduction furnace. Background Technology

[0002] In magnesium smelting technology, the vertical reduction furnace is currently the mainstream equipment. In a vertical reduction furnace, the reduction vessel is placed vertically inside the furnace body, and a central tube is installed inside the reduction vessel. During production, a crane is first used to add the material to the area between the vessel and the central tube. Then, the crystallizer and furnace cover are installed in sequence, allowing the pellets to be reduced at a temperature of 1200℃. After the reaction is complete, the furnace cover is opened. First, the crystallizer is removed using a crane, and then the central tube is lifted out using a crane. At the same time, a collection trolley is used at the bottom of the furnace to collect the slag flowing from the bottom of the reduction vessel. After the slag is removed, the central tube and material are put back in for recycling.

[0003] This intermittent operation, which processes materials in batches, fails to achieve fully continuous production. The production interruption time during the charging and uncharging stages is still relatively long, and there is still room for improvement in the single-furnace capacity. Furthermore, in this intermittent operation, the instantaneous addition of cold materials to the vertical tank during the charging stage after uncharging can severely disturb the furnace temperature field, leading to fluctuations in production conditions. Stable production conditions are a prerequisite for the normal operation of thermal furnaces. In addition, the high-temperature reduction tank has low strength, and the instantaneous contact with a large amount of cold materials, along with the huge temperature difference and lateral pressure, can easily cause the tank to crack and deform, seriously affecting the service life of the vertical tank.

[0004] In response to this situation, there are some continuous operation concepts, but the feeding mechanism uses existing equipment. The existing feeding mechanism cannot accurately match the structure of the continuous reduction furnace, resulting in problems such as material spillage, overflow, and jamming during continuous operation. It often requires furnace shutdown for maintenance, leading to low feeding efficiency and slowing down the continuous operation speed. Summary of the Invention

[0005] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a continuous feeding mechanism and method for a magnesium reduction furnace. By setting up a reduction tank, a grading mechanism, a support mechanism and a discharge device, the continuous operation of the magnesium reduction furnace is realized. Furthermore, a support mechanism with baffles and support components is designed to improve the feeding operation during continuous operation of the magnesium reduction furnace. The mechanism has a high degree of coordination, smooth continuous feeding operation, and improved operating efficiency.

[0006] A continuous feeding mechanism for a magnesium reduction furnace includes a reduction tank, a grading mechanism, a support mechanism, and a discharge device. The reduction tank is a circular tube of equal diameter that runs vertically through the furnace body. The discharge device is located below the reduction tank. Multiple grading mechanisms are stacked vertically inside the reduction tank. The bottom grading mechanism is detachably connected to the support mechanism. The support mechanism is used to support the bottom grading mechanism as it enters the discharge device. The grading mechanism includes a reactor for collecting magnesium vapor inside the reduction tank.

[0007] The support mechanism includes a baffle plate and a support member. The support member is hook-shaped, with its long side located at the bottom of the grading mechanism and its short side fitting into the baffle plate. The width of the baffle plate is greater than the width of the support member. The side wall of the discharge device is provided with a slide that matches the support mechanism, and the bottom inner wall is provided with a groove for placing the support member. When the support member is located at the bottom of the slide, the upper edge of the discharge device is higher than the lower edge of the reduction tank, and it can move outward in the horizontal direction to disengage from the baffle plate and the discharge device.

[0008] Continuous operation of the magnesium reduction furnace was achieved by incorporating a reduction tank, a grading mechanism, a support mechanism, and a discharge device. The support mechanism, equipped with baffles and supports, improved the material feeding process during continuous operation, with its structure precisely matching the furnace structure. By limiting the height difference between the upper edge of the discharge device and the lower edge of the reduction tank, material leakage during feeding was prevented. The support mechanism, grading mechanism, and discharge device work together seamlessly, ensuring smooth continuous feeding and resolving issues of spillage, overflow, and jamming caused by model incompatibility in existing equipment, thus improving operational efficiency.

[0009] Furthermore, the top of the slide is provided with a guide opening, the width of which is wider than the width of the slide, and the height difference between the upper edge of the discharge device and the lower edge of the reduction tank is the same as the height of the guide opening.

[0010] By setting up a guide port, it is easy to cooperate and install the feeder with the support mechanism, and structurally ensures that there is a height difference between the upper edge of the feeder and the lower edge of the reduction tank.

[0011] Furthermore, the grading mechanism also includes a base, with the reactor located at the center of the base. All the reactors of the grading mechanism are arranged in a vertical row in the reduction tank, with the diameter of the base matching the diameter of the inner wall of the reduction tank. The bottom center of the base has a reactor fitting hole, and the support is located at the bottom of the base.

[0012] By setting reactor fitting holes, the stacking of reactors inside the reduction tank is made more stable.

[0013] Furthermore, it also includes a seal whose diameter matches the bottom diameter of the reactor.

[0014] By installing a sealing element, air is prevented from being drawn in from the bottom of the reactor during discharge, thus avoiding the collection of magnesium vapor.

[0015] Furthermore, the reactor sidewall is provided with air holes, and the sealing element is cylindrical with the same height as the reactor.

[0016] By making the seal cylindrical, air drawn into the reactor's vents is blocked, resulting in a better seal.

[0017] Furthermore, the baffle plate is an arc-shaped plate with an arc that matches the feeder.

[0018] By setting up an arc-shaped baffle, the material storage space inside the feeder is increased, and its curvature matches the feeder, thus avoiding material overflow from gaps.

[0019] Furthermore, the bottom of the baffle plate is provided with an inwardly bent material-blocking edge, the width of which matches the groove for placing the support member.

[0020] By setting a material-blocking edge, the material-blocking edge can fall down to prevent material from overflowing when the support is pulled out, thus enhancing the sealing performance of the material-blocking partition.

[0021] Furthermore, the support mechanism consists of four groups, which are connected to the hierarchical mechanism in a cross shape.

[0022] By setting up a cross-shaped support mechanism, the graded mechanism is subjected to balanced and stable forces.

[0023] A continuous feeding method for a magnesium reduction furnace, comprising the following steps:

[0024] S01. Place the support component of the support mechanism through the slide of the discharger at the lower edge of the reduction tank, so that the support component supports the grading mechanism, and the baffle plate is placed in the slide and fitted with the support component.

[0025] S02. Move the empty discharge device upward from the bottom of the reduction tank, and the support mechanism enters the discharge device slide until the upper edge of the discharge device is higher than the lower edge of the reduction tank.

[0026] S03. Move the support component downwards, causing the grading mechanism, material and baffle plate to move downwards together until the support component enters the bottom groove of the discharger.

[0027] S04. Pull out the support component along the horizontal axis, and the baffle plate stays inside the discharge device;

[0028] S05. Place the support component at the lower edge of the previous grading mechanism, and place the spare baffle plate in the slide and fit it into the support component.

[0029] S06. Remove the feeder containing the material;

[0030] S07. Repeat steps S02-S06 to achieve continuous feeding.

[0031] By designing a continuous feeding method including steps S01-S07, continuous feeding operations were realized, the feeding operation during continuous operation was standardized, the operation was smooth, the efficiency was improved, and the problems of spillage, overflow and jamming were avoided.

[0032] Furthermore, in step S02, a seal is first installed at the bottom of the reactor at the bottom of the reduction tank, and then the discharge device is moved.

[0033] By installing seals, air is prevented from being drawn in from the bottom of the reactor during discharge, thus avoiding the collection of magnesium vapor.

[0034] The beneficial effects of this invention are:

[0035] This invention discloses a continuous feeding mechanism for a magnesium reduction furnace. By incorporating a reduction tank, a grading mechanism, a support mechanism, and a discharge device, the continuous operation of the magnesium reduction furnace is achieved. The support mechanism, featuring baffles and supports, optimizes the feeding process during continuous operation, and its structure precisely matches the requirements of a continuously operating reduction furnace. By limiting the height difference between the upper edge of the discharge device and the lower edge of the reduction tank, material leakage is prevented during feeding. The support mechanism, grading mechanism, and discharge device work in close coordination, ensuring smooth continuous feeding and resolving issues of spillage, overflow, and jamming caused by model mismatches in existing equipment, thus improving operational efficiency.

[0036] By designing a continuous feeding method for a magnesium reduction furnace, continuous feeding operations were achieved, the feeding operation during continuous operation was standardized, the operation was smooth and the efficiency was improved, and the problems of spillage, overflow and jamming were avoided. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the overall structure of the continuous feeding mechanism of a magnesium reduction furnace according to the present invention.

[0038] Figure 2 This is a schematic diagram of the material feeding process of the reduction tank according to the present invention;

[0039] Figure 3 This is a schematic diagram of the discharge device detachment process of the present invention;

[0040] Figure 4 This is a front view of the grading mechanism of the present invention;

[0041] Figure 5 This is a top view of the grading mechanism of the present invention;

[0042] Figure 6This is a schematic diagram of the load-bearing structure of the support mechanism of the present invention;

[0043] Figure 7 This is a schematic diagram of the baffle structure of the support mechanism of the present invention;

[0044] Figure 8 This is a schematic diagram illustrating the cooperation of the support mechanism of the present invention;

[0045] Figure 9 This is a schematic diagram of the feeder structure of the present invention;

[0046] Figure 10 This is a front view of the feeder of the present invention;

[0047] Figure 11 for Figure 10 Sectional view at point AA;

[0048] Figure 12 for Figure 10 Sectional view at BB;

[0049] Figure 13 for Figure 10 Sectional view at CC;

[0050] Figure 14 When the support mechanism is located at the bottom of the feeder Figure 10 Sectional view at point AA;

[0051] Figure 15 When the support mechanism is located at the bottom of the feeder Figure 10 Sectional view at BB.

[0052] In the diagram: 1. Reduction tank; 2. Grading mechanism; 21. Reactor; 22. Base; 221. Reactor mating hole; 3. Support mechanism; 31. Support component; 32. Material baffle; 321. Material blocking edge; 322. Support component mating hole; 4. Discharge device; 41. Slide; 42. Groove; 43. Guide port; 5. Sealing component. Detailed Implementation

[0053] To better explain and facilitate understanding of the present invention, it will be described in detail below with reference to the accompanying drawings and specific embodiments. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a clearer and more thorough understanding of the invention and to fully convey the scope of the invention to those skilled in the art.

[0054] like Figures 1-15As shown, a continuous feeding mechanism for a magnesium reduction furnace includes a reduction tank 1, a grading mechanism 2, a support mechanism 3, and a discharge device 4. The reduction tank 1 is a circular tube of equal diameter that runs vertically through the furnace body. The discharge device 4 is located below the reduction tank 1. Multiple grading mechanisms 2 are stacked vertically inside the reduction tank 1. The bottom grading mechanism 2 is detachably connected to the support mechanism 3. The support mechanism 3 is used to support the bottom grading mechanism 2 as it enters the discharge device 4. The grading mechanism 2 includes a reactor 21, which is used to collect magnesium vapor inside the reduction tank 1.

[0055] The support mechanism 3 includes a baffle plate 32 and a support member 31. The support member 31 is hook-shaped, with its long side located at the bottom of the grading mechanism 2 and its short side fitting into the baffle plate 32. The width of the baffle plate 32 is greater than the width of the support member 31. The side wall of the discharge device 4 is provided with a slide 41 that matches the support mechanism 3, and the bottom inner wall is provided with a groove 42 for placing the support member 31. When the support member 31 is located at the bottom of the slide 41, the upper edge of the discharge device 4 is higher than the lower edge of the reduction tank 1, and it can move outward in the horizontal direction to disengage from the baffle plate 32 and the discharge device 4.

[0056] By setting the baffle plate 32, the material is prevented from flowing out along the slide 41 of the discharger 4.

[0057] The magnesium reduction furnace achieves continuous operation by incorporating a reduction tank 1, a grading mechanism 2, a support mechanism 3, and a discharge device 4. The support mechanism 3, featuring a baffle plate 32 and a support component 31, optimizes the material feeding process during continuous operation, with its structure precisely matching the furnace's design. Limiting the height difference between the upper edge of the discharge device 4 and the lower edge of the reduction tank 1 prevents material leakage during feeding. The support mechanism 3, grading mechanism 2, and discharge device 4 work seamlessly together, ensuring smooth continuous feeding and resolving issues of spillage, overflow, and jamming caused by model mismatches in existing equipment, thus improving operational efficiency.

[0058] More specifically, the bottom of the baffle plate 32 is provided with a support member 31 mating hole along the horizontal direction for fitting with the support member 31.

[0059] Specifically, the top of the slide 41 is provided with a guide port 43, the width of the guide port 43 is wider than the width of the slide 41, and the height difference between the upper edge of the discharge device 4 and the lower edge of the reduction tank 1 is the same as the height of the guide port 43.

[0060] By setting the guide port 43, it is convenient to cooperate and install the feeder 4 and the support mechanism 3, and structurally ensures that there is a height difference between the upper edge of the feeder 4 and the lower edge of the reduction tank 1.

[0061] Specifically, the grading mechanism 2 also includes a base 22, and a reactor 21 is located at the center of the base 22. All the reactors 21 of the grading mechanism 2 are arranged in a row in the vertical direction in the reduction tank 1. The diameter of the base 22 matches the inner wall diameter of the reduction tank 1. The bottom center of the base 22 is provided with a matching hole for the reactor 21. The support 31 is located at the bottom of the base 22.

[0062] By setting the mating holes in reactor 21, the stacking of reactor 21 inside reduction tank 1 is made more stable. The gap between the classification mechanism 2 and reduction tank 1 is used to fill material.

[0063] Specifically, it also includes a seal 5, the diameter of which matches the bottom diameter of the reactor 21.

[0064] By setting the sealing element 5, air is prevented from being drawn in from the bottom of the reactor 21 under negative pressure during discharge, thus avoiding the collection of magnesium vapor.

[0065] Specifically, the reactor 21 has air holes on its side wall, and the sealing element 5 is cylindrical with the same height as the reactor 21.

[0066] By making the seal 5 cylindrical, the air drawn in by the vent of reactor 21 is blocked, resulting in a better sealing effect.

[0067] Specifically, the baffle plate 32 is an arc-shaped plate with an arc that matches the feeder 4.

[0068] By setting an arc-shaped baffle 32, the internal material storage space of the feeder 4 is made larger, and its curvature matches that of the feeder 4, thus avoiding material overflow from gaps.

[0069] Specifically, the bottom of the baffle plate 32 is provided with an inwardly bent material-blocking edge 321, the width of which matches the groove 42 for placing the support member 31.

[0070] By setting the material blocking edge 321, the material blocking edge 321 can fall down to prevent material from overflowing when the support 31 is pulled out, thereby enhancing the sealing performance of the material blocking partition 32.

[0071] Specifically, the support mechanism 3 consists of 4 groups, which are connected to the hierarchical mechanism 2 in a cross shape.

[0072] By setting up a cross-shaped support mechanism 3, the graded mechanism 2 is subjected to balanced and stable forces.

[0073] A continuous feeding method for a magnesium reduction furnace, comprising the following steps:

[0074] S01. The support member 31 of the support mechanism 3 is placed under the lower edge of the reduction tank 1 through the slide 41 of the discharge device 4, so that the support member 31 supports the grading mechanism 2, and the baffle plate 32 is placed in the slide 41 and fitted with the support member 31.

[0075] S02. Move the empty discharge device 4 upward from below the reduction tank 1, and the support mechanism 3 enters the slide 41 of the discharge device 4 until the upper edge of the discharge device 4 is higher than the lower edge of the reduction tank 1.

[0076] S03. Move the support 31 downwards, which will drive the grading mechanism 2, the material and the baffle 32 to move downwards together until the support 31 enters the bottom groove 42 of the discharger 4.

[0077] S04. The support member 31 is pulled out along the horizontal axis, and the baffle plate 32 stays inside the discharger 4.

[0078] S05. Place the support 31 at the lower edge of the upper grading mechanism 2, and place the spare baffle 32 in the slide 41 and fit it with the support 31.

[0079] S06. Remove the feeder 4 containing the material;

[0080] S07. Repeat steps S02-S06 to achieve continuous feeding.

[0081] Figure 1 The reduction tank 1 in the image shows the main feeding process from left to right. More detailed... Figure 2 The process of step S03 is shown. Figure 3 The process of steps S04-S06 and returning to step S02 is shown.

[0082] By designing a continuous feeding method including steps S01-S07, continuous feeding operations were realized, the feeding operation during continuous operation was standardized, the operation was smooth, the efficiency was improved, and the problems of spillage, overflow and jamming were avoided.

[0083] Specifically, in step S02, a seal 5 is first installed at the bottom of the reactor 21 at the bottom of the reduction tank 1, and then the discharge device 4 is moved.

[0084] By installing the sealing element 5, air is prevented from being drawn in from the bottom of the reactor 21 under negative pressure during discharge, thus avoiding the collection of magnesium vapor.

[0085] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make modifications, alterations, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A continuous feeding mechanism for a magnesium reduction furnace, characterized in that, The system includes a reduction tank (1), a grading mechanism (2), a support mechanism (3), and a discharge device (4). The reduction tank (1) is a circular tube of equal diameter that runs vertically through the furnace body. The discharge device (4) is located below the reduction tank (1). Multiple grading mechanisms (2) are stacked vertically inside the reduction tank (1). The bottom grading mechanism (2) is connected to the support mechanism (3) in a detachable manner. The support mechanism (3) is used to support the bottom grading mechanism (2) to enter the discharge device (4). The grading mechanism (2) includes a reactor (21). The reactor (21) is used to collect magnesium vapor inside the reduction tank (1). The support mechanism (3) includes a baffle plate (32) and a support member (31). The support member (31) is hook-shaped. The long side of the support member (31) is located at the bottom of the grading mechanism (2), and the short side is fitted with the baffle plate (32). The width of the baffle plate (32) is greater than the width of the support member (31). The side wall of the discharge device (4) is provided with a slide (41) that matches the support mechanism (3). The bottom inner wall is provided with a groove (42) for placing the support member (31). When the support member (31) is located at the bottom of the slide (41), the upper edge of the discharge device (4) is higher than the lower edge of the reduction tank (1), and it can move outward in the horizontal direction to disengage from the baffle plate (32) and the discharge device (4).

2. The continuous feeding mechanism for a magnesium reduction furnace as described in claim 1, characterized in that: The top of the slide (41) is provided with a guide port (43), the width of the guide port (43) is wider than the width of the slide (41), and the height difference between the upper edge of the discharge device (4) and the lower edge of the reduction tank (1) is the same as the height of the guide port (43).

3. The continuous feeding mechanism for a magnesium reduction furnace as described in claim 1, characterized in that: The grading mechanism (2) also includes a base (22), and the reactor (21) is located at the center of the base (22). All the reactors (21) of the grading mechanism (2) are arranged in a row in the vertical direction in the reduction tank (1). The diameter of the base (22) matches the inner wall diameter of the reduction tank (1). The bottom center of the base (22) is provided with a reactor (21) fitting hole. The support (31) is located at the bottom of the base (22).

4. The continuous feeding mechanism for a magnesium reduction furnace as described in claim 3, characterized in that: It also includes a seal (5) whose diameter matches the bottom diameter of the reactor (21).

5. The continuous feeding mechanism for a magnesium reduction furnace as described in claim 4, characterized in that: The reactor (21) has vent holes on its side wall, and the sealing element (5) is cylindrical with the same height as the reactor (21).

6. The continuous feeding mechanism for a magnesium reduction furnace as described in claim 1, characterized in that: The baffle plate (32) is an arc-shaped plate, and its curvature matches that of the feeder (4).

7. The continuous feeding mechanism for a magnesium reduction furnace as described in claim 1, characterized in that: The bottom of the baffle plate (32) is provided with a baffle edge (321) that bends inward, and the width of the baffle edge (321) matches the groove (42) where the support member (31) is placed.

8. The continuous feeding mechanism for a magnesium reduction furnace as described in claim 1, characterized in that: The support mechanism (3) consists of 4 groups, which are connected to the grading mechanism (2) in a cross shape.

9. A continuous feeding method for a magnesium reduction furnace, comprising a continuous feeding mechanism for a magnesium reduction furnace as described in any one of claims 1-8, characterized in that, Includes the following steps: S01. The support member (31) of the support mechanism (3) is placed through the slide (41) of the discharger (4) and placed at the lower edge of the reduction tank (1), so that the support member (31) supports the grading mechanism (2), and the baffle plate (32) is placed in the slide (41) and fitted with the support member (31). S02. Move the empty discharge device (4) upward from the bottom of the reduction tank (1), and the support mechanism (3) enters the slide (41) of the discharge device (4) until the upper edge of the discharge device (4) is higher than the lower edge of the reduction tank (1). S03, move the support member (31) downward, causing the grading mechanism (2), the material and the baffle plate (32) to move downward together until the support member (31) enters the bottom groove (42) of the discharger (4); S04. The support member (31) is pulled out along the horizontal axis, and the baffle plate (32) stays inside the feeder (4); S05. Place the support (31) at the lower edge of the upper grading mechanism (2), and place the spare baffle (32) in the slide (41) and fit it with the support (31). S06. Remove the feeder containing the material (4); S07. Repeat steps S02-S06 to achieve continuous feeding.

10. The continuous feeding method for a magnesium reduction furnace as described in claim 9, characterized in that: In step S02, a seal (5) is first installed at the bottom of the reactor (21) at the bottom of the reduction tank (1), and then the discharge device (4) is moved.

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