A self-opening storage bin for use in smelting

Abstract

The utility model relates to a self-opening type storage bin for smelting belongs to high temperature alloy feeding technical field. The storage bin includes the bin body, and the upper end and the lower end of bin body are open, and the lower end of bin body is connected with the flow guide section, and the flow guide section is the truncated cone cylinder, and the movable plate is connected on the flow guide section, and one end of movable plate is the rotating end, and the other end is the free end, and the rotating end is rotatably connected with the flow guide section, and the free end is connected with the chain, and the chain is connected with the hoisting equipment. The self-opening type storage bin mainly includes the bin body, the flow guide section and the movable plate, and the opening and closing of the movable plate are controlled through the chain, the loading and the rapid loading are realized, the loading time is shortened to within 5 minutes, the loading efficiency, the safety and the precision are remarkably improved, the manpower cost and the heat loss are reduced, and the service life and the economy of the equipment are improved.

Description

Technical Field

[0001] This utility model relates to the field of high-temperature alloy feeding technology, and in particular to a self-opening storage bin for smelting. Background Technology

[0002] In the vacuum induction melting process of high-temperature alloys, various high-melting-point metal raw materials such as nickel, chromium, niobium, and iron need to be added according to specific proportions. In traditional processes, to prevent high-melting-point metal particles from bridging and clogging the feeding port, the various metals must be manually added to the feeding chamber in layers and in sequence. The operation is cumbersome, inefficient, and requires multiple trips back and forth to the feeding chamber, resulting in a total feeding time of more than 30 minutes, which presents significant problems of labor costs and heat loss.

[0003] To improve feeding efficiency and shorten feeding time, a crane is used in conjunction with a hopper for feeding. The hopper has three vertical surfaces fixed to its bottom, forming a "basket" shape with an opening at the top and on the side walls. The hopper is connected to the crane via a lifting chain. In use, the metal raw material needs to be placed in the hopper, and then the height of the chain is adjusted so that the hopper is tilted. The metal raw material slides from the side wall opening into the vacuum induction melting furnace, completing the feeding process.

[0004] However, when using this hopper for feeding, the reduction in feeding time is limited, the crane operation is relatively cumbersome, and it is not easy to align it with the vacuum induction melting furnace. In addition, due to the opening on the side wall of the funnel, metal raw materials are prone to slipping during the transfer process, which can easily lead to safety accidents. Utility Model Content

[0005] Based on the above analysis, the present invention aims to provide a self-opening storage silo for smelting, which shortens the feeding time, significantly improves smelting efficiency, reduces standby heat loss of equipment, and improves safety.

[0006] This utility model provides a self-opening storage silo for smelting. The storage silo includes a silo body with openings at the upper and lower ends. A guide section, which is truncated conical in shape, is connected to the lower end of the silo body. A movable plate is connected to the guide section, with one end of the movable plate being a rotating end and the other end being a free end. The rotating end is rotatably connected to the guide section. The free end is connected to a chain, which is connected to a lifting device.

[0007] Furthermore, the rotatable connection is a hinged connection.

[0008] Furthermore, the taper of the guide section is 20-40°.

[0009] Furthermore, a support leg is fixedly connected to the lower part of the compartment, and the support leg is T-shaped.

[0010] Furthermore, the number of supporting legs is at least three.

[0011] Furthermore, a ring is provided above the hopper body, and the ring is connected to the hopper body via a connecting rod, which is parallel to the horizontal direction.

[0012] Furthermore, the cross-section of the connecting rod is quadrilateral, and the number of connecting rods is two or more.

[0013] Furthermore, a column is provided inside the chamber, one end of which is fixedly connected to the connecting rod, and the other end of which abuts against the movable plate.

[0014] Furthermore, the length of the column is equal to the distance between the movable plate and the connecting rod when the movable plate is horizontal.

[0015] Furthermore, the chain includes a main chain and sub-chains, with one main chain and at least two sub-chains.

[0016] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0017] 1. The self-opening storage silo structure provided by this utility model mainly includes a silo body, a guide section and a movable plate. The opening and closing of the movable plate is controlled by a chain to realize loading and rapid feeding, shortening the feeding time to less than 5 minutes. This significantly improves feeding efficiency, safety and accuracy, reduces labor costs and heat loss, and at the same time improves the service life and economy of the equipment.

[0018] 2. The self-opening storage silo provided by this utility model has a closed bottom, meaning the movable plate is in a closed state during hoisting, forming a complete container. The metal raw materials are completely enclosed inside the silo, fundamentally solving the problem of metal raw materials slipping during transportation and greatly improving the level of safe production.

[0019] 3. This utility model does not require complicated operation of the crane. When feeding, the crane only needs to lower the chain vertically, and the movable plate will open automatically through the chain. The alloy raw material will fall into the vacuum induction melting furnace by gravity. This process is fast, direct and takes very little time.

[0020] In this invention, the above-described technical solutions can be combined with each other to achieve more preferred combinations. Other features and advantages of this invention will be set forth in the following description, and some advantages will become apparent from the description or be learned by practicing the invention. The objectives and other advantages of this invention can be realized and obtained from the description and accompanying drawings, which are particularly pointed out. Attached Figure Description

[0021] The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Throughout the drawings, the same reference numerals denote the same parts.

[0022] Figure 1 This is a schematic diagram of the structure when the storage silo is being filled.

[0023] Figure 2 Schematic diagram of the structure when adding materials to the storage silo;

[0024] Figure 3 This is a schematic diagram showing the connection between the container body, the ring, and the connecting rod.

[0025] Figure label:

[0026] 1. Chamber body; 2. Guide section; 3. Movable plate; 4. Chain; 41. Main chain; 42. Secondary chain; 5. Support leg; 6. Ring; 7. Connecting rod; 8. Column; 9. Platform; 10. Vacuum induction melting furnace. Detailed Implementation

[0027] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0028] In this utility model, "loading" refers to adding alloy raw materials into the storage bin; "adding" refers to adding alloy raw materials from the storage bin into the vacuum induction melting furnace.

[0029] In the vacuum induction melting process of high-temperature alloys, various high-melting-point metal raw materials such as nickel, chromium, niobium, and iron need to be added according to specific proportions. In traditional processes, to prevent high-melting-point metal particles from bridging and clogging the feeding port, the various metals must be manually added to the feeding chamber in layers and in sequence. The operation is cumbersome, inefficient, and requires multiple trips back and forth to the feeding chamber, resulting in a total feeding time of more than 30 minutes, which presents significant problems of labor costs and heat loss.

[0030] To improve feeding efficiency and shorten feeding time, a crane is used in conjunction with a hopper for feeding. The hopper has three vertical surfaces fixed to its bottom, forming a "basket" shape with an opening at the top and on the side walls. The hopper is connected to the crane via a lifting chain. In use, the metal raw material needs to be placed in the hopper, and then the height of the chain is adjusted so that the hopper is tilted. The metal raw material slides from the side wall opening into the vacuum induction melting furnace, completing the feeding process.

[0031] However, when using this hopper for feeding, the reduction in feeding time is limited, the crane operation is relatively cumbersome, and it is not easy to align it with the vacuum induction melting furnace. In addition, due to the opening on the side wall of the funnel, metal raw materials are prone to slipping during the transfer process, which can easily lead to safety accidents.

[0032] Therefore, this utility model provides a self-opening storage silo for smelting, the storage silo including a silo body 1, the upper end and the lower end of the silo body 1 being open; a guide section 2 is connected to the lower end of the silo body 1, the guide section 2 being truncated cone-shaped, a movable plate 3 is connected to the guide section 2, one end of the movable plate 3 being a rotating end and the other end being a free end, the rotating end being rotatably connected to the guide section 2; the free end is connected to a chain 4, the chain 4 being connected to a lifting device.

[0033] Compared with the prior art, the self-opening storage silo structure provided by this utility model, through automated control and optimized design, mainly includes a silo body 1, a guide section 2 and a movable plate 3. The opening and closing of the movable plate 3 is controlled by a chain 4 to realize loading and rapid feeding, which can shorten the feeding time to less than 5 minutes. This significantly improves feeding efficiency, safety and accuracy, reduces labor costs and heat loss, and at the same time improves the service life and economy of the equipment.

[0034] Specifically, the rotating connection is a hinged connection.

[0035] Specifically, the cross-section of the compartment 1 is quadrilateral or circular.

[0036] It should be noted that in this invention, when the cross-section of the silo 1 is quadrilateral, the space utilization rate can be maximized, facilitating the stacking and loading of alloy raw materials. Since alloy raw materials are mostly in block, ingot, or geometrically shaped form, more alloy raw materials can be loaded at a time, improving the efficiency of single-load feeding. At the same time, the rectangular cross-section of the storage silo facilitates placement and storage, without wasting space.

[0037] In this invention, when the cross-section of the silo 1 is circular, the circular cross-section allows for a uniform distribution of stress across the entire circumference when subjected to internal material lateral pressure and external forces, avoiding stress concentration at the corners of a rectangular cross-section. Rectangular silos 1 are prone to residue and accumulation of alloy raw materials at their four corners. In contrast, the circular silo 1 has a smooth interior without dead corners, allowing all alloy raw materials to smoothly slide towards the central outlet under the guidance of the guide section 2 and their own gravity, resulting in cleaner and more thorough unloading.

[0038] In addition, the center of gravity and centroid of the circular hopper 1 are easier to keep in line. When it is hoisted with the chain 4, its sway is less than that of the rectangular hopper 1, and its aerial posture is more stable, which further enhances the safety of the transfer process.

[0039] Specifically, the taper of the guide section 2 is 20-40°.

[0040] It should be noted that in this utility model, the guide section 2 is a truncated cone shape, which can quickly guide the alloy raw material from the bin 1 into the vacuum induction melting furnace 10 under its own weight. The alloy raw material can be completely and thoroughly discharged, reducing residue and avoiding contamination between different batches of alloy raw materials.

[0041] In this invention, the taper of the guide section 2 needs to be controlled between 20-40°. When the taper of the guide section 2 is greater than 40°, the slope is too gentle, and the friction between the alloy material and the guide section 2 may exceed the component of gravity, causing the material to fail to slide off automatically or slide off poorly. This is especially problematic for rough, sticky metal materials, leading to incomplete unloading. When the taper of the guide section 2 is less than 20°, the slope is too steep. While this improves flowability, it reduces storage capacity and increases structural height. An overly steep guide section 2 will excessively encroach on the effective volume inside the silo 1, reducing the amount of material that can be stored at one time and lowering efficiency. Furthermore, to achieve a steeper angle, the longitudinal height of the guide section 2 needs to be increased, potentially making the entire storage silo too long and thin, affecting stability and ease of operation.

[0042] Specifically, a support leg 5 is fixedly connected to the lower part of the compartment 1, and the support leg 5 is T-shaped.

[0043] Specifically, the number of the supporting legs 5 is at least three.

[0044] It should be noted that, in order to facilitate the opening of the movable plate 3 and control the distance between the movable plate 3 and the vacuum induction melting furnace, a support leg 5 needs to be connected to the bottom of the hopper body 1. The support leg 5 includes a vertical rod and a horizontal rod. One end of the vertical rod is connected to the center of the horizontal rod, and the other end is connected to the hopper body 1. The vertical rod and the horizontal rod form a T-shape. The horizontal rod contacts the ground or the platform 9 (the platform 9 refers to a plane higher than the vacuum induction melting furnace 10). There are at least three support legs 5, making the storage hopper more stable during loading and feeding.

[0045] Specifically, a ring 6 is provided above the chamber 1, and the ring 6 is connected to the chamber 1 through a connecting rod 7, which is parallel to the horizontal direction.

[0046] Preferably, the cross-section of the connecting rod 7 is quadrilateral, and the number of connecting rods 7 is two or more.

[0047] It should be noted that in this utility model, a ring 6 is provided above the bin body 1. The chain 4 passes through the ring 6, and the ring 6 can limit the chain 4, so that the ring 6, the bin body 1 and the chain 4 remain coaxial, avoiding structural deformation or jamming that may be caused by directly applying the lifting force to a certain side or a certain point of the bin body 1.

[0048] To fix the ring 6, it needs to be connected to the hopper 1 via connecting rods 7. That is, one end of the connecting rod 7 is fixed to the ring 6, and the other end of the connecting rod 7 is fixed to the hopper 1, ensuring that the hopper 1 and the ring 6 are coaxial. To ensure the stability of the ring 6, there should be more than two connecting rods 7, preferably four, and the four connecting rods 7 should be in a cross shape. However, the number should not be too large, otherwise it will hinder the loading.

[0049] Specifically, a column 8 is provided inside the hopper 1. One end of the column 8 is fixedly connected to the connecting rod 7, and the other end of the column 8 abuts against the movable plate 3. The length of the column 8 is equal to the distance between the movable plate 3 and the connecting rod 7 when the movable plate 3 is horizontal.

[0050] It should be noted that in this invention, a column 8 needs to be installed inside the hopper 1. The purpose of this is to prevent the movable plate 3 from rotating excessively. That is, when the tension of the chain 4 exceeds the weight, the movable plate 3 will no longer be horizontal and will flip into the hopper 1, causing leakage of the alloy raw materials. Therefore, the function of the column 8 is to limit movement. One end of the column 8 is fixed to the connecting rod 7, and the other end is in contact with the movable plate 3 but not fixed, ensuring that the movable plate 3 remains horizontal during loading. The length of the column 8 is adjusted according to the distance between the movable plate 3 and the connecting rod 7, as long as the movable plate 3 remains horizontal during loading.

[0051] Preferably, there are four columns 8, which are evenly arranged along the circumference of the silo body 1.

[0052] A further preferred embodiment is that a flat plate is fixed to the end of the column 8 away from the connecting rod 7, which can increase the contact area and make the force more uniform.

[0053] Specifically, the chain 4 includes a main chain 41 and a secondary chain 42, with one main chain 41 and at least two secondary chains 42.

[0054] It should be noted that in this utility model, the rotation of the movable plate 3 can be adjusted or controlled by the rising and falling of the chain 4, thereby realizing the closing and opening of the bin 1. That is, during the loading process, the movable plate 3 is in a horizontal state, forming a closed environment with the bin 1, ensuring that the alloy raw material is inside the bin 1 and improving safety; during the feeding process, the movable plate 3 is in an inclined state, forming a non-closed environment with the bin 1, so that the alloy raw material can quickly slide from the bin 1 into the vacuum induction melting furnace 10.

[0055] In this invention, the chain 4 is composed of a main chain 41 and a secondary chain 42. The main chain 41 is connected to the crane, and the secondary chain 42 is connected to the lower end of the main chain 41. The secondary chain 42 is then connected to the movable plate 3. Therefore, the rotation of the movable plate 3 can be controlled through chain drive to achieve opening and closing.

[0056] Loading process:

[0057] The hopper 1 is placed on the ground and supported by the support legs 5. As the chain 4 rises, the main chain 41 drives the secondary chain 42, which in turn drives the movable plate 3 to rotate along the hinge axis between the movable plate 3 and the guide section 2. At this time, the movable plate 3 is in a horizontal state and abuts against the lower end of the column 8, limiting its movement and preventing excessive tipping.

[0058] The alloy raw materials are added from the top of the chamber 1. The order of adding the raw materials can be adjusted according to the actual ratio. After all the alloy raw materials are added, the loading process is complete.

[0059] Feeding process:

[0060] The crane is started to transfer the storage bin containing the alloy raw materials to the top of the vacuum induction melting furnace 10. The storage bin is placed on the platform 9 by the downward movement of the chain 4, and the support leg 5 contacts the platform 9. The chain 4 continues to descend, and the main chain 41 drives the secondary chain 42 to continue to descend. At this time, the weight of the alloy raw materials is greater than the tension of the chain 4, and the movable plate 3 rotates downward along the hinge axis between the movable plate 3 and the guide section 2, creating an opening between the movable plates 3. The chain 4 continues to descend, and the opening gradually widens. All the alloy raw materials are added from the bin 1 into the vacuum induction melting furnace 10, completing the feeding process.

[0061] Then, chain 4 is raised. As chain 4 rises, the main chain 41 drives the secondary chain 42, which in turn drives the movable plate 3 to rotate along the hinge axis between the movable plate 3 and the guide section 2. At this time, the movable plate 3 is in a horizontal state and abuts against the lower end of the column 8, limiting its movement and preventing excessive overturning. The storage bin is then transferred via chain 4.

[0062] To more clearly describe this utility model, the following embodiments and comparative examples are provided for further illustration.

[0063] Example 1

[0064] Reference Figure 1-3This embodiment provides a self-opening storage silo for smelting. The storage silo includes a silo body 1 with a quadrilateral or circular cross-section, and both the upper and lower ends of the silo body 1 are open. A guide section 2 is provided at the lower end of the silo body 1. The guide section 2 is truncated conical and has a taper of 30°. A movable plate 3 is connected to the guide section 2. One end of the movable plate 3 is a rotating end, and the other end is a free end. The rotating end is rotatably connected to the guide section 2. The rotatable connection is a hinged shaft. The free end is connected to a chain 4, which is connected to a lifting device. The chain 4 includes a main chain 41 and two secondary chains 42. The main chain 41 is connected to a crane, and the secondary chains 42 are connected to the lower end of the main chain 41. The secondary chains 42 are then connected to the movable plate 3.

[0065] A circular ring 6 is provided above the hopper body 1. The circular ring 6 is connected to the hopper body 1 through a connecting rod 7. The connecting rod 7 is parallel to the horizontal direction, and the cross-section of the connecting rod 7 is quadrilateral. There are 4 connecting rods 7. A column 8 is provided inside the hopper body 1. One end of the column 8 is fixed to the connecting rod 7, and the other end of the column 8 abuts against the movable plate 3. The length of the column 8 is equal to the distance between the movable plate 3 and the connecting rod 7 when the movable plate 3 is horizontal.

[0066] The lower part of the compartment 1 is fixedly connected to support legs 5, which are T-shaped and there are 3 support legs 5.

[0067] Loading process:

[0068] The hopper 1 is placed on the ground and supported by the support legs 5. As the chain 4 rises, the main chain 41 drives the secondary chain 42, which in turn drives the movable plate 3 to rotate along the hinge axis between the movable plate 3 and the guide section 2. At this time, the movable plate 3 is in a horizontal state and abuts against the lower end of the column 8, limiting its movement and preventing excessive tipping.

[0069] The alloy raw materials are added from the top of the chamber 1. The order of adding the raw materials can be adjusted according to the actual ratio. After all the alloy raw materials are added, the loading process is complete.

[0070] Feeding process:

[0071] The crane is started to transfer the storage bin containing the alloy raw materials to the top of the vacuum induction melting furnace 10. The storage bin is placed on the platform 9 by the downward movement of the chain 4, and the support leg 5 contacts the platform 9. The chain 4 continues to descend, and the main chain 41 drives the secondary chain 42 to continue to descend. At this time, the weight of the alloy raw materials is greater than the tension of the chain 4, and the movable plate 3 rotates downward along the hinge axis between the movable plate 3 and the guide section 2, creating an opening between the movable plates 3. The chain 4 continues to descend, and the opening gradually widens. All the alloy raw materials are added from the bin 1 into the vacuum induction melting furnace 10, completing the feeding process.

[0072] Then, chain 4 is raised. As chain 4 rises, the main chain 41 drives the secondary chain 42, which in turn drives the movable plate 3 to rotate along the hinge axis between the movable plate 3 and the guide section 2. At this time, the movable plate 3 is in a horizontal state and abuts against the lower end of the column 8, limiting its movement and preventing excessive overturning. The storage bin is then transferred via chain 4.

[0073] The self-opening storage silo structure provided by this utility model mainly includes a silo body 1, a guide section 2, and a movable plate 3. The opening and closing of the movable plate 3 is controlled by a chain 4 to realize loading and rapid feeding, which can shorten the feeding time to less than 5 minutes. This significantly improves feeding efficiency, safety and accuracy, reduces labor costs and heat loss, and improves the service life and economy of the equipment.

[0074] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model should be included within the protection scope of the present utility model.

Claims

1. A self-opening storage silo for use in smelting, characterized in that, The storage bin includes a bin body (1) with openings at the upper and lower ends; a guide section (2) is connected to the lower end of the bin body (1), the guide section (2) is a truncated cone shape, a movable plate (3) is connected to the guide section (2), one end of the movable plate (3) is a rotating end and the other end is a free end, the rotating end is rotatably connected to the guide section (2); the free end is connected to a chain (4), and the chain (4) is connected to a lifting device.

2. The self-opening storage silo for smelting according to claim 1, characterized in that, The rotating connection is a hinged shaft connection.

3. The self-opening storage silo for smelting according to claim 1, characterized in that, The taper of the guide section (2) is 20-40°.

4. The self-opening storage silo for smelting according to claim 1, characterized in that, The lower part of the compartment (1) is fixedly connected to a support leg (5), which is T-shaped.

5. The self-opening storage silo for smelting according to claim 4, characterized in that, The number of the supporting legs (5) is at least 3.

6. The self-opening storage silo for smelting according to claim 1, characterized in that, A ring (6) is provided above the hopper (1), and the ring (6) is connected to the hopper (1) by a connecting rod (7), which is parallel to the horizontal direction.

7. The self-opening storage silo for smelting according to claim 6, characterized in that, The cross-section of the connecting rod (7) is quadrilateral, and the number of connecting rods (7) is more than two.

8. The self-opening storage silo for smelting according to claim 6, characterized in that, A column (8) is provided inside the silo (1). One end of the column (8) is fixedly connected to the connecting rod (7), and the other end of the column (8) abuts against the movable plate (3).

9. A self-opening storage silo for smelting according to claim 8, characterized in that, The length of the column (8) is equal to the distance between the movable plate (3) and the connecting rod (7) when the movable plate (3) is horizontal.

10. A self-opening storage silo for smelting according to claim 1, characterized in that, The chain (4) includes a main chain (41) and a secondary chain (42), wherein there is one main chain (41) and at least two secondary chains (42).

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