A smelting furnace charging device and a smelting system

Abstract

The application relates to the technical field of metal smelting equipment, in particular to a smelting furnace feeding device and a smelting system, which have the following technical scheme: a storage bin is used for storing raw materials; a conveying mechanism is connected with the storage bin and is used for conveying the raw materials from the storage bin to outside; a rotary weighing mechanism is used for temporarily storing the raw materials and weighing the raw materials; and a feeding mechanism is matched with the rotary weighing mechanism, when the weight of the raw materials on the rotary weighing mechanism exceeds a threshold value, the rotary weighing mechanism pours the raw materials into the feeding mechanism, and the feeding mechanism is used for feeding the raw materials into a smelting furnace. The application solves the problems of low feeding efficiency, hidden safety hazards and extensive feeding process control in the feeding process.

Description

Technical Field

[0001] This invention relates to the technical field of metal smelting equipment, and more particularly to a smelting furnace feeding device and a smelting system. Background Technology

[0002] Resin sand casting is a process in which solid metal is melted into a liquid state and then poured into a resin sand mold of a specific shape, where it solidifies and takes shape. It is particularly suitable for constructing large wind power castings and has good processing efficiency and quality.

[0003] In the casting process, feeding is a key step in the smelting process. Raw materials such as pig iron and scrap steel need to be put into the smelting furnace, which heats the raw materials to form molten iron for casting. The operation method and process control directly affect the quality of the molten metal, the smelting efficiency and the mechanical properties of the final casting.

[0004] Currently, there are still many shortcomings in the feeding operation of traditional casting and smelting furnaces. Among them, the feeding method mainly relies on manual operation, which is labor-intensive and poses safety hazards. In addition, the feeding process is crude and it is difficult to control the amount of material fed, which affects the smelting effect. Therefore, it is necessary to improve the existing technology.

[0005] The above information is provided as background information only to aid in understanding this disclosure and does not constitute an assertion or admission that any of the above content can be used as prior art relative to this disclosure. Summary of the Invention

[0006] This invention provides a smelting furnace feeding device and a smelting system to solve the problems of low feeding efficiency, safety hazards, and crude feeding process control in the prior art.

[0007] To achieve the above objectives, in a first aspect, the present invention provides a smelting furnace feeding device employing the following technical solution:

[0008] A smelting furnace charging device and a smelting system, comprising:

[0009] Storage silos are used to store raw materials;

[0010] A conveying mechanism, connected to the storage bin, is used to transport raw materials from inside the storage bin to outside the storage bin;

[0011] A rotary weighing mechanism, wherein the conveying mechanism is used to transfer raw materials into the rotary weighing mechanism, and the rotary weighing mechanism is used to temporarily store the raw materials and weigh them;

[0012] The material feeding mechanism works in conjunction with the rotary weighing mechanism. When the weight of the raw material on the rotary weighing mechanism exceeds a threshold, the rotary weighing mechanism pours the raw material onto the feeding mechanism, which is used to feed the raw material into the smelting furnace.

[0013] Preferably, the rotary weighing mechanism includes:

[0014] The first weighing component is set on the ground to obtain the first weight value;

[0015] A support bracket is mounted on the first weighing component;

[0016] A rotating hopper is rotatably mounted on the support frame, and the rotating hopper is provided with several receiving sections for storing raw materials;

[0017] The power assembly is disposed on the bracket and connected to the rotating hopper. The power assembly is used to drive the rotating hopper to rotate so that the receiving portion is vertically upward to carry raw materials from the conveying mechanism, or, when a first weight value is greater than a threshold, the power assembly is used to flip the receiving portion to the horizontal side so that the raw materials are poured to the feeding mechanism.

[0018] Preferably, the rotary weighing mechanism further includes:

[0019] The guide sleeve is fixedly installed on the ground and is installed vertically.

[0020] And a guide rod, which is fixedly mounted on the bracket and slidably mounted on the guide sleeve.

[0021] Preferably, the first weighing component includes:

[0022] The base is set on the ground;

[0023] The weighing platform is movably disposed within the base, and the support is disposed on the weighing platform;

[0024] A first weight sensor is disposed on the base and connected to the weighing platform to obtain the added weight of the raw materials.

[0025] Preferably, the feeding mechanism includes:

[0026] A transfer silo, wherein the rotary weighing mechanism is used to pour raw materials into the transfer silo;

[0027] The feeding conveyor belt is connected at one end to the transfer bin and extends to the smelting furnace at the other end;

[0028] And a swing mechanism, located at the other end of the feeding conveyor belt, is used to evenly spread the raw materials in the smelting furnace.

[0029] Preferably, the swing mechanism includes:

[0030] A discharge hopper is rotatably mounted on the feeding conveyor belt, which is used to feed raw materials into the discharge hopper and has an inclined discharge port.

[0031] A toothed ring is fixedly installed in the discharge funnel;

[0032] A drive motor is fixedly mounted on the feeding conveyor belt;

[0033] And a gear, fixedly mounted on the drive motor and meshing with the gear ring, is used to drive the gear ring to rotate the discharge funnel so that the discharge port rotates eccentrically.

[0034] Preferably, it also includes a track mechanism, the track mechanism comprising:

[0035] Ground rails are installed on the ground.

[0036] And a rail flatbed cart, which is movably mounted on the ground rail, and the feeding mechanism is mounted on the rail flatbed cart. The rail flatbed cart is used to drive the feeding mechanism to adjust its displacement and send the raw materials into different smelting furnaces.

[0037] Preferably, it also includes an auxiliary material feeding mechanism, the auxiliary material feeding mechanism comprising:

[0038] Mounting rack, placed on the ground;

[0039] A storage bin is provided on the mounting frame and above the feeding mechanism. The bottom of the storage bin is provided with a discharge port, and an opening and closing valve is installed at the discharge port.

[0040] The second weighing component is connected to the mounting frame and the storage bin respectively, and is used to obtain a second weight value. The opening and closing valve controls the opening and closing of the discharge port with reference to the second weight value.

[0041] Preferably, it further includes a crushing mechanism, the crushing mechanism comprising:

[0042] The crushing chamber is located on the ground.

[0043] The first crushing roller is rotatably mounted in the crushing chamber;

[0044] The second crushing roller is rotatably disposed in the crushing chamber and is parallel to the first crushing roller. The first crushing roller and the second crushing roller are connected in a driving connection.

[0045] A drive assembly is provided in the crushing chamber and connected to the first crushing roller, for driving the first crushing roller and the second crushing roller to rotate synchronously.

[0046] Secondly, the present invention provides a smelting system employing the following technical solution:

[0047] A smelting system includes the smelting furnace feeding device described above, and also includes a furnace body that cooperates with the smelting furnace feeding device.

[0048] Compared with the prior art, the present invention has the following beneficial effects:

[0049] The smelting furnace feeding device and smelting system provided by this invention have a storage bin that can centrally store raw materials. Under the action of the conveying mechanism, the raw materials in the storage bin can be conveyed to the rotary weighing mechanism. On the one hand, the rotary weighing mechanism can weigh the raw materials. On the other hand, after reaching the weight threshold, the appropriate weight of raw materials can be poured onto the feeding mechanism, which then sends the raw materials into the smelting furnace. The above process can effectively reduce manual intervention, improve feeding efficiency, avoid molten iron splashing on the human body, and accurately control the amount of raw materials fed. It improves the problem of rough operation, low feeding efficiency, safety hazards, and rough control of the feeding process, and optimizes and solves the problems.

[0050] The present invention has other features and advantages, which will be apparent from or will be set forth in detail in the accompanying drawings and the following detailed description, which together serve to explain the particular principles of the invention. Attached Figure Description

[0051] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0052] Figure 1 This is a schematic diagram of the structure of the smelting furnace feeding system provided in an embodiment of the present invention;

[0053] Figure 2 This is a schematic diagram of the structure of the transportation mechanism, rotary weighing mechanism and crushing mechanism provided in the embodiments of the present invention;

[0054] Figure 3 This is a cross-sectional view of the first weighing component provided in an embodiment of the present invention;

[0055] Figure 4 This is a schematic diagram of the feeding mechanism and track mechanism provided in an embodiment of the present invention;

[0056] Figure 5This is a schematic diagram of the swing mechanism provided in an embodiment of the present invention;

[0057] Figure 6 This is a schematic diagram of the auxiliary material feeding mechanism provided in an embodiment of the present invention.

[0058] Figure label:

[0059] 1. Storage warehouse;

[0060] 2. Conveying mechanism;

[0061] 3. Rotary weighing mechanism;

[0062] 31. First weighing assembly; 311. Base; 312. Weighing platform; 313. First weight sensor; 314. Spring element;

[0063] 32. Bracket;

[0064] 33. Rotating hopper; 331. Main shaft; 332. Hopper body;

[0065] 34. Power components;

[0066] 35. Guide sleeve; 36. Guide rod;

[0067] 4. Feeding mechanism; 41. Transfer bin; 42. Feeding conveyor belt; 43. Swinging mechanism; 431. Discharge hopper; 432. Gear ring; 433. Drive motor; 434. Gear;

[0068] 5. Crushing mechanism; 51. Crushing chamber; 52. First crushing roller; 53. Second crushing roller; 54. Drive assembly; 55. First linkage gear; 56. Second linkage gear;

[0069] 6. Track mechanism; 61. Ground track; 62. Track flatbed car;

[0070] 7. Auxiliary material feeding mechanism; 71. Mounting frame; 72. Storage bin; 73. Second weighing component; 74. Opening and closing valve. Detailed Implementation

[0071] To make the objectives, features, and advantages of this invention more apparent and understandable, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0072] In the description of this invention, it should be understood that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component present simultaneously. When a component is considered to be "set" on another component, it can be directly set on the other component or there may be an intermediate component present simultaneously.

[0073] Furthermore, terms such as “long,” “short,” “inner,” and “outer” indicate orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings. They are used only for the purpose of describing the present invention and are not intended to indicate or imply that the device or component referred to must have this specific orientation or operate in a specific orientational configuration. Therefore, they should not be construed as limitations of the present invention.

[0074] The following is in conjunction with the appendix Figure 1-6 The technical solution of the present invention will be further illustrated through specific embodiments.

[0075] Please refer to Figure 1 and Figure 2 The present invention provides a smelting furnace feeding device and a smelting system, including a storage bin 1, a conveying mechanism 2, a rotary weighing mechanism 3 and a feeding mechanism 4.

[0076] Storage silo 1 is used to store raw materials. Conveying mechanism 2 is connected to storage silo 1 and is used to send raw materials from inside storage silo 1 to outside storage silo 1. Conveying mechanism 2 is used to transfer raw materials to rotary weighing mechanism 3. Rotary weighing mechanism 3 is used to temporarily store raw materials and weigh them. Feeding mechanism 4 cooperates with rotary weighing mechanism 3. When the weight of raw materials on rotary weighing mechanism 3 exceeds a threshold, rotary weighing mechanism 3 pours the raw materials to feeding mechanism 4. Feeding mechanism 4 is used to send raw materials into smelting furnace.

[0077] Storage silo 1 has a hollow interior and an open top. The bottom of storage silo 1 has a discharge hole, and the silo wall is equipped with a vibrator to prevent raw materials from bridging. It should be explained that the raw materials mainly include pig iron, scrap steel and other raw materials. In this case, storage silo 1 can be used for centralized storage of raw materials. Under the action of gravity, the raw materials are discharged through the discharge hole at the bottom of storage silo 1 for continuous use.

[0078] In some embodiments, the conveying mechanism 2 is a belt conveyor, which is a friction-driven continuous transport device. Its working process is to provide power through a drive device, and use the friction between the drive drum and the conveyor belt to drive the belt to run in a cycle. With the support of the idler rollers, the adjustment of the tensioning device, and the guiding effect of the drum, the material is continuously and efficiently transported. The specific setting of the belt conveyor will not be described in detail here. The conveying mechanism 2 is fixedly installed on the ground, and one end of the conveying mechanism 2 extends below the discharge hole. By starting the conveying mechanism 2, the raw materials can be stored and taken away from the storage bin 1 under the rotation of the belt.

[0079] In addition, the rotary weighing mechanism 3 is set on the ground and located below the other end of the conveying mechanism 2. The conveying mechanism 2 can transport raw materials from the storage bin 1 to the rotary weighing mechanism 3. The rotary weighing mechanism 3 has a weighing function. At this time, a threshold for the weight of the feed material can be set in advance. When the weight of the raw material on the rotary weighing mechanism 3 is greater than the threshold, the rotary weighing mechanism 3 will pour the weighed raw material onto the feeding mechanism 4.

[0080] Meanwhile, the feeding mechanism 4 is located between the rotary weighing mechanism 3 and the smelting furnace. The feeding mechanism 4 transports the weighed raw materials to the smelting furnace to realize the feeding action. In some embodiments, the feeding mechanism 4 can be a belt conveyor. Its specific structure will not be described in detail here. This can realize the efficient feeding function of raw materials.

[0081] Furthermore, in order to achieve automated coordination of mechanisms such as storage bin 1, conveying mechanism 2, rotary weighing mechanism 3 and feeding mechanism 4, in some embodiments, a PLC controller can be used to achieve automatic control.

[0082] Specifically, the PLC controller is connected to a touch panel for operation. Storage bin 1, conveying mechanism 2, rotary weighing mechanism 3, and feeding mechanism 4 are all electrically connected to the PLC controller. The PLC controller has preset control logic, operation procedures, and other control instructions. Its specific control steps are as follows:

[0083] Raw material storage: The raw materials are stored in storage bin 1 in advance, and the vibrator is started to prevent the raw materials from clogging the discharge hole. The raw materials fall into the conveying mechanism 2 through the discharge hole.

[0084] In the initial transportation process, the touch panel is operated to output a start command. The PLC controller starts the conveying mechanism 2 based on the start command, and the conveying mechanism 2 transports the raw materials into the rotary weighing mechanism 3.

[0085] The rotary weighing mechanism 3 is equipped with a weight sensor to monitor weight changes and determine the amount of raw material to be added. The PLC controller program has a preset threshold. When the weight reaches the threshold, the PLC controller controls the conveying mechanism 2 to stop. After a 3-second delay to wait for the weighing to stabilize, the PLC controller drives the rotary weighing mechanism 3 to rotate and pour the raw material into the feeding mechanism 4. After pouring is complete, the PLC controller controls the rotary weighing mechanism 3 to return to its original position, the weighing value is reset to zero, and preparations are made for the next cycle.

[0086] Before the furnace is fed, the PLC controller controls the feeding mechanism 4 to start after receiving the reset completion signal, and transports the raw materials to the smelting furnace until the raw materials are fed.

[0087] Based on the above settings, automated control functions for actions such as material discharge, weighing, and feeding can be achieved. It should be noted that since how to achieve automated control is not the focus of this solution, its specific detailed parameters will not be elaborated. As long as the control method that enables the mutual cooperation between the various mechanisms can be achieved, it should be included in the scope of this solution.

[0088] The smelting furnace feeding device and smelting system provided in this application embodiment, under the action of the conveying mechanism 2, can transport the raw materials in the storage bin 1 to the rotary weighing mechanism 3. The rotary weighing mechanism 3 can weigh the raw materials to accurately control the amount of raw materials fed, and automatically send the amount of raw materials into the feeding mechanism. Then, the feeding mechanism 4 sends the appropriate weight of raw materials into the smelting furnace. The above process can effectively reduce manual intervention, improve feeding efficiency, and avoid molten iron splashing on the human body. It can accurately control the amount of raw materials fed, improve rough operation, and optimize and solve the problems of low feeding efficiency, safety hazards and rough feeding process control.

[0089] In some embodiments, refer to Figure 2 The rotary weighing mechanism 3 includes a first weighing component 31, a support 32, a rotary hopper 33, and a power component 34.

[0090] The first weighing component 31 is set on the ground to obtain a first weight value. The support 32 is set on the first weighing component 31. The rotating hopper 33 is rotatably set on the support 32. The rotating hopper 33 is provided with several receiving parts for storing raw materials. The power component 34 is set on the support 32 and connected to the rotating hopper 33.

[0091] The power assembly 34 is used to drive the rotating hopper 33 to rotate so that the receiving part is vertically upward to carry the raw material from the conveying mechanism 2, or, when the first weight value is greater than the threshold, the power assembly 34 is used to flip the receiving part to the horizontal side so that the raw material is poured to the feeding mechanism 4.

[0092] Specifically, the first weighing component 31 is connected to the PLC controller. After acquiring the first weight value, the first weighing component 31 sends the first weight value to the PLC controller. The PLC controller compares the first weight value with a threshold value to make a judgment.

[0093] Based on this, the rotating hopper 33 includes a main shaft 331 and a hopper body 332. The main shaft 331 is rotatably mounted on the support 32 in the horizontal direction. Typically, the support 32 is provided with a bearing seat, and the end of the main shaft 331 is rotatably mounted on the bearing seat to achieve rotatable mounting.

[0094] In addition, the hopper body 332 has an open structure, and multiple hopper bodies 332 are provided. The multiple hopper bodies 332 are evenly arranged along the circumferential direction of the main shaft 331. At this time, the multiple hopper bodies 332 form a receiving part for temporarily storing raw materials.

[0095] At this time, during the rotation of the spindle 331, the receiving part includes at least two position states:

[0096] In the first state, the opening of the hopper body 332 is set vertically upward, which allows it to carry raw materials.

[0097] In the second state, the opening of the hopper body 332 is flipped to the side facing the horizontal direction so that the raw material can be poured out of the opening.

[0098] It should be explained that the specific number of hopper bodies 332 can be adjusted according to actual needs, and no specific limit is made here. In this embodiment, the number of hopper bodies 332 is three as an example.

[0099] At this time, by setting multiple hopper bodies 332, the efficiency of the operation can be improved. For example, one hopper body 332 can perform the tilting action, while another hopper body 332 can move to the bottom of the conveying mechanism 2. The remaining hopper body 332 is reserved to wait for the next cycle to receive raw materials and wait for the next batch of raw materials to arrive. This is equivalent to omitting the reset action, saving action steps, and thus optimizing the efficiency of the operation.

[0100] Furthermore, in some embodiments, the power component 34 adopts a geared motor structure, the power component 34 is fixedly installed on the bracket 32, the power component 34 is connected to the PLC controller, and the PLC controller sends control commands to the power component 34 to control its start and stop operation.

[0101] Furthermore, the output shaft of the power assembly 34 is connected to the main shaft 331. Typically, the output shaft and the main shaft 331 are connected by a coupling. The power assembly 34 can output torque to make the rotating hopper 33 rotate.

[0102] By adopting the above configuration, the support 32 can provide stable support for the rotating hopper 33 and the power component 34. Under the action of the power component 34, the rotating hopper 33 can be driven to rotate stably and continuously transfer raw materials. In this process, by placing the support 32 on the first weighing component 31, the actual input of raw materials can be obtained quickly and accurately.

[0103] Furthermore, referring to Figure 3 In some embodiments, the first weighing component 31 includes a base 311, a weighing platform 312, and a first weight sensor 313.

[0104] The base 311 is set on the ground, the weighing platform 312 is movably set inside the base 311, the bracket 32 ​​is set on the weighing platform 312, and the first weight sensor 313 is set on the base 311 and connected to the weighing platform 312 to obtain the added weight of the raw materials.

[0105] Specifically, the base 311 is buried in a pit in the ground. The base 311 has a cavity inside and an open structure at the top. The first weight sensor 313 includes 4-6 bridge sensors. The multiple bridge sensors are evenly installed on the inner wall of the base 311. Furthermore, the weighing platform 312 has a plate-like outline. The weighing platform 312 is placed inside the base 311 and presses down on the first weight sensor 313. The bracket 32 ​​is placed on the weighing platform 312.

[0106] In addition, in some embodiments, the first weighing assembly 31 further includes a spring element 314, which is mounted on the base 311 and connected to the weighing platform 312. The spring element 314 can provide elastic support for the weighing platform 312 to reduce the impact of weight on the weighing platform 312, reduce the possibility of deformation of the weighing platform 312, and thus improve its service life.

[0107] Based on the above settings, when the raw material is put into the rotary weighing mechanism 3, the weight of the raw material will press down on the first weight sensor 313 through the weighing platform 312, so that the first weight sensor 313 can obtain the weight change value, which is the weight of the raw material. Thus, the amount of raw material put in can be quickly known, and the accurate weighing function can be realized. In addition, the base 311 can provide stable structural support for the weighing platform 312 and the first weight sensor 313, making the weighing value more accurate.

[0108] Furthermore, looking back Figure 2 The rotary weighing mechanism 3 also includes a guide sleeve 35 and a guide rod 36.

[0109] The guide sleeve 35 is fixedly installed on the ground and is vertically arranged, while the guide rod 36 is fixedly installed on the bracket 32 ​​and is slidably installed on the guide sleeve 35.

[0110] Specifically, the guide sleeve 35 has a circular sleeve structure and is set vertically. A fixing plate is fixedly installed at the lower end of the guide sleeve 35. The end of the guide sleeve 35 with the fixing plate is embedded in the ground, and the fixing plate fixes and limits the guide sleeve 35 on the ground.

[0111] Meanwhile, the guide rod 36 has a round profile, and the outer dimensions of the guide rod 36 are adapted to the inner diameter of the guide sleeve 35. The guide rod 36 is inserted into the guide sleeve 35 in the vertical direction, and the guide rod 36 is fixedly connected to the bracket 32. At this time, lubricating oil can be filled between the guide sleeve 35 and the guide rod 36 to facilitate the sliding cooperation between the two.

[0112] Based on the above settings, when the raw material is poured into the rotating hopper 33, the raw material itself has a large weight, which will cause the support 32 to float. At this time, under the cooperation of the guide sleeve 35 and the guide rod 36, the lifting and floating motion of the support 32 can be guided, thereby avoiding the off-center loading of the rotating weighing mechanism 3, making the trajectory of the weighing action more stable, and improving the accuracy of the weighing data.

[0113] Furthermore, during the actual feeding process, some raw materials may contain large lumps, which may impact the smelting furnace or other mechanisms, causing structural damage, and may also affect the uniformity of raw material feeding.

[0114] Based on this, refer to Figure 2 It also includes a crushing mechanism 5, which includes a crushing chamber 51, a first crushing roller 52, a second crushing roller 53, and a drive assembly 54.

[0115] The crushing chamber 51 is set on the ground. The first crushing roller 52 is rotatably set in the crushing chamber 51. The second crushing roller 53 is rotatably set in the crushing chamber 51 and is parallel to the first crushing roller 52. The first crushing roller 52 and the second crushing roller 53 are connected by a drive. The drive assembly 54 is set in the crushing chamber 51 and connected to the first crushing roller 52, and is used to drive the first crushing roller 52 and the second crushing roller 53 to rotate synchronously.

[0116] Specifically, the crushing chamber 51 is hollow inside, with open structures at the top and bottom. The crushing chamber 51 can usually be installed on the ground by adding a bracket, without specific restrictions. The crushing chamber 51 is located below the conveying mechanism 2 and above the rotary weighing mechanism 3. At this time, the top opening of the crushing chamber 51 is opposite to the conveying mechanism 2, and the bottom opening of the crushing chamber 51 is opposite to the rotary weighing mechanism 3. The raw material will pass through the crushing chamber 51 during the process of being transferred from the conveying mechanism 2 to the rotary weighing mechanism 3.

[0117] Meanwhile, the first crushing roller 52 and the second crushing roller 53 are similar in shape, both being long shaft structures with crushing teeth protruding on their surfaces. At this time, the two ends of the first crushing roller 52 are rotatably mounted in the crushing chamber 51 through bearings, and correspondingly, the two ends of the second crushing roller 53 are also rotatably mounted in the crushing chamber 51 through bearings. The crushing teeth of the first crushing roller 52 and the crushing teeth of the second crushing roller 53 interlock and mesh with each other. When the raw material enters the crushing chamber 51, it can be further shredded by the crushing teeth.

[0118] Based on this, a first linkage gear 55 is fixedly installed on the first crushing roller 52, and a second linkage gear 56 that meshes with the first linkage gear 55 is fixedly installed on the second crushing roller 53. With the cooperation of the first linkage gear 55 and the second linkage gear 56, the first crushing roller 52 and the second crushing roller 53 are linked together.

[0119] Meanwhile, the drive assembly 54 adopts a geared motor assembly. The drive assembly 54 is installed in the crushing chamber 51, and its output shaft is connected to the first crushing roller 52 through a coupling.

[0120] Based on the above configuration, the drive assembly 54 can drive the first crushing roller 52 to rotate. With the cooperation of the first linkage gear 55 and the second linkage gear 56, it can drive the second crushing roller 53 to rotate synchronously. When the material enters the crushing chamber 51, it will accumulate between the first crushing roller 52 and the second crushing roller 53. With the cooperation of the two sets of crushing teeth, the large volume of raw material is crushed into small volume raw material, which can reduce the impact and collision of the raw material on the smelting furnace or various mechanisms, and also facilitate the uniform feeding of the raw material in the future.

[0121] Furthermore, referring to Figure 4 In some embodiments, the feeding mechanism 4 includes a transfer bin 41, a feeding conveyor belt 42, and a swing mechanism 43.

[0122] The rotary weighing mechanism 3 is used to pour the raw materials into the transfer bin 41. One end of the feeding conveyor belt 42 is connected to the transfer bin 41, and the other end extends and approaches the smelting furnace. The swing mechanism 43 is set at the other end of the feeding conveyor belt 42 and is used to spread the raw materials evenly in the smelting furnace.

[0123] Specifically, the structure of the transfer bin 41 is similar to that of the storage bin 1. The transfer bin 41 also includes a hollow interior and is open at the top. A discharge hole is provided at the bottom of the transfer bin 41. The transfer bin 41 is installed on the feeding conveyor belt 42 and is arranged adjacent to the rotating hopper 33. When the rotating hopper 33 rotates in the horizontal direction, it can pour the raw materials into the top opening of the transfer bin 41.

[0124] Based on this, the feeding conveyor belt 42 adopts a belt conveyor. The specific structure of the belt conveyor will not be described in detail here. In some embodiments, the feeding conveyor belt 42 can be installed on the ground. The feeding conveyor belt 42 is set horizontally, with one end extending to the bottom of the discharge port and the other end extending to the top of the smelting furnace. When the raw material enters the transfer bin 41, the raw material falls onto the feeding conveyor belt 42 through the discharge hole.

[0125] Meanwhile, the oscillating mechanism 43 is installed on the frame of the feeding conveyor belt 42. The oscillating mechanism 43 is provided with a discharge channel and a discharge port is formed at the bottom of the discharge channel. The feeding conveyor belt 42 transmits the material to the oscillating mechanism 43, so that the material can enter the melting furnace through the oscillating mechanism 43. In addition, the oscillating mechanism 43 has the action of oscillating along a circular trajectory, which can change the direction of the discharge port, thereby making the material evenly applied to the melting furnace.

[0126] Based on the above configuration, the transfer bin 41 has the function of transferring raw materials, which can then uniformly discharge the raw materials onto the feeding conveyor belt 42. At this time, under the action of the feeding conveyor belt 42, the raw materials can be transferred to the swing mechanism 43, and then the swing mechanism 43 will evenly spread the raw materials in the melting furnace. This can reduce the problem of poor melting effect caused by uneven distribution of raw materials.

[0127] Furthermore, referring to Figure 5 In some embodiments, the oscillating mechanism 43 includes a discharge funnel 431, a gear ring 432, a drive motor 433, and a gear 434.

[0128] The discharge hopper 431 is rotatably mounted on the feeding conveyor belt 42, which is used to feed raw materials into the discharge hopper 431. It has an inclined discharge port. The gear ring 432 is fixedly mounted on the discharge hopper 431. The drive motor 433 is fixedly mounted on the feeding conveyor belt 42. The gear 434 is fixedly mounted on the drive motor 433 and meshes with the gear ring 432 to drive the gear ring 432 to rotate the discharge hopper 431 so that the discharge port rotates eccentrically.

[0129] Specifically, the discharge port and discharge channel are set on the discharge funnel 431. The discharge funnel 431 is located below the other end of the feeding conveyor belt 42 and is used to receive raw materials. The bottom of the discharge funnel 431 has a profile that is inclined to one side, so that the discharge port is inclined relative to the vertical direction. In addition, the outer periphery of the discharge funnel 431 is provided with a circular profile surface. A bearing seat is provided at the frame of the feeding conveyor belt 42. The circular profile surface of the discharge funnel 431 is rotatably mounted on the bearing seat. At this time, the discharge funnel 431 can rotate along a vertical axis O. At the same time, the discharge port rotates eccentrically around the vertical axis O.

[0130] Based on this, the gear ring 432 is fixedly installed on the circular contour surface of the discharge hopper 431, the drive motor 433 is fixedly installed on the feeding conveyor belt 42, and the gear 434 is fixedly installed on the output shaft of the drive motor 433 and meshes with the gear ring 432.

[0131] Based on the above settings, by starting the drive motor 433, the drive motor 433 drives the gear 434 to rotate, the gear 434 pushes the gear ring 432 to rotate, the gear ring 432 drives the discharge funnel 431 to rotate, thereby causing the discharge port to rotate eccentrically. During the eccentric rotation of the discharge port, the raw material falls into the smelting furnace along a circular trajectory, thereby achieving the effect of uniformly spreading the raw material. The uniform spreading of the raw material in the smelting furnace is conducive to accelerating the melting speed and preventing component segregation, thereby improving the compositional consistency of the molten iron.

[0132] Furthermore, looking back Figure 1 and combined Figure 4 The smelting furnace can be set up in multiple groups. In order to facilitate the feeding of raw materials into multiple smelting furnaces, in some embodiments, a track mechanism 6 is also included. The track mechanism 6 includes a ground rail 61 and a track flatbed 62.

[0133] The ground rail 61 is set on the ground, the rail flatbed 62 is movably set on the ground rail 61, and the feeding mechanism 4 is set on the rail flatbed 62. The rail flatbed 62 is used to drive the feeding mechanism 4 to adjust its displacement and send the raw materials into different smelting furnaces.

[0134] Specifically, the ground rail 61 is laid on the ground and extends sequentially along the arrangement direction of multiple smelting furnaces. At this time, the smelting furnaces are concentrated on one side of the ground rail 61, while the storage bin 1, the conveying mechanism 2, and the rotary weighing mechanism 3 are distributed on the other side of the ground rail 61.

[0135] Meanwhile, the rail flatcar 62 is installed on the rail, and the ground rail 61 guides the movement of the rail flatcar 62. The rotating weighing mechanism 3 is fixedly installed on the rail flatcar 62, so the rail flatcar 62 can drive the rotating weighing mechanism 3 to move.

[0136] Based on the above settings, during this process, the feeding mechanism 4 can approach the rotary weighing mechanism 3 to receive the weighed raw materials. Then, under the action of the rail flatbed car 62, it approaches any smelting furnace and selectively puts the raw materials into the corresponding smelting furnace, realizing the function of feeding raw materials into multiple smelting furnaces respectively, and achieving the effect of multi-station feeding.

[0137] It should be explained that, in order to enable the rail flatcar 62 to move precisely to each smelting furnace, a displacement sensor can be installed on the rail flatcar 62, and the displacement sensor and the rail flatcar 62 are respectively connected to the PLC controller. At this time, the rotary weighing mechanism 3 and the ground rail coordinates of each smelting furnace can be preset in the PLC controller. During the movement of the rail flatcar 62, the displacement sensor feeds back the displacement coordinate value to the PLC controller. The PLC controller starts the rail flatcar 62 based on the required movement coordinate point until the displacement coordinate value reaches the corresponding ground rail coordinate, at which point the PLC controller controls the rail flatcar 62 to stop, thereby realizing the precise displacement control of the rail flatcar 62.

[0138] Based on the above settings, on the one hand, the feeding mechanism 4 can move to the rotary weighing mechanism 3 to fill the raw materials, and on the other hand, it can also drive the feeding mechanism 4 to approach each smelting furnace to realize the feeding action. It is understood that the displacement control scheme of the rail flatbed car 62 is not the focus of this application. In practical applications, a vision control scheme can also be adopted, so it will not be elaborated on further.

[0139] Furthermore, to improve the melting quality of molten iron, a spheroidizing agent is usually added to the furnace before the raw materials are fed in. As an auxiliary material, the spheroidizing agent can promote the transformation of graphite from flakes to spheroids, thereby significantly improving the mechanical properties of cast iron. Based on this, referring to... Figure 1 as well as Figure 6 The solution also includes an auxiliary material feeding mechanism 7, which includes an installation frame 71, a storage bin 72, and a second weighing component 73.

[0140] The mounting frame 71 is set on the ground, the storage bin 72 is set on the mounting frame 71 and located above the feeding mechanism 4, the bottom of the storage bin 72 is provided with a discharge port, and an opening and closing valve 74 is installed at the discharge port. The second weighing component 73 is connected to the mounting frame 71 and the storage bin 72 respectively, and is used to obtain a second weight value. The opening and closing valve 74 controls the opening and closing of the discharge port with reference to the second weight value.

[0141] Specifically, the mounting frame 71 is fixedly installed on the ground, and an extension frame is provided on one side of the mounting frame 71. The second weighing component 73 is set on the extension platform, and the storage bin 72 is installed on the extension platform and stacked on the second weighing component 73. The discharge port is located above the ground rail 61. When the rail flatbed 62 drives the rotating weighing mechanism 3 to move, the transfer storage bin 41 can pass under the discharge port.

[0142] Furthermore, in some embodiments, the second weighing component 73 employs a pressure sensor component that can detect the overall weight of the storage chamber 72. In this case, by filling the storage chamber 72 with spheroidizing agent and operating the opening and closing valve 74 to open and close the discharge port, the discharge of the spheroidizing agent can be controlled. When the overall weight of the storage chamber 72 changes, the difference forms a second weight value.

[0143] It should be explained that the second weighing component 73 is connected to the PLC controller, and the PLC controller is connected to the on / off valve 74. The PLC controller controls the opening and closing of the on / off valve 74 based on the second weight value. The auxiliary material feeding logic control is as follows:

[0144] The dosing time can be set in the PLC controller. The opening time of the valve 74 can be preset, such as 1 minute, 2 minutes or 3 minutes. The longer the opening time, the more spheroidizing agent is added. The specific time can be adjusted according to the actual amount added. There is no specific limit here.

[0145] Adjust the position of the rail flatbed 62, set the coordinates of the ground rail where the auxiliary material feeding mechanism 7 is located, and the PLC controller sends a displacement command to the rail flatbed 62 to control the rail flatbed 62 to move to the side of the auxiliary material feeding mechanism 7.

[0146] Start the on / off valve 74 to release the spheroidizing agent into the feeding mechanism 4, and close the on / off valve 74 after the release time is completed.

[0147] The PLC controller sends a displacement command to the rail flatcar 62 again, controlling the rail flatcar 62 to move to the side of the smelting furnace. After the feeding mechanism 4 is in place, the PLC controller sends a feeding command to the feeding mechanism 4, so that the feeding mechanism 4 can evenly feed the spheroidizing agent into the smelting furnace.

[0148] The PLC controller readjusts the position of the railcar 62 and sends a displacement command to control the railcar 62 to move next to the rotary weighing mechanism 3. After the feeding mechanism 4 is in place, it sends a tilting command to the rotary weighing mechanism 3 to transfer the material into the feeding mechanism 4.

[0149] The PLC controller sends a displacement command to the railcar 62 again, controlling the railcar 62 to move to the side of the smelting furnace. After the feeding mechanism 4 is in place, the PLC controller sends a feeding command to the feeding mechanism 4, so that the feeding mechanism 4 can evenly feed the raw materials into the smelting furnace.

[0150] Based on the above setup, with the combined action of the feeding mechanism 4, the auxiliary material feeding mechanism 7, and the track mechanism 6, the spheroidizing agent can be fed into the smelting furnace, realizing the function of automatic spheroidizing agent feeding. At the same time, during this process, the swing mechanism 43 can evenly spread the spheroidizing agent, thereby further avoiding the problem of incomplete graphite spheroidization affecting the mechanical properties of the casting due to uneven spheroidizing agent feeding. Furthermore, by further cooperating with the rotary weighing mechanism 3, the effects of automatic auxiliary material feeding and automatic raw material feeding are achieved, and the feeding accuracy and the degree of automation of the operation are further optimized and improved.

[0151] In this embodiment, the present invention further provides a smelting system, which includes the smelting furnace feeding device described above, and also includes a furnace body that cooperates with the smelting furnace feeding device.

[0152] Based on the above settings, a smelting system scheme with high feeding efficiency, low safety risks, and precise control of the feeding process was finally obtained.

[0153] Therefore, the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A charging device for a smelting furnace, characterized in that, include: Storage silo (1), used for storing raw materials; The conveying mechanism (2) is connected to the storage bin (1) and is used to deliver raw materials from inside the storage bin (1) to outside the storage bin (1); A rotary weighing mechanism (3) is provided, wherein the conveying mechanism (2) is used to transfer raw materials into the rotary weighing mechanism (3), and the rotary weighing mechanism (3) is used to temporarily store the raw materials and weigh them. The feeding mechanism (4) cooperates with the rotary weighing mechanism (3). When the weight of the raw material on the rotary weighing mechanism (3) exceeds the threshold, the rotary weighing mechanism (3) pours the raw material onto the feeding mechanism (4). The feeding mechanism (4) is used to feed the raw material into the smelting furnace.

2. The smelting furnace feeding device according to claim 1, characterized in that, The rotary weighing mechanism (3) includes: The first weighing component (31) is set on the ground and is used to obtain the first weight value; A bracket (32) is mounted on the first weighing component (31); A rotating hopper (33) is rotatably mounted on the support (32). The rotating hopper (33) is provided with several receiving parts, which are used to store raw materials. A power assembly (34) is disposed on the bracket (32) and connected to the rotating hopper (33). The power assembly (34) is used to drive the rotating hopper (33) to rotate so that the receiving part is vertically upward to carry the raw material from the conveying mechanism (2). Alternatively, when the first weight value is greater than the threshold, the power assembly (34) is used to flip the receiving part to the horizontal side so that the raw material is poured to the feeding mechanism (4).

3. The smelting furnace feeding device according to claim 2, characterized in that, The rotary weighing mechanism (3) also includes: The guide sleeve (35) is fixedly installed on the ground and is installed vertically; And a guide rod (36), which is fixedly mounted on the bracket (32) and slidably mounted on the guide sleeve (35).

4. The smelting furnace feeding device according to claim 2, characterized in that, The first weighing component (31) includes: The base (311) is set on the ground; The weighing platform (312) is movably disposed within the base (311), and the support (32) is disposed on the weighing platform (312); A first weight sensor (313) is disposed on the base (311) and connected to the weighing platform (312) for obtaining the added weight of the raw materials.

5. The smelting furnace feeding device according to claim 1, characterized in that, The feeding mechanism (4) includes: Transfer bin (41), the rotary weighing mechanism (3) is used to pour raw materials into the transfer bin (41); The feeding conveyor belt (42) is connected at one end to the transfer bin (41) and extends at the other end close to the smelting furnace; And a swing mechanism (43) is provided at the other end of the feeding conveyor belt (42) for spreading the raw materials evenly in the smelting furnace.

6. The smelting furnace feeding device according to claim 5, characterized in that, The swing mechanism (43) includes: The discharge hopper (431) is rotatably mounted on the feeding conveyor belt (42), which is used to feed raw materials into the discharge hopper (431) and has an inclined discharge port. A toothed ring (432) is fixedly installed in the discharge funnel (431); A drive motor (433) is fixedly mounted on the feeding conveyor belt (42); And a gear (434), fixedly mounted on the drive motor (433) and meshing with the gear ring (432), for driving the gear ring (432) to rotate the discharge funnel (431) so that the discharge port rotates eccentrically.

7. The smelting furnace feeding device according to claim 1, 5, or 6, characterized in that, It also includes a track mechanism (6), which comprises: Ground track (61), installed on the ground; And a rail flatbed cart (62), which is movably mounted on the ground rail (61), and the feeding mechanism (4) is mounted on the rail flatbed cart (62). The rail flatbed cart (62) is used to drive the feeding mechanism (4) to adjust its displacement and send the raw materials into different smelting furnaces.

8. The smelting furnace feeding device according to claim 1, 5 or 6, characterized in that, It also includes an auxiliary material feeding mechanism (7), which includes: Mounting bracket (71), installed on the ground; Storage bin (1) is provided on the mounting frame (71) and located above the feeding mechanism (4). The bottom of the storage bin (1) is provided with a discharge port, and an opening and closing valve (74) is installed at the discharge port. The second weighing component (73) is connected to the mounting frame (71) and the storage bin (1) respectively, for obtaining a second weight value, and the opening and closing valve (74) controls the opening and closing of the discharge port with reference to the second weight value.

9. The smelting furnace feeding device according to claim 1, characterized in that, It also includes a crushing mechanism (5), which comprises: Crushing chamber (51) is located on the ground; The first crushing roller (52) is rotatably mounted in the crushing chamber (51); The second crushing roller (53) is rotatably disposed in the crushing chamber (51) and parallel to the first crushing roller (52). The first crushing roller (52) and the second crushing roller (53) are connected in a transmission manner. And a drive assembly (54) is disposed in the crushing chamber (51) and connected to the first crushing roller (52) for driving the first crushing roller (52) and the second crushing roller (53) to rotate synchronously.

10. A smelting system, characterized in that, The furnace includes a furnace feeding device as described in any one of claims 1-9, and also includes a furnace body that cooperates with the furnace feeding device.

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