Bamboo salt medium-frequency smelting furnace
By designing an automated bamboo salt medium-frequency melting furnace, and utilizing components such as a PLC controller and an electric telescopic rod, the safe and efficient melting of bamboo salt is achieved. This solves the pollution and unsafe operation problems in the existing bamboo salt melting process, and improves production efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU TAISHANG BAMBOO RES IND CO LTD
- Filing Date
- 2025-06-10
- Publication Date
- 2026-05-05
AI Technical Summary
Existing medium-frequency melting furnaces have problems such as pollution, unsafe operation, and inconvenient material feeding and discharging during bamboo salt melting, making it difficult to achieve safe and efficient bamboo salt production.
A medium-frequency induction furnace for bamboo salt was designed. It uses a PLC controller in conjunction with an electric telescopic rod, a motor, and sensors to achieve automated lifting, transfer, and unloading of bamboo salt during the smelting process. Combined with the locking structure of the sealing plate and the storage tank, it ensures the airtightness and pollution prevention of the smelting process. The support components provide stable support through the linkage of the double telescopic rods.
The automated operation of bamboo salt smelting has been achieved, reducing the risks of manual intervention and high-temperature operation, ensuring the airtightness and pollution prevention of the smelting process, and improving production efficiency and safety.
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Figure CN224202181U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of smelting furnace technology, specifically a bamboo salt medium-frequency smelting furnace. Background Technology
[0002] Traditional bamboo salt is made by repeatedly roasting raw salt (mainly sun-dried sea salt) in fresh bamboo tubes at high temperatures of 800-1300℃. The famous "purple bamboo salt" (such as Insan bamboo salt from Korea) is obtained through nine cycles of filling and roasting, hence its name "nine-roasted bamboo salt." The traditional manufacturing process of bamboo salt is time-consuming, labor-intensive, has a long production cycle, consumes a lot of resources, and is difficult to standardize. Existing literature, "Research on the Improvement of Traditional Bamboo Salt Process and the Liver-Protecting Efficacy of New Products" (Master's thesis, Zhejiang University, author: Chen Liang), proposes introducing medium-frequency melting technology into bamboo salt production. This involves replacing the traditional earthen kiln with a medium-frequency melting furnace, using raw salt (sun-dried sea salt) and bamboo leaf flavonoids (BLF) as raw materials. By controlling process parameters—roasting temperature, roasting time, heating rate, and raw material ratio—a new type of bamboo salt was produced. Compared with traditional bamboo salt, the new bamboo salt obtained by medium-frequency melting technology has many advantages in terms of physical and chemical properties, biological efficacy, degree of mechanization in manufacturing, direct production cost, and product standardization. It improves and enhances the traditional bamboo salt process, which can significantly improve the mechanization and automation level of bamboo salt manufacturing, greatly reduce labor intensity, increase production efficiency, and thus reduce manufacturing costs. It helps to realize the standardization and large-scale production of bamboo salt and has broad prospects for industrial application.
[0003] However, existing medium-frequency melting furnaces are mainly used for metal melting. When applied to bamboo salt melting and processing, they have drawbacks such as the top-out or tilting furnace body easily contaminating the bamboo salt, high melting temperature, unsafe manual operation, and inconvenient material feeding and discharging. Therefore, we propose a medium-frequency melting furnace for bamboo salt. Utility Model Content
[0004] The technical problem to be solved by this utility model is to overcome the existing defects and provide a medium-frequency melting furnace for bamboo salt, which can facilitate material handling and avoid contamination of bamboo salt, thus effectively solving the problems in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a bamboo salt medium-frequency melting furnace, comprising a furnace body and a storage component;
[0006] Furnace body: A limit ring is fixed at the upper end of the interior, a base plate is fixed at the lower end of the furnace body, a support component is installed at the right end of the upper side of the base plate, a feeding component and a moving component are installed at the left end of the upper side of the base plate, and a fixing component is installed at the lower side of the moving component.
[0007] Storage component: includes a storage tank, an arc-shaped support plate, a sealing plate, a slot, a fixing block, and a locking hole. The storage tank is located at the upper end of the furnace body. Two corresponding arc-shaped support plates are fixed to the upper end of the storage tank. A sealing plate is fixed to the upper side of the two arc-shaped support plates. Two corresponding slots are opened at the front and rear ends of the circumference of the sealing plate. A fixing block is fixed to the upper end of the sealing plate. Two corresponding locking holes are opened on the right side of the fixing block. The sealing plate is connected to a moving component. The bamboo salt is stored by setting up the storage component.
[0008] Furthermore, the support assembly includes a first electric telescopic rod, a connecting frame, a second electric telescopic rod, and locking posts. Two corresponding first electric telescopic rods are installed on the upper side of the base plate, and a connecting frame is fixed on the telescopic arm of the two first electric telescopic rods. Two corresponding second electric telescopic rods are installed on the right side of the connecting frame, and two corresponding locking posts are fixed on the telescopic arm of the two second electric telescopic rods. The locking posts are engaged in the interior of corresponding locking holes. The input ends of the first and second electric telescopic rods are electrically connected to the output end of an external PLC controller. By setting up the support assembly, the storage assembly is supported. At the same time, during melting, the two first electric telescopic rods can be controlled to retract, allowing the storage tank to descend into the interior of the furnace.
[0009] Furthermore, the feeding assembly includes a third electric telescopic rod, a feeding tray, a pressure sensor, and an infrared sensor. The third electric telescopic rod is installed on the left side of the upper side of the base plate. The feeding tray is fixed on the telescopic arm of the third electric telescopic rod. An installation groove is opened at the upper end of the feeding tray, and a pressure sensor is installed inside the installation groove. A connecting groove is opened on the left side of the upper end of the feeding tray, and an infrared sensor is installed inside the connecting groove. Both the pressure sensor and the infrared sensor are bidirectionally electrically connected to an external PLC controller. The input end of the third electric telescopic rod is electrically connected to the output end of the external PLC controller. By setting the feeding assembly, the moving assembly can easily feed the storage assembly after moving it to the upper end of the feeding tray.
[0010] Furthermore, the moving component includes support bars, a fixed frame, a moving block, a threaded rod, a limiting rod, and a motor. Two corresponding support bars are fixed to the left end of the upper side of the base plate. The two support bars are located at the left end of the feeding tray. A fixed frame is fixed to the upper side of the two support bars. A motor is installed on the left side of the fixed frame. A threaded hole is opened on the front side of the moving block. A threaded rod is threadedly connected inside the threaded hole. The threaded rod is rotatably connected inside the fixed frame. The output shaft of the motor is fixed to the left end of the threaded rod. A limiting hole is opened on the rear side of the moving block. A limiting rod is slidably connected inside the limiting hole. The limiting rod is fixed inside the fixed frame. The input end of the motor is electrically connected to the output end of an external PLC controller. The moving component drives the storage component to move.
[0011] Furthermore, the fixing assembly includes a mounting frame, a fourth electric telescopic rod, a movable base, and a bracket. The mounting frame is fixed to the lower side of the movable block. Two corresponding fourth electric telescopic rods are installed on the front and rear sides inside the mounting frame. A movable base is fixed to the telescopic arm of the fourth electric telescopic rod. A bracket is fixed to the lower side of the movable base. The two brackets are respectively engaged in the interior of two slots. The input end of the fourth electric telescopic rod is electrically connected to the output end of an external PLC controller. The storage component is fixed by setting the fixing assembly.
[0012] Furthermore, the upper end of the storage tank has an opening, and an arc-shaped baffle is engaged inside the opening. The arc-shaped baffle has a lifting hole on its upper left side, and two corresponding arc-shaped limiting strips are fixed on the front and rear sides of the arc-shaped baffle. Two corresponding openings are opened on the front and rear sides inside the opening, and the arc-shaped limiting strips are engaged inside the opening. The arc-shaped baffle facilitates the unloading of bamboo salt from inside the storage tank.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This bamboo salt medium-frequency melting furnace has the following advantages:
[0014] The PLC controller, in coordination with the electric telescopic rod, motor, and sensors, enables automated lifting, transfer, and unloading of bamboo salt during smelting, significantly reducing the risks of manual intervention and high-temperature operation. The locking structure between the sealing disc and the storage tank, along with the detachable arc-shaped baffle and multiple rigid locking designs, ensures the airtightness of the smelting process and effectively isolates contaminants. The support components are precisely positioned through the linkage of the double telescopic rods with locking pins and holes, supplemented by limit rings for guidance, providing stable support for the storage tank and preventing displacement and vibration. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the front structure of this utility model;
[0016] Figure 2This is a schematic diagram of the storage component structure of this utility model;
[0017] Figure 3 This is a schematic diagram of the support component structure of this utility model.
[0018] In the diagram: 1 Furnace body, 2 Limiting ring, 3 Storage component, 31 Storage tank, 32 Arc-shaped support plate, 33 Sealing plate, 34 Slot, 35 Fixing block, 36 Slot, 4 Support component, 41 First electric telescopic rod, 42 Connecting frame, 43 Second electric telescopic rod, 44 Slot, 5 Discharge component, 51 Third electric telescopic rod, 52 Discharge tray, 53 Pressure sensor, 54 Infrared sensor, 6 Moving component, 61 Support bar, 62 Fixing frame, 63 Moving block, 64 Threaded rod, 65 Limiting rod, 66 Motor, 7 Fixing component, 71 Mounting frame, 72 Fourth electric telescopic rod, 73 Moving seat, 74 Slot, 8 Arc-shaped baffle, 9 Lifting hole, 10 Arc-shaped limiting bar, 11 Base plate. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0020] Please see Figure 1-3 This embodiment provides a technical solution: a bamboo salt medium-frequency melting furnace, including a furnace body 1 and a storage component 3;
[0021] Furnace body 1: A limit ring 2 is fixed to the upper end of the interior. A base plate 11 is fixed to the lower end of the furnace body 1. A support assembly 4 is installed on the right side of the upper side of the base plate 11. A feeding assembly 5 and a moving assembly 6 are installed on the left side of the upper side of the base plate 11. A fixing assembly 7 is installed on the lower side of the moving assembly 6. The support assembly 4 includes a first electric telescopic rod 41, a connecting frame 42, a second electric telescopic rod 43, and a locking post 44. Two corresponding first electric telescopic rods 41 are installed on the upper side of the base plate 11. A connecting frame 42 is fixed on the telescopic arm of the two first electric telescopic rods 41. Two corresponding second electric telescopic rods 43 are installed on the right side of the connecting frame 42. Two corresponding locking posts 44 are fixed on the telescopic arm of the two second electric telescopic rods 43. The locking posts 44 are engaged with corresponding locking holes. Inside component 36, the input ends of the first electric telescopic rod 41 and the second electric telescopic rod 43 are both electrically connected to the output end of an external PLC controller. The unloading assembly 5 includes a third electric telescopic rod 51, an unloading tray 52, a pressure sensor 53, and an infrared sensor 54. The third electric telescopic rod 51 is installed on the left side of the upper side of the base plate 11. The unloading tray 52 is fixed on the telescopic arm of the third electric telescopic rod 51. An installation groove is opened at the upper end of the unloading tray 52, and the pressure sensor 53 is installed inside the installation groove. A connecting groove is opened on the left side of the upper end of the unloading tray 52, and the infrared sensor 54 is installed inside the connecting groove. Both the pressure sensor 53 and the infrared sensor 54 are bidirectionally electrically connected to an external PLC controller. The input end of the third electric telescopic rod 51 is electrically connected to the output end of an external PLC controller. The moving assembly 6, connected to the output of an external PLC controller, includes support bars 61, a fixed frame 62, a moving block 63, a threaded rod 64, a limit rod 65, and a motor 66. Two corresponding support bars 61 are fixed to the left side of the upper side of the base plate 11, located at the left end of the unloading tray 52. A fixed frame 62 is fixed to the upper side of the two support bars 61. The motor 66 is mounted on the left side of the fixed frame 62. A threaded hole is provided on the front side of the moving block 63, and a threaded rod 64 is threadedly connected inside the threaded hole. The threaded rod 64 is rotatably connected inside the fixed frame 62. The output shaft of the motor 66 is fixed to the left end of the threaded rod 64. A limit hole is provided on the rear side of the moving block 63, and a limit rod 65 is slidably connected inside the limit hole. The limit rod 65 is fixed... The storage component 3 is fixed inside the fixed frame 62. The input end of the motor 66 is electrically connected to the output end of the external PLC controller. The fixed component 7 includes a mounting frame 71, a fourth electric telescopic rod 72, a movable base 73, and a bracket 74. The mounting frame 71 is fixed to the lower side of the movable block 63. Two corresponding fourth electric telescopic rods 72 are installed on the front and rear sides inside the mounting frame 71. The movable base 73 is fixed to the telescopic arm of the fourth electric telescopic rod 72. The bracket 74 is fixed to the lower side of the movable base 73. The two brackets 74 are respectively engaged in the two slots 34. The input end of the fourth electric telescopic rod 72 is electrically connected to the output end of the external PLC controller. The storage component 3 is fixed by setting the fixed component 7, and the storage component 3 is moved by setting the movable component 6.By setting the feeding component 5, the moving component 6 can move the storage component 3 to the upper end of the feeding tray 52, facilitating feeding. The support component 4 supports the storage component 3. Simultaneously, during melting, the two first electric telescopic rods 41 can be controlled to retract, causing the storage tank 31 to descend into the furnace body 1.
[0022] Storage component 3 includes a storage tank 31, an arc-shaped support plate 32, a sealing plate 33, a slot 34, a fixing block 35, and a locking hole 36. The storage tank 31 is provided at the upper end of the furnace body 1. Two corresponding arc-shaped support plates 32 are fixed at the upper end of the storage tank 31. A sealing plate 33 is fixed on the upper side of the two arc-shaped support plates 32. Two corresponding slots 34 are opened at the front and rear ends of the circumference of the sealing plate 33. A fixing block 35 is fixed at the upper end of the sealing plate 33. Two corresponding locking holes 36 are opened on the right side of the fixing block 35. The sealing plate 33 is connected to the moving component 6. The bamboo salt is stored by setting up the storage component 3.
[0023] The storage tank 31 has an opening at its upper end, and an arc-shaped baffle 8 is fitted inside the opening. The arc-shaped baffle 8 has a lifting hole 9 at its upper left side. Two corresponding arc-shaped limiting strips 10 are fixed on the front and rear sides of the arc-shaped baffle 8. Two corresponding openings are opened on the front and rear sides inside the opening, and the arc-shaped limiting strips 10 are fitted inside the opening. The arc-shaped baffle 8 facilitates the unloading of bamboo salt inside the storage tank 31.
[0024] The working principle of the bamboo salt medium-frequency melting furnace provided by this utility model is as follows: First, the storage tank 31 is placed above the feeding tray 52. Then, the operator lifts the arc-shaped baffle 8 upward through the lifting hole 9, so that the arc-shaped limiting strip 10 is disengaged from the opening of the storage tank 31. The bamboo salt raw material is then loaded into the storage tank 31 through the opening. Subsequently, the arc-shaped baffle 8 is re-clamped. Then, the third electric telescopic rod 51 is activated to move the feeding tray 52 upward to the predetermined position. Then, the two fourth electric telescopic rods 72 are controlled to work, pushing the two moving seats 73 and the clamping bracket. 74 moves inward, causing the card holder 74 to engage in the slot 34 of the sealing disc 33, thus fixing the storage tank 31 to the moving assembly 6. Then, the motor 66 is started by the external PLC controller, driving the threaded rod 64 to rotate, which in turn moves the moving block 63 horizontally to the right along the limit rod 65 until the storage tank 31 is directly above the furnace body 1. Then, the second electric telescopic rod 43 is controlled to work, causing the locking pin 44 to engage in the locking hole 36 of the fixing block 35. Subsequently, the two fourth electric telescopic rods 72 are controlled to retract, causing the two card holders 74 to engage with the sealing disc 33. After separation, the first electric telescopic rod 41 is retracted, driving the connecting frame 42 and the storage tank 31 to move downwards along the limiting ring 2 until the storage tank 31 is fully inserted into the melting chamber of the furnace body 1 for melting. After melting, the first electric telescopic rod 41 extends, lifting the storage tank 31 above the furnace body 1. Then, the two card holders 74 are reconnected to the two card slots 34. After connection, the two second electric telescopic rods 43 are retracted, causing the two card posts 44 to separate from the card holes 36. After separation, the motor 66 rotates in the opposite direction, driving the moving block 63 to move to the left to unload the material. Above the tray 52; the fourth electric telescopic rod 72 retracts, releasing the clamp 74 from the slot 34, and the third electric telescopic rod 51 extends, raising the feeding tray 52 until it contacts the bottom of the storage tank 31; the operator opens the arc-shaped baffle 8 again, and the molten bamboo salt slides into the collection container through the inclined surface of the feeding tray 52, completing the discharge. After unloading, the third electric telescopic rod 51 retracts, and the feeding tray 52 resets; the moving component 6 moves the storage tank 31 back to its original position, and the operator can disassemble the storage tank 31 for cleaning, preparing for the next batch of molten material.
[0025] It is worth noting that the external PLC controller disclosed in the above embodiments is specifically a Siemens S7-200. The first electric telescopic rod 41, the second electric telescopic rod 43, the third electric telescopic rod 51, the fourth electric telescopic rod 72, the pressure sensor 53, and the infrared sensor 54 can be freely configured according to the actual application scenario. The external PLC controller controls the operation of the first electric telescopic rod 41, the second electric telescopic rod 43, the third electric telescopic rod 51, and the fourth electric telescopic rod 72 using methods commonly used in the prior art.
[0026] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A medium-frequency induction furnace for bamboo salt smelting, characterized in that: Includes furnace body (1) and storage components (3); Furnace body (1): A limiting ring (2) is fixed at the upper end of the interior. A base plate (11) is fixed at the lower end of the furnace body (1). A support component (4) is installed on the right side of the upper side of the base plate (11). A feeding component (5) and a moving component (6) are installed on the left side of the upper side of the base plate (11). A fixing component (7) is installed on the lower side of the moving component (6). Storage component (3): includes storage tank (31), arc-shaped support plate (32), sealing plate (33), slot (34), fixing block (35) and slot (36). The upper end of the furnace body (1) is provided with storage tank (31). The upper end of the storage tank (31) is fixed with two corresponding arc-shaped support plates (32). The upper side of the two arc-shaped support plates (32) is fixed with sealing plate (33). The front and rear ends of the circumferential surface of the sealing plate (33) are provided with two corresponding slots (34). The upper end of the sealing plate (33) is fixed with fixing block (35). The right side of the fixing block (35) is provided with two corresponding slots (36). The sealing plate (33) is connected to the moving component (6).
2. The bamboo salt medium-frequency smelting furnace according to claim 1, characterized in that: The support assembly (4) includes a first electric telescopic rod (41), a connecting frame (42), a second electric telescopic rod (43), and a locking post (44). Two corresponding first electric telescopic rods (41) are installed on the upper side of the base plate (11). A connecting frame (42) is fixed on the telescopic arm of the two first electric telescopic rods (41). Two corresponding second electric telescopic rods (43) are installed on the right side of the connecting frame (42). Two corresponding locking posts (44) are fixed on the telescopic arm of the two second electric telescopic rods (43). The locking posts (44) are engaged in the interior of the corresponding locking holes (36). The input ends of the first electric telescopic rods (41) and the second electric telescopic rods (43) are electrically connected to the output end of an external PLC controller.
3. The bamboo salt medium-frequency smelting furnace according to claim 1, characterized in that: The feeding assembly (5) includes a third electric telescopic rod (51), a feeding tray (52), a pressure sensor (53), and an infrared sensor (54). The third electric telescopic rod (51) is installed on the left side of the upper side of the base plate (11). The feeding tray (52) is fixed on the telescopic arm of the third electric telescopic rod (51). The upper end of the feeding tray (52) is provided with an installation groove. The pressure sensor (53) is installed inside the installation groove. The left side of the upper end of the feeding tray (52) is provided with a connecting groove. The infrared sensor (54) is installed inside the connecting groove. The pressure sensor (53) and the infrared sensor (54) are both bidirectionally electrically connected to an external PLC controller. The input end of the third electric telescopic rod (51) is electrically connected to the output end of an external PLC controller.
4. The bamboo salt medium-frequency smelting furnace according to claim 1, characterized in that: The moving component (6) includes a support bar (61), a fixed frame (62), a moving block (63), a threaded rod (64), a limiting rod (65), and a motor (66). Two corresponding support bars (61) are fixed to the left side of the upper side of the base plate (11). The two support bars (61) are located at the left end of the feeding tray (52). A fixed frame (62) is fixed to the upper side of the two support bars (61). A motor (66) is installed on the left side of the fixed frame (62). The front side of the moving block (63) is opened. The device has a threaded hole, and a threaded rod (64) is threadedly connected inside the threaded hole. The threaded rod (64) is rotatably connected inside the fixed frame (62). The output shaft of the motor (66) is fixed to the left end of the threaded rod (64). A limit hole is opened on the rear side of the moving block (63). A limit rod (65) is slidably connected inside the limit hole. The limit rod (65) is fixed inside the fixed frame (62). The input end of the motor (66) is electrically connected to the output end of an external PLC controller.
5. The bamboo salt medium-frequency smelting furnace according to claim 4, characterized in that: The fixed assembly (7) includes a mounting frame (71), a fourth electric telescopic rod (72), a movable seat (73), and a bracket (74). The mounting frame (71) is fixed to the lower side of the movable block (63). Two corresponding fourth electric telescopic rods (72) are installed on the front and rear sides inside the mounting frame (71). The movable seat (73) is fixed to the telescopic arm of the fourth electric telescopic rod (72). The bracket (74) is fixed to the lower side of the movable seat (73). The two brackets (74) are respectively engaged in the interior of two slots (34). The input end of the fourth electric telescopic rod (72) is electrically connected to the output end of an external PLC controller.
6. The bamboo salt medium-frequency smelting furnace according to claim 1, characterized in that: The storage tank (31) has an opening at the top, and an arc-shaped baffle (8) is engaged inside the opening. The arc-shaped baffle (8) has a lifting hole (9) at the upper left side. Two corresponding arc-shaped limiting strips (10) are fixed on the front and rear sides of the arc-shaped baffle (8). Two corresponding openings are opened on the front and rear sides inside the opening, and the arc-shaped limiting strips (10) are engaged inside the opening.