A drying device for flux

Abstract

The utility model relates to a kind of drying device for flux, including box, the box is provided with feed inlet, discharge port and moisture discharge port;Lifting mechanism, it is obliquely arranged in the box interior, for the flux accumulated in the bottom of box is lifted to high place and is thrown;Multi-layer flow guide plate, from top to bottom staggered is fixed on the two opposite side walls in the box interior, for the flux under the throwing of the lifting mechanism is received and guided to fall layer by layer, to form dynamic dispersed flux curtain;Drying system, including heating element and air supply duct.The utility model is continuously lifted and thrown by the obliquely arranged lifting mechanism of bottom flux, in combination with the multi-layer flow guide plate staggered from top to bottom arrangement, so that flux forms uniform dispersed dynamic curtain in falling process, completely breaks traditional static accumulation mode, fundamentally solves the problem of uneven heating, humidity is difficult to volatilize.

Description

Technical Field

[0001] This utility model relates to the field of flux drying technology, and in particular to a flux drying device. Background Technology

[0002] Submerged arc welding (SAW) is an important and efficient electric arc welding method. Its welding process is stable, produces excellent quality, and is free of arc radiation, making it widely used in the manufacture of critical equipment such as pressure vessels, pipelines, ships, and steel structures. Flux, as a key material in SAW, plays a crucial role in isolating the air, stabilizing the arc, participating in metallurgical reactions, and forming slag to protect the weld. The physicochemical state of the flux, especially its dryness, directly determines the stability of the welding process, the mechanical properties of the weld metal, and the probability of defects.

[0003] Currently, the industry commonly uses traditional box-type resistance furnaces or hot air circulating ovens for drying flux. During operation, the flux to be dried is typically piled directly into trays or containers within the oven for static heating and drying. This traditional method suffers from significant problems of low efficiency and poor uniformity: due to the large thickness of the flux pile, the heat source usually comes from the bottom or sides, making it difficult to quickly and evenly transfer heat to the center of the material. A large amount of heat energy is wasted on overheating the outer flux, while the inner flux heats up slowly, significantly extending the overall drying cycle. Furthermore, because the flux is statically piled, a closed environment is formed inside. The flux at the bottom and center is covered by the upper layer of material, making it difficult for internal moisture to dissipate effectively after heating, easily creating a "steamer" effect. This leads to localized humidity saturation, often resulting in the outer layer of flux being over-dried or even sintered, while the inner layer remains damp, resulting in inconsistent drying standards.

[0004] The above problems severely restrict the preparation efficiency of welding production and, to some extent, create hidden dangers for welding quality. The shortcomings of existing drying technologies are particularly prominent in batch welding operations or when welding materials with strict requirements on flux moisture content. Utility Model Content

[0005] To address the problems existing in the background technology, this utility model provides a novel flux drying device to achieve rapid, uniform, and efficient drying of flux, thereby improving welding production efficiency and ensuring weld quality.

[0006] The technical solution is as follows: A flux drying device includes a box body with an inlet, an outlet, and a dehumidification outlet; a lifting mechanism, inclinedly disposed inside the box body, for lifting flux accumulated at the bottom of the box body to a high position and scattering it; multi-layer guide plates, staggered from top to bottom, fixed on two opposite side walls inside the box body, for receiving the flux scattered by the lifting mechanism and guiding it to fall layer by layer to form a dynamically dispersed flux curtain; and a drying system including a heating element and an air supply duct, the air supply duct being disposed on the side wall of the box body, with multiple air outlets on the side facing the flux curtain.

[0007] Furthermore, the guide plate is hinged to the side wall of the housing via a rotating shaft mechanism; the rotating shaft mechanism includes a sleeve disposed on the outside of the housing and a horizontal shaft passing through the sleeve and connected to the guide plate; an arc-shaped limiting groove is formed on the surface of the sleeve, a limiting block is fixed at one end to the horizontal shaft, and the other end extends into the arc-shaped limiting groove; an elastic element has its two ends abutting against the ends of the limiting block and the arc-shaped limiting groove, respectively.

[0008] Furthermore, the rotating shaft mechanism is mounted on the side wall of the housing via an angle adjustment assembly; the angle adjustment assembly includes an adjustment ring rotatably fitted outside the sleeve, the side wall of the adjustment ring has a through hole, an adjustment screw passes through the through hole and engages with a threaded hole on the outer wall of the sleeve; the outer surface of the adjustment ring is provided with an angle scale, and the sleeve is provided with a pointer pointing to the angle scale.

[0009] Furthermore, the upper surfaces of two adjacent layers of the guide plates are provided with guide strips with opposite inclination directions.

[0010] Furthermore, multiple vertically arranged heat flow channels are opened inside the side wall of the housing; the heat flow channels are connected to the air supply duct.

[0011] Furthermore, the top of the enclosure has an arched structure, and the vent is located at the highest point of the arched structure and connected to a dehumidifier.

[0012] The beneficial effects of this utility model are: 1. This utility model uses an inclined lifting mechanism to continuously lift and scatter the bottom flux. Combined with multi-layered guide plates arranged in a staggered manner from top to bottom, the flux forms a uniformly dispersed dynamic curtain during its descent, completely breaking the traditional static accumulation mode and fundamentally solving the problems of uneven heating and difficulty in moisture evaporation. At the same time, the drying system, consisting of heating elements and air supply pipes with multiple air outlets, can directly and evenly blow hot air onto the entire curtain, allowing the flux particles to fully and efficiently exchange heat with the hot air. This significantly shortens the drying time, greatly improves the uniformity and efficiency of drying, and effectively reduces energy consumption.

[0013] 2. Through the cooperation of the rotating shaft mechanism, the arc-shaped limiting groove, the limiting block and the elastic element, the guide plate can generate adaptive buffering and shaking when receiving flux impact. This not only effectively avoids flux splashing, but also breaks up flux clumps and makes them more evenly distributed, thereby further improving drying quality and efficiency.

[0014] 3. The angle adjustment component of this utility model allows operators to conveniently and accurately adjust and lock the tilt angle of the guide plate, thereby flexibly adapting to the flux drying process requirements of different particle sizes and moisture contents, greatly enhancing the versatility and process adaptability of the equipment.

[0015] 4. By setting guide strips with opposite inclination directions on adjacent guide plates, this utility model can guide and diffuse the falling flux in both directions, greatly enhancing the dispersion effect of the material and forming a more uniform material curtain, thereby effectively eliminating the drying dead corner.

[0016] 5. This utility model provides auxiliary heating to the side wall of the box by setting a hot flow channel connected to the air supply duct inside the box, which effectively increases the wall temperature and prevents condensation and backflow of wet flux when it comes into contact with the cold wall, thus ensuring the stability of the dry environment.

[0017] 6. The arched top structure of this utility model can naturally guide all the volatile hot and humid air to the exhaust port at the highest point, and in conjunction with the dehumidifier, actively and efficiently discharge the moisture, which greatly accelerates the discharge speed of moisture in the box and prevents saturated moisture from circulating in the box, thereby significantly shortening the total drying time. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0019] Figure 2 This is a schematic diagram of the internal structure of the box of this utility model.

[0020] Figure 3 This is a schematic diagram of the structure of the guide plate of this utility model.

[0021] Figure 4 This is a schematic diagram of the rotating shaft mechanism of this utility model.

[0022] Reference numerals: 1_Box body, 11_Inlet, 12_Outlet, 13_Exhaust outlet, 14_Hot flow channel, 15_Stacking area, 2_Lifting mechanism, 3_Guide plate, 31_Guide strip, 4_Drying system, 41_Heating element, 42_Air supply duct, 5_Rotating shaft mechanism, 51_Sleeve, 52_Horizontal shaft, 53_Arc-shaped limiting groove, 54_Limiting block, 55_Elastic element, 56_Threaded hole, 57_Pointer, 6_Angle adjustment assembly, 61_Adjusting ring, 62_Adjusting screw, 63_Angle scale, 64_Through hole, 7_Dehumidifier, 8_Guide base. Detailed Implementation

[0023] The technical solution of this utility model will now be clearly and completely described with reference to the embodiments shown in the accompanying drawings. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of protection of this utility model.

[0024] See Figure 1 and Figure 2 This utility model provides a flux drying device, which includes a housing 1, a lifting mechanism 2, a multi-layer guide plate 3, and a drying system 4. The housing 1 is the main structure of the device, and its top is preferably designed as an arched structure, which can naturally guide hot and humid steam to converge towards the top center. The housing 1 has an inlet 11 for feeding the flux to be dried, an outlet 12 for discharging the dried flux, and a vent 13 located at the highest point of the arched top for discharging moisture. The lifting mechanism 2 is installed at an angle inside the box 1, with its lower end located in the stacking area 15 at the bottom of the box. It is used to continuously lift the accumulated flux to a high place and scatter it. The multi-layer guide plates 3 are arranged at an angle from top to bottom on two opposite side walls inside the box 1. They are used to receive the scattered flux and guide it to fall layer by layer and dispersedly, thereby forming a uniformly dispersed dynamic flux curtain in the space inside the box. The drying system 4 includes a heating element 41 that provides a heat source and an air supply pipe 42 for conveying hot air. The air supply pipe 42 is arranged on the side wall of the box 1, and has multiple air outlets on the side facing the flux curtain, which are used to blow hot air evenly and directly onto the falling flux particles.

[0025] After wet flux is fed into the inlet 11, it accumulates in the stacking area 15 formed by the bottom of the box 1. The lifting mechanism 2 lifts it from the bottom to the top and throws it. The flux then falls onto the staggered multi-layer guide plates 3, and after multiple bounces and tumbles, it disperses and falls, forming a dynamic material curtain. During this process, the hot air blown out by the drying system 4 conducts a comprehensive and efficient heat exchange with the fully dispersed flux particles, and the moisture is rapidly evaporated. The evaporated moisture rises to the top of the arched box under the action of thermal buoyancy and is finally discharged from the exhaust port 13 at the highest point, thus completing an efficient and uniform drying process.

[0026] In a specific embodiment, such as Figure 1 As shown, the box 1 can be composed of a rectangular box mainly used for drying operations and a triangular box for accommodating the lifting mechanism 2. The inlet 11 and outlet 12 are both located on the side of the triangular box, and the bottom naturally forms a stacking area 15. This layout allows the feeding and final discharge to be in the same area, facilitating centralized operation and management. The dehumidification port 13 is connected to a dehumidifier 7, which can actively and powerfully extract saturated moisture from the box, greatly accelerating the dehumidification speed, preventing secondary wetting caused by moisture circulation in the box, and significantly improving drying efficiency.

[0027] See Figure 2 , Figure 3 and Figure 4 In a preferred embodiment, the guide plate 3 is not completely rigidly fixed, but is hinged to the side wall of the housing 1 via a pivot mechanism 5. The pivot mechanism 5 includes a sleeve 51 disposed on the outside of the housing 1 and a horizontal shaft 52 passing through the sleeve 51 and fixedly connected to the guide plate 3. An arc-shaped limiting groove 53 is formed on the surface of the sleeve 51. A limiting block 54 and an elastic element 55 are disposed within the arc-shaped limiting groove 53. One end of the limiting block 54 is fixedly mounted on the horizontal shaft 52, and the other end extends into the arc-shaped limiting groove 53. The elastic element 55 is disposed within the arc-shaped limiting groove 53, with its two ends abutting against the ends of the limiting block 54 and the arc-shaped limiting groove 53, respectively.

[0028] In one specific embodiment, the elastic element 55 is preferably a bending spring with a curvature consistent with the arc-shaped limiting groove 53. The purpose of setting the spring is that when flux particles fall onto the guide plate 3, their impact force will press down on the guide plate, forcing the horizontal shaft 52 to drive the limiting block 54 to compress the elastic element 55 and cause the guide plate 3 to deflect downward and sway slightly. The resulting swaying helps to break up any flux that may be clumped, making its distribution more uniform, and also increases the tilt angle of the guide plate 3, facilitating the fall of flux particles, thereby further improving the drying quality. For fluxes with different specific gravities or particle sizes, the elastic element 55 with different stiffness coefficients can be replaced to achieve the best swaying effect.

[0029] Furthermore, to enhance the equipment's process adaptability, the rotating shaft mechanism 5 is also equipped with an angle adjustment assembly 6. This assembly includes an adjustment ring 61 rotatably fitted around the sleeve 51, which is fixed to the side wall of the housing by fasteners. A through hole 64, an arc-shaped elongated hole, is formed in the side wall of the adjustment ring 61. An adjustment screw 62 passes through this through hole 64 and is screwed into a threaded hole 56 machined on the outer wall of the sleeve 51. Loosening the adjustment screw 62 allows the sleeve 51, along with the internal horizontal shaft 52 and the guide plate 3, to rotate relative to the fixed adjustment ring 61, thereby changing the initial tilt angle of the guide plate 3. An angle scale 63 is provided on the outer surface of the adjustment ring 61, and a pointer 57 is provided on the sleeve 51, allowing operators to conveniently and accurately read and set the tilt angle of the guide plate 3, thus flexibly adapting to the drying process requirements of different types of fluxes and greatly enhancing the equipment's versatility.

[0030] In addition, manually rotating the horizontal axis 52 can also cause the guide plate 3 to flip. This function makes it easy to clean the guide plate during maintenance and prevent flux residue from sticking.

[0031] In another optimized embodiment, see [reference] Figure 2 Multiple vertically arranged hot air channels 14 are provided on the two inner side walls of the chamber 1. These hot air channels 14 are connected to the air supply duct 42. Their function is to allow hot air to flow up the chamber wall to assist in heating the side walls of the chamber, effectively increasing the wall temperature, and ensuring that the temperature of the upper and lower areas of the guide plate 3 is consistent, thus ensuring the continuous stability of the drying environment and avoiding localized dampness.

[0032] In addition, a guide base 8 is provided at the bottom of the box 1, with its upper surface being inclined. The purpose of this arrangement is to guide all the final falling flux to gather and flow to the stacking area 15, ensuring that the falling flux can be repeatedly lifted by the lifting mechanism 2 to participate in the drying cycle.

[0033] In another preferred embodiment, see Figure 2 and Figure 3 On the upper surface of the two adjacent layers of guide plates 3, guide strips 31 with opposite inclination directions are provided. The function of the guide strips 31 is that when the flux slides down the guide plate, the guide strips in different directions will have a bidirectional guiding and diffusion effect on the flux, which greatly enhances the lateral dispersion effect of the material and helps to form a wider and more uniform material curtain, thereby effectively eliminating the drying dead corners that hot air may not be able to cover, and ensuring the ultimate uniformity of drying.

[0034] The embodiments described above are merely preferred embodiments of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications, improvements, and substitutions without departing from the inventive concept, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A flux drying apparatus, characterized in that, include: The box (1) is provided with a feed inlet (11), a discharge outlet (12) and a moisture outlet (13). The lifting mechanism (2) is inclinedly installed inside the box (1) to lift the flux accumulated at the bottom of the box (1) to a high place and throw it; Multi-layer guide plates (3) are fixed to the two opposite side walls inside the box (1) from top to bottom in an alternating manner. They are used to receive the flux thrown down by the lifting mechanism (2) and guide it to fall layer by layer to form a dynamically dispersed flux curtain. The drying system (4) includes a heating element (41) and an air supply duct (42). The air supply duct (42) is located on the side wall of the box (1) and has multiple air outlets on the side facing the flux curtain.

2. The flux drying apparatus according to claim 1, characterized in that, The guide plate (3) is hinged to the side wall of the box (1) via a rotating shaft mechanism (5); The rotating shaft mechanism (5) includes a sleeve (51) disposed on the outside of the housing (1) and a horizontal shaft (52) passing through the sleeve (51) and connected to the guide plate (3). An arc-shaped limiting groove (53) is provided on the surface of the sleeve (51). One end of a limiting block (54) is fixed on the horizontal shaft (52), and the other end extends into the arc-shaped limiting groove (53). An elastic element (55) has its two ends abutting against the ends of the limiting block (54) and the arc-shaped limiting groove (53), respectively.

3. The flux drying apparatus according to claim 2, characterized in that, The rotating shaft mechanism (5) is mounted on the side wall of the housing (1) via an angle adjustment component (6); the angle adjustment component (6) includes an adjustment ring (61) rotatably fitted outside the sleeve (51), the side wall of the adjustment ring (61) has a through hole (64), an adjustment screw (62) passes through the through hole (64) and engages with a threaded hole (56) on the outer wall of the sleeve (51); the outer surface of the adjustment ring (61) is provided with an angle scale (63), and the sleeve (51) is provided with a pointer (57) pointing to the angle scale (63).

4. The flux drying apparatus according to claim 3, characterized in that, The upper surfaces of the two adjacent layers of the guide plates (3) are provided with guide strips (31) with opposite inclination directions.

5. The flux drying apparatus according to any one of claims 1-3, characterized in that, The side wall of the housing (1) has multiple vertically arranged heat flow channels (14); the heat flow channels (14) are connected to the air supply duct (42).

6. The flux drying apparatus according to claim 5, characterized in that, The top of the box (1) is arched, and the exhaust port (13) is located at the highest point of the arched structure and connected to a dehumidifier (7).

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