A dust removal device for a vacuum circulation degassing apparatus

Abstract

The utility model relates to dust removal device technical field discloses a dust removal device for vacuum circulation degassing equipment, this vacuum circulation degassing equipment includes the main exhaust interface, first gas cooler interface, second gas cooler interface and connecting structure of being located on the base station, connecting structure can move switching between main exhaust interface, first gas cooler interface and second gas cooler interface, this dust removal device includes: dust collection structure, its is located above the base station, and has a dust collection chamber, and the horizontal projection of dust collection chamber can always cover main exhaust interface, first gas cooler interface, second gas cooler interface and connecting structure, dust absorption subassembly, it includes dust absorption channel and power supply, dust absorption channel one end communicates with power supply, other end communicates with dust collection chamber, and power supply can make the negative pressure in dust collection chamber, and capture the dust that escapes when connecting structure moves switching through dust absorption channel. The utility model's advantage lies in, dust removal efficiency is high, simple structure and low in manufacturing cost.

Description

Technical Field

[0001] This utility model relates to the field of dust removal device technology, and in particular to a dust removal device for vacuum circulation degassing equipment. Background Technology

[0002] Vacuum circulation degassing equipment not only removes harmful gases such as hydrogen, oxygen, and nitrogen from molten steel, but also precisely controls the composition and temperature of the steel, making it a key piece of equipment for producing high-quality steel products such as high-end automotive steel and electrical steel. To improve the continuous operation capability of vacuum circulation degassing equipment, existing technologies generally employ a redundant dual-air-cooler design. This involves symmetrically installing two sets of air coolers on both sides of the extraction pipeline, equipped with movable and lifting bend assemblies, and using hydraulic or electric drive to switch between the extraction pipeline and the air coolers on both sides. However, during the switching process, a large amount of dust escapes from the extraction pipeline and the air cooler interfaces. This not only pollutes the working environment and endangers the health of operators, but also negatively impacts the long-term stability of the equipment. Utility Model Content

[0003] In view of the above-mentioned shortcomings of the existing technology, the technical problem to be solved by this utility model is to propose a dust removal device for vacuum circulation degassing equipment that has high dust removal efficiency, simple structure and low manufacturing cost.

[0004] The technical solution adopted by this utility model to solve its technical problem is a dust removal device for a vacuum circulation degassing equipment. The vacuum circulation degassing equipment includes a main exhaust port, a first air cooler port, a second air cooler port, and a connecting structure respectively disposed on a base. The connecting structure can move and switch between the main exhaust port, the first air cooler port, and the second air cooler port. The dust removal device includes:

[0005] A dust collection structure is provided above the base and has a dust collection chamber. The horizontal projection of the dust collection chamber can always cover the main exhaust port, the first air cooler port, the second air cooler port, and the connecting structure.

[0006] A dust collection assembly includes a dust collection channel and a power source. One end of the dust collection channel is connected to the power source, and the other end is connected to the dust collection chamber. The power source can generate negative pressure in the dust collection chamber and can capture dust that escapes when the connecting structure moves and switches through the dust collection channel.

[0007] Furthermore, the dust collection structure includes an intake port communicating with the dust collection chamber, and the length of the intake port is greater than or equal to the sum of the pipe diameters of the main exhaust port, the first air cooler port, and the second air cooler port, and the total travel distance of the connecting structure.

[0008] Furthermore, the dust collection structure includes an outlet communicating with the dust collection chamber, the dust suction assembly includes a suction pipe and a first shield, the dust suction channel is disposed in the suction pipe, the suction pipe passes through the outlet and always has a gap between it and the outlet, the first shield is arranged circumferentially along the suction pipe and can always close the gap, and the dust collection structure can move relative to the suction pipe and the first shield.

[0009] Furthermore, the length of the outlet is greater than or equal to the sum of the diameter of the suction pipe and the travel distance of the dust collection structure, the width of the outlet is greater than the diameter of the suction pipe, and the size of the first shielding member is greater than the size of the outlet.

[0010] Furthermore, the first shielding member is detachably fitted onto the suction pipe and located inside or outside the dust collection chamber.

[0011] Furthermore, the first shielding member has a sliding structure between itself and the inner or outer side of the dust collection chamber, and the sliding structure is arranged along the moving direction of the dust collection structure.

[0012] Furthermore, a support frame is movably provided on the base, and the connecting structure is vertically mounted on the support frame; the dust collection structure is detachably mounted on the support frame, and the dust collection chamber has space for the connecting structure to be raised and lowered.

[0013] Furthermore, the dust collection structure includes a hollow frame, which is composed of several crossbeams and longitudinal beams, and the crossbeams and longitudinal beams are detachably connected by fasteners.

[0014] Furthermore, the crossbeam and the longitudinal beam are spliced ​​together to form a number of installation ports. The dust collection structure also includes a number of second shielding members that correspond one-to-one with the installation ports. The second shielding members are detachably disposed on the installation ports and block the installation ports.

[0015] Furthermore, the second shielding element is an aluminum sheet or a steel sheet.

[0016] Compared with the prior art, the present invention has at least the following beneficial effects:

[0017] 1. In this utility model, the dust removal device includes a dust collection structure, a dust suction channel, and a power source. The dust collection structure is located above the base and has a dust collection chamber. The horizontal projection of the dust collection chamber can always cover the main exhaust port, the first air cooler port, the second air cooler port, and the connecting structure. One end of the dust suction channel is connected to the power source, and the other end is connected to the dust collection chamber. The power source can generate negative pressure in the dust collection chamber and can capture dust that escapes when the connecting structure moves and switches through the dust suction channel. This design can fully cover the dust escape area and remove dust, significantly improving the air quality of the working environment and ensuring the cleanliness of the workspace and the health and safety of the operators.

[0018] 2. In this utility model, the dust collection structure includes an intake port communicating with the dust collection chamber, and the length of the intake port is greater than or equal to the sum of the pipe diameters of the main exhaust port, the first air cooler port, and the second air cooler port, plus the total travel distance of the connecting structure. This design, by adapting to the port size and travel range, ensures that the dust escape area is completely covered, thereby improving the capture efficiency and reducing the risk of leakage.

[0019] 3. In this utility model, the dust collection component includes a dust collection pipe and a first blocking member. The dust collection channel is located on the dust collection pipe, which passes through the outlet and always maintains a gap with the outlet. The first blocking member is arranged circumferentially along the dust collection pipe and can always close the gap. The dust collection structure can move relative to the dust collection pipe and the first blocking member. This design allows the first blocking member to continuously close the gap during the movement of the dust collection structure, which avoids interference between the dust collection structure and the dust collection pipe, prevents dust from escaping through the gap, and ensures negative pressure stability. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the dust removal device of this utility model assembled on a vacuum circulation degassing device.

[0021] Figure 2 This is a partial structural schematic diagram of the vacuum circulation degassing device in this utility model.

[0022] Figure 3 This is a partial structural cross-sectional view of the dust removal device of this utility model after assembly.

[0023] Figure 4 for Figure 3 A schematic diagram of the structure after the vacuuming components are hidden.

[0024] Figure 5 for Figure 3 A cross-sectional view from another perspective.

[0025] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically: 100, dust collection structure; 101, dust collection chamber; 110, hollow frame; 111, crossbeam; 112, longitudinal beam; 120, second shield; 130, suction inlet; 140, discharge outlet; 200, suction pipe; 300, first shield; 400, base; 410, main exhaust port; 420, first air cooler port; 430, second air cooler port; 440, connecting structure; 500, main air extraction pipe; 600, first air cooler; 700, second air cooler; 800, support frame; 900, lifting cylinder. Detailed Implementation

[0026] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0027] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0028] Furthermore, in this utility model, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0029] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0031] like Figures 1 to 5 As shown, in this embodiment, a dust removal device for a vacuum circulation degassing equipment includes a main exhaust port 410, a first air cooler port 420, a second air cooler port 430, and a connecting structure 440, all respectively disposed on a base 400. The connecting structure 440 is movable and switchable between the main exhaust port 410, the first air cooler port 420, and the second air cooler port 430. The dust removal device includes:

[0032] The dust collection structure 100 is located above the base 400 and has a dust collection chamber 101. The horizontal projection of the dust collection chamber 101 can always cover the main exhaust port 410, the first air cooler port 420, the second air cooler port 430 and the connecting structure 440.

[0033] The dust collection assembly includes a dust collection channel and a power source (not shown in the figure). One end of the dust collection channel is connected to the power source, and the other end is connected to the dust collection chamber 101. The power source can generate negative pressure inside the dust collection chamber 101 and capture dust that escapes during the movement and switching of the connecting structure 440 through the dust collection channel. This design can fully cover the dust escape area and remove dust, significantly improving the air quality of the working environment and ensuring the cleanliness of the workspace and the health and safety of the operators.

[0034] Specifically, the dust removal device of this application is mainly used in vacuum circulation degassing equipment. Preferably, the vacuum circulation degassing equipment is an RH furnace.

[0035] like Figure 1 , Figure 2As shown, in this embodiment, the vacuum circulation degassing device includes a base 400, a main extraction pipe 500, a first air cooler 600, a second air cooler 700, and a main exhaust port 410, a first air cooler port 420, a second air cooler port 430, and a connecting structure 440, all respectively disposed on the base 400. The base 400 serves as the fundamental support structure for the entire device, bearing and fixing other components. The first air cooler port 420, the main exhaust port 410, and the second air cooler port 430 are arranged horizontally and equidistantly, passing through the base 400 to connect corresponding pipes and components. The main extraction pipe 500 is detachably connected to the main exhaust port 410 to extract waste gas from the vacuum circulation degassing device, achieving degassing treatment of the molten steel. The first air cooler 600 is detachably connected to the first air cooler interface 420, and the second air cooler 700 is detachably connected to the second air cooler interface 430. Both are used to cool the high-temperature gas discharged from the main exhaust pipe 500, preventing overheating and damage to downstream equipment. One end of the connection structure 440 is plugged into the main exhaust interface 410, and the other end is selectively plugged into either the first air cooler interface 420 or the second air cooler interface 430. This allows for switching between the main exhaust pipe 500 and the first air cooler 600 or the second air cooler 700, thereby enabling continuous operation.

[0036] Preferably, in this embodiment, the connecting structure 440 is a hollow bend, and each end of the bend has a sealing ring. This design effectively prevents gas leakage at the interface, ensuring the airtightness of the entire system.

[0037] In this embodiment, the vacuum circulation degassing equipment also includes a drive mechanism, which comprises a support frame 800 movably mounted on the base 400 and a lifting cylinder 900 vertically and detachably mounted on the support frame 800. The connecting structure 440 is connected to the support frame 800 via the lifting cylinder 900. This design allows the connecting structure 440 to move and switch between the main exhaust port 410, the first air cooler port 420, and the second air cooler port 430, achieving not only efficient port switching but also improving overall performance and reliability, providing a strong guarantee for the production of high-quality steel.

[0038] In this embodiment, when the connecting structure 440 moves and switches, it first rises via the lifting cylinder 900 to separate from the main exhaust port 410 and the first air cooler port 420 or the second air cooler port 430. Then, it moves horizontally via the support frame 800. When the two ends of the connecting structure 440 are respectively moved to directly above the main exhaust port 410 and the second air cooler port 430 or the first air cooler port 420, it descends via the lifting cylinder 900 and docks with the main exhaust port 410 and the second air cooler port 430 or the first air cooler port 420 to achieve the switching of different ports.

[0039] like Figures 1 to 5 As shown, because the connecting structure 440 separates from each interface during the switching process, a large amount of dust escapes from the main exhaust port 410 and the first air cooler port 420 or the second air cooler port 430. To address this, this solution integrates a dedicated dust removal device into the vacuum circulation degassing equipment. This dust removal device includes a dust collection structure 100 and a dust suction assembly, used to collect the escaped dust during the switching process, ensuring optimal dust capture under any operating conditions.

[0040] In this embodiment, the dust collection structure 100 is located directly above the base 400 and has a dust collection chamber 101. The horizontal projection of the dust collection chamber 101 can always cover the main exhaust port 410, the first air cooler port 420, the second air cooler port 430, and the connecting structure 440. That is, the dust collection structure 100 can fully cover all key ports, so that dust can be effectively captured under any operating condition, effectively preventing dust from escaping from these ports. Preferably, the dust collection chamber 101 can be arranged as a rectangle or an isosceles trapezoid as needed.

[0041] In this embodiment, the dust collection structure 100 is detachably mounted on the support frame 800 or the base 400, and the dust collection chamber 101 has space for the connecting structure 440 to be raised and lowered. This design improves the ease of disassembly, assembly, and maintenance of the dust collection structure 100, and ensures that the connecting structure 440 can be freely switched between different interfaces without interference from the dust collection structure 100, thus guaranteeing smooth and reliable operation.

[0042] Preferably, in this embodiment, the dust collection structure 100 is detachably mounted on the support frame 800 by fasteners and can move synchronously with the movement of the support frame 800. This design reduces the size and production cost of the dust collection structure 100 while ensuring dust collection effect.

[0043] In this embodiment, the dust collection structure 100 includes a hollow frame 110, which is composed of several crossbeams 111 and longitudinal beams 112, and the crossbeams 111 and longitudinal beams 112 are detachably connected by fasteners. Preferably, the crossbeams 111 and longitudinal beams 112 are made of high-strength metal materials (such as aluminum alloy or steel). This design not only ensures the ease of disassembly and maintenance of the dust collection structure 100 and its overall lightweight nature, but also ensures the strength of the dust collection structure 100, thereby ensuring its stability under high load conditions.

[0044] In this embodiment, the crossbeams 111 and longitudinal beams 112 are arranged intersectingly and, after splicing, form several mounting ports communicating with the dust collection chamber 101. These mounting ports are rectangular or triangular and are used to install the second shielding member 120. This design provides a clear installation position for the second shielding member 120, ensuring that the shielding member can be quickly and accurately installed in the designated area. This not only improves installation efficiency but also reduces sealing problems caused by inaccurate positioning. Furthermore, it allows the second shielding member 120 to be quickly disassembled and replaced.

[0045] In this embodiment, the dust collection structure 100 further includes several second shielding members 120 that correspond one-to-one with the mounting opening and have the same shape. The second shielding members 120 are detachably mounted on the mounting opening by fasteners and seal the mounting opening. The second shielding members 120 cooperate with the mounting opening to form a rectangular dust collection chamber 101 with openings at both ends. This design ensures the sealing of the dust collection chamber 101, and the modular design of the second shielding members 120 allows users to quickly install or remove them.

[0046] In this embodiment, the second shielding member 120 is an aluminum sheet or a steel sheet. Preferably, the second shielding member 120 is a steel sheet with a thickness of 0.8 mm. This design allows the dust collection structure 100 to withstand greater mechanical stress and wear, ensuring long-term stability and reliability while also taking into account lightweight design and production costs.

[0047] In this embodiment, the dust collection structure 100 includes an intake port 130 located at its bottom and communicating with the dust collection chamber 101. The length of the intake port 130 is greater than or equal to the sum of the diameters of the main exhaust port 410, the first air cooler port 420, and the second air cooler port 430, plus the total travel distance of the connecting structure 440. This design, by adapting to the interface size and travel range, ensures that the intake port 130 can completely cover the area where dust may be generated, regardless of the position of the connecting structure 440. This not only improves dust capture efficiency but also reduces the risk of dust leakage.

[0048] In this embodiment, the dust collection structure 100 also includes an outlet 140 located at its top and communicating with the dust collection chamber 101. The length of the outlet 140 is greater than or equal to the sum of the diameter of the suction pipe 200 and the travel distance of the dust collection structure 100, and the width of the outlet 140 is greater than the diameter of the suction pipe 200. This design avoids interference between the dust collection structure 100 and the suction pipe 200 when the support frame 800 moves, effectively reducing the risk of failure due to mechanical collision and improving operational stability.

[0049] In this embodiment, the dust collection assembly includes a dust collection channel and a power source (not shown in the figure). One end of the dust collection channel is connected to the power source, and the other end is connected to the dust collection chamber 101, so that dust can be guided into the dust collection chamber 101 along a designated path. The power source is a vacuum pump or a fan, which can generate negative pressure in the dust collection chamber 101, thereby capturing dust that escapes during the movement and switching of the connecting structure 440 through the dust collection channel.

[0050] In this embodiment, the dust collection assembly includes a dust collection pipe 200 and a first shield 300. The dust collection channel is located inside the dust collection pipe 200 and extends along the length of the dust collection pipe 200, ensuring that dust can be efficiently captured and transferred to subsequent processing equipment, while avoiding dust leakage.

[0051] In this embodiment, one end of the suction pipe 200 is fixed outside the dust collection structure 100, and the other end is fixedly inserted into the outlet 140, with a gap always maintained between the suction pipe 200 and the outlet 140. The first shielding member 300 is arranged circumferentially along the suction pipe 200 and can always close the gap, while the dust collection structure 100 can move relative to the suction pipe 200 and the first shielding member 300. This design allows the first shielding member 300 to continuously close the gap during the movement of the dust collection structure 100, avoiding interference between the dust collection structure 100 and the suction pipe 200, preventing dust from escaping through the gap, and ensuring negative pressure stability.

[0052] In this embodiment, the first shielding member 300 is rectangular in shape, and its size is larger than that of the outlet 140. This design ensures that no matter how the dust collection structure 100 moves or changes position, the first shielding member 300 can always completely block the gap between the suction pipe 200 and the outlet 140, thus avoiding dust leakage caused by the gap being exposed.

[0053] In this embodiment, the first shielding member 300 is detachably sleeved on the suction pipe 200 and located inside or outside the dust collection chamber 101. Preferably, the first shielding member 300 is located inside the dust collection chamber 101. The environment inside the dust collection chamber 101 is relatively stable, reducing the impact of external factors on the first shielding member 300 and extending its service life. It should be noted that during the assembly of the dust removal equipment, the suction assembly is installed first and then the dust collection structure 100 is installed, ensuring that the first shielding member 300 can be smoothly installed inside the dust collection structure 100.

[0054] To further ensure the smooth movement of the dust collection structure 100, in this embodiment, a sliding structure (not shown in the figure) is provided between the first shielding member 300 and the inner or outer side of the dust collection chamber 101. This sliding structure is arranged along the moving direction of the dust collection structure 100. This design reduces the frictional resistance when the dust collection structure 100 moves, ensuring the smooth movement of the dust collection structure 100. Furthermore, the sliding structure can also cooperate with the first shielding member 300 to block the gap, ensuring that the first shielding member 300 always effectively blocks the gap between the suction pipe 200 and the discharge port 140.

Claims

1. A dust removal device for a vacuum circulating degassing equipment, the vacuum circulating degassing equipment comprising a main exhaust port, a first air cooler port, a second air cooler port, and a connecting structure respectively disposed on a base, the connecting structure being movable and switchable between the main exhaust port, the first air cooler port, and the second air cooler port, characterized in that, The dust removal device includes: A dust collection structure is provided above the base and has a dust collection chamber. The horizontal projection of the dust collection chamber can always cover the main exhaust port, the first air cooler port, the second air cooler port, and the connecting structure. A dust collection assembly includes a dust collection channel and a power source. One end of the dust collection channel is connected to the power source, and the other end is connected to the dust collection chamber. The power source can generate negative pressure in the dust collection chamber and can capture dust that escapes when the connecting structure moves and switches through the dust collection channel.

2. The dust removal device for a vacuum circulating degassing equipment according to claim 1, characterized in that, The dust collection structure includes an intake port communicating with the dust collection chamber. The length of the intake port is greater than or equal to the sum of the pipe diameters of the main exhaust port, the first air cooler port, and the second air cooler port, and the total travel distance of the connecting structure.

3. The dust removal device for a vacuum circulating degassing equipment according to claim 1, characterized in that, The dust collection structure includes an outlet communicating with the dust collection chamber. The dust collection assembly includes a suction pipe and a first shield. The dust collection channel is disposed inside the suction pipe. The suction pipe passes through the outlet and always has a gap between it and the outlet. The first shield is arranged circumferentially along the suction pipe and can always close the gap. The dust collection structure can move relative to the suction pipe and the first shield.

4. A dust removal device for a vacuum circulating degassing equipment according to claim 3, characterized in that, The length of the outlet is greater than or equal to the sum of the diameter of the suction pipe and the travel distance of the dust collection structure, the width of the outlet is greater than the diameter of the suction pipe, and the size of the first shield is greater than the size of the outlet.

5. A dust removal device for a vacuum circulating degassing equipment according to claim 3, characterized in that, The first shielding member is detachably fitted onto the suction pipe and is located inside or outside the dust collection chamber.

6. A dust removal device for a vacuum circulating degassing equipment according to claim 5, characterized in that, The first shielding member has a sliding structure between itself and the inner or outer side of the dust collection chamber, and the sliding structure is arranged along the moving direction of the dust collection structure.

7. A dust removal device for a vacuum circulating degassing equipment according to claim 1, characterized in that, The base is movably provided with a support frame, and the connecting structure is detachably mounted on the support frame; the dust collection structure is detachably mounted on the support frame, and the dust collection chamber has space for the connecting structure to be raised and lowered.

8. A dust removal device for a vacuum circulating degassing equipment according to claim 7, characterized in that, The dust collection structure includes a hollow frame, which is composed of several horizontal beams and vertical beams, and the horizontal beams and vertical beams are detachably connected by fasteners.

9. A dust removal device for a vacuum circulating degassing equipment according to claim 8, characterized in that, The crossbeam and the longitudinal beam are spliced ​​together to form a number of installation ports. The dust collection structure also includes a number of second shielding members that correspond one-to-one with the installation ports. The second shielding members are detachably installed on the installation ports and block the installation ports.

10. A dust removal device for a vacuum circulating degassing equipment according to claim 9, characterized in that, The second shielding element is an aluminum sheet or a steel sheet.

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