Dust diversion device for thermal spraying dust removal system
By designing an inner and outer jacket structure and cooling components in the dust collection equipment, the problem of high-temperature dust directly entering the dust collector was solved, effectively reducing the dust temperature and extending the service life of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WEIZHONG NEW MATERIALS (YUNNAN) CO LTD
- Filing Date
- 2025-09-09
- Publication Date
- 2026-08-04
AI Technical Summary
High-temperature fumes directly enter the dust collector body, causing the internal parts of the dust collector to age and affecting its service life.
A dust collection device was designed, including a dust collection pipe and a cooling component. The dust collection pipe consists of an inner sleeve and an outer sleeve. The inner sleeve is equipped with a guide plate and a baffle. The outer sleeve is equipped with a cooling chamber and a through pipe. A fan sends outside air into the cooling chamber and into the inner sleeve through the through pipe to reduce the temperature of the smoke and dust.
It effectively reduces the temperature of smoke and dust, preventing high-temperature smoke and dust from directly affecting the internal components of the vacuum cleaner, thus slowing down equipment aging and extending its service life.
Smart Images
Figure CN224586586U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of thermal spraying equipment, specifically to a dust diversion device for a thermal spraying dust removal system. Background Technology
[0002] Thermal spraying technology is widely used in machinery, aerospace, and other fields. It involves melting metallic or non-metallic materials using a high-temperature heat source and then spraying the melted material onto the workpiece surface at high speed to form a coating. During this process, the melting and atomization of the material generates fumes containing fine particles. Thermal spraying dust collection systems are auxiliary systems adapted to this technology, collecting and treating the generated fumes to help create a clean working environment and ensure the orderly conduct of the thermal spraying process. They are common supporting facilities in thermal spraying production.
[0003] Utility model patent CN212451592U discloses a dust removal device for thermal spraying of metal surfaces. This device includes a dust collector body, a connecting pipe, an inlet pipe, a drying mechanism, a dehumidification mechanism, absorbent cotton, a fixing block, a locking block, and a spring. The beneficial effects of this utility model are: absorbent cotton is fixed to the end of the fixing block away from the drying mechanism, and absorbent cotton is sleeved inside the connecting pipe, thus facilitating the dehumidification of the high-humidity spraying dust through the absorbent cotton, thereby protecting the filter cartridge in the dust collector and extending its service life.
[0004] The dust removal device for thermal spraying of metal surfaces generates high-temperature fumes. These high-temperature fumes directly enter the dust collector body through the inlet pipe and connecting pipe. The high-temperature fumes, without being cooled, will continue to act on the internal components of the dust collector body. Long-term use can easily lead to aging and performance degradation of the internal parts of the dust collector body, affecting the normal service life of the dust collection equipment. In view of this, we propose a fumes diversion device for thermal spraying dust removal system. Utility Model Content
[0005] The purpose of this invention is to provide a dust diversion device for a thermal spraying dust removal system to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: A dust diversion device for a thermal spraying dust removal system includes a dust collection device. The dust collection device is equipped with a dust collection pipe, the end of which extends into the thermal spraying device. The dust collection pipe includes an outer sleeve, a dust collection hood disposed inside the thermal spraying device, and several cooling components mounted on the outer sleeve. An inner sleeve is fitted inside the outer sleeve, and a connecting seat is connected to the tail end of the inner sleeve. The connecting seat is fixed to the outer wall of the thermal spraying device. The cooling assembly includes a cooling chamber disposed above the outer sleeve and several through pipes connected to the outside of the cooling chamber. The end of each through pipe passes through the outer sleeve and is fixedly connected to the inner sleeve. The through pipes are connected to the inside of the inner sleeve. A fan is installed at the top of the cooling chamber. When the fan is working, it sends outside air into the cooling chamber and into the inner sleeve along the through pipes.
[0007] Preferably, the outer wall of the thermal spraying equipment has a transparent window, and the end of the dust suction hood and the tail end of the connecting seat are respectively installed on the inner and outer sides of the thermal spraying equipment and connected through the window; This setting ensures that fumes from the thermal spraying equipment only enter the suction pipe through the window, reducing fumes spillage, while also ensuring a stable connection between the suction hood and the connector.
[0008] Preferably, a plurality of partitions are provided between the inner sleeve and the outer sleeve. The partitions are sleeved on the outside of the inner sleeve and are arranged at equal intervals along the axial direction of the inner sleeve. The partitions are used to maintain the position of the inner sleeve inside the outer sleeve. This design allows the partition to evenly distribute the weight of the inner sleeve, preventing the inner sleeve from shifting inside the outer sleeve, while also reducing direct contact between the two and lowering the rate of heat conduction.
[0009] Preferably, a plurality of guide plates are fixed on the inner wall of the inner sleeve, and the guide plates are inclined on the inner wall of the inner sleeve. The guide plates are used to guide the movement direction of the smoke and dust in the inner sleeve. This feature guides the smoke and dust to rotate within the inner sleeve, preventing particulate matter from accumulating at the bottom of the sleeve and increasing the residence time of the smoke and dust within the sleeve.
[0010] Preferably, the cooling chamber has a hollow box structure, and an opening is provided at the top of the cooling chamber, with the fan cover located on top of the opening; In this setup, the hollow box structure can accommodate outside air, and the opening, in conjunction with the fan enclosure, can efficiently draw outside air into the cooling chamber.
[0011] Preferably, a fixed sleeve is fixed to the top of the cooling chamber, the fixed sleeve is sleeved on the outside of the opening, a plurality of windows are opened on the outer peripheral surface of the fixed sleeve, a rotating sleeve is sleeved on the outside of the fixed sleeve, a plurality of side openings are opened on the outer peripheral surface of the rotating sleeve, and a rotating handle is installed at the top of the rotating sleeve. By rotating the rotating handle, the rotating handle can drive the rotating sleeve to rotate on the fixed sleeve. The air intake can be controlled by controlling the overlap state of the side openings and the windows. In this setup, the ventilation window helps to introduce outside air. The rotating handle drives the rotating sleeve to rotate, and by adjusting the overlap between the side opening and the ventilation window, the amount of air entering the cooling chamber can be flexibly controlled.
[0012] Preferably, the bottom end of the cooling chamber is fixed with a plurality of support legs, and the bottom end of the support legs is fixed to the top surface of the outer sleeve; This setup allows the cooling chamber to be stably supported above the outer sleeve, preventing vibrations from the fan causing the cooling chamber to shift and ensuring a stable connection between the through pipe and the inner sleeve.
[0013] Preferably, the end of the tube is threadedly connected to an end sleeve, the end of the end sleeve is closed, and a plurality of through grooves are formed in a ring array on the outer circumferential surface of the end sleeve with the axis of the end sleeve as the center. When outside air enters the tube, the air is dispersed from the plurality of through grooves into the inner sleeve. In this design, the closed end prevents air from directly impacting the inner wall of the inner sleeve, and the annular array of through slots allows air to be evenly discharged into the inner sleeve from multiple directions, ensuring that the air comes into full contact with the high-temperature smoke and dust.
[0014] Compared with the prior art, the beneficial effects of this utility model are: This thermal spraying dust removal system's dust diversion device, through its cooling components, allows outside air to be drawn into the cooling chamber by a fan at the top of the cooling chamber and guided through a pipe into the inner sleeve. This allows the outside air to come into contact with the high-temperature dust inside the inner sleeve, cooling down the dust and reducing its temperature when it enters the dust collection equipment. This prevents the high-temperature dust from directly affecting the internal components of the dust collection equipment, slows down the aging of internal parts, ensures the normal performance of the dust collection equipment, and extends its service life. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is an exploded view of the vacuum cleaner tube in this utility model; Figure 3 This is a partial cross-sectional view of the outer sleeve in this utility model; Figure 4 This is an exploded view of the cooling component in this utility model; Figure 5 This is a schematic diagram of the structure of the middle sleeve of this utility model; The meanings of the labels in the diagram are as follows: 100. Vacuum cleaning equipment; 200. Suction hose; 210. Outer sleeve; 211. Inner sleeve; 2111. Deflector; 212. Partition; 220. Suction hood; 230. Cooling assembly; 231. Cooling chamber; 2311. Opening; 2312. Fixing sleeve; 2313. Window; 2314. Fan; 2315. Support leg; 232. Through pipe; 2321. End sleeve; 2322. Through groove; 233. Rotating sleeve; 2331. Side opening; 2332. Rotating handle; 240. Connecting seat; 300. Thermal spraying equipment. Detailed Implementation
[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.
[0017] Example 1 Please see Figures 1-3 The dust diversion device for a thermal spraying dust removal system includes a dust collection device 100, on which a dust collection pipe 200 is installed. The end of the dust collection pipe 200 extends into the thermal spraying equipment 300. The dust collection pipe 200 includes an outer sleeve 210 and a dust collection hood 220 installed inside the thermal spraying equipment 300. An inner sleeve 211 is fitted inside the outer sleeve 210. Both the outer sleeve 210 and the inner sleeve 211 are made of high-temperature resistant stainless steel, which can withstand the high-temperature environment of the dust during thermal spraying and prevent the pipe from deforming due to high temperature. The tail end of the inner sleeve 211 is connected to a connecting seat 240, which is made of high-strength aluminum alloy, combining lightweight and structural integrity. The structure is stable and can securely connect the inner sleeve 211 to the thermal spraying equipment 300. A transparent window is opened on the outer wall of the thermal spraying equipment 300. The end of the dust suction hood 220 and the tail end of the connecting seat 240 are respectively installed on the inner and outer sides of the thermal spraying equipment 300 and connected through the window. This connection method can ensure that the smoke and dust in the thermal spraying equipment 300 only enter the dust suction pipe 200 through the window, reducing the spillage of smoke and dust. The connecting seat 240 is fixed to the outer wall of the thermal spraying equipment 300, and the dust suction hood 220 is fixed to the inner wall of the thermal spraying equipment 300. The dust suction hood 220 is made of wear-resistant cast iron, which can reduce the wear of particulate matter in the smoke and dust on its inner wall and extend its service life.
[0018] like Figure 3As shown, in this utility model, a plurality of partitions 212 are provided between the inner sleeve 211 and the outer sleeve 210. The partitions 212 are made of stainless steel and can maintain shape stability for a long time in high-temperature environments. The partitions 212 are sleeved on the outside of the inner sleeve 211 and are evenly spaced along the axial direction of the inner sleeve 211. This arrangement allows the partitions 212 to evenly distribute the weight of the inner sleeve 211 and prevent the inner sleeve 211 from shifting inside the outer sleeve 210. The partitions 212 are used to maintain the position of the inner sleeve 211 inside the outer sleeve 210. At the same time, they can reduce the direct contact between the inner sleeve 211 and the outer sleeve 210, reduce the heat conduction speed from the inner sleeve 211 to the outer sleeve 210, and the corrosion resistance of stainless steel can reduce the erosion of the partitions 212 by corrosive components in the dust.
[0019] like Figure 3 As shown, specifically, several guide plates 2111 are fixed on the inner wall of the inner sleeve 211. The guide plates 2111 are made of high-temperature resistant alloy material, which can adapt to the high-temperature dust environment inside the inner sleeve 211. The guide plates 2111 are inclined on the inner wall of the inner sleeve 211. The guide plates 2111 are used to guide the movement direction of the dust in the inner sleeve 211, so that the dust airflow generated when the dust in the thermal spraying equipment 300 is absorbed by the dust collection equipment 100 can move along the guide plates 2111, so that the dust rotates inside the inner sleeve 211, preventing the particles from accumulating at the bottom of the inner sleeve 211. This rotational movement can also increase the residence time of the dust in the inner sleeve 211, reserving buffer space for possible subsequent cooling treatment.
[0020] In this embodiment, the dust diversion device of the thermal spraying dust removal system operates as follows: First, the thermal spraying equipment 300 starts up and generates dust, and the dust collection equipment 100 starts up simultaneously, forming a negative pressure suction through the dust collection pipe 200. Then, the dust inside the thermal spraying equipment 300 is sucked into the dust collection hood 220 under the negative pressure. Since the dust collection hood 220 is fixed to the inner wall of the equipment and connected to the window, the dust can accurately enter the inner sleeve 211 through the window. Next, the dust entering the inner sleeve 211 rotates under the guidance of the inclined guide plate 2111, preventing particles from accumulating at the bottom of the inner sleeve 211. At the same time, the partition 212 between the inner sleeve 211 and the outer sleeve 210, with the structural strength of stainless steel, stably maintains the position of the inner sleeve 211, ensuring a smooth dust passage. Finally, the dust diverted by the guide enters the dust collection equipment 100 along the inner sleeve 211, completing the dust collection process.
[0021] Example 2 like Figure 1 , Figure 2 , Figure 4 and Figure 5As shown, the suction pipe 200 also includes several cooling components 230 installed on the outer sleeve 210. Each cooling component 230 includes a cooling chamber 231 located above the outer sleeve 210 and several connecting pipes 232 connected to the outside of the cooling chamber 231. The cooling chamber 231 is made of cold-rolled steel plate with a rust-proof surface treatment, extending its service life in outdoor or humid environments. The connecting pipes 232 are made of thin-walled stainless steel, combining thermal conductivity and corrosion resistance. The ends of the connecting pipes 232 pass through the outer sleeve 210 and are fixedly connected to the inner sleeve 211. 2. The cooling chamber 231 is connected to the interior of the inner sleeve 211. This connection structure ensures that air in the cooling chamber 231 can smoothly enter the inner sleeve 211. The cooling chamber 231 has a hollow box structure. A fan 2314 is installed at the top of the cooling chamber 231. The fan 2314 is a high-temperature resistant axial flow fan, which can operate stably in the warm environment around the cooling chamber 231. An opening 2311 is opened at the top of the cooling chamber 231, and the fan 2314 is covered on top of the opening 2311. This installation method allows the fan 2314 to efficiently draw outside air into the cooling chamber 231. When the fan 2314 is working, it sends outside air into the cooling chamber 231 and into the inner sleeve 211 along the through pipe 232. After the outside air comes into contact with the high-temperature dust in the inner sleeve 211, the temperature of the dust is reduced, preventing the high-temperature dust from directly entering the dust collection equipment 100 and damaging the internal components.
[0022] like Figure 4 As shown, in this embodiment, a fixing sleeve 2312 is fixed to the top of the cooling chamber 231. The fixing sleeve 2312 is made of brass, which has good ductility and wear resistance, and can reduce frictional loss between it and the rotating sleeve 233. The fixing sleeve 2312 is fitted on the outside of the opening 2311. Several windows 2313 are opened on the outer peripheral surface of the fixing sleeve 2312. The windows 2313 can help the opening 2311 introduce outside air. A rotating sleeve 233 is fitted on the outside of the fixing sleeve 2312. The rotating sleeve 233 is made of stainless steel, which can be used for a long time in the warm environment around the cooling chamber 231 and is not easily deformed. Several side openings 2331 are opened on the outer peripheral surface of the rotating sleeve 233. The top of 233 is equipped with a rotating handle 2332, which is made of ABS plastic with anti-slip texture on the surface for easy gripping and rotation by the operator. Rotating the handle 2332 causes the rotating sleeve 233 to rotate on the fixed sleeve 2312. The stainless steel rotating sleeve 233 reduces wear caused by long-term rotation and extends its service life. The air intake can be controlled by adjusting the overlap between the side opening 2331 and the window 2313. The air intake is maximized when the side opening 2331 and the window 2313 are fully overlapped, which can quickly reduce the temperature of high-temperature smoke and dust. When they are partially overlapped, the air intake can be adjusted according to the temperature of the smoke and dust to avoid excessive cold air affecting the normal operation of the vacuum cleaner 100.
[0023] like Figure 1 , Figure 2 and Figure 4 As shown, specifically, the bottom of the cooling chamber 231 is fixed with several support legs 2315. The support legs 2315 are made of stainless steel, have high structural strength, and can stably support the weight of the cooling chamber 231. The bottom of the support legs 2315 is fixed to the top surface of the outer sleeve 210. This fixing method can keep the cooling chamber 231 and the outer sleeve 210 relatively fixed, avoid the vibration generated by the fan 2314 during operation, and ensure the connection stability between the through pipe 232 and the inner sleeve 211.
[0024] like Figure 4 and Figure 5 As shown, the end of the tube 232 is further threaded with an end sleeve 2321. The end sleeve 2321 is made of stainless steel and can withstand the long-term impact of the airflow inside the tube 232 without being easily damaged. The end of the end sleeve 2321 is closed to prevent the air inside the tube 232 from directly impacting the inner wall of the inner sleeve 211. Several through grooves 2322 are arranged in a ring array around the axis of the end sleeve 2321 on the outer circumferential surface of the end sleeve 2321. The stainless steel end sleeve 2321 can reduce the wear of particulate matter in the smoke on the edge of the through grooves 2322 and extend the effective service time of the through grooves 2322. This array distribution can allow air to enter the inner sleeve 211 evenly from multiple directions and fully contact the high-temperature smoke, thereby improving the cooling effect. When outside air enters the tube 232, the air is dispersed from the multiple through grooves 2322 and discharged into the inner sleeve 211.
[0025] It is worth noting that the fan 2314 involved in this utility model is existing conventional technology, and will not be described in detail here.
[0026] In this embodiment, when using the dust diversion device of the thermal spraying dust removal system, firstly, the thermal spraying equipment 300 and the dust collection equipment 100 are started, and simultaneously the fan 2314 in the cooling assembly 230 is turned on. The fan 2314 draws in outside air through the opening 2311 at the top of the cooling chamber 231. Then, according to the temperature of the dust generated by the thermal spraying, the operator rotates the handle 2332 to adjust the position of the stainless steel rotating sleeve 233. Due to the wear resistance of the stainless steel material, the rotating sleeve 233 is not easily worn when rotating on the fixed sleeve 2312. The position is adjusted by controlling the side... The overlapping state of the inlet 2331 and the window 2313 adjusts the air intake volume to ensure that the cooling chamber 231 receives a suitable amount of air. Then, the air in the cooling chamber 231 is transported to the stainless steel end sleeve 2321 through the pipe 232. The end sleeve 2321 can withstand the impact of airflow and is not easily damaged. The air is dispersed from the groove 2322 on the outer periphery of the end sleeve 2321 into the inner sleeve 211, where it comes into full contact with the high-temperature dust in the inner sleeve 211, reducing the temperature of the dust. Finally, the cooled dust is stably guided into the dust collection equipment 100 by the guide plate 2111.
[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A dust diversion device for a thermal spraying dust removal system, comprising a dust collection device (100), wherein a dust collection pipe (200) is installed on the dust collection device (100), and the end of the dust collection pipe (200) extends into the thermal spraying device (300), characterized in that: The suction pipe (200) includes an outer sleeve (210), a suction hood (220) disposed inside the thermal spraying equipment (300), and a plurality of cooling components (230) installed on the outer sleeve (210). An inner sleeve (211) is sleeved inside the outer sleeve (210), and a connecting seat (240) is connected to the tail end of the inner sleeve (211). The connecting seat (240) is fixed on the outer wall of the thermal spraying equipment (300). The cooling assembly (230) includes a cooling chamber (231) disposed above the outer sleeve (210) and several through pipes (232) connected to the outside of the cooling chamber (231). The end of the through pipe (232) passes through the outer sleeve (210) and is fixedly connected to the inner sleeve (211). The through pipe (232) is connected to the inside of the inner sleeve (211). A fan (2314) is installed at the top of the cooling chamber (231). When the fan (2314) is working, it sends outside air into the cooling chamber (231) and into the inner sleeve (211) along the through pipe (232).
2. The dust diversion device for the thermal spraying dust removal system according to claim 1, characterized in that: The thermal spraying equipment (300) has a transparent window on its outer wall. The end of the dust hood (220) and the tail end of the connecting seat (240) are respectively installed on the inner and outer sides of the thermal spraying equipment (300) and connected through the window.
3. The dust diversion device for the thermal spraying dust removal system according to claim 1, characterized in that: A plurality of partitions (212) are provided between the inner sleeve (211) and the outer sleeve (210). The partitions (212) are sleeved on the outside of the inner sleeve (211) and are arranged at equal intervals along the axial direction of the inner sleeve (211). The partitions (212) are used to maintain the position of the inner sleeve (211) inside the outer sleeve (210).
4. The dust diversion device for a thermal spraying dust removal system according to claim 1, characterized in that: A plurality of guide plates (2111) are fixed on the inner wall of the inner sleeve (211). The guide plates (2111) are inclined on the inner wall of the inner sleeve (211) and are used to guide the movement direction of smoke and dust in the inner sleeve (211).
5. The dust diversion device for a thermal spraying dust removal system according to claim 1, characterized in that: The cooling chamber (231) has a hollow box structure, and an opening (2311) is provided at the top of the cooling chamber (231). The fan (2314) is covered on the top of the opening (2311).
6. The dust diversion device for a thermal spraying dust removal system according to claim 5, characterized in that: The top of the cooling chamber (231) is fixed with a fixed sleeve (2312), which is sleeved on the outside of the opening (2311). The outer peripheral surface of the fixed sleeve (2312) is provided with several windows (2313). The outside of the fixed sleeve (2312) is provided with a rotating sleeve (233), which is provided with several side openings (2331) on its outer peripheral surface. The top of the rotating sleeve (233) is equipped with a handle (2332). By rotating the handle (2332), the rotating sleeve (2332) can be driven to rotate on the fixed sleeve (2312). The air intake can be controlled by controlling the overlap state of the side openings (2331) and the windows (2313).
7. The dust diversion device for a thermal spraying dust removal system according to claim 1, characterized in that: The bottom end of the cooling chamber (231) is fixed with a number of support legs (2315), and the bottom end of the support legs (2315) is fixed to the top surface of the outer sleeve (210).
8. The dust diversion device for a thermal spraying dust removal system according to claim 1, characterized in that: The end of the tube (232) is threadedly connected to an end sleeve (2321). The end of the end sleeve (2321) is closed. Several through grooves (2322) are arranged in a ring array on the outer circumferential surface of the end sleeve (2321) with the axis of the end sleeve (2321) as the center. When outside air enters the tube (232), the air is dispersed from the multiple through grooves (2322) into the inner sleeve (211).