Efficient filtering mechanism of welding fume collecting device

Abstract

The utility model relates to welding environmental protection equipment technical field, concretely is a kind of welding fume collecting device high -efficient filtering mechanism, including collection cabinet, filtering collection mechanism and spraying mechanism, filtering collection mechanism and spraying mechanism are fixedly connected on collection cabinet, filtering collection mechanism includes the sliding groove of being set in the outer surface of collection cabinet. In the utility model, by the setting of sliding frame, intermediate filter screen and fine filter screen, the three-stage physical filtration structure of primary filter screen, intermediate filter screen and fine filter screen is formed, combined with harmful gas adsorption assembly, form complete filtration system, the welding fume particles of different particle sizes can be accurately intercepted, harmful gas in welding fume is processed specifically, improve the efficiency of filtration, effectively reduce the concentration of inhalable particulate matter in workshop, make the air after purification more close or reach national standard, greatly improve welding operation environment, reduce the risk of worker suffering from respiratory diseases and pneumoconiosis.

Description

Technical Field

[0001] This utility model relates to the field of welding environmental protection equipment technology, and in particular to a high-efficiency filtration mechanism for a welding fume collection device. Background Technology

[0002] In modern industrial production, welding technology is widely used in many fields such as automobile manufacturing, shipbuilding, and machining. However, the welding process generates a large amount of welding fumes containing metal oxides, harmful gases, and tiny particles. According to relevant research, the particle diameter in welding fumes is mostly between 0.1 and 10 micrometers, with particles smaller than 1 micrometer able to remain suspended in the air for extended periods, easily inhaled into the lungs, leading to pneumoconiosis, respiratory diseases, and other health problems. Simultaneously, harmful gases in welding fumes, such as ozone and nitrogen oxides, can also damage the human respiratory and nervous systems.

[0003] Existing technical solutions mostly use fixed connections for filter structures, requiring the entire filter chamber to be disassembled for replacement. This complex operation may affect production efficiency, and the effective filtration of harmful gases is inefficient, making it difficult to meet increasingly stringent environmental emission requirements.

[0004] To address the aforementioned problems, this utility model provides a high-efficiency filtration mechanism for a welding fume collection device. Utility Model Content

[0005] The purpose of this invention is to solve the problems of complex filter replacement, insufficient treatment of harmful gases, and low purification efficiency in the existing technology, and to propose a high-efficiency filtration mechanism for welding fume collection devices.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a high-efficiency filtration mechanism for a welding fume collection device, comprising a collection cabinet, a filtration and collection mechanism, and a spraying mechanism, wherein the filtration and collection mechanism and the spraying mechanism are fixedly connected to the collection cabinet, and the filtration and collection mechanism includes a sliding groove formed on the outer surface of the collection cabinet.

[0007] The filtration and collection mechanism includes a primary filter, a secondary filter, and a fine filter, all of which are slidably connected inside the collection cabinet.

[0008] The sliding groove is internally connected to a sliding frame. The sliding frame and the sliding groove are arranged at three equal intervals on the outer surface of the collection cabinet. The primary filter, intermediate filter and fine filter are threaded to both sides with connectors. The primary filter, intermediate filter and fine filter are threaded to the inside of the sliding frame through the connectors. The outer surface of the sliding frame is threaded to both sides with bolts.

[0009] Furthermore, bolts are threaded to both sides of the sliding frame, and the sliding frame is threaded to the outer surface of the collection cabinet via bolts. Pull-out handles are symmetrically arranged on the outer surface of the sliding frame.

[0010] Furthermore, the filter collection mechanism includes a smoke inlet threaded to the top of the collection cabinet, with limiting members threaded to both sides of the smoke inlet, and the top of the smoke inlet is funnel-shaped. The smoke inlet is threaded to the top of the collection cabinet through the limiting members.

[0011] Furthermore, a connecting plate is fixedly connected to the inner wall of the smoke inlet, a servo motor is fixedly connected to the top of the connecting plate, and a negative pressure fan is fixedly connected to the output end of the servo motor.

[0012] Furthermore, the inner wall of the smoke inlet is provided with a sliding groove, and a feed filter plate is slidably connected to the inner wall of the sliding groove. The feed filter plate is slidably connected to the inside of the smoke inlet through the sliding groove.

[0013] Furthermore, the spraying mechanism includes a stable base plate fixedly connected to the bottom of the collection cabinet, a water storage tank fixedly connected to the top of the stable base plate, and an injection port fixedly connected to the top of the water storage tank.

[0014] Furthermore, a water pump is fixedly connected to the top of the water storage tank, a water pump pipe is fixedly connected to the top of the water pump, and atomizing nozzles are evenly fixedly connected to the outer surface of the water pump pipe at four equal intervals. The atomizing nozzles are fixedly connected to the inside of the collection cabinet.

[0015] Compared with the prior art, the advantages and positive effects of this utility model are as follows: 1. In this utility model, the three-stage physical filtration structure consisting of a sliding frame, a medium-level filter, and a fine filter, combined with a harmful gas adsorption component, forms a complete filtration system. This system can accurately intercept welding fume particles of different sizes and specifically treat harmful gases in the welding fume, thereby improving filtration efficiency, effectively reducing the concentration of inhalable particulate matter in the workshop, making the purified air closer to or meeting national standards, greatly improving the welding working environment, and reducing the risk of workers suffering from respiratory diseases and pneumoconiosis.

[0016] 2. In this utility model, the water pumping pipe and the atomizing nozzle are set up to form a spraying mechanism that fully mixes with the welding fumes. Through coagulation and sedimentation, ultrafine particles are further removed, ultrafine particles that are difficult to be intercepted by the filter screen are removed, and some harmful gases are absorbed, thereby improving the comprehensive removal efficiency of ozone and nitrogen oxides. The water storage tank is a recyclable water resource, which reduces wastewater discharge. Attached Figure Description

[0017] Figure 1 A three-dimensional structural diagram of a high-efficiency filtration mechanism for a welding fume collection device is provided for this utility model. Figure 2 This utility model provides a schematic diagram of the sliding frame in the high-efficiency filtration mechanism of a welding fume collection device; Figure 3 This utility model proposes a high-efficiency filtration mechanism for a welding fume collection device. Figure 2 Enlarged view of point A; Figure 4 This utility model provides a structural schematic diagram of the fine filter screen in the high-efficiency filtration mechanism of a welding fume collection device; Figure 5 This utility model provides a structural schematic diagram of the atomizing nozzle in the high-efficiency filtration mechanism of a welding fume collection device; Figure 6 This utility model proposes a high-efficiency filtration mechanism for a welding fume collection device. Figure 5 Enlarged diagram of point B.

[0018] Legend: 1. Collection cabinet; 2. Filter collection mechanism; 21. Sliding groove; 22. Primary filter screen; 23. Intermediate filter screen; 24. Fine filter screen; 25. Sliding frame; 26. Connector; 27. Bolt; 28. Pull-out handle; 29. ​​Smoke inlet; 210. Limiting component; 211. Connecting plate; 212. Servo motor; 213. Negative pressure fan; 214. Sliding groove; 215. Feed filter plate; 3. Spraying mechanism; 31. Stabilizing base plate; 32. Water storage tank; 33. Liquid injection port; 34. Water pump; 35. Water pumping pipe; 36. Atomizing nozzle. Detailed Implementation

[0019] Please see Figures 1-6 This utility model provides a technical solution: a high-efficiency filtration mechanism for a welding fume collection device, including a collection cabinet 1, a filtration and collection mechanism 2 and a spraying mechanism 3. The filtration and collection mechanism 2 and the spraying mechanism 3 are fixedly connected to the collection cabinet 1. The filtration and collection mechanism 2 includes a sliding groove 21 formed on the outer surface of the collection cabinet 1.

[0020] The specific setup and function of its filter collection mechanism 2 and spray mechanism 3 will be explained below.

[0021] In this implementation scheme: the filter collection mechanism 2 includes a primary filter screen 22, a secondary filter screen 23 and a fine filter screen 24, all of which are slidably connected to the inside of the collection cabinet 1.

[0022] The sliding groove 21 is internally slidably connected to a sliding frame 25. The sliding frame 25 and the sliding groove 21 are arranged at three equal intervals on the outer surface of the collection cabinet 1. The primary filter 22, the intermediate filter 23 and the fine filter 24 are threadedly connected to the two sides by connectors 26. The primary filter 22, the intermediate filter 23 and the fine filter 24 are threadedly connected to the inside of the sliding frame 25 through the connectors 26. The outer surface of the sliding frame 25 is threadedly connected to the two sides by bolts 27.

[0023] The effects achieved by the above components are as follows: the three-stage filter screen forms a gradient filtration system. The primary filter screen 22 is made of stainless steel wire mesh, which has high strength and corrosion resistance and can withstand the high temperature and spatter impact generated during welding, reducing the burden on subsequent filter screens. The intermediate filter screen 23 is a pleated glass fiber filter screen, which greatly increases the filtration area by increasing the number of pleats, thus significantly reducing the particle concentration. The fine filter screen 24 is made of polyester fiber filter screen, which has small and uniform fiber pore size and excellent interception ability for small particles, ensuring that most particulate pollutants are effectively intercepted, making the welding fumes entering the subsequent processing stage cleaner.

[0024] Specifically, bolts 27 are threaded on both sides of the sliding frame 25, and the sliding frame 25 is threaded to the outer surface of the collection cabinet 1 through the bolts 27. Pull handles 28 are symmetrically arranged on the outer surface of the sliding frame 25.

[0025] The above components achieve the following effects: convenient installation and replacement of the filter screen. When the filter screen reaches the end of its service life or becomes clogged, simply unscrew the bolt 27 and pull the sliding frame 25 through the pull handle 28 to pull the sliding frame 25 containing the filter screen out of the sliding groove 21. This allows for quick disassembly and replacement of the new filter screen assembly without disassembling the entire filter chamber, greatly improving maintenance efficiency and reducing maintenance difficulty and time costs.

[0026] Specifically, the filter collection mechanism 2 includes a smoke inlet 29 threadedly connected to the top of the collection cabinet 1. Limiting members 210 are threadedly connected to both sides of the smoke inlet 29. The top of the smoke inlet 29 is funnel-shaped, and the smoke inlet 29 is threadedly connected to the top of the collection cabinet 1 through the limiting members 210.

[0027] The effects achieved by the above components are as follows: the funnel-shaped design effectively improves the efficiency of welding fume collection and reduces the spread of welding fumes in the workshop; the limiting component 210 ensures that the fume inlet 29 is tightly connected to the collection cabinet 1, ensuring the stability and sealing of the overall structure of the device, and preventing welding fumes from overflowing due to loose connections, which would affect the purification effect and the workshop environment.

[0028] Specifically, a connecting plate 211 is fixedly connected to the inner wall of the smoke inlet 29, a servo motor 212 is fixedly connected to the top of the connecting plate 211, and a negative pressure fan 213 is fixedly connected to the output end of the servo motor 212.

[0029] The effect achieved by the above components is as follows: the servo motor 212 automatically adjusts the speed of the negative pressure fan 213 according to the signal fed back by the welding fume concentration sensor. When the welding fume concentration generated at the welding station is high, the servo motor 212 drives the negative pressure fan 213 to accelerate its rotation, increase the air volume, and ensure rapid and efficient collection of welding fumes. When the welding fume concentration is low, the negative pressure fan 213 reduces its speed to save energy and reduce equipment operating noise, thereby achieving intelligent energy-saving operation.

[0030] Specifically, a sliding groove 214 is provided on the inner wall of the smoke inlet 29, and a feed filter plate 215 is slidably connected to the inner wall of the sliding groove 214. The feed filter plate 215 is slidably connected to the inside of the smoke inlet 29 through the sliding groove 214.

[0031] The effects achieved by the above components are as follows: the feed filter plate 215, as the first barrier for welding fumes entering the filter collection mechanism 2, can intercept larger welding slags in advance, preventing them from entering the subsequent filter screen, avoiding clogging of the filter screen and affecting the filtration efficiency, while protecting the internal precision components from damage caused by welding slag impact, and extending the service life of the filter screen and other components.

[0032] Specifically, the spraying mechanism 3 includes a stable base plate 31 fixedly connected to the bottom of the collection cabinet 1, a water storage tank 32 fixedly connected to the top of the stable base plate 31, and an injection port 33 fixedly connected to the top of the water storage tank 32.

[0033] The effects achieved by the above components are as follows: the stable base plate 31 provides a solid support for the water storage tank 32, ensuring that the spraying mechanism 3 remains stable during operation and preventing the water storage tank 32 from shifting or tipping over due to vibration or other factors. The water storage tank 32 is used to store spraying water and provide a water source for the atomizing nozzles 36. The liquid inlet 33 allows operators to regularly replenish water or add purification agents, such as flocculants, to the water storage tank 32 to enhance the spraying purification effect and maintain the continuous and stable operation of the spraying mechanism 3.

[0034] Specifically, a water pump 34 is fixedly connected to the top of the water storage tank 32, a water pump pipe 35 is fixedly connected to the top of the water pump 34, and atomizing nozzles 36 are evenly fixedly connected to the outer surface of the water pump pipe 35 at four equal intervals. The atomizing nozzles 36 are fixedly connected to the inside of the collection cabinet 1.

[0035] The effects achieved by the above components are as follows: the water pump 34 draws water from the water storage tank 32 and delivers it to each atomizing nozzle 36 through the water pumping pipe 35. After the atomizing nozzle 36 atomizes the water, it mixes thoroughly with the welding fumes entering the collection cabinet 1. By utilizing the inertial collision and coagulation between the water mist and the welding fume particles, the tiny particles combine to form larger particles, which then settle under gravity, thus effectively removing ultrafine particles. At the same time, the water mist can also absorb some water-soluble harmful gases, such as small amounts of hydrogen chloride and hydrogen fluoride produced during welding, further improving the welding fume purification effect and ensuring that the exhaust air is cleaner and more environmentally friendly.

[0036] Working principle: When welding fumes are generated during welding operations, the fumes first enter the filter collection mechanism 2 through the fume inlet 29. The funnel-shaped design of the fume inlet 29 and the suction force generated by the negative pressure fan 213 ensure that the welding fumes are drawn in quickly and efficiently. During the entry process, the feed filter plate 215 intercepts larger welding slag in advance. Subsequently, the welding fumes pass through a primary filter 22, a secondary filter 23, and a fine filter 24 in sequence. The primary filter 22 intercepts large particles, the secondary filter 23 removes medium-sized particles, and the fine filter 24 performs deep filtration on tiny particles. After three stages of physical filtration, most particulate pollutants are retained. Welding fumes enter the interior of the collection cabinet 1. At this time, the spray mechanism 3 is activated, and the water pump 34 draws water from the water storage tank 32 and delivers it to the atomizing nozzle 36 through the water pipe 35. The atomizing nozzle 36 atomizes the water into tiny water mist particles, which are fully mixed with the welding fumes. The water mist interacts with the ultrafine particles and harmful gases in the welding fumes, and further purifies the welding fumes through processes such as coagulation, sedimentation and absorption. Finally, the clean air, after undergoing both physical filtration and wet purification, is discharged from the exhaust port of the collection cabinet 1. The settled particulate pollutants and wastewater are collected at the bottom of the collection cabinet 1 and can be cleaned and treated regularly. Throughout the process, the servo motor 212 automatically adjusts the speed of the negative pressure fan 213 according to the welding fume concentration to ensure welding fume collection efficiency. At the same time, the design of the sliding frame 25 and the pull handle 28 makes it convenient for operators to quickly replace and maintain the filter screen, ensuring the continuous and stable operation of the filtration mechanism and efficient purification of welding fumes.

Claims

1. A high-efficiency filtration mechanism for a welding fume collection device, comprising a collection cabinet (1), a filtration and collection mechanism (2), and a spraying mechanism (3), characterized in that: The filter collection mechanism (2) and the spray mechanism (3) are fixedly connected to the collection cabinet (1). The filter collection mechanism (2) includes a sliding groove (21) opened on the outer surface of the collection cabinet (1). The filter collection mechanism (2) includes a primary filter (22), a secondary filter (23) and a fine filter (24), all of which are slidably connected to the inside of the collection cabinet (1). The sliding groove (21) is internally slidably connected to a sliding frame (25). The sliding frame (25) and the sliding groove (21) are arranged at three equal intervals on the outer surface of the collection cabinet (1). The primary filter (22), the intermediate filter (23) and the fine filter (24) are threadedly connected to the two sides of the primary filter (22), the intermediate filter (23) and the fine filter (24). The primary filter (22), the intermediate filter (23) and the fine filter (24) are threadedly connected to the inside of the sliding frame (25) through the connecting piece (26). The outer surface of the sliding frame (25) is threadedly connected to bolts (27).

2. The high-efficiency filtration mechanism of the welding fume collection device according to claim 1, characterized in that: The sliding frame (25) is threaded with bolts (27) on both sides. The sliding frame (25) is threaded to the outer surface of the collection cabinet (1) by bolts (27). The outer surface of the sliding frame (25) is symmetrically provided with pull handles (28).

3. The high-efficiency filtration mechanism of the welding fume collection device according to claim 1, characterized in that: The filter collection mechanism (2) includes a smoke inlet (29) threaded to the top of the collection cabinet (1), with limiting members (210) threaded to both sides of the smoke inlet (29), the top of the smoke inlet (29) being funnel-shaped, and the smoke inlet (29) being threaded to the top of the collection cabinet (1) through the limiting members (210).

4. The high-efficiency filtration mechanism of the welding fume collection device according to claim 3, characterized in that: A connecting plate (211) is fixedly connected to the inner wall of the smoke inlet (29), a servo motor (212) is fixedly connected to the top of the connecting plate (211), and a negative pressure fan (213) is fixedly connected to the output end of the servo motor (212).

5. The high-efficiency filtration mechanism of the welding fume collection device according to claim 4, characterized in that: The inner wall of the smoke inlet (29) is provided with a sliding groove (214), and a feed filter plate (215) is slidably connected to the inner wall of the sliding groove (214). The feed filter plate (215) is slidably connected to the inside of the smoke inlet (29) through the sliding groove (214).

6. The high-efficiency filtration mechanism of the welding fume collection device according to claim 1, characterized in that: The spraying mechanism (3) includes a stable base plate (31) fixedly connected to the bottom of the collection cabinet (1), a water storage tank (32) fixedly connected to the top of the stable base plate (31), and an injection port (33) fixedly connected to the top of the water storage tank (32).

7. The high-efficiency filtration mechanism of the welding fume collection device according to claim 6, characterized in that: A water pump (34) is fixedly connected to the top of the water storage tank (32), and a water pump pipe (35) is fixedly connected to the top of the water pump (34). Atomizing nozzles (36) are evenly fixedly connected to the outer surface of the water pump pipe (35) at four equal intervals. The atomizing nozzles (36) are fixedly connected to the inside of the collection cabinet (1).

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