An industrial exhaust gas collection device

Abstract

The utility model relates to an industrial waste gas collecting device belongs to waste gas collection technical field. This industrial waste gas collecting device, include: top suction hood and set up in the ventilation pipe of top suction hood upper portion, the collection mechanism includes setting up in the mechanical arm of top suction hood inside, one end of mechanical arm is installed in the inner wall of top suction hood and is provided with the collection shell in the other end, be provided with the dismounting assembly between collection shell and mechanical arm, through setting up the mechanical arm and collection shell that can adjust flexibly in the traditional top suction hood, realized the close -range accurate capture to the welding fume production point, cooperate top suction hood and carry out the absorption of welding fume to the work station, collection shell carries out accurate absorption to the welding fume that welding workpiece produces, thereby reduced the welding fume concentration in the work station range that top suction hood encloses, thereby reduced the direct threat of welding fume to the health of operating personnel, improved the substantial safety of working environment.

Description

Technical Field

[0001] This utility model relates to the field of waste gas collection technology, and in particular to an industrial waste gas collection device. Background Technology

[0002] Welding fumes in industrial waste gas are aerosol mixtures generated during high-temperature electric arc welding, mainly containing harmful substances such as metal oxides, ozone, and carbon monoxide. Collecting and treating these fumes is crucial, primarily to protect the health of operators and prevent respiratory diseases; secondly, it is essential to meet the mandatory requirements of national environmental protection regulations, achieving emission standards and avoiding environmental pollution and legal risks for enterprises. Industrial waste gas collection devices are required for this purpose.

[0003] Traditional technology mainly uses fixed top-mounted hoods to collect welding fumes. The negative pressure generated by the fan draws the fumes near the hood opening into the duct system. However, when using top-mounted hoods to collect welding fumes, the workers and their workstations are completely enclosed in a relatively sealed space, and the welding fumes are collected by negative pressure. This means that although the welding fumes generated during the welding process do not disperse into the workshop environment, the workers are always required to be near their workstations, resulting in a relatively high concentration of welding fumes, which poses a significant health hazard to the workers. Utility Model Content

[0004] Therefore, it is necessary to provide an industrial waste gas collection device to address the significant health hazards posed by traditional top-mounted suction hoods to workers.

[0005] An industrial waste gas collection device includes: a top suction hood and a ventilation pipe disposed above the top suction hood;

[0006] A collection mechanism includes a robotic arm disposed inside a top suction cover. One end of the robotic arm is mounted on the inner wall of the top suction cover, and the other end is provided with a collection shell. A disassembly assembly is provided between the collection shell and the robotic arm.

[0007] In one embodiment, the disassembly and assembly assembly includes a first connector fixedly connected to one end of the robotic arm, the surface of the first connector being provided with a connecting pipe, the connecting pipe being connected to a ventilation pipe via an air pump.

[0008] In one embodiment, a second connector is fixedly connected to one end of the top suction cover near the robotic arm, and the second connector is used in conjunction with the first connector.

[0009] In one embodiment, the surface of the second connector is provided with a plurality of positioning blocks, the positioning blocks being L-shaped blocks with curvature.

[0010] In one embodiment, the first connector has a positioning groove corresponding to the positioning block inside, and a slot is provided inside the first connector, the slot being disposed inside the positioning groove.

[0011] In one embodiment, a locking block is slidably connected inside the positioning block. The locking block is a right-angled trapezoidal block with the same curvature as the positioning block. A spring plate is connected inside the positioning block, and a spring is provided between the spring plate and the inner wall of the positioning block.

[0012] In one embodiment, a plurality of slide rods are slidably connected to the inner wall of the second connector, and the plurality of slide rods are fixedly connected to each other by a ring. A spring is provided between the slide rod and the interior of the second connector, and the spring is used in conjunction with the locking block.

[0013] In one embodiment, a conical filter screen is fixedly connected to the inner wall of the collecting shell.

[0014] Beneficial effects

[0015] 1. By setting up a flexibly adjustable robotic arm and a collection shell inside the traditional top suction hood, it is possible to capture the welding fume generation point at close range. While the top suction hood absorbs the welding fumes at the workstation, the collection shell accurately absorbs the welding fumes generated by the welding workpiece, thereby reducing the welding fume concentration in the workstation area covered by the top suction hood. This reduces the direct threat of welding fumes to the health of operators and improves the actual safety of the working environment.

[0016] 2. By setting up a disassembly and assembly component between the robotic arm and the collection shell, the operator can quickly replace the collection shell according to the size of the weldment. Different specifications of collection shells can be flexibly switched without the need for any tools, thereby accurately collecting the welding fumes generated by the weldment and further improving the collection efficiency of welding fumes. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the top suction cover of this utility model;

[0020] Figure 3This is a schematic diagram of the overall structure of the collection mechanism of this utility model;

[0021] Figure 4 This is a schematic diagram of the installation of the disassembly and assembly components of this utility model;

[0022] Figure 5 This is an exploded view of the disassembly and assembly components of this utility model;

[0023] Figure 6 This is an exploded view of the positioning block of this utility model.

[0024] Figure label:

[0025] 100. Top suction cover; 200. Ventilation duct; 300. Collection mechanism; 310. Robotic arm; 311. Connecting pipe; 320. Collection shell; 321. Conical filter screen; 330. Assembly / disassembly assembly; 331. First connecting piece; 332. Second connecting piece; 3321. Slide rod; 333. Positioning block; 3331. Locking block; 3332. Spring plate; 334. Positioning groove; 3341. Locking slot. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0027] The following is combined Figure 1 - Figure 6 This invention describes an industrial waste gas collection device.

[0028] In one embodiment, an industrial waste gas collection device includes: a top suction hood 100 and a ventilation pipe 200 disposed above the top suction hood 100;

[0029] The collection mechanism 300 includes a robotic arm 310 disposed inside the top suction cover 100. One end of the robotic arm 310 is mounted on the inner wall of the top suction cover 100, and the other end is provided with a collection shell 320. A disassembly assembly 330 is provided between the collection shell 320 and the robotic arm 310.

[0030] The top of the ventilation pipe 200 of this device is connected to the ventilation system. The ventilation system creates a negative pressure in the ventilation pipe 200, which in turn creates a negative pressure in the area covered by the top suction hood 100. This causes the hot fumes generated during welding to rise naturally under the combined action of thermal lift and suction from the hood, and be captured and sucked into the pipe to prevent pollutants from spreading in the workshop.

[0031] The robotic arm 310 typically consists of a base, a multi-section rigid arm, and a universal joint. Its working principle mainly relies on the springs, gas springs, or gear damping structures within the mechanical joints to provide balancing force to counteract the monitor's own weight. This allows users to easily adjust the position, height, pitch, and rotation angle of the housing 320 in three-dimensional space without tools, and automatically and stably hover at the designated position after being released.

[0032] like Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, the assembly / disassembly component 330 includes a first connector 331 fixedly connected to one end of the robotic arm 310. A connecting pipe 311 is provided on the surface of the first connector 331, and the connecting pipe 311 is connected to the ventilation pipe 200 via an air pump. A second connector 332 is fixedly connected to the end of the top suction cover 100 near the robotic arm 310, and the second connector 332 cooperates with the first connector 331. Multiple positioning blocks 333 are provided on the surface of the second connector 332, and each positioning block 333 is an L-shaped block with an arc. The first connector 331 has a positioning groove 334 corresponding to the positioning block 333 inside, and a slot 3341 is provided inside the first connector 331, with the slot 3341 located inside the positioning groove 334. The positioning block 333 has a sliding connection to a locking block 3331, which is a right-angled trapezoidal block with the same curvature as the positioning block 333. A spring plate 3332 is connected inside the positioning block 333, and a spring is installed between the spring plate 3332 and the inner wall of the positioning block 333. Multiple sliding rods 3321 are slidably connected to the inner wall of the second connecting member 332, and these rods are fixedly connected by rings. A spring is installed between the sliding rods 3321 and the interior of the second connecting member 332, and the spring cooperates with the locking block 3331.

[0033] In this embodiment, the first connector 331 mainly consists of a connecting shell and a connecting ring. The connecting shell is connected to the collecting shell 320, and the connecting ring is mainly used for docking with the second connector 332. The connecting pipe 311 is connected to the connecting shell. During use, the air pump's suction end is connected to the connecting pipe 311, and the exhaust end is connected to the ventilation pipe 200 through a flexible hose. The air pump drives the internal fan blades or piston to rotate or reciprocate at high speed through a motor, continuously drawing in and compressing the air in the collecting shell 320 from the air inlet, and then forcibly expelling it from its air outlet to the ventilation pipe 200. This creates a stable negative pressure area inside the collecting shell 320, allowing external welding fumes to be continuously drawn into the collection system under the pressure difference. When it is necessary to disassemble the collecting shell 320, the ring connecting multiple sliding rods 3321 is pushed directly. The ring simultaneously pushes the sliding rods 3321, causing the sliding rods 3321 to move towards the first connector 331. The internal movement of the locking block 3331 is achieved by having a groove on its inclined surface that engages with the sliding rod 3321. The end of the sliding rod 3321 is hemispherical. When the sliding rod 3321 moves toward the first connecting member 331, it inserts into the locking block 3331 and pushes the locking block 3331 into the positioning groove 334. At this time, the locking block 3331 is no longer restricted by the groove 3341, and the first connecting member 331 can rotate. When the operator rotates the first connecting member 331 counterclockwise, the locking block 3331 is retracted into the positioning groove 334. Then, the ring is released, and the multiple sliding rods 3321 are reset and retracted into the interior of the second connecting member 332 under the action of the spring. Then, the second connecting member 332 is rotated until the positioning block 333 is aligned with the opening of the positioning groove 334, at which point the second connecting member 332 can be separated from the connecting member. The first connecting member 331 and the groove 3341 have through holes for cooperating with the sliding rod 3321 to drive the locking block 3331.The depth of the slot 3341 is slightly deeper than that of the positioning slot 334, and the first connecting member 331 has an opening at the position of the positioning slot 334. The shape of the opening matches that of the positioning block 333, allowing the positioning block 333 to enter the positioning slot 334 through the opening. After the positioning block 333 enters the positioning slot 334, the second connecting member 332 is rotated. The inclined surface of the locking block 3331 is squeezed by the inner wall of the second connecting member 332, causing it to contract inward and squeeze the spring plate 3332 until the locking block 3331 moves to the position of the slot 3341. At this point, the locking block 3331 loses the pressure of the inner wall of the second connecting member 332, and the spring plate 333... 32 is reset under the action of the spring, pushing the locking block 3331 into the locking groove 3341. At the same time, the positioning block 333 moves to the end of the positioning groove 334. At this time, the positioning block 333 is restricted in the positioning groove 334 by the cooperation of the positioning groove 334, the locking block 3331 and the locking groove 3341, and the fixation is completed. When it is necessary to disassemble the two connecting parts, the locking block 3331 is pushed back into the positioning block 333 directly through the slide rod 3321. At this time, the positioning block 333 can move slightly in the positioning groove 334. Then, the slide rod 3321 is reset to completely pull the positioning block 333 out from the opening of the positioning groove 334, and the disassembly is completed.

[0034] It should be noted that this device achieves precise absorption of welding fumes generated by the welding workpiece by installing a collection mechanism 300 inside the top suction hood 100. Since this device is installed inside the top suction hood 100 and the position of the collection shell 320 can be adjusted by the robotic arm 310, the operator can choose a suitable angle to avoid the influence of this mechanism on the welding operation.

[0035] like Figure 1 , Figure 2 and Figure 3 As shown, a conical filter screen 321 is fixedly connected to the inner wall of the collecting shell 320.

[0036] In this embodiment, various particulate impurities may be generated during the welding process. To prevent these impurities from entering the connecting pipe 311 and causing damage to the inside of the connecting pipe 311, a conical filter screen 321 is provided on the inner wall of the collecting shell 320 for filtration.

[0037] Working principle: Before welding, the operator selects a suitable collection shell 320 according to the size of the workpiece and installs it onto the robotic arm 310. During installation, the second connector 332 at one end of the collection shell 320 is aligned with the first connector 331 at one end of the robotic arm 310, and the positioning block 333 is aligned with the positioning groove 334. Then, the positioning block 333 is inserted into the positioning groove 334, and the collection shell 320 is rotated clockwise to insert the positioning block 333 into the positioning groove 334. The locking block 3331 inside the positioning block 333 is then inserted into the corresponding locking groove 3341 to complete the installation. Then, by operating the robotic arm 310, the collection shell 320 is adjusted to a suitable position near the workpiece, and then the air pump is started to weld the workpiece.

[0038] During welding, most of the welding fumes generated by the workpiece are directly absorbed by the collecting shell 320 and then fed into the ventilation pipe 200 through the connecting pipe 311 and the air pump. The welding fumes near the workstation absorbed by the ventilation pipe 200 and the top suction hood 100 are discharged by the fan for collection.

[0039] It should be noted that the top suction cover 100, robotic arm 310, ventilation duct 200 and conical filter 321 mentioned above are all devices with relatively mature existing technology. The specific models can be selected according to actual needs, and will not be elaborated here.

[0040] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An industrial waste gas collection device, characterized in that, include: Top suction hood (100) and ventilation duct (200) disposed above top suction hood (100); A collection mechanism (300) includes a robotic arm (310) disposed inside a top suction cover (100). One end of the robotic arm (310) is mounted on the inner wall of the top suction cover (100), and the other end is provided with a collection shell (320). A disassembly assembly (330) is provided between the collection shell (320) and the robotic arm (310).

2. The industrial waste gas collection device according to claim 1, characterized in that, The disassembly and assembly assembly (330) includes a first connector (331) fixedly connected to one end of the robotic arm (310). The surface of the first connector (331) is provided with a connecting pipe (311), which is connected to the ventilation pipe (200) through an air pump.

3. The industrial waste gas collection device according to claim 2, characterized in that, The top suction cover (100) is fixedly connected to a second connector (332) at one end near the robotic arm (310), and the second connector (332) is used in conjunction with the first connector (331).

4. The industrial waste gas collection device according to claim 3, characterized in that, The surface of the second connector (332) is provided with a plurality of positioning blocks (333), the positioning blocks (333) being "L"-shaped blocks with curvature.

5. The industrial waste gas collection device according to claim 2, characterized in that, The first connector (331) has a positioning groove (334) corresponding to the positioning block (333) inside, and a slot (3341) is provided inside the first connector (331), and the slot (3341) is located inside the positioning groove (334).

6. The industrial waste gas collection device according to claim 5, characterized in that, The positioning block (333) is internally connected to a locking block (3331), which is a right-angled trapezoidal block with the same arc as the positioning block (333). The positioning block (333) is internally connected to a spring plate (3332), and a spring is provided between the spring plate (3332) and the inner wall of the positioning block (333).

7. The industrial waste gas collection device according to claim 4, characterized in that, The inner wall of the second connector (332) is slidably connected with a plurality of slide rods (3321), and the plurality of slide rods (3321) are fixedly connected to each other by a ring. A spring is provided between the slide rod (3321) and the interior of the second connector (332), and the spring is used in conjunction with the locking block (3331).

8. The industrial waste gas collection device according to claim 1, characterized in that, A conical filter screen (321) is fixedly connected to the inner wall of the collecting shell (320).

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