A fume scrubber for use in automated welding

Abstract

The purpose of this invention is to provide a fume purifier for automated welding, relating to the field of separation and purification equipment technology. It includes a base plate, a housing, and a top cover. The housing is fixed to the base plate, and the top cover is mounted on the housing. It also includes a solder removal device comprising a filter box, a partition, a central hood, a waste discharge pipe, a filter cloth, and a pulse solenoid valve. This device effectively removes solid tin generated during the fume purification process, preventing it from adhering to the inside of the fume purifier and causing blockage, thus significantly extending the service life of the fume purifier. The filtration device includes a motor, a fan wheel, a filter bag, an adsorption filter element, and a high-efficiency filter layer, effectively removing harmful substances from the fume and solving the problem of traditional fume purifiers being easily blocked by solder and rosin adhering to the fume.

Description

Technical Field

[0001] This invention relates to the field of separation and purification equipment technology, and in particular to a fume purifier for automated welding. Background Technology

[0002] Welding equipment is frequently used in industrial production. However, welding operations cause solder and rosin to volatilize, which not only has an adverse effect on the health of operators but also causes environmental pollution. Therefore, fume extractors are needed to absorb and purify the fumes generated at the welding sites. Currently, most existing fume extractors use multiple purification filters to filter and purify the fumes. However, during the filtration process, the solder and rosin in the fumes adhere to the inside of the fume extractor, causing blockage and reducing its effectiveness and lifespan.

[0003] For example, CN202411413949.4 proposes an industrial welding fume purifier, which includes a purifier frame, a mixing group, and a capture group. The mixing group performs secondary return air capture and filtration on the outlet of the capture group. Industrial waste gas flows to the mixing group after passing through the capture group and is discharged. The flue gas enters the purifier frame from the flue gas inlet and is then drawn upwards and output, connecting with the mixing group. The mixing group guides the gas downwards to the lower mixing box and introduces air for mixing and dilution. The capture group is fixed inside the purifier frame and filters and traps the passing gas. This invention uses an independent box-type purification unit, which can cover the welding fume treatment needs of large-area industrial production through reasonable arrangement. It also performs partial secondary extraction of the treated gas, which can improve the working environment around the purifier unit itself and has strong flexibility. However, it fails to solve the above-mentioned problems.

[0004] The present invention can prevent the adhesion and accumulation of solid tin inside the fume purifier by means of a tin removal device, thereby preventing blockage and significantly extending the service life of the fume purifier. Summary of the Invention

[0005] Technical problems to be solved To address the shortcomings of existing technologies, this invention provides a fume purifier for automated welding, which solves the problem that traditional fume purifiers are easily clogged by solder and rosin in the fume.

[0006] Technical solution To achieve the above objectives, the present invention provides the following technical solution: a fume purifier for automated welding, comprising a base plate, a housing, and a top cover, wherein the housing is fixed to the base plate, the top cover is mounted on the housing, and a support wheel is provided below the base plate. The device further comprises: a desoldering device located inside the housing for removing solid tin generated during the fume purification process, preventing clogging of the fume purifier, and extending the service life of the fume purifier; and a filter device located inside the housing for filtering the fumes generated during automated welding.

[0007] Furthermore, a control panel is fixed to the front of the outer casing, handles are provided on both sides of the outer casing, buckles are provided at the upper ends of both sides of the outer casing, an air outlet is provided on one side of the outer casing, a first protective net is provided at the air outlet, a power interface is provided at the lower rear end of the outer casing, and a bamboo tube is installed on the top of the cover via a flange seat.

[0008] Furthermore, the desoldering device includes a filter box, a partition, a central hood, a waste discharge pipe, a filter cloth, and a pulse solenoid valve. The filter box is mounted on the top of the base plate by a support spring located below. The central hood is fixed below the top cover and is equipped with a fireproof mesh. The waste discharge pipe is fixed inside the filter box, and its upper end is connected to the lower end of the central hood via the filter cloth. The end of the waste discharge pipe is connected to the outer shell via an elastic connecting ring, thereby ensuring the movement of the filter box while maintaining a seal. The partition is fixed to the upper inner side of the filter box, and the pulse solenoid valve is fixed to the inner side of the outer shell, located below the filter box.

[0009] Furthermore, the support spring is an inverted cone shape with a smaller bottom and a larger top, which makes the filter box prone to vibration.

[0010] Furthermore, the upper outer side of the filter box is connected to the outer shell via a sealing ring. The sealing ring is made of elastic material and has a wave-shaped structure that facilitates contraction and stretching.

[0011] Furthermore, the central hood, waste discharge pipe, and filter cloth form a funnel-shaped structure that is larger at the top and smaller at the bottom.

[0012] Furthermore, the filter cloth is a high-temperature resistant flexible filter material, preferably PTFE-coated polyester.

[0013] Furthermore, the partition fits the structure of the central hood, the waste discharge pipe, and the filter cloth, and comes into contact with the filter cloth.

[0014] Furthermore, the filtration device includes a motor, a fan wheel, a filter bag, an adsorption filter element, and a high-efficiency filter layer. The motor is mounted below the filter box via a mounting plate. The fan wheel is mounted between the mounting plate and the filter box and is fixed to the output shaft of the motor. The filter bag is mounted on a partition plate. The adsorption filter element is mounted in the middle of the filter box. The high-efficiency filter layer is mounted at the bottom of the filter box and is spaced apart from the bottom of the filter box.

[0015] Furthermore, the filter box is provided with an air intake corresponding to the fan wheel and a second protective net, and the mounting plate is provided with an exhaust port.

[0016] Beneficial effects The present invention has the following beneficial effects: (0) By setting up a tin removal device, the present invention can effectively remove solid tin generated during the fume purification process, avoid it from adhering to the inside of the fume purifier and causing blockage, and significantly extend the service life of the fume purifier.

[0017] (0) The filter box, baffle, central cover, waste discharge pipe, filter cloth and pulse solenoid valve in the detin removal device work together to provide an efficient and reliable way to remove solid tin. The filter box is installed on the bottom plate by a specially designed inverted conical support spring. This structure makes the filter box more likely to vibrate, which is beneficial to the separation and discharge of solid tin.

[0018] (3) The design of the filtration device is reasonable and efficient. The motor drives the fan wheel to rotate, which sucks the smoke generated during automated welding into the filter box. The filter bag, adsorption filter element and high efficiency filter layer filter the smoke in sequence, which can effectively remove harmful substances in the smoke.

[0019] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 ; Figure 3 This is a cross-sectional view of the present invention; Figure 4 This is a schematic diagram of the structure of the top cover and the bamboo-joint tube of the present invention; Figure 5 This is a schematic diagram of the tin removal device of the present invention. Figure 1 ; Figure 6 This is a schematic diagram of the tin removal device of the present invention. Figure 2 ; Figure 7 This is a cross-sectional view of the filter box of the tin removal device of the present invention; Figure 8 This is the invention Figure 7 A magnified view of point A; Figure 9 This is a schematic diagram of the housing and pulse solenoid valve of the present invention.

[0021] Reference numerals: Base plate 1; Support wheel 101; Outer shell 2; Control panel 201; Handle 202; Buckle 203; Air outlet 204; First protective net 205; Waste discharge port 206; Elastic connecting ring 207; Pulse solenoid valve 208; Top cover 3; Bamboo tube 301; Filter box 4; Support spring 401; Sealing ring 402; Centralized cover 403; Fireproof net 404; Waste discharge pipe 405; Filter cloth 406; Adsorption filter element 408; High-efficiency filter layer 409; Motor 410; Fan wheel 411; Exhaust port 412; Intake port 413; Second protective net 414; Filter bag 416; Partition plate 417; Mounting plate 418. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Please see Figure 1 — Figure 9 This invention provides a technical solution: a fume purifier for automated welding includes a base plate 1, a shell 2, and a top cover 3. The shell 2 is fixed to the base plate 1, and the top cover 3 is installed on the shell 2. Support wheels 101 are provided below the base plate 1 for supporting and moving the fume purifier. A control panel 201 is fixed to the front of the shell 2, handles 202 are provided on both sides of the shell 2, and buckles 203 are provided at the upper ends of both sides of the shell 2 for connecting and fixing the top cover 3. An air outlet 204 is provided on one side of the shell 2, and a first protective net 205 is provided at the air outlet 204 to prevent foreign objects from entering the fume purifier and ensure safety. A power interface is provided at the lower rear end of the shell 2 for connecting to a power source to ensure the use of the fume purifier. A bamboo tube 301 is installed on the top of the top cover 3 via a flange seat. The fume purifier also includes: a desoldering device located inside the shell 2 to remove solid tin generated during the fume purification process, preventing clogging and extending the service life of the fume purifier; and a filter device located inside the shell 2 to filter the fumes generated during automated welding.

[0024] In a specific embodiment: a silencer is provided at the air outlet 204 to reduce wind noise.

[0025] like Figure 3 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9 As shown, the fume purifier used for automated welding includes a desoldering device, which includes a filter box 4, a partition 417, a central hood 403, a waste discharge pipe 405, a filter cloth 406, and a pulse solenoid valve 208. The filter box 4 is mounted on the base plate 1 via a support spring 401 located below. The support spring 401 is an inverted cone shape, smaller at the bottom and larger at the top, which facilitates vibration of the filter box 4. The upper outer side of the filter box 4 is connected to the outer shell 2 via a sealing ring 402 to ensure a seal. The sealing ring 402 is made of elastic material and has a wave-shaped structure that facilitates contraction and stretching. The central hood 403 is fixed below the upper cover 3 and has a fireproof mesh 404. The waste discharge pipe 405 is fixed inside the filter box 4. The upper end of the waste pipe 405 is connected to the lower end of the collection hood 403 via a filter cloth 406. The collection hood 403, the waste pipe 405, and the filter cloth 406 form a funnel-shaped structure that is larger at the top and smaller at the bottom. The filter cloth 406 is a high-temperature resistant flexible filter material, preferably PTFE-coated polyester, which improves the surface smoothness of the filter cloth 406 and enhances the subsequent tin removal effect. The end of the waste pipe 405 is connected to the outer shell 2 via an elastic connecting ring 207, thereby ensuring the movement of the filter box 4 while sealing it. The partition 417 is fixed to the upper inner side of the filter box 4. The partition 417 fits the structure of the collection hood 403, the waste pipe 405, and the filter cloth 406 and comes into contact with the filter cloth 406. The pulse solenoid valve 208 is fixed to the inner side of the outer shell 2 and is located below the filter box 4.

[0026] In a specific embodiment: During use, the high-temperature fumes from automated welding enter the outer casing 2 through the bamboo-joint tube 301 and are cooled and ignited by the fireproof mesh 404. Then, large particles of debris such as tin and rosin fall onto the filter cloth 406 through the collection hood 403. Some of the large particles are discharged through the waste discharge pipe 405, while some tin and rosin adhere to the filter cloth 406. Then, under the control of the control panel 201, the pulse solenoid valves 208 are displaced and extended, and pulse impacts are applied to the filter box 4, causing the filter box 4 to vibrate and tilt. This causes the waste discharge pipe 405 to be displaced from the collection hood 403, thereby pulling the filter cloth 406 and causing the tin and rosin on the filter cloth 406 to detach, preventing blockage. During the process, the partition 417 rubs against the filter cloth 406, thereby promoting the detachment and shedding of the tin and rosin from the filter cloth 406, thus extending the service life of the fume purifier.

[0027] like Figure 3 , Figure 6 , Figure 7 and Figure 8 As shown, the fume purifier used for automated welding includes a filtration device, which includes a motor 410, a fan wheel 411, a filter bag 416, an adsorption filter element 408, and a high-efficiency filter layer 409. The motor 410 is mounted below the filter box 4 via a mounting plate 418. The fan wheel 411 is mounted between the mounting plate 418 and the filter box 4. The filter box 4 has a corresponding air intake 413 and a second protective net 414. The mounting plate 418 has an exhaust port 412. The fan wheel 411 is fixed to the output shaft of the motor 410. The filter bag 416 is mounted on a partition 417 for filtering large particles. The adsorption filter element 408 is mounted in the middle of the filter box 4 for adsorbing toxic and harmful gases. The high-efficiency filter layer 409 is mounted at the bottom of the filter box 4, with a certain gap between it and the bottom of the filter box 4, for filtering small particles.

[0028] In a specific embodiment: During use, the motor 410 is started by controlling the control panel 201, which drives the fan wheel 411 to rotate, expelling air from the exhaust port 412 and then through the air outlet 204 to the outside. This creates a negative pressure at the intake port 413, causing the high-temperature fumes generated during automated welding to be drawn in through the bamboo tube 301 and initially filtered by the filter cloth 406 before entering the filter box. There, the fumes are gradually filtered through the filter bag 416, the adsorption filter element 408, and the high-efficiency filter layer 409, ensuring the filtration effect and achieving the effect of fume purification.

[0029] Working Principle: When using the automated welding fume purifier of this invention, firstly, the device is moved to the vicinity of the welding station by the support wheels 101 under the base plate 1. The angle of the bamboo tube 301 is adjusted so that its suction end is aligned with the area where welding fumes are generated. After the power is turned on, the device is started through the control panel 201 on the front side of the outer casing 2. The motor 410 is fixed to the bottom of the filter box 4 by the mounting plate 418. Its output shaft drives the fan wheel 411 to rotate. The rotation of the fan wheel 411 creates a negative pressure inside the filter box 4. The high-temperature fumes generated during the welding process are sucked into the collection hood 403 under the upper cover 3 through the bamboo tube 301. The fireproof net 404 inside the collection hood 403 performs preliminary cooling and flame retardant treatment on the high-temperature fumes. Subsequently, large particles of solder, rosin, and other impurities in the fumes fall onto the surface of the filter cloth 406, and some impurities are directly discharged through the waste discharge pipe 405. Impurities adhering to the filter cloth 406 are controlled by the control panel 201 to extend and retract the pulse solenoid valve 208 in a staggered manner, which applies pulse impact to the filter box 4. The filter box 4 vibrates and tilts slightly under the action of the support spring 401, causing the waste discharge pipe 405 and the collection hood 403 to be staggered and pull the filter cloth 406. At the same time, the partition plate 417 rubs against the filter cloth 406, causing the adhering impurities to fall off and preventing the filter cloth 406 from clogging. The smoke that has been preliminarily treated by the filter cloth 406 enters the interior of the filter box 4 and passes through the filter bag 416 to filter the remaining large particles, the adsorption filter element 408 to adsorb toxic and harmful gases, and the high-efficiency filter layer 409 to filter the fine particles. The purified air is driven by the fan wheel 411 to be discharged from the exhaust port 412, and then discharged to the outside through the air outlet 204 on one side of the outer shell 2 (the silencer at the air outlet 204 reduces wind noise).

[0030] Throughout the process, the sealing ring 402 ensures the airtightness between the filter box 4 and the outer shell 2, the elastic connecting ring 207 allows the filter box 4 to move when vibrating, and the handle 202 and buckle 203 facilitate the handling of the equipment and the disassembly and maintenance of the top cover 3, effectively achieving efficient purification of welding fumes and long-term stable operation of the equipment.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A fume extractor for automated welding, comprising a base plate (1), a housing (2), and a top cover (3), characterized in that, The outer shell (2) is fixed to the base plate (1), the upper cover (3) is installed on the outer shell (2), and a support wheel (101) is provided below the base plate (1). The system also includes: The detin removal device located inside the outer casing (2) is used to remove solid tin generated during the fume purification process, prevent the fume purifier from clogging, and extend the service life of the fume purifier. A filter device located inside the housing (2) is used to filter the fumes generated during automated welding.

2. The fume extractor for automated welding as described in claim 1, characterized in that, The front of the outer shell (2) is fixed with a control panel (201), the two sides of the outer shell (2) are provided with handles (202), the upper ends of the two sides of the outer shell (2) are provided with buckles (203), the side of the outer shell (2) is provided with an air outlet (204), the air outlet (204) is provided with a first protective net (205), the lower rear end of the outer shell (2) is provided with a power interface, and the top cover (3) is mounted with a bamboo tube (301) through a flange seat.

3. The fume extractor for automated welding as described in claim 2, characterized in that, The desoldering device includes a filter box (4), a partition (417), a central hood (403), a waste discharge pipe (405), a filter cloth (406), and a pulse solenoid valve (208). The filter box (4) is mounted on the top plate (1) via a support spring (401) located below. The central hood (403) is fixed below the top cover (3). A fireproof mesh (404) is provided on the central hood (403). The waste discharge pipe (405) is fixed to the filter box (417). Inside the filter box (4), the upper end of the waste discharge pipe (405) is connected to the lower end of the central cover (403) through the filter cloth (406), and the end of the waste discharge pipe (405) is connected to the outer shell (2) through the elastic connecting ring (207), so as to ensure the movement of the filter box (4) while sealing. The partition (417) is fixed to the upper end of the inner side of the filter box (4), and the pulse solenoid valve (208) is fixed to the inner side of the outer shell (2) and located below the filter box (4).

4. The fume extractor for automated welding as described in claim 3, characterized in that, The support spring (401) is an inverted cone shape with a smaller bottom and a larger top, which makes the filter box (4) prone to vibration.

5. The fume extractor for automated welding as described in claim 3, characterized in that, The upper outer side of the filter box (4) is connected to the outer shell (2) through a sealing ring (402). The sealing ring (402) is made of elastic material and has a wave-shaped structure that facilitates contraction and stretching.

6. The fume extractor for automated welding as described in claim 3, characterized in that, The central hood (403), waste discharge pipe (405), and filter cloth (406) form a funnel-shaped structure that is larger at the top and smaller at the bottom.

7. The fume extractor for automated welding as described in claim 3, characterized in that, The filter cloth (406) is a high-temperature resistant flexible filter material, preferably PTFE-coated polyester.

8. The fume extractor for automated welding as described in any one of claims 3 or 6, characterized in that, The partition (417) fits the structure of the central cover (403), the waste discharge pipe (405) and the filter cloth (406) and comes into contact with the filter cloth (406).

9. The fume extractor for automated welding as described in claim 1, characterized in that, The filtration device includes a motor (410), a fan wheel (411), a filter bag (416), an adsorption filter element (408), and a high-efficiency filter layer (409). The motor (410) is mounted on the bottom of the filter box (4) via a mounting plate (418). The fan wheel (411) is mounted between the mounting plate (418) and the filter box (4). The fan wheel (411) is fixed on the output shaft of the motor (410). The filter bag (416) is mounted on a partition plate (417). The adsorption filter element (408) is mounted in the middle of the filter box (4). The high-efficiency filter layer (409) is mounted in the lower part of the filter box (4) and is spaced apart from the bottom of the filter box (4).

10. The fume extractor for automated welding as described in claim 9, characterized in that, The filter box (4) is provided with an air intake (413) corresponding to the fan wheel (411) and a second protective net (414). The mounting plate (418) is provided with an exhaust port (412).

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