Harmful gas collecting device for metal cutting
By designing a multi-level filtration system and a gas detection and reflux mechanism, the problems of poor filtration and insufficient detection in existing metal cutting devices have been solved, achieving efficient purification and environmentally friendly emission of harmful gases.
Patent Information
- Application Number
- CN202423277594.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2034-12-30
AI Technical Summary
Existing metal cutting hazard gas collection devices have simple structures, poor filtration effects, and lack real-time detection and feedback mechanisms, resulting in emissions that cannot meet standards, polluting the environment and endangering health.
Design a multi-level filtration system, including a collection pipe, a filter pipe, a first filter box, a second filter box, and a third filter box. Combined with gas detection equipment and a reflux mechanism, the gas is processed sequentially through multiple filter boxes, and finally tested to ensure that the gas meets the standards before being discharged or reprocessed.
It achieves multi-level and in-depth purification of harmful gases, improves purification effect and quality, reduces emissions of incompletely treated gases, and ensures that emitted gases meet environmental protection standards.
Smart Images
Figure CN223832070U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a harmful gas collection device, and more particularly to a harmful gas collection device for metal cutting, belonging to the field of metal cutting technology. Background Technology
[0002] The metal cutting process generates various harmful gases, such as carbon monoxide, nitrogen oxides, and sulfur dioxide. If these gases are directly released into the environment, they will severely pollute air quality and pose a significant threat to human health.
[0003] Currently, the metal cutting industry faces many challenges in the treatment of harmful gases. Existing collection and treatment devices often have simple structures, poor filtration effects, and are unable to verify whether the treated gas meets the standards. They also lack real-time and accurate detection and feedback mechanisms, which cannot guarantee the stability of the quality of the emitted gas, resulting in the emitted gas still failing to meet environmental protection standards.
[0004] Therefore, there is an urgent need to improve the harmful gas collection device for metal cutting in order to solve the above-mentioned problems. Utility Model Content
[0005] The purpose of this invention is to provide a harmful gas collection device for metal cutting. When the induced draft fan is started, the harmful gas generated by metal cutting is introduced into the first filter box after preliminary filtration through the collection pipe and filter pipe. After preliminary treatment, the gas flows from the top into the second filter box through pipe one, and then from the bottom into the third filter box through pipe two for fine treatment. The gas detection equipment detects the treated gas. If it meets the standard, it is discharged from the exhaust pipe. If it does not meet the standard, it is sent back to the first filter box for reprocessing through pipe three. This design of passing through multiple filter boxes and detection and return can purify the gas in a multi-level manner, improve the effect and quality, and reduce the emission of incompletely treated gas.
[0006] To achieve the above objectives, the main technical solutions adopted by this utility model include:
[0007] A hazardous gas collection device for metal cutting includes a collection pipe, a filter pipe fixedly connected to one side of the collection pipe, an induced draft fan fixedly connected to one side of the filter pipe, a first filter box fixedly connected to the other side of the induced draft fan, a second filter box located on one side of the first filter box, a first pipe connecting the first and second filter boxes, with both ends of the first pipe extending into the upper interior of the first and second filter boxes respectively, a third filter box located on one side of the second filter box, a second pipe connecting the third filter box and the second filter box, with both ends of the second pipe extending into the lower interior of the second and third filter boxes respectively, an exhaust pipe fixedly connected to the upper end of the third filter box, and a gas detection device fixedly connected to the interior of the third filter box near the exhaust pipe, and a third pipe fixedly connected to the interior of the upper end of the third filter box, with the other end of the third pipe extending into the interior of the upper end of the first filter box.
[0008] Preferably, one side of the collecting tube is assumed to have multiple collecting holes, and the inner bottom surface of the collecting tube is set as a curved surface.
[0009] Preferably, a filter screen is slidably connected to the side of the filter tube away from the induced draft fan, and a discharge hole is provided on the side of the filter box near the filter screen. A collection trough is provided below the discharge hole, and the collection trough is slidably connected to the filter tube.
[0010] Preferably, the first filter box contains an adsorption liquid, the output end of the blower is fixedly connected to an air outlet pipe, and the other end of the air outlet pipe extends into the adsorption liquid.
[0011] Preferably, the second filter box has multiple layers of molecular sieves fixedly connected inside.
[0012] Preferably, an ion exchange resin is fixedly connected inside the third filter box, and one end of the second pipe extending into the third filter box is located outside the ion exchange resin. A sealing plate is fixedly connected to the upper surface of the ion exchange resin. The sealing plate is fixedly connected to the third filter box, and a vent hole is provided on the sealing plate, which corresponds to the exhaust pipe.
[0013] Preferably, an exhaust fan is fixedly connected to the upper end of the exhaust pipe, and a solenoid valve is connected to the side of the exhaust pipe near the third filter box.
[0014] Preferably, a solenoid valve is fixedly connected to the outer wall of the third pipe.
[0015] This utility model has at least the following beneficial effects:
[0016] 1. The induced draft fan generates suction, drawing in harmful gases produced during metal cutting through the collection pipe. After initial filtration of large particles through the filter pipe, the gas is introduced into the first filter box. After preliminary treatment in the first filter box, the gas flows from the top into the second filter box through pipe one. The gas treated in the second filter box then enters the third filter box from the bottom through pipe two. The third filter box performs final fine treatment on the gas. The treated gas reaches near the exhaust pipe, where gas detection equipment measures its composition and quality. If the gas meets the standards, it is discharged from the exhaust pipe; if not, it is returned to the first filter box for reprocessing through pipe three. This design, with its sequential passage through multiple filter boxes and the inclusion of gas detection and recirculation mechanisms, enables multi-level, progressively deeper purification of harmful gases, improving the effectiveness and quality of gas purification and minimizing the emission of incompletely treated harmful gases into the environment.
[0017] 2. The filter screen continuously filters impurities in the filter tube. When the impurities accumulate to a certain extent and affect the filtration effect, the filter screen can be removed by sliding to replace or clean it. At the same time, the positions of the discharge hole and the collection tank are matched so that the impurities falling from the discharge hole can accurately fall into the collection tank, ensuring the continuous and effective filtration of the filter tube, and also facilitating the unified treatment of impurities. Attached Figure Description
[0018] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:
[0019] Figure 1 This is a schematic diagram of the isometric structure provided by this utility model;
[0020] Figure 2 Cross-sectional view of some components provided by this utility model Figure 1 ;
[0021] Figure 3 Provided by this utility model Figure 2 A magnified schematic diagram of the structure at point A in the middle;
[0022] Figure 4 Cross-sectional view of some components provided by this utility model Figure 2 .
[0023] In the diagram, 1. Collection pipe; 2. Filter pipe; 3. Exhaust fan; 4. First filter box; 5. Second filter box; 6. Pipeline 1; 7. Third filter box; 8. Pipeline 2; 9. Exhaust pipe; 10. Gas detection equipment; 11. Pipeline 3; 21. Collection hole; 31. Filter screen; 32. Discharge hole; 33. Collection tank; 41. Adsorbent liquid; 42. Air outlet pipe; 51. Molecular sieve; 61. Ion exchange resin; 62. Sealing plate; 63. Vent hole; 71. Exhaust fan; 72. Solenoid valve 1; 81. Solenoid valve 2. Detailed Implementation
[0024] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.
[0025] like Figure 1 - Figure 4As shown, the harmful gas collection device for metal cutting provided in this embodiment includes a collection pipe 1. The collection pipe 1 is used to directly collect the harmful gases generated during metal cutting and serves as the gas inlet for the entire device. The collection pipe 1 has a U-shaped shape, which can improve the collection efficiency. A filter pipe 2 is fixedly connected to one side of the collection pipe 1. The filter pipe 2 initially filters out larger particles and impurities, performing preliminary treatment on the incoming harmful gases. An exhaust fan 3 is fixedly connected to one side of the filter pipe 2. The exhaust fan 3 provides power to generate negative pressure, drawing the harmful gases from the collection pipe 1 and pushing the gases sequentially through subsequent filter components. On the other side of the machine 3, a first filter box 4 is fixedly connected. The first filter box 4 performs preliminary chemical treatment on the harmful gases, removing some harmful substances. A second filter box 5 is provided on one side of the first filter box 4. The second filter box 5 uses a different treatment method and materials than the first filter box 4 to purify the gas more thoroughly. A pipe 6 is provided between the first filter box 4 and the second filter box 5. The two ends of the pipe 6 extend into the upper interior of the first filter box 4 and the second filter box 5, respectively. The pipe 6 connects the first filter box 4 and the second filter box 5, allowing the gas treated by the first filter box 4 to enter... The second filter box 5 performs further processing. A third filter box 7 is located on one side of the second filter box 5, performing final fine processing to ensure the discharged gas meets emission standards. A second pipe 8 connects the third filter box 7 and the second filter box 5, with both ends extending into the lower ends of the second filter box 5 and the third filter box 7, respectively. Because the second pipe 8 connects to the lower ends of both filter boxes, gas enters the third filter box 7 from the bottom of the second filter box 5. This design utilizes the characteristics of gas flow to enhance the filtration effect. A discharge valve is fixedly connected to the upper end of the third filter box 7. The exhaust pipe 9 discharges treated gas that meets the standards. A gas detection device 10 is fixedly connected to the interior of the third filter box 7 near the exhaust pipe 9. The gas detection device 10 monitors the composition and quality of the gas to be discharged from the third filter box 7 in real time to ensure that it meets the standards. A pipe 11 is fixedly connected to the upper end of the third filter box 7. The other end of the pipe 11 extends to the upper end of the first filter box 4. The pipe 11 is used to send the gas back to the first filter box 4 for reprocessing if the gas is detected as substandard, forming a cycle to ensure that the finally discharged gas is qualified.
[0026] Among them, such as Figure 1 - Figure 4As shown, the collecting pipe 1 has multiple collecting holes 21 on one side, which increases the inlet for collecting harmful gases, expands the collection range, and enables faster and more comprehensive intake of harmful gases generated by metal cutting, thus improving collection efficiency. The inner bottom surface of the collecting pipe 1 is curved, so heavier particles in the gas fall into the collecting pipe 1 and are collected by the curved surface of the inner bottom surface of the collecting pipe 1. The filter pipe 2 is slidably connected to a filter screen 31 on the side away from the blower 3. The filter screen 31 is used to further filter larger particles and impurities in the harmful gases, playing a preliminary purification role. The filter box is provided with a discharge hole 32 on the side near the filter screen 31. The discharge hole 32 can discharge particles that fall into the collecting pipe 1 and the filter pipe 2. A collecting trough 33 is provided below the discharge hole 32. The collecting trough 33 is slidably connected to the filter pipe 2. The collecting trough 33 catches the impurities discharged from the discharge hole 32 and collects the impurities in a concentrated manner for convenient subsequent processing.
[0027] Among them, such as Figure 1 - Figure 4 As shown, the first filter box 4 contains an adsorption liquid 41, which is used to adsorb certain soluble components in harmful gases, chemically treating the harmful gases and reducing their harmful substance content. The output end of the blower 3 is fixedly connected to an air outlet pipe 42, the other end of which extends into the adsorption liquid 41. The air outlet pipe 42 transports the harmful gases introduced by the blower 3 into the adsorption liquid 41, so that the harmful gases and the adsorption liquid 41 are in full contact, thereby improving the adsorption effect. The second filter box 5 is fixedly connected to a multi-layer molecular sieve 51, which has the characteristic of selective adsorption and can adsorb harmful gas components of specific molecular size and chemical properties, further purifying the gas after it has been treated by the first filter box 4.
[0028] Among them, such as Figure 1 - Figure 4As shown, an ion exchange resin 61 is fixedly connected inside the third filter box 7. The ion exchange resin 61 can adsorb and remove specific ions or charged particles in harmful gases through ion exchange, performing final fine treatment on the gas and further improving the purification level of the gas. One end of the pipe 2 8 extending to the third filter box 7 is located outside the ion exchange resin 61. The extension of the pipe 2 8 to the outside of the ion exchange resin 61 ensures that the gas first passes through other spaces inside the third filter box 7 for preliminary treatment or buffering, and then passes through the ion exchange resin 61 for deep treatment. A sealing plate 62 is fixedly connected to the upper surface of the ion exchange resin 61. The sealing plate 62 is fixedly connected to the third filter box 7. The sealing plate 62 prevents the gas from bypassing the ion exchange resin 61 directly without treatment, ensuring that all gas can be treated by the ion exchange resin 61. A vent 63 is opened on the sealing plate 62, which corresponds to the exhaust pipe 9. The qualified gas after being treated by the ion exchange resin 61 enters the exhaust pipe 9 through the vent 63 and is discharged.
[0029] Furthermore, such as Figure 1 - Figure 4 As shown, an exhaust fan 71 is fixedly connected to the upper end of the exhaust pipe 9. The exhaust fan 71 enhances the gas discharge power in the exhaust pipe 9, accelerates the discharge speed of the purified gas, and ensures that the filtered gas can be discharged from the system quickly and effectively. A solenoid valve 72 is connected to the side of the exhaust pipe 9 near the third filter box 7. The solenoid valve 72 can control the opening and closing of the exhaust pipe 9. When the gas detection device 10 detects that the gas does not meet the standard, the solenoid valve 72 closes to prevent the gas from being discharged. When the gas meets the standard, the solenoid valve 72 opens to allow the gas to be discharged. A solenoid valve 81 is fixedly connected to the outer wall of the pipe 3 11. The solenoid valve 81 is used to control the opening and closing of the pipe 3 11. When the gas detection device 10 in the third filter box 7 detects that the gas does not meet the standard, the solenoid valve 81 opens to allow the gas to flow back to the first filter box 4 through the pipe 3 11 for reprocessing. When the gas detection device 10 detects that the gas meets the standard, the solenoid valve 81 closes to prevent the gas from flowing back.
[0030] like Figure 1 - Figure 4As shown, the principle of the harmful gas collection device for metal cutting provided in this embodiment is as follows: The induced draft fan 3 and exhaust fan 71 are started. The induced draft fan 3 generates suction, drawing in the harmful gases generated during metal cutting through multiple collection holes 21 on one side of the collection pipe 1. The gas first passes through the filter screen 31 in the filter pipe 2. When the filter screen 31 accumulates a certain amount of impurities, the filter screen 31 is slidable to replace or clean it. The gas, after preliminary filtration, enters the adsorption liquid 41 in the first filter box 4 through the exhaust pipe 42 under the action of the induced draft fan 3. The treated gas flows from the upper end of the first filter box 4 into the second filter box 5 through pipe 6. The multi-layer molecular sieve 51 further selectively adsorbs and purifies the gas. Then, the gas enters the third filter box 7 from the lower end of the second filter box 5 through pipe 8. The gas is buffered, then deeply purified by ion exchange resin 61, and finally flows through the vent 63 on the sealing plate 62 to the upper end of the third filter box 7. The gas is detected by the gas detection device 10. If the gas meets the standard, the solenoid valve 72 on the exhaust pipe 9 opens and the solenoid valve 81 on the pipe 11 closes. The gas is discharged through the exhaust pipe 9 under the action of the exhaust fan 71. If the gas does not meet the standard, the solenoid valve 72 closes and the solenoid valve 81 opens. The gas flows back to the first filter box 4 through the pipe 11 for reprocessing.
[0031] If certain terms are used in the specification and claims to refer to specific components, those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" as used throughout the specification and claims is an open-ended term and should be interpreted as "comprising but not limited to." "Approximately" means that within an acceptable margin of error, those skilled in the art can solve the technical problem and substantially achieve the technical effect within a certain margin of error.
[0032] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the product or system that includes that element.
[0033] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.
Claims
1. A hazardous gas collection device for metal cutting, comprising a collection pipe (1), characterized in that: A filter pipe (2) is fixedly connected to one side of the collection pipe (1), and an induced draft fan (3) is fixedly connected to one side of the filter pipe (2). A first filter box (4) is fixedly connected to the other side of the induced draft fan (3). A second filter box (5) is provided on one side of the first filter box (4). A pipe (6) is provided between the first filter box (4) and the second filter box (5). The two ends of the pipe (6) extend to the upper interior of the first filter box (4) and the second filter box (5), respectively. A third filter box (7) is provided on one side of the second filter box (5). A second pipe (8) is provided between the third filter box (7) and the second filter box (5). The two ends of the second pipe (8) extend to the lower end of the second filter box (5) and the third filter box (7), respectively. An exhaust pipe (9) is fixedly connected to the upper end of the third filter box (7), and a gas detection device (10) is fixedly connected to the interior of the third filter box (7) near the exhaust pipe (9). A third pipe (11) is fixedly connected to the interior of the upper end of the third filter box (7), and the other end of the third pipe (11) extends to the upper end of the first filter box (4).
2. The harmful gas collection device for metal cutting according to claim 1, characterized in that: It is assumed that there are multiple collection holes (21) on one side of the collection tube (1), and the inner bottom surface of the collection tube (1) is set as a curved surface.
3. The harmful gas collection device for metal cutting according to claim 1, characterized in that: A filter screen (31) is slidably connected to the side of the filter tube (2) away from the blower (3). A discharge hole (32) is provided on the side of the filter box close to the filter screen (31). A collection trough (33) is provided below the discharge hole (32). The collection trough (33) is slidably connected to the filter tube (2).
4. The harmful gas collection device for metal cutting according to claim 1, characterized in that: The first filter box (4) contains an adsorption liquid (41), and the output end of the blower (3) is fixedly connected to an air outlet pipe (42), the other end of which extends into the adsorption liquid (41).
5. A harmful gas collection device for metal cutting according to claim 1, characterized in that: The second filter box (5) has multiple molecular sieves (51) fixedly connected inside.
6. A harmful gas collection device for metal cutting according to claim 1, characterized in that: The third filter box (7) is fixedly connected to an ion exchange resin (61). One end of the second pipe (8) extends to the third filter box (7) and is located outside the ion exchange resin (61). A sealing plate (62) is fixedly connected to the upper surface of the ion exchange resin (61). The sealing plate (62) is fixedly connected to the third filter box (7). A vent hole (63) is provided on the sealing plate (62). The vent hole (63) corresponds to the exhaust pipe (9).
7. A harmful gas collection device for metal cutting according to claim 1, characterized in that: An exhaust fan (71) is fixedly connected to the upper end of the exhaust pipe (9), and a solenoid valve (72) is connected to the side of the exhaust pipe (9) near the third filter box (7).
8. A harmful gas collection device for metal cutting according to claim 1, characterized in that: The outer wall of the pipe three (11) is fixedly connected to the solenoid valve two (81).