Smoke collecting device for casting furnace
By designing a smoke collection device for a cast furnace, the problem of direct discharge of smoke from the cast furnace to the working environment is solved by using the semi-sealed environment and the negative pressure of the exhaust mechanism, the problem of smoke from the cast furnace being directly discharged to the working environment, improving the environmental quality and protecting the health of staff.
Patent Information
- Application Number
- CN202421943519.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-12
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-08-12
AI Technical Summary
The gas smoke generated by existing casting furnaces will be discharged directly into the operating environment, reducing environmental quality and affecting the health of staff.
A smoke collecting device for a cast furnace is designed, including a first furnace cover, a second furnace cover and a exhaust duct. The gas smoke generated by the casting furnace is collected and sucked away by the semi-sealed environment formed by the first furnace cover and the second furnace cover and the negative pressure action of the exhaust mechanism.
It effectively avoids smoke direct discharge into the working environment, improves environmental quality, and facilitates subsequent centralized treatment of smoke and dust cleaning.
Smart Images
Figure CN223036909U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of metal melting furnaces, in particular to a smoke collection device for a melting furnace. Background Art
[0002] The melting furnace is an important part of metal casting equipment. Its main function is to melt metal or non-metal raw materials into liquid, and then external equipment casts the metal liquid into a mold. During the metal melting operation, the melting furnace will generate a large amount of gas and smoke. The gas and smoke generated by the existing melting furnace are directly discharged into the working environment, reducing the environmental quality and affecting the health of production workers. Summary of the Invention
[0003] In order to solve the problem that the gas and smoke generated by the existing melting furnace are directly discharged into the working environment, the utility model provides a smoke collection device for a melting furnace. The gas and smoke first float below the first furnace cover. The semi-closed environment formed by the first furnace cover and the second furnace cover makes it difficult for the gas and smoke to disperse elsewhere. Under the action of the air extraction mechanism at the end of the air extraction pipeline, a negative pressure environment is formed between the lower parts of the first furnace cover and the second furnace cover, and the gas and smoke will be collected by the air extraction pipeline, thereby improving the environmental quality and preventing the smoke from directly discharging into the working environment and affecting the health of the staff.
[0004] In order to achieve the above object, the technical solution of the utility model is as follows:
[0005] A smoke collection device for a melting furnace, used to collect the smoke generated when the melting furnace works, includes a first support and a second support. A first furnace cover is slidably connected to the first support, and the first furnace cover is located above the smoke outlet of the melting furnace. The second support is located on one side of the first support, and a second furnace cover is provided on the second support. The second furnace cover is slidably sleeved with the first furnace cover, and the side of the second furnace cover away from the first furnace cover is closed. A suction pipe is connected to the second furnace cover, and the end of the suction pipe is connected to an external air extraction mechanism. A power mechanism is provided on the second support, and the power mechanism drives the first furnace cover to slide on the first support to realize the approach or separation of the first furnace cover relative to the second furnace cover. The sliding of the first furnace cover relative to the first support is to facilitate the subsequent insertion and removal of the melting furnace; an air outlet is provided on the second furnace cover, and a suction pipe is installed on the air outlet.
[0006] Further, the melting furnace is placed in the first support, and a cover plate is fixed to the upper end of the first support, and the smoke outlet of the melting furnace extends out of the cover plate. The upper and lower closed environments formed by the cover plate and the first furnace cover improve the absorption effect of the gas and smoke.
[0007] Further, both the first furnace cover and the second furnace cover are cover bodies with an inverted "U" - shaped longitudinal section.
[0008] Furthermore, sliding grooves are provided on the first support and the second support, and pulleys cooperating with the sliding grooves are installed at the lower end of the first furnace hood. An inverted "T"-shaped through groove is formed in the upper part of the sliding groove. An extension plate is fixed to the lower end of the first furnace hood, a connecting plate is fixed to the lower end of the extension plate, and the end of the connecting plate extends into the through groove and a pulley is installed at its end.
[0009] Furthermore, the power mechanism is a cylinder. The power mechanism can also be an oil cylinder.
[0010] Furthermore, a limiting mechanism is provided on the second furnace hood. The limiting mechanism includes a limiting plate and a limiting rod. The limiting plate is fixed on the second furnace hood, a limiting groove is formed in the limiting plate, one end of the limiting rod is connected to the end of the first furnace hood, and the other end is inserted into the limiting groove. The limiting groove is a "T"-shaped groove, and a plurality of limiting discs that can enter the limiting groove are fixed on the limiting rod.
[0011] Furthermore, a dust collection mechanism is provided on the second support for collecting the dust remaining below the second furnace hood. Part of the gas smoke generated by the melting furnace is drawn away by the exhaust duct, and the other part remains below the second furnace hood to form dust. The dust collection mechanism on the second support is used to collect this part of the dust that cannot be drawn away.
[0012] Furthermore, the dust collection mechanism includes a dust collecting hopper and a collecting box. The upper end of the dust collecting hopper is fixed to the lower end of the second furnace hood, and the lower end of the dust collecting hopper communicates with the collecting box. The collecting box is a drawer-type collecting box, which is convenient for subsequent workers to clean.
[0013] Furthermore, a pneumatic slide valve is provided between the dust collecting hopper and the collecting box. The pneumatic slide valve can control the opening and closing of the pipeline between the dust collecting hopper and the collecting box, and prevent the powder in the collecting box from being sucked out when the exhaust duct is working.
[0014] Furthermore, the first furnace hood is slidably sleeved on the outside of the second furnace hood. An inner eaves that fits the outer side surface of the second furnace hood is fixed to one end of the first furnace hood close to the second furnace hood, and an outer eaves that fits the inner side surface of the first furnace hood is fixed to one end of the second furnace hood close to the first furnace hood. The cooperation between the inner eaves and the outer eaves realizes the close fitting of the first furnace hood and the second furnace hood, ensures the tightness of the internal space of the first furnace hood and the second furnace hood, and the cooperation between the inner eaves and the outer eaves realizes the limit of the movement of the first furnace hood to prevent the first furnace hood from slipping out during movement.
[0015] Through the above technical solutions, the beneficial effects of the present utility model are:
[0016] 1. The utility model forms a semi-closed space through the combination of the first furnace hood, the second furnace hood and the cover plate. The gas and smoke generated by the melting furnace will directly enter the semi-closed space, and then under the action of the air extraction mechanism at the end of the air extraction pipeline, a negative pressure environment is formed at the lower part of the first furnace hood and the second furnace hood, and the gas and smoke will be sucked away by the air extraction pipeline, avoiding the direct discharge of the gas and smoke generated by the melting furnace into the working environment.
[0017] 2. The first furnace hood and the second furnace hood of the utility model are sleeved slidingly. Under the power action of the power mechanism, the first furnace hood can move on the first support, which is convenient for the subsequent putting in and taking out of the melting furnace.
[0018] 3. The utility model is provided with a dust collection mechanism on the second support. Part of the gas and smoke generated by the melting furnace will be sucked away by the air extraction pipeline, and the other part will remain under the second furnace hood to form dust. After the air extraction pipeline stops working, the dust will fall into the collection box through the dust collection hopper, which is more convenient for cleaning; and a pneumatic plug valve is arranged between the dust collection hopper and the collection box to control the opening and closing of the pipeline between the dust collection hopper and the collection box, avoiding the powder in the collection box from being sucked out when the air extraction pipeline is working. Brief Description of the Drawings
[0019] Figure 1 is a schematic structural view of a smoke collection device for a melting furnace of the utility model Figure 1 ;
[0020] Figure 2 is a schematic structural view of a smoke collection device for a melting furnace of the utility model Figure 2 ;
[0021] Figure 3 is a schematic structural view of the limit mechanism of a smoke collection device for a melting furnace of the utility model;
[0022] Figure 4 is an enlarged structural view of the cooperation between the slideway and the pulley of a smoke collection device for a melting furnace of the utility model;
[0023] Figure 5 is a partial structural schematic view of the first furnace hood of a smoke collection device for a melting furnace of the utility model;
[0024] Figure 6 is a partial structural schematic view of the second furnace hood of a smoke collection device for a melting furnace of the utility model;
[0025] Figure 7 is a schematic structural view of the dust collection mechanism of a smoke collection device for a melting furnace of the utility model;
[0026] Figure 8 is a partial structural explosion view of the first furnace hood, the second furnace hood and the slideway of a smoke collection device for a melting furnace of the utility model.
[0027] Reference numerals in the drawings: 1 is a melting furnace, 2 is a first support, 3 is a second support, 4 is a first furnace hood, 5 is a smoke outlet, 6 is a second furnace hood, 7 is an exhaust duct, 8 is a power mechanism, 9 is a cover plate, 10 is a slideway, 11 is a pulley, 12 is a limit plate, 13 is a limit rod, 14 is a limit groove, 15 is a dust collecting hopper, 16 is a collection box, 17 is a pneumatic flap valve, 18 is an extension plate, 19 is a limit disc, 20 is an inner eaves, 21 is an outer eaves, 22 is an air outlet. Specific embodiments
[0028] The present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments:
[0029] As Figures 1 to 8 shown, this embodiment provides a smoke collection device for a melting furnace, which is used to collect the smoke generated when the melting furnace 1 works, and includes a first support 2 and a second support 3. A first furnace hood 4 is slidably connected to the first support 2, and the first furnace hood 4 is located above the smoke outlet 5 of the melting furnace 1.
[0030] In this embodiment, as Figure 1 shown, a cover plate 9 is fixed to the upper end of the first support 2, and the smoke outlet 5 of the melting furnace 1 extends out of the cover plate 9. The combination of the first furnace hood 4 and the cover plate 9 forms a semi-closed space, making it difficult for the gas smoke to disperse elsewhere and easier to collect. In other embodiments, the melting furnace 1 may not be placed inside the first support 2, and it is only necessary to make the first furnace hood 4 located above the smoke outlet 5 of the melting furnace 1.
[0031] The second support 3 is located on one side of the first support 2. A second furnace hood 6 is provided on the second support 3. The second furnace hood 6 is slidably sleeved with the first furnace hood 4, and the side of the second furnace hood 6 away from the first furnace hood 4 is closed.
[0032] Specifically, in this embodiment, both the first furnace hood 4 and the second furnace hood 6 are hoods with an inverted "U" - shaped longitudinal section. The first furnace hood 4 is slidably sleeved outside the second furnace hood 6. An inner eaves 20 that fits the outer side surface of the second furnace hood 6 is fixed to one end of the first furnace hood 4 close to the second furnace hood 6, and an outer eaves 21 that fits the inner side surface of the first furnace hood 4 is fixed to one end of the second furnace hood 6 close to the first furnace hood 4. The cooperation of the inner eaves 20 and the outer eaves 21 realizes the close fitting of the first furnace hood 4 and the second furnace hood 6, ensures the tightness of the internal space of the first furnace hood 4 and the second furnace hood 6, and the first furnace hood 4 and the second furnace hood 6 realize the limit of the movement of the first furnace hood 4 when it moves, preventing the first furnace hood 4 from disengaging from the second furnace hood 6 when it moves.
[0033] An exhaust duct 7 is connected to the second furnace hood 6, and the end of the exhaust duct 7 is connected to an external exhaust mechanism; when the exhaust mechanism is working, a negative pressure environment is formed between the first furnace hood 4 and the lower part of the second furnace hood 6, and then the gas and smoke are concentrated by the exhaust duct 7 and wait for subsequent centralized treatment.
[0034] A first furnace hood 4 is slidably connected to the first support 2, and a power mechanism 8 is provided on the second support 3. The power mechanism 8 drives the first furnace hood 4 to slide on the first support 2, so as to realize the approach or separation of the first furnace hood 4 relative to the second furnace hood 6. In this embodiment, the power mechanism 8 is a cylinder. In other embodiments, the power mechanism 8 can also be an oil cylinder or other telescopic mechanisms.
[0035] In this embodiment, as Figure 1 shown in Figure 4 figures, slideways 10 are provided on the first support 2 and the second support 3, and pulleys 11 cooperating with the slideways 10 are installed at the lower end of the first furnace hood 4. An inverted "T"-shaped through groove is formed in the upper part of the slideway 10. An extension plate 18 is fixed at the lower end of the first furnace hood 4, a connecting plate is fixed at the lower end of the extension plate 18, and the end of the connecting plate extends into the through groove and a pulley 11 is installed at its end, so as to realize the sliding of the first furnace hood 4 on the first support 2 driven by the power mechanism.
[0036] In this embodiment, as can be seen from the foregoing, the first furnace hood 4 is slidably sleeved on the outside of the second furnace hood 6. As Figure 8 shown in
[0037] figures, the front part of the slideway 10 is located at the lower end of the first furnace hood 4, the rear part of the slideway 10 is located on the outside of the second furnace hood 6 and abuts against the outer eaves 21 of the second furnace hood 6, ensuring that the first furnace hood 4 can slide on the slideway 10 while fitting against the second furnace hood 6.
[0038] In this embodiment, as Figure 2 shown in Figure 3 figures, the limiting groove 14 is a "T"-shaped groove, a plurality of limiting discs 19 that can enter the limiting groove 14 are fixed on the limiting rod 13, the limiting rod 13 does not contact the upper and lower inner side walls of the limiting groove 14, and the limiting discs 19 contact the upper and lower inner side walls of the limiting groove 14.
[0039] As an implementable manner, limiting mechanisms are provided on both sides of the second furnace hood 6. The limiting mechanisms include limiting plates 12 and limiting rods 13. The limiting plates 12 are fixed on the second furnace hood 6, limiting grooves 14 are formed in the limiting plates 12, one end of the limiting rod 13 is connected to the end of the first furnace hood 4, and the other end is inserted into the limiting groove 14.
[0040] Specifically, asFigure 7 As shown, the dust collection mechanism includes a dust collecting hopper 15 and a collection box 16. The upper end of the dust collecting hopper 15 is fixed to the lower end of the second furnace hood 6, and the lower end of the dust collecting hopper 15 is communicated with the collection box 16; a pneumatic slide valve 17 is provided between the dust collecting hopper 15 and the collection box 16. The pneumatic slide valve 17 can control the opening and closing of the pipeline between the dust collecting hopper 15 and the collection box 16, avoiding the powder in the collection box 16 from being sucked out when the exhaust duct 7 is working.
[0041] When a large amount of smoke is generated during the operation of the melting furnace 1 and needs to be collected, first, the second furnace hood 6 is moved above the smoke outlet 5 of the melting furnace 1 through a cylinder. At this time, the external exhaust mechanism connected to the end of the exhaust duct 7 is turned on, so that a negative pressure environment is formed between the first furnace hood 4 and the lower part of the second furnace hood 5, and the gas smoke will be sucked away by the exhaust duct 7 for subsequent centralized discharge; another part of the smoke that cannot be sucked away will remain as dust under the second furnace hood 6. After the melting furnace 1 and the exhaust mechanism stop working, the pneumatic slide valve 17 is opened, and the dust falls into the collection box 16 through the dust collecting hopper 15, waiting for subsequent cleaning by the staff.
[0042] The above embodiments are only the preferred embodiments of the present invention, and do not limit the scope of implementation of the present invention. Therefore, any equivalent changes or modifications made according to the structure, features, and principles described in the scope of the present invention patent shall be included in the scope of the patent application of the present invention.
Claims
1. A fume collecting device for a melting furnace, used for collecting fume generated when the melting furnace (1) is in operation, comprising a first bracket (2) and a second bracket (3), characterized in that: A first furnace cover (4) is slidably connected to the first bracket (2), the first furnace cover (4) is located above the smoke outlet (5) of the melting furnace (1), the second bracket (3) is located on one side of the first bracket (2), a second furnace cover (6) is provided on the second bracket (3), the second furnace cover (6) is slidably sleeved with the first furnace cover (4), and the second furnace cover (6) is closed and arranged on a side away from the first furnace cover (4); The second furnace cover (6) is connected to an exhaust duct (7), and an end of the exhaust duct (7) is connected to an external exhaust mechanism; The second bracket (3) is provided with a power mechanism (8), which drives the first furnace cover (4) to slide on the first bracket (2) to achieve the first furnace cover (4) approaching or moving away from the second furnace cover (6).
2. A fume collecting device for a melting furnace according to claim 1, characterized in that: The melting and casting furnace (1) is arranged in a first bracket (2); a cover plate (9) is fixed to the upper end of the first bracket (2); and a smoke outlet (5) of the melting and casting furnace (1) extends out of the cover plate (9).
3. The fume collecting device for a melting furnace according to claim 1, characterized in that: The first furnace hood (4) and the second furnace hood (6) are both hood bodies with an inverted "U" shape in longitudinal section.
4. The fume collecting device for a melting furnace according to claim 1, characterized in that: The first bracket (2) and the second bracket (3) are provided with slideways (10), and a pulley (11) cooperating with the slideways (10) is installed at the lower end of the first furnace cover (4).
5. The fume collecting device for a melting furnace according to claim 1, characterized in that: The power mechanism (8) is a cylinder.
6. The fume collecting device for a melting furnace according to claim 1, characterized in that: The second furnace cover (6) is provided with a limiting mechanism, the limiting mechanism comprising a limiting plate (12) and a limiting rod (13), the limiting plate (12) being fixed on the second furnace cover (6), a limiting groove (14) being provided in the limiting plate (12), one end of the limiting rod (13) being connected to the end of the first furnace cover (4), and the other end being passed through the limiting groove (14).
7. A fume collecting device for a melting furnace according to any one of claims 1 to 6, characterized in that: The second bracket (3) is provided with a dust collection mechanism for collecting dust remaining under the second furnace hood (6).
8. The fume collecting device for a melting furnace according to claim 7, characterized in that: The dust collection mechanism comprises a dust collecting hopper (15) and a collecting box (16); the upper end of the dust collecting hopper (15) is fixed to the lower end of the second furnace hood (6), and the lower end of the dust collecting hopper (15) is connected to the collecting box (16).
9. A fume collecting device for a melting furnace according to claim 8, characterized in that: A pneumatic gate valve (17) is provided between the dust collecting hopper (15) and the collecting box (16).
10. The fume collecting device for a melting furnace according to claim 1, characterized in that: The first furnace cover (4) is slidably sleeved on the outer side of the second furnace cover (6); an inner edge (20) that fits the outer side of the second furnace cover (6) is fixed to one end of the first furnace cover (4) close to the second furnace cover (6); and an outer edge (21) that fits the inner side of the first furnace cover (4) is fixed to one end of the second furnace cover (6) close to the first furnace cover (4).