Dedusting mechanism of medium-frequency smelting furnace
By introducing components such as dust collectors, shields, electrostatic generators and thermal insulation chambers into the medium frequency smelting furnace, the problem of dust being difficult to absorb when the dust collector is opened is solved, and the effect of efficient dust removal and thermal energy reuse is achieved.
Patent Information
- Application Number
- CN202421934109.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-12
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-08-12
AI Technical Summary
The existing medium-frequency smelting furnace dust removal mechanism needs to open the dust removal cover when adding materials, which makes the dust difficult to absorb, poor dust removal effect, and the heat energy cannot be effectively utilized, resulting in waste.
A medium-frequency smelting furnace dust removal mechanism is designed, including dust collecting cover, shield, vacuum cleaner, electrostatic generator and thermal insulation chamber. By electrostatic separation of dust and recycling heat energy, efficient dust removal and thermal energy reuse are achieved.
It improves the dust removal effect of the medium-frequency furnace, and can continue to absorb dust when the dust collector is opened, and heat energy is recovered through the insulation chamber to reduce energy waste.
Smart Images
Figure CN223154032U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of dust removal of smelting furnaces, in particular to a dust removal mechanism for an intermediate frequency smelting furnace. Background Technique
[0002] An intermediate frequency furnace is a power supply device that converts 50HZ alternating current of industrial frequency into intermediate frequency (above 300HZ to 1000HZ). It rectifies three-phase industrial frequency alternating current into direct current, and then converts the direct current into adjustable intermediate frequency current, which is supplied to the intermediate frequency alternating current flowing through the capacitor and the induction coil. High-density magnetic lines of force are generated in the induction coil, which cut the metal material placed in the induction coil, and large eddy currents are generated in the metal material.
[0003] In the intermediate frequency smelting furnace dust removal mechanism disclosed in the Chinese Utility Model Patent Application Publication Specification CN208091243U, although the intermediate frequency smelting furnace dust removal mechanism of this utility model can not only make the dust removal cover smaller for easy layout, but also reduce the leakage of flue gas and heat, reducing the harm to the operator and having good practicability. However, when this utility model is used, only a dust removal pipe is set, lacking the expression of the internal structure of the dust removal pipe. The dust removal cover is set as a deflectable structure, but when adding materials to the inside of the intermediate frequency furnace, it needs to be opened, and after opening, the dust removal cover is placed aside, and the dust generated at this time is difficult to be absorbed, resulting in poor dust removal effect. Moreover, when this utility model is used, the hot air discharged from the intermediate frequency furnace is directly discharged, which is not convenient for recycling heat energy and causes high waste of heat energy. Therefore, there is an urgent need for an intermediate frequency smelting furnace dust removal mechanism. Content of the Utility Model
[0004] (I) Technical Problems to be Solved
[0005] Aiming at the deficiencies of the prior art, the utility model provides an intermediate frequency smelting furnace dust removal mechanism, which solves the problems put forward in the above background technique.
[0006] (II) Technical Solutions
[0007] To achieve the above purposes, the utility model is realized through the following technical solutions:
[0008] An intermediate frequency smelting furnace dust removal mechanism is applied to an intermediate frequency furnace body. The inner side wall of the intermediate frequency furnace body is fixedly connected with a heating cavity, and the inner side wall of the intermediate frequency furnace body is fixedly connected with an induction coil. The outer surface of the intermediate frequency furnace body is fixedly connected with a dust removal box. The upper surface of the dust removal box is fixedly connected with a limiting cylinder. Inside the limiting cylinder on the upper surface of the dust removal box, there is a fixedly connected electric lifting rod. One end of the telescopic rod of the electric lifting rod is fixedly connected with a movable plate. The outer surface of the limiting cylinder is provided with a first limiting groove and a second limiting groove. The upper surface of the movable plate is fixedly connected with a support column. The upper end of the support column is fixedly connected with a dust removal cover through a connecting frame. The lower surface of the dust removal cover is fixedly connected with a shielding plate. The upper side of the inner side wall of the intermediate frequency furnace body is provided with a dust suction port. The upper surface of the dust removal box is fixedly connected with an air extraction pump. The input end of the air extraction pump is fixedly connected with a pipeline. The upper end of the pipeline is plugged with a first connecting pipe. The inner side wall of the dust removal box is fixedly connected with a first baffle and a second baffle. The outer surface of the dust removal box is fixedly connected with an electrostatic generator. The inner side wall of the dust removal box is fixedly connected with a connecting plate. The lower surface of the connecting plate is fixedly connected with an electrostatic net. The lower end of the electrostatic net is fixedly connected with a counterweight ball. The inner side wall of the dust removal box is slidably connected with a dust storage box. The inner side wall of the intermediate frequency furnace body outside the induction coil is provided with a heat preservation cavity.
[0009] Optionally, the outer surface of the movable plate is fixedly connected with a limiting post. The upper end of the first limiting groove communicates with one end of the second limiting groove. The outer surface of the limiting post is slidably connected with the inner side wall of the first limiting groove.
[0010] Optionally, the outer surface of the shielding plate is slidably connected with the inner side wall of the intermediate frequency furnace body, and the outer surface of the shielding plate is provided with an air inlet.
[0011] Optionally, the outer surface of the middle part of the pipeline is fixedly connected with and communicates with the dust suction port. One end of the first connecting pipe is fixedly connected with the upper surface of the dust removal cover.
[0012] Optionally, the outer surfaces of the first baffle and the second baffle are both provided with card slots, and the inner side walls of the card slots are slidably connected with dust filters.
[0013] Optionally, the materials of the connecting plate and the electrostatic net can be copper or aluminum, and the connecting plate is electrically connected to the output end of the electrostatic generator through a wire.
[0014] Optionally, an exhaust hole is opened on the right side of the dust removal box, and the exhaust hole communicates with the heat preservation cavity. The outer surface of the intermediate frequency furnace body is fixedly connected with an exhaust port, and one end of the exhaust port communicates with the heat preservation cavity.
[0015] The present utility model provides an intermediate frequency smelting furnace dust removal mechanism, which has the following beneficial effects:
[0016] 1. The dust removal mechanism of this intermediate frequency smelting furnace, through the settings of the dust removal cover, baffle plate, dust suction port, second connecting pipe, electrostatic generator, connecting plate and static electric net, enables this intermediate frequency smelting furnace dust removal mechanism to have the effect of facilitating the improvement of the dust removal effect on the intermediate frequency furnace. Through the combined settings of the dust removal cover, baffle plate, dust suction port and second connecting pipe, during the use process, even after the dust removal cover is opened, dust can still be absorbed from the dust suction port. Through the combined settings of the electrostatic generator, connecting plate, static electric net and counterweight ball, when in use, the dust-containing gas is electrically separated when passing through the high-voltage electrostatic field. After the dust particles combine with negative ions and carry negative charges, they tend to discharge on the anode surface and deposit, thus achieving the purpose of facilitating the improvement of the dust removal effect on the intermediate frequency furnace.
[0017] 2. The dust removal mechanism of this intermediate frequency smelting furnace, through the settings of the dust removal box, heat preservation cavity and exhaust port, enables this intermediate frequency smelting furnace dust removal mechanism to have the effect of facilitating the reuse of heat energy. Through the combined settings of the heat preservation cavity and exhaust port, during the use process, the hot gas after filtration is directly introduced into the interior of the heat preservation cavity and then discharged from the exhaust port. During this process, the intermediate frequency furnace body can be heat-insulated, reducing the energy loss rate of the materials in the heating cavity, and reusing the heat energy for the heat preservation effect, achieving the purpose of facilitating the reuse of heat energy. Description of the Drawings
[0018] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;
[0019] Figure 2 is a front-sectional structural schematic diagram of the present utility model;
[0020] Figure 3 is of the present utility model Figure 2 structural schematic diagram at position A in;
[0021] Figure 4 is a front-sectional structural schematic diagram of the dust removal box of the present utility model;
[0022] Figure 5 is a three-dimensional structural schematic diagram of the static electric net of the present utility model;
[0023] Figure 6 is a structural schematic diagram inside the limiting cylinder of the present utility model.
[0024] In the figure: 1, intermediate frequency furnace body; 2, heating chamber; 3, induction coil; 4, dust removal box; 5, limit cylinder; 6, electric lifting rod; 7, movable plate; 8, limit column; 9, first limit groove; 10, second limit groove; 11, support column; 12, dust removal cover; 13, baffle plate; 14, air inlet; 15, dust suction port; 16, air extraction pump; 17, three-way pipe fitting; 18, pipeline; 19, first connecting pipe; 20, second connecting pipe; 21, first baffle; 22, clamping groove; 23, electrostatic generator; 24, connecting plate; 25, static electricity net; 26, counterweight ball; 27, dust storage box; 28, second baffle; 29, dust filter screen; 30, heat preservation chamber; 31, exhaust port. Detailed implementation manner
[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.
[0026] Embodiment 1
[0027] The utility model provides a technical solution: a dust removal mechanism for an intermediate frequency smelting furnace, which is applied to an intermediate frequency furnace body 1. The inner side wall of the intermediate frequency furnace body 1 is fixedly connected with a heating cavity 2, and the inner side wall of the intermediate frequency furnace body 1 is fixedly connected with an induction coil 3. The outer surface of the intermediate frequency furnace body 1 is fixedly connected with a dust removal box 4. The upper surface of the dust removal box 4 is fixedly connected with a limiting cylinder 5. Inside the limiting cylinder 5 on the upper surface of the dust removal box 4, an electric lifting rod 6 is fixedly connected. One end of the telescopic rod of the electric lifting rod 6 is fixedly connected with a movable plate 7. The outer surface of the movable plate 7 is fixedly connected with a limiting column 8. The upper end of the first limiting groove 9 communicates with one end of the second limiting groove 10. The outer surface of the limiting column 8 is slidably connected with the inner side wall of the first limiting groove 9. The outer surface of the limiting cylinder 5 is provided with a first limiting groove 9 and a second limiting groove 10. The upper surface of the movable plate 7 is fixedly connected with a support column 11. The upper end of the support column 11 is fixedly connected with a dust removal cover 12 through a connecting frame. The lower surface of the dust removal cover 12 is fixedly connected with a shielding plate 13. The outer surface of the shielding plate 13 is slidably connected with the inner side wall of the intermediate frequency furnace body 1. The outer surface of the shielding plate 13 is provided with an air inlet 14. An air suction port 15 is provided on the upper side of the inner side wall of the intermediate frequency furnace body 1. The upper surface of the dust removal box 4 is fixedly connected with an air extraction pump 16. The input end of the air extraction pump 16 is fixedly connected with a pipeline 18. The middle part of the outer surface of the pipeline 18 is fixedly connected with and communicates with the air suction port 15. One end of a first connecting pipe 19 is fixedly connected with the upper surface of the dust removal cover 12. The upper end of the pipeline 18 is inserted with the first connecting pipe 19. The inner side wall of the dust removal box 4 is fixedly connected with a first baffle 21 and a second baffle 28. The outer surfaces of the first baffle 21 and the second baffle 28 are both provided with clamping grooves 22. The inner side wall of the clamping groove 22 is slidably connected with a dust filter screen 29. The outer surface of the dust removal box 4 is fixedly connected with an electrostatic generator 23. The inner side wall of the dust removal box 4 is fixedly connected with a connecting plate 24. The materials of the connecting plate 24 and the static electric net 25 can be copper or aluminum. The connecting plate 24 is electrically connected with the output end of the electrostatic generator 23 through a wire. The lower surface of the connecting plate 24 is fixedly connected with a static electric net 25. The lower end of the static electric net 25 is fixedly connected with a counterweight ball 26. The inner side wall of the dust removal box 4 is slidably connected with a dust storage box 27.
[0028] In order to facilitate improving the dust removal effect of the intermediate frequency furnace, as shown in the appendix Figures 1 to 6As shown in the figure, the present application adopts the following structure. Through the settings of the dust removal hood 12, the baffle plate 13, the dust suction port 15, the second connecting pipe 20, the electrostatic generator 23, the connecting plate 24 and the electrostatic net 25, the dust removal mechanism of the intermediate frequency smelting furnace has the effect of facilitating the improvement of the dust removal effect on the intermediate frequency furnace. During actual use, after the material is placed inside the heating cavity 2, the induction coil 3 is energized. High-density magnetic lines of force are generated in the induction coil 3 and cut the metal material placed in the heating cavity 2, generating a large eddy current in the metal material, thereby achieving the heating of the metal material. The heated and melted metal material will generate smoke and dust. At this time, the air extraction pump 16 works, and the smoke and dust will be sucked in from the dust removal hood 12, flow through the first connecting pipe 19 and the pipeline 18, and then enter the interior of the dust removal box 4. When the dust removal hood 12 is opened, the telescopic rod of the electric lifting rod 6 extends deep, driving the movable plate 7 to rise inside the limiting cylinder 5. At this time, since the limiting column 8 first slides inside the first limiting groove 9, the dust removal hood 12 rises vertically. When the limiting column 8 slides into the second limiting groove 10, as the movable plate 7 continues to rise, the support column 11 will rotate following the movable plate 7, thereby driving the dust removal hood 12 to deflect to one side. After the dust removal hood 12 is opened, the baffle plate 13 will not block the dust suction port 15. Then, through the suction force generated by the air extraction pump 16, after being connected to the dust suction port 15 from the second connecting pipe 20, the dust will be sucked away from the dust suction port 15, avoiding the phenomenon that dust cannot be continuously absorbed after the dust removal hood 12 is opened. Then, when the electrostatic generator 23 works, a high-voltage electrostatic field is generated between the connecting plate 24 and the electrostatic net 25. When the dust passes through the high-voltage electrostatic field, it combines with the negative ions in the electrostatic field, becomes negatively charged, and tends to discharge on the anode surface, so that the dust quickly deposits inside the dust storage box 27. After that, with the air circulation, the dust filter screen 29 filters the dust that has not been completely processed, and then the heated air after filtration and purification is discharged from the right side of the dust removal box 4 into the interior of the heat preservation cavity 30. That is, through the coordinated setting of the dust removal hood 12, the baffle plate 13, the dust suction port 15 and the second connecting pipe 20, during the use process, even after the dust removal hood 12 is opened, dust can still be sucked from the dust suction port 15. Through the coordinated setting of the electrostatic generator 23, the connecting plate 24, the electrostatic net 25 and the counterweight ball 26, when the dust-containing gas passes through the high-voltage electrostatic field during use, it is electrically separated. The dust particles combine with the negative ions to become negatively charged and then tend to discharge and deposit on the anode surface, thereby achieving the purpose of facilitating the improvement of the dust removal effect on the intermediate frequency furnace;
[0029] Embodiment 2
[0030] The technical solution provided by the present invention: A heat preservation cavity 30 is opened on the inner side wall of the intermediate frequency furnace body 1 outside the induction coil 3. An exhaust hole is opened on the right side of the dust removal box 4, and the exhaust hole communicates with the heat preservation cavity 30. The outer surface of the intermediate frequency furnace body 1 is fixedly connected with an exhaust port 31, and one end of the exhaust port 31 communicates with the heat preservation cavity 30.
[0031] In order to facilitate the reuse of thermal energy, as shown in the appendix Figures 1 to 6 As shown, the present application adopts the following structure. Through the settings of the dust removal box 4, the heat preservation cavity 30 and the exhaust port 31, the dust removal mechanism of the intermediate frequency smelting furnace has the effect of facilitating the reuse of thermal energy. During actual use, the processed high-temperature gas is discharged from the right side of the dust removal box 4 into the interior of the heat preservation cavity 30 in the intermediate frequency furnace body 1, thereby forming a high-temperature heat preservation layer on the outside of the intermediate frequency furnace body 1, reducing the heat loss rate of the metal in the heating cavity 2, improving the heat preservation performance, and reusing the high-temperature gas extracted during the dust removal operation, reducing energy consumption. That is, through the coordinated settings of the heat preservation cavity 30 and the exhaust port 31, during use, the filtered hot gas is directly introduced into the interior of the heat preservation cavity 30 and then discharged from the exhaust port 31. During this process, the intermediate frequency furnace body 1 can be heat-preserved, reducing the energy loss rate of the materials in the heating cavity 2, and reusing the thermal energy for the heat preservation effect, achieving the purpose of facilitating the reuse of thermal energy.
[0032] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.
Claims
1. A dust removal mechanism for an intermediate frequency smelting furnace, which is applied to an intermediate frequency furnace body, and is characterized in that: The inner side wall of the intermediate frequency furnace body is fixedly connected with a heating cavity, and the inner side wall of the intermediate frequency furnace body is fixedly connected with an induction coil. The outer surface of the intermediate frequency furnace body is fixedly connected with a dust removal box. The upper surface of the dust removal box is fixedly connected with a limiting cylinder. Inside the limiting cylinder on the upper surface of the dust removal box, there is a fixedly connected electric lifting rod. One end of the telescopic rod of the electric lifting rod is fixedly connected with a movable plate. The outer surface of the limiting cylinder is provided with a first limiting groove and a second limiting groove. The upper surface of the movable plate is fixedly connected with a support column. The upper end of the support column is fixedly connected with a dust removal cover through a connecting frame. The lower surface of the dust removal cover is fixedly connected with a shielding plate. The upper side of the inner side wall of the intermediate frequency furnace body is provided with a dust suction port. The upper surface of the dust removal box is fixedly connected with an air extraction pump. The input end of the air extraction pump is fixedly connected with a pipeline. The upper end of the pipeline is inserted with a first connecting pipe. The inner side wall of the dust removal box is fixedly connected with a first baffle and a second baffle. The outer surface of the dust removal box is fixedly connected with an electrostatic generator. The inner side wall of the dust removal box is fixedly connected with a connecting plate. The lower surface of the connecting plate is fixedly connected with an electrostatic net. The lower end of the electrostatic net is fixedly connected with a counterweight ball. The inner side wall of the dust removal box is slidably connected with a dust storage box. The outer side of the induction coil on the inner side wall of the intermediate frequency furnace body is provided with a heat preservation cavity.
2. The dust removal mechanism of an intermediate frequency smelting furnace according to claim 1, wherein: The outer surface of the movable plate is fixedly connected with a limiting column. The upper end of the first limiting groove communicates with one end of the second limiting groove. The outer surface of the limiting column is slidably connected with the inner side wall of the first limiting groove.
3. The dust removal mechanism of an intermediate frequency smelting furnace according to claim 1, characterized in that: The outer surface of the shielding plate is slidably connected with the inner side wall of the intermediate frequency furnace body. The outer surface of the shielding plate is provided with an air inlet.
4. The dust removal mechanism of an intermediate frequency smelting furnace according to claim 1, characterized in that: The outer surface of the middle part of the pipeline is fixedly connected with and communicates with the dust suction port. One end of the first connecting pipe is fixedly connected with the upper surface of the dust removal cover.
5. The dust removal mechanism of an intermediate frequency smelting furnace according to claim 1, characterized in that: The outer surfaces of both the first baffle and the second baffle are provided with clamping grooves. The inner side walls of the clamping grooves are slidably connected with dust filters.
6. The dust removal mechanism of an intermediate frequency smelting furnace according to claim 1, wherein: The connecting plate and the electrostatic net are made of copper or aluminum. The connecting plate is electrically connected to the output end of the electrostatic generator through a wire.
7. The dust removal mechanism of an intermediate frequency smelting furnace according to claim 1, characterized in that: An exhaust hole is opened on the right side of the dust removal box. The exhaust hole communicates with the heat preservation cavity. The outer surface of the intermediate frequency furnace body is fixedly connected with an exhaust port. One end of the exhaust port communicates with the heat preservation cavity.
Citation Information
Patent Citations
Intermediate frequency smelting furnace dust removal mechanism
CN208091243U