A smoke removal mechanism for a furnace

Abstract

The utility model discloses a kind of smoke-removing mechanism of smelting furnace, it is related to intermediate frequency furnace technical field, to solve the problem that smoke cover and furnace mouth have certain distance in prior art, cannot avoid that smoke spreads to workshop and smoke cover can affect operating space, the technical scheme used is, intermediate frequency furnace is fixed to the top of workbench, there is smoke collecting cover on workbench, there is displacement mechanism between smoke collecting cover and workbench, opening is set on smoke collecting cover, there is protective door at opening, there is traction mechanism on smoke collecting cover, protective door is connected with traction mechanism, there is movable smoke pipe on the top of smoke collecting cover, movable smoke pipe is connected with the inside of smoke collecting cover, movable smoke pipe is slidably connected to the inside of fixed smoke pipe, fixed smoke pipe is fixed with workshop, the utility model is designed into full-enclosing structure by smoke collecting cover, prevent smoke spread, by setting displacement mechanism and traction mechanism on smoke collecting cover and protective door, so that smoke collecting cover and with intermediate frequency furnace produce certain distance, so as to leave relatively spacious operating space.

Description

Technical Field

[0001] This utility model relates to the field of medium frequency furnace technology, specifically a furnace smoke removal mechanism. Background Technology

[0002] Chinese patent CN213578792U discloses a movable fume hood for a series resonant intermediate frequency furnace. The technical solution includes a mounting frame on which a furnace body is fixed. A furnace cover is provided on the top of the furnace body. L-shaped plates are symmetrically fixed on both sides of the top of the furnace cover. A fume hood body is provided directly above the top of the furnace body. A smoke collection pipe is connected to one side of the fume hood body. A corrugated connecting pipe is connected to the end of the smoke collection pipe away from the fume hood body. A purification device is connected to the end of the corrugated connecting pipe away from the smoke collection pipe.

[0003] The existing technology also has the following shortcomings: the fume hood of the existing technology is a certain distance from the furnace opening, which cannot prevent the spread of smoke and dust into the workshop, resulting in poor smoke and dust treatment and affecting the health of workers. In addition, when adding solid metal or pouring liquid metal into the medium frequency furnace, the fume hood above will seriously affect the operating space and affect work efficiency. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the existing defects and provide a furnace smoke removal mechanism that can effectively solve the problems in the background art.

[0005] To achieve the above objectives, this utility model discloses a furnace fume removal mechanism. The technical solution includes an intermediate frequency furnace, a fume hood, and a workbench. The intermediate frequency furnace is fixed above the workbench. The workbench has a fume hood, and there is a displacement mechanism between the fume hood and the workbench. An opening is made in the fume hood, and a protective door is provided at the opening. A traction mechanism is provided on the fume hood, and the protective door is connected to the traction mechanism. A movable exhaust pipe is located at the top of the fume hood and is connected to the inside of the fume hood. The movable exhaust pipe is slidably connected to the inside of a fixed exhaust pipe, and the fixed exhaust pipe is fixed to the workshop.

[0006] As a preferred technical solution of this utility model, the displacement mechanism includes a guide wheel and a track. The guide wheel is fixedly connected to the bottom of the smoke hood, the track is fixed to the surface of the workbench, and the guide wheel rolls on the track.

[0007] As a preferred technical solution of this utility model, the displacement mechanism also includes a rack and a drive motor. The drive motor is fixed on the worktable, and a gear is fixedly connected to the output shaft of the drive motor. The rack is fixed to the smoke collection hood above the guide wheel, and the gear and rack mesh with each other.

[0008] As a preferred technical solution of this utility model, an avoidance opening is provided on the smoke collection hood above the opening, and guide grooves are provided on the smoke collection hoods on both sides of the avoidance opening, and the protective door is slidably connected to the inside of the guide grooves.

[0009] As a preferred technical solution of this utility model, the traction mechanism includes a fixed frame, a traction motor and a traction rope. The fixed frame is fixed to the smoke hood, the fixed frame has a traction motor, the output shaft of the traction motor has a traction rope, and the other end of the traction rope is connected to the protective door, so that the protective door can be controlled to move up and down.

[0010] As a preferred technical solution of this utility model, there is a flexible sealing cover between the movable exhaust pipe and the fixed exhaust pipe. One end of the flexible sealing cover is fixed to the movable exhaust pipe, and the other end is fixed to the fixed exhaust pipe.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: By designing the fume hood and protective door as a fully enclosed structure, this utility model can prevent the diffusion of some smoke and dust, thus achieving the best state of smoke and dust treatment. By setting displacement and traction mechanisms on the fume hood and protective door, the distance between the fume hood and the intermediate frequency furnace and the opening and closing of the protective door can be controlled. This ensures that when adding solid metal and pouring liquid metal, the fume hood is kept at a certain distance from the intermediate frequency furnace, thereby leaving a more spacious operating space and improving work efficiency. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the default state of the structure of this utility model; Figure 2 This is an enlarged view of section A of this utility model; Figure 3 This is a schematic diagram of the working state of the structure of this utility model. Figure 1 ; Figure 4 This is an enlarged view of section B of this utility model; Figure 5 This is a schematic diagram of the working state of the structure of this utility model. Figure 2 ; Figure 6 This is a schematic diagram of the smoke collection hood structure of this utility model. Figure 1 ; Figure 7 This is a schematic diagram of the smoke collection hood structure of this utility model. Figure 2 ; Figure 8 This is a schematic diagram of the installation state of the flexible sealing cover of this utility model.

[0013] In the diagram: 1. Medium frequency furnace; 2. Fume hood; 203. Opening; 2031. Clearance opening; 204. Guide groove; 3. Movable exhaust pipe; 4. Fixed exhaust pipe; 5. Protective door; 6. Traction mechanism; 601. Fixed frame; 602. Traction motor; 603. Traction rope; 7. Displacement mechanism; 701. Guide wheel; 702. Rack; 703. Drive motor; 704. Gear; 8. Workbench; 801. Track; 9. Flexible sealing cover. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example 1

[0015] like Figures 1 to 8 As shown, this utility model discloses a furnace fume removal mechanism. The technical solution includes a medium-frequency furnace 1, a fume hood 2, and a worktable 8. The medium-frequency furnace 1 is fixed above the worktable 8. The fume hood 2 is on the worktable 8. A displacement mechanism 7 is located between the fume hood 2 and the worktable 8. The displacement mechanism 7 includes a guide wheel 701 and a track 801. The guide wheel 701 is fixedly connected to the bottom of the fume hood 2, and the track 801 is fixed to the surface of the worktable 8. The guide wheel 701 rolls on the track 801. The displacement mechanism 7 also includes a rack 702 and a drive motor 703. 3. Fixed on the workbench 8, a gear 704 is fixedly connected to the output shaft of the drive motor 703, and a rack 702 is fixed to the fume hood 2 above the guide wheel 701. The gear 704 and the rack 702 mesh with each other, and the drive motor 703 controls the forward and backward movement of the fume hood 2. An opening 203 is opened on the fume hood 2, and a protective door 5 is provided at the opening 203. An avoidance opening 2031 is opened on the fume hood 2 above the opening 203. The avoidance opening 2031 keeps the front plate of the fume hood 2 a certain distance away from the furnace mouth of the medium frequency furnace 1 to prevent the high temperature of the furnace mouth from melting the front plate of the fume hood 2. To prevent damage, guide grooves 204 are provided on both sides of the smoke collection hood 2 at the avoidance opening 2031. The protective door 5 is slidably connected to the inside of the guide groove 204. The smoke collection hood 2 has a traction mechanism 6, and the protective door 5 is connected to the traction mechanism 6. The traction mechanism 6 includes a fixing frame 601, a traction motor 602, and a traction rope 603. The fixing frame 601 is fixed to the smoke collection hood 2, and the fixing frame 601 has the traction motor 602. The output shaft of the traction motor 602 has the traction rope 603, and the other end of the traction rope 603 is connected to the protective door 5, so that the protective door 5 can be controlled to move up and down. The top has a movable exhaust pipe 3, which is connected to the inside of the smoke collection hood 2. The movable exhaust pipe 3 is slidably connected to the inside of the fixed exhaust pipe 4. There is a small gap between the movable exhaust pipe 3 and the fixed exhaust pipe 4, which does not hinder sliding. There is a flexible sealing cover 9 between the movable exhaust pipe 3 and the fixed exhaust pipe 4. The outer walls of the movable exhaust pipe 3 and the fixed exhaust pipe 4 are provided with flanges. One end of the flexible sealing cover 9 is fixed to the movable exhaust pipe 3 through the flange, and the other end is fixed to the fixed exhaust pipe 4 to achieve a seal. The fixed exhaust pipe 4 is fixed to the workshop, and the other end of the fixed exhaust pipe 4 is connected to the exhaust fan.

[0016] The working principle of this utility model: During the working process of this utility model... Figure 1 In the default state, solid metal is first placed inside the intermediate frequency furnace 1. After the addition is complete, the drive motor 703 is rotated to move the fume hood 2 directly above the intermediate frequency furnace 1. Figure 3 As shown, at this time, the movable exhaust pipe 3 will move outward synchronously, maintaining the connection between the smoke hood 2 and the fixed exhaust pipe 4. The flexible sealing cover 9 will extend according to the moving distance to ensure a seal. Then, the traction motor 602 will be controlled to lower the protective door 5, so that it completely covers the intermediate frequency furnace 1. Figure 5 As shown, during the smelting process, the generated fumes enter the movable exhaust pipe 3 and the fixed exhaust pipe 4 through the fume hood 2 until they are discharged. After the smelting is completed, the traction motor 602 is controlled to open the protective door 5, and the drive motor 703 is controlled to move the fume hood 2 away from the medium frequency furnace 1, so that it can reserve enough space for processes such as pouring liquid metal.

[0017] The circuits and mechanical connections involved in this utility model are common practices used by those skilled in the art, and technical inspiration can be obtained through a limited number of experiments. They are common knowledge.

[0018] Components not described in detail in this article are existing technologies.

[0019] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A furnace fume extraction mechanism, comprising an intermediate frequency furnace (1), a fume hood (2), and a worktable (8), characterized in that: The medium frequency furnace (1) is fixed above the workbench (8). There is a fume hood (2) on the workbench (8). There is a displacement mechanism (7) between the fume hood (2) and the workbench (8). An opening (203) is opened on the fume hood (2). There is a protective door (5) at the opening (203). There is a traction mechanism (6) on the fume hood (2). The protective door (5) is connected to the traction mechanism (6). There is a movable exhaust pipe (3) on the top of the fume hood (2). The movable exhaust pipe (3) is connected to the inside of the fume hood (2). The movable exhaust pipe (3) is slidably connected to the inside of the fixed exhaust pipe (4). The fixed exhaust pipe (4) is fixed to the workshop.

2. The furnace fume removal mechanism according to claim 1, characterized in that: The displacement mechanism (7) includes a guide wheel (701) and a track (801). The guide wheel (701) is fixedly connected to the bottom of the smoke hood (2), and the track (801) is fixed to the surface of the workbench (8). The guide wheel (701) rolls on the track (801).

3. The furnace fume removal mechanism according to claim 2, characterized in that: The displacement mechanism (7) also includes a rack (702) and a drive motor (703). The drive motor (703) is fixed on the worktable (8). A gear (704) is fixedly connected to the output shaft of the drive motor (703). The rack (702) is fixed to the smoke hood (2) above the guide wheel (701). The gear (704) and the rack (702) mesh with each other.

4. The furnace fume removal mechanism according to claim 1, characterized in that: An avoidance opening (2031) is provided on the smoke collection hood (2) above the opening (203). Guide grooves (204) are provided on the smoke collection hoods (2) on both sides of the avoidance opening (2031). The protective door (5) is slidably connected to the inside of the guide grooves (204).

5. A furnace smoke removal mechanism according to claim 4, characterized in that: The traction mechanism (6) includes a fixed frame (601), a traction motor (602) and a traction rope (603). The fixed frame (601) is fixed to the smoke hood (2). The fixed frame (601) has a traction motor (602). The output shaft of the traction motor (602) has a traction rope (603). The other end of the traction rope (603) is connected to the protective door (5) so that it can control the up and down movement of the protective door (5).

6. A furnace fume removal mechanism according to claim 1, characterized in that: There is a flexible sealing cover (9) between the movable exhaust pipe (3) and the fixed exhaust pipe (4). One end of the flexible sealing cover (9) is fixed to the movable exhaust pipe (3), and the other end is fixed to the fixed exhaust pipe (4).

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