Reduction workshop scattered smoke collecting cover

Abstract

The utility model discloses a scattered smoke collecting cover for a reduction workshop, which relates to the technical field of smoke collection and comprises a collecting cover body, a dust collection pipeline component and a reduction furnace, a pull rod is arranged on the right side of the collecting cover body, one end of the pull rod is rotatably connected with the collecting cover body through a rotating shaft, and a curtain falling plate is arranged at the other end of the pull rod. The output end of the first driving motor drives a rotating shaft to rotate through a chain, a curtain falling plate on a pull rod moves up and down, the distance between the curtain falling plate and a furnace door of the reduction furnace is closer, the dust collection air volume and the dust collection effect are better guaranteed, meanwhile, the collecting cover body drives rolling wheels to roll on guide rails through the second driving motor, and left-right movement of the collecting cover body is achieved. And filling and maintenance of workers are facilitated. By the adoption of the structure, left-right movement of the collecting cover body and up-down movement of the curtain falling plate are achieved through forward and reverse rotation control of the driving motor, the dust collection air volume and the dust collection effect are effectively improved, and installation and maintenance are convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of flue gas collection, in particular to a smoke collection hood for scattered smoke in a reduction workshop. Background Art

[0002] With the development of modern industry, the pollution of the environment by dust is becoming increasingly serious. Controlling dust pollution and purifying the living environment of human beings have become the consensus of the Chinese people. When filling materials and overhauling in the charging port of a reduction furnace, the furnace door needs to be opened, which will cause the dusty flue gas in the furnace to escape from the charging port and pollute the external environment. In the prior art, a dust collection hood is usually installed at the top of the charging port of the reduction furnace to collect the scattered smoke escaping. However, this dust collection hood is usually of a mechanically fixed structure, resulting in a limited distance between the suction port of the dust collection hood and the charging port. Since the distance is too close, it is not convenient for workers to fill materials and maintain, so that the distance between the suction port of the dust collection hood and the charging port is relatively far, thus reducing the dust suction effect of the dust collection hood. At the same time, the charging ports in the reduction furnace are not opened simultaneously, and the suction port of the dust collection hood needs to be opened at the corresponding charging port position to improve the dust suction air volume of the suction port. Content of the Utility Model

[0003] The purpose of the utility model is to provide a smoke collection hood for scattered smoke in a reduction workshop. The hanging curtain plate arranged on the collection hood can move up and down and left and right. At the same time, an electromagnetic throttle valve is arranged at the suction port of the collection hood, effectively improving the dust suction air volume and dust suction effect of the collection hood, reducing the loss of dust suction air volume, being energy-saving and efficient, and being convenient for overhaul and maintenance.

[0004] To achieve the above purpose, the utility model provides a smoke collection hood for scattered smoke in a reduction workshop, including a collection hood body, a dust suction pipeline assembly and a reduction furnace. The dust suction pipeline assembly is arranged on the reduction furnace through a support plate. A guide rail is arranged on the reduction furnace. The collection hood body is arranged on the reduction furnace and is slidably connected with the guide rail. A pull rod is arranged on the right side of the collection hood body. One end of the pull rod is provided with a rotating shaft, and the rotating shaft is rotatably connected with the collection hood body. The other end of the pull rod is provided with a hanging curtain plate, and the hanging curtain plate is hinged with the pull rod. The dust suction pipeline assembly includes a main suction pipe and a sub-suction pipe. The main suction pipe is arranged on the support plate. An electromagnetic throttle valve is arranged on one side of the main suction pipe. The other end of the electromagnetic throttle valve is connected with an elastic corrugated pipe. The other end of the elastic corrugated pipe is connected with one end of the sub-suction pipe. The other end of the sub-suction pipe extends into the collection hood.

[0005] Preferably, the collection hood body includes a collection hood and a fixing frame. A driving motor one and a driving motor two are arranged on the fixing frame. The rotating shaft is connected with the output shaft of the driving motor one through a chain. Roller wheels are arranged at the bottom end of the fixing frame, and the four roller wheels are symmetrically arranged on both sides of the fixing frame. The driving motor two drives the roller wheels.

[0006] Preferably, at least two branch air holes are equidistantly arranged on the side surface of the main suction pipe. The branch air holes are circular, and the telescopic length of the elastic corrugated pipe is set to be not less than 500 mm.

[0007] Preferably, a furnace door is arranged on the side surface of the reduction furnace. The furnace door is arranged in two rows, upper and lower. A furnace cover for opening and closing is arranged at the outlet of the furnace door.

[0008] Preferably, a sealing structure is arranged at the connection of the collection hood and the branch suction pipe. The sealing structure is a buffer sealing ring, and the material of the buffer sealing ring is set to be PP or polytetrafluoroethylene PTFE.

[0009] Preferably, a cover plate is arranged at the top of the pull rod, and the material of the cover plate is set to be carbon steel plate.

[0010] Therefore, compared with the prior art, the reduction workshop fume collection hood of the present utility model adopting the above structure has the following beneficial effects:

[0011] (1) The output end of the driving motor I on the collection hood body of the present utility model drives the rotating shaft to rotate through a chain, realizing the up and down movement of the hanging curtain plate on the pull rod, making the hanging curtain plate closer to the furnace door of the reduction furnace, better ensuring the dust suction air volume and dust suction effect. At the same time, the collection hood body drives the rollers to roll on the guide rail through the driving motor, realizing the left and right movement of the collection hood body, which is convenient for workers to fill materials and maintain.

[0012] (2) Electromagnetic throttle valves are arranged on each branch suction pipe in the dust suction pipe assembly of the present utility model. The opening and closing of each branch suction pipe are controlled through the electromagnetic throttle valves, ensuring the dust suction air volume at the furnace mouth of the reduction furnace, reducing the loss of the dust suction air volume, and being energy-saving and efficient. Description of the Drawings

[0013] Figure 1 is the front view of the overall structure of the embodiment of the reduction workshop fume collection hood of the present utility model;

[0014] Figure 2 is the top view of the overall structure of the embodiment of the reduction workshop fume collection hood of the present utility model; Description of the Drawings

[0016] 1. Reduction furnace; 2. Main suction pipe; 3. Support plate; 4. Electromagnetic throttle valve; 5. Elastic corrugated pipe; 6. Branch suction pipe; 7. Collection hood body; 701. Collection hood; 702. Fixed frame; 703. Driving motor I; 704. Roller; 705. Driving motor II; 706. Chain; 8. Rotating shaft; 9. Pull rod; 10. Hinge; 11. Hanging curtain plate; 12. Guide rail; 13. Furnace cover; 14. Furnace door. Detailed Embodiment

[0017] The technical solution of the present utility model will be further described below with reference to the accompanying drawings and embodiments.

[0018] Unless otherwise defined, the technical terms or scientific terms used in the present utility model shall have the ordinary meanings understood by those with ordinary skills in the field to which the present utility model belongs. The "first", "second" and similar words used in the present utility model do not denote any order, quantity or importance, but are only used to distinguish different components. Words such as "comprising" or "including" mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0019] Embodiment

[0020] As Figure 1 - Figure 2 shown, Figure 1 is the front view of the overall structure of the embodiment of the smoke collection hood for the reduction workshop of the present utility model; Figure 2This is the top view of the overall structure of the embodiment of the smoke collection hood in the reduction workshop of the present utility model; the structure of the smoke collection hood in the reduction workshop of the present utility model includes a collection hood body 7, and the collection hood body 7 is installed on the top of the reduction furnace 1 on the side where the furnace door 14 is provided. There are two guide rails 12 on the reduction furnace 1 for the collection hood body 7 to slide thereon. The side of the reduction furnace 1 is provided with a furnace door 14 which is arranged in two rows up and down. At the outlet of the furnace door 14, there is a furnace cover 13 for opening and closing, which is used for workers to fill materials and perform maintenance, and can block the furnace door 14 to prevent the leakage of flue gas in the furnace when the reduction furnace is not in use. The furnace cover 13 is connected to the furnace door 14 through a fixed hinge. The dust suction pipe assembly includes a main suction pipe 2 and branch suction pipes 6. The main suction pipe 2 is arranged on the support plate 3 and fixedly connected to the reduction furnace 1. At least two circular branch air holes are equidistantly opened on one side of the main suction pipe 2 and connected to the electromagnetic throttle valve 4 through a flange for controlling the opening and closing of the branch suction pipes. At the same time, an elastic corrugated pipe 5 is provided at the head end of the branch suction pipe 6, and the telescopic length of the elastic corrugated pipe 5 is not less than 500 mm to facilitate the telescoping of the branch suction pipe 6. The tail end of the branch suction pipe 6 penetrates through the collection hood body 7 and is fixedly sealed with it. The collection hood body 7 includes a collection hood 701 and a fixing frame 702. A driving motor 703 and a driving motor 705 are arranged on the fixing frame 702. A pull rod 9 is arranged on the right side of the collection hood body 7. A cover plate (not shown in the figure) is fixed at the top of the pull rod 9. One end of the pull rod 9 is rotatably connected to the collection hood body 7 through a rotating shaft 8. The rotating shaft 8 penetrates through the through hole on the pull rod 9 and is fixedly connected to it. The hanging curtain plate 11 at the other end of the pull rod 9 is hung on one side of the pull rod 9 through a hinge 10. The output end of the driving motor 703 drives the sprocket (not shown in the figure) on the rotating shaft 8 to rotate through a chain 706, so as to realize the up and down movement of the hanging curtain plate 11 on the pull rod 9. Four rollers 704 are arranged at the bottom end of the fixing frame 702 and are symmetrically arranged on both sides of the fixing frame 702 for supporting the collection hood body. The output shaft of the driving motor 705 is fixed at the center position of the roller 704, and the roller 704 is driven to rotate by the driving motor 705 to realize the left and right sliding of the collection hood body 7 on the guide rail 12. By automatically controlling the forward and reverse rotation of the driving motor 703, the up and down movement of the hanging curtain plate on one side of the collection hood body can be realized, ensuring that during the material filling work at the furnace mouth of the reduction furnace by workers, the hanging curtain plate moves down, enhancing the dust suction air volume and dust suction effect, and when the reduction furnace is not working or being maintained, the hanging curtain plate can be moved up and the collection hood body can be moved left and right as a whole to facilitate the maintenance operation of workers.

[0021] Therefore, the reduction workshop fume collection hood with the above structure is adopted in the present utility model. The output end of the driving motor I on the collection hood body drives the rotating shaft to rotate through a chain, realizing the up and down movement of the hanging curtain plate on the pull rod, making the hanging curtain plate closer to the furnace door of the reduction furnace, better ensuring the dust suction air volume and dust suction effect. At the same time, the collection hood body drives the rollers to roll on the guide rail through the driving motor, realizing the left and right movement of the collection hood body, which is convenient for workers to fill materials and maintain. In the dust suction pipeline assembly, the opening and closing of each sub-suction air pipe are controlled by an electromagnetic throttle valve to ensure the dust suction air volume at the furnace mouth of the reduction furnace, reduce the loss of the dust suction air volume, and save energy and be highly efficient.

[0022] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model and are not intended to limit them. Although the present utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that they can still modify or equivalently replace the technical solutions of the present utility model, and these modifications or equivalent replacements cannot make the modified technical solutions deviate from the spirit and scope of the technical solutions of the present utility model.

Claims

1. The smoke collection hood in the reduction workshop is characterized by: It includes a collecting hood body, a dust collection duct assembly and a reduction furnace, the dust collection duct assembly is arranged on the reduction furnace through a support plate, the reduction furnace is provided with a guide rail, the collecting hood body is arranged on the reduction furnace and is slidably connected to the guide rail, a pull rod is arranged on the right side of the collecting hood body, a rotating shaft is arranged at one end of the pull rod, the rotating shaft is rotatably connected to the collecting hood body, a curtain plate is arranged at the other end of the pull rod, and the curtain plate is hinged to the pull rod; the dust collection duct assembly includes a main suction pipe and a branch suction pipe, the main suction pipe is arranged on the support plate, an electromagnetic throttle valve is arranged on one side of the main suction pipe, the other end of the electromagnetic throttle valve is connected to an elastic bellows, the other end of the elastic bellows is connected to one end of the branch suction pipe, and the other end of the branch suction pipe extends to the interior of the collecting hood.

2. The reduction workshop smoke collection hood according to claim 1, characterized in that: The collecting hood body comprises a collecting hood and a fixing frame, a driving motor 1 and a driving motor 2 are arranged on the fixing frame, the rotating shaft is connected to the output shaft of the driving motor 1 through a chain, a roller is arranged at the bottom end of the fixing frame, four of the rollers are symmetrically arranged on both sides of the fixing frame, and the driving motor 2 drives the rollers.

3. The smoke collection hood for a reduction workshop according to claim 1 is characterized in that: At least two air distribution holes are equidistantly arranged on the side of the main air intake pipe, and the air distribution holes are arranged in a circular shape. The retractable length of the elastic bellows is arranged to be no less than 500 mm.

4. The reduction workshop smoke collection hood according to claim 1, characterized in that: A furnace door is provided on the side of the reduction furnace, and the furnace doors are arranged in two rows, upper and lower. A furnace cover for opening and closing is provided at the exit of the furnace door.

5. The reduction workshop smoke collection hood according to claim 1, characterized in that: The collecting hood is provided with a sealing structure at the connection position of the sub-intake pipe, the sealing structure is provided as a buffer sealing ring, and the material of the buffer sealing ring is provided as PP or polytetrafluoroethylene PTFE.

6. The reduction workshop smoke collection hood according to claim 1, characterized in that: A cover plate is arranged on the top of the pull rod, and the material of the cover plate is set to be a carbon steel plate.

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