Electric furnace dust hood for non-ferrous metal smelting

Abstract

The utility model relates to the field of non-ferrous metal smelting electric furnaces, and discloses an electric furnace dust hood for non-ferrous metal smelting, which comprises a base, an electric furnace body fixed in the middle of the top of the base, a round hole formed in the top of the electric furnace body, a dust hood arranged at the top of the electric furnace body, and a lifting mechanism arranged at the top of the base and used for lifting the dust hood. An annular clamping block is fixed to the bottom of the annular plate, the side wall of the electric furnace body is sleeved with an annular base, an annular clamping groove is formed in the top of the annular base, a sealing mechanism used for sealing the dust hood is arranged on the side wall of the electric furnace body, and a filtering mechanism is arranged in the dust hood. The dust suction hood is lifted through the lifting mechanism and is sealed by matching with the sealing mechanism, the operation is simple, the time is saved, the working efficiency is improved, the air in the dust suction hood is pumped out through the air pumping mechanism, so that a negative pressure environment is formed in the dust suction hood, the treatment speed of dust generated in the smelting process of nonferrous metals is accelerated, and the dust suction hood is safe and reliable. And the practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of non-ferrous metal smelting electric furnaces, in particular to a dust removal hood for a non-ferrous metal smelting electric furnace. Background Technique

[0002] Smelting is a process of heating ore or metal concentrate to a high temperature and then separating metals or metal compounds from other components through physical or chemical methods. When smelting non-ferrous metals, they will be placed in an electric furnace for heating. During the process of electric furnace smelting, a large amount of dust will be generated, seriously affecting the working environment of the workshop and causing environmental pollution. Therefore, a dust removal hood for a non-ferrous metal smelting electric furnace is needed.

[0003] During the use of traditional electric furnace dust removal hoods, bolt holes are usually provided at the bottom or around the dust removal hood, and the dust removal hood is fixed on the electric furnace body through a locking method using bolts and nuts to ensure the tight connection between the dust removal hood and the electric furnace and avoid shaking or falling off. When slagging and feeding operations need to be carried out inside the furnace, the bolts and nuts need to be removed one by one in advance to separate the dust removal hood from the furnace body, and then the slagging and feeding operations can be carried out. Such an operation method not only increases the working intensity of workers but also takes a lot of time and reduces work efficiency. Content of the Utility Model

[0004] The purpose of the utility model is to solve the shortcomings existing in the prior art and propose a dust removal hood for a non-ferrous metal smelting electric furnace.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A dust removal hood for a non-ferrous metal smelting electric furnace, including a base. In the middle of the top of the base, an electric furnace body is fixed. A round hole is opened at the top of the electric furnace body. A dust suction hood is arranged at the top of the electric furnace body. A lifting mechanism for lifting the dust suction hood is arranged on the top of the base. A circular plate is fixed at the bottom of the dust suction hood. A circular clamping block is fixed at the bottom of the circular plate. A circular seat is sleeved on the side wall of the electric furnace body. A circular clamping groove is opened at the top of the circular seat. A sealing mechanism for sealing the dust suction hood is arranged on the side wall of the electric furnace body. A filtering mechanism is arranged inside the dust suction hood. An air extraction mechanism is arranged at the top of the dust suction hood. During the use of this device, the dust suction hood is lifted through the lifting mechanism, and the dust suction hood is sealed in cooperation with the sealing mechanism. The operation is simple, saving a lot of time and improving work efficiency. And the air inside the dust suction hood is extracted through the air extraction mechanism, making the inside of the dust suction hood a negative pressure environment, accelerating the treatment speed of the dust generated during the smelting of non-ferrous metals, and improving the practicability of the device.

[0007] As a further solution of the present utility model, the lifting mechanism includes an electric slide table, the electric slide table is fixed to one side of the top of the base, a support plate is fixed to the moving end of the electric slide table, one end of the bottom of the support plate is fixed with a connecting column, and the connecting column is fixed to the dust suction hood. When the electric slide table works, the dust suction hood is driven to move up and down through the support plate and the connecting column, which is convenient for slag skimming or feeding of the electric furnace body.

[0008] As a further solution of the present utility model, the sealing mechanism includes a first annular airbag and a second annular airbag. The first annular airbag and the second annular airbag are both fixed inside the annular card slot. A plurality of branch pipes are equidistantly fixed to the outer side wall of the first annular airbag, and one end of each of the plurality of branch pipes communicates with the second annular airbag. Sleeves are fixed to both ends of the top of the base. Pistons are slidably connected to the inner side walls of the two sleeves. Connecting rods are fixed to the tops of the two pistons, and one ends of the two connecting rods respectively penetrate through the tops of the two sleeves. Connecting pipes are fixed to the bottoms of the side walls of the two sleeves. One end of each of the two connecting pipes communicates with the two sleeves respectively, and the other ends of the two connecting pipes both communicate with the first annular airbag. Connecting plates are fixed to the tops of the two connecting rods, and the two connecting plates are both fixed to the dust suction hood. When the dust suction hood descends, the two connecting rods are driven to move downward by cooperating with the two connecting plates, so that the two pistons respectively move downward along the inner side walls of the two sleeves, and the gas in the two sleeves is filled into the first annular airbag through the two connecting pipes. A part of the gas enters the second annular airbag through the plurality of branch pipes. At this time, the first annular airbag and the second annular airbag expand and deform, and the sealing work of the electric furnace body and the dust suction hood can be completed, preventing a large amount of dust generated during the smelting of non-ferrous metals from overflowing, avoiding polluting the working environment of the workshop, with simple operation, time saving, and improved work efficiency.

[0009] As a further solution of the present utility model, the filtering mechanism includes a plurality of annular sleeves, the plurality of annular sleeves are all fixed to the inner side wall of the dust suction hood, and filter layers are fixed to the inner side walls of the plurality of annular sleeves. The air extraction mechanism includes an air extraction pump, the air extraction pump is fixed to the top of the dust suction hood, an air outlet of the air extraction pump is fixed with a hose, and one end of the hose communicates with the dust suction hood. The air extraction pump is driven to extract the air in the dust suction hood through the hose, so that the inside of the dust suction hood is in a negative pressure environment. At this time, the dust in the electric furnace body will quickly enter the dust suction hood through the round holes and is filtered by the plurality of filter layers and then discharged outside the dust suction hood, improving the practicability of the device.

[0010] The beneficial effects of the present utility model are:

[0011] 1. During the use of this device, the dust suction hood is lifted and lowered through the lifting mechanism. When the annular plate and the annular clamping block enter the internal of the annular clamping groove, the installation of the dust suction hood can be completed, and the dust suction hood is sealed in cooperation with the sealing mechanism. The operation is simple, saving a lot of time and improving work efficiency.

[0012] 2. The air in the dust suction hood is pumped out through the air extraction mechanism, making the inside of the dust suction hood a negative pressure environment, accelerating the treatment speed of the dust generated during the smelting of non-ferrous metals, and improving the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic structural diagram of an electric furnace dust removal hood for non-ferrous metal smelting proposed by the present utility model;

[0014] Figure 2 is a schematic cross-sectional view of the dust suction hood of an electric furnace dust removal hood for non-ferrous metal smelting proposed by the present utility model;

[0015] Figure 3 is an expanded schematic cross-sectional view of the dust suction hood and the annular seat of an electric furnace dust removal hood for non-ferrous metal smelting proposed by the present utility model;

[0016] Figure 4 is a schematic cross-sectional view of the sleeve of an electric furnace dust removal hood for non-ferrous metal smelting proposed by the present utility model.

[0017] In the figure: 1, base; 2, electric furnace body; 3, electric sliding table; 4, support plate; 5, connecting column; 6, dust suction hood; 7, connecting plate; 8, sleeve; 9, connecting rod; 10, connecting pipe; 11, first annular airbag; 12, second annular airbag; 13, branch pipe; 14, air extraction pump; 15, hose; 16, annular sleeve; 17, filter layer; 18, annular plate; 19, annular clamping block; 20, annular seat; 21, annular clamping groove; 22, piston. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0019] Refer to Figures 1 - 4, An electric furnace dust removal hood for non-ferrous metal smelting, comprising a base 1. In the middle of the top of the base 1, an electric furnace body 2 is fixed. A round hole is opened at the top of the electric furnace body 2. A dust suction hood 6 is arranged at the top of the electric furnace body 2. A lifting mechanism for lifting the dust suction hood 6 is provided on the top of the base 1. A circular plate 18 is fixed to the bottom of the dust suction hood 6, and a circular clamping block 19 is fixed to the bottom of the circular plate 18. A circular seat 20 is sleeved on the side wall of the electric furnace body 2, and a circular card slot 21 is opened at the top of the circular seat 20. A sealing mechanism for sealing the dust suction hood 6 is provided on the side wall of the electric furnace body 2. A filtering mechanism is arranged inside the dust suction hood 6, and an air extraction mechanism is arranged at the top of the dust suction hood 6. During the use of this device, the dust suction hood 6 is lifted and lowered by the lifting mechanism, and the dust suction hood 6 is sealed in cooperation with the sealing mechanism. The operation is simple, saving a lot of time, improving work efficiency, and the air in the dust suction hood 6 is extracted by the air extraction mechanism, making the inside of the dust suction hood 6 a negative pressure environment, accelerating the treatment speed of the dust generated during the smelting of non-ferrous metals, and improving the practicability of the device.

[0020] Refer to Figure 1 , In a preferred embodiment, the lifting mechanism includes an electric slide table 3. The electric slide table 3 is fixed to one side of the top of the base 1. A support plate 4 is fixed to the moving end of the electric slide table 3. One end of the bottom of the support plate 4 is fixed with a connecting column 5, and the connecting column 5 is fixed to the dust suction hood 6. When the electric slide table 3 works, the dust suction hood 6 is driven to move up and down through the support plate 4 and the connecting column 5, which is convenient for slag skimming or feeding of the electric furnace body 2.

[0021] Refer to Figure 3 and Figure 4, in a preferred embodiment, the sealing mechanism includes a first annular airbag 11 and a second annular airbag 12. Both the first annular airbag 11 and the second annular airbag 12 are fixed inside the annular card slot 21. A plurality of branch pipes 13 are fixedly arranged at equal intervals on the outer side wall of the first annular airbag 11, and one ends of the plurality of branch pipes 13 are all communicated with the second annular airbag 12. Both ends of the top of the base 1 are fixedly provided with sleeves 8. The inner side walls of the two sleeves 8 are both slidably connected with pistons 22. The tops of the two pistons 22 are both fixedly provided with connecting rods 9, and one ends of the two connecting rods 9 respectively penetrate through the tops of the two sleeves 8. The bottoms of the side walls of the two sleeves 8 are both fixedly provided with connecting pipes 10. One ends of the two connecting pipes 10 are respectively communicated with the two sleeves 8, and the other ends of the two connecting pipes 10 are both communicated with the first annular airbag 11. The tops of the two connecting rods 9 are both fixedly provided with connecting plates 7, and both the two connecting plates 7 are fixedly connected with the dust suction hood 6. When the dust suction hood 6 descends, the two connecting rods 9 are driven to move downward in cooperation with the two connecting plates 7, so that the two pistons 22 respectively move downward along the inner side walls of the two sleeves 8, and the gas in the two sleeves 8 is filled into the first annular airbag 11 through the two connecting pipes 10. A part of the gas enters the second annular airbag 12 through the plurality of branch pipes 13. At this time, the first annular airbag 11 and the second annular airbag 12 expand and deform, and the sealing work of the electric furnace body 2 and the dust suction hood 6 can be completed, preventing a large amount of dust generated during the smelting of non-ferrous metals from overflowing, avoiding polluting the working environment of the workshop, with simple operation, time saving, and improved work efficiency.

[0022] Referring to Figure 2 and Figure 3 , in a preferred embodiment, the filtering mechanism includes a plurality of annular sleeves 16. The plurality of annular sleeves 16 are all fixed on the inner side wall of the dust suction hood 6. Filter layers 17 are fixed on the inner side walls of the plurality of annular sleeves 16. The air extraction mechanism includes an air extraction pump 14. The air extraction pump 14 is fixed on the top of the dust suction hood 6. An air outlet of the air extraction pump 14 is fixedly provided with a hose 15, and one end of the hose 15 is communicated with the dust suction hood 6. The air extraction pump 14 is driven to extract the air in the dust suction hood 6 through the hose 15, so that a negative pressure environment is formed inside the dust suction hood 6. At this time, the dust in the electric furnace body 2 will quickly enter the dust suction hood 6 through the round holes, and is filtered by the plurality of filter layers 17 and then discharged outside the dust suction hood 6, improving the practicability of the device.

[0023] Working principle of this embodiment: During the use of this device, non-ferrous metals are put into the electric furnace body 2 through the round holes for smelting. After the putting is completed, the power switch of the electric sliding table 3 is turned on. When the electric sliding table 3 works, it drives the dust suction hood 6 to move downward through the support plate 4 and the connecting column 5, and then drives the annular plate 18 and the annular clamping block 19 to move downward and approach the electric furnace body 2. When the annular plate 18 enters the internal of the annular clamping groove 21, the installation of the dust suction hood 6 is completed. At this time, the annular clamping block 19 is located between the first annular airbag 11 and the second annular airbag 12. When the dust suction hood 6 is descending, it drives the two connecting rods 9 to move downward in cooperation with the two connecting plates 7, and then drives the two pistons 22 to move downward along the inner walls of the two sleeves 8 respectively, and fills the gas in the two sleeves 8 into the first annular airbag 11 through the two connecting pipes 10. A part of the gas enters the second annular airbag 12 through the multiple branch pipes 13. At this time, the first annular airbag 11 and the second annular airbag 12 expand and deform, and the sealing work of the electric furnace body 2 and the dust suction hood 6 can be completed, preventing a large amount of dust generated during the smelting of non-ferrous metals from overflowing, avoiding polluting the working environment of the workshop, with simple operation, time saving, improving work efficiency, and facilitating the later slag skimming and feeding work of the electric furnace body 2. During the smelting process, the power switch of the air extraction pump 14 is turned on, and the air extraction pump 14 is driven to extract the air in the dust suction hood 6 through the hose 15, making the inside of the dust suction hood 6 a negative pressure environment. At this time, the dust in the electric furnace body 2 will quickly enter the dust suction hood 6 through the round holes, and is filtered by the multiple filter layers 17 and then discharged outside the dust suction hood 6, improving the practicability of this device.

[0024] For the sake of convenience of description, spatial relative terms such as "above...", "over...", "on the upper surface of...", "upper" etc. can be used here to describe the spatial position relationship between a device or feature shown in the figure and other devices or features. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation described in the figure of the device. For example, if the device in the figure is inverted, the device described as "above other devices or structures" or "over other devices or structures" will be positioned as "below other devices or structures" or "under other devices or structures" afterwards. Thus, the exemplary term "above..." can include both the orientation of "above..." and "below...". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the corresponding explanations are made for the spatial relative descriptions used here.

[0025] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should also be understood that when the terms "comprise" and / or "include" are used in this specification, they specify the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0026] It should be noted that the terms "first", "second", etc. in the specification, claims and above-mentioned drawings of the present application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "comprise" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units need not be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0027] The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. For those skilled in the art, the present utility model can have various changes and modifications. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A dust removal hood for an electric furnace for non-ferrous metal smelting, comprising a base (1), characterized in that: An electric furnace body (2) is fixed at the middle of the top of the base (1), a circular hole is provided at the top of the electric furnace body (2), a dust hood (6) is arranged at the top of the electric furnace body (2), a lifting mechanism for lifting the dust hood (6) is provided at the top of the base (1), an annular plate (18) is fixed at the bottom of the dust hood (6), an annular clamping block (19) is fixed at the bottom of the annular plate (18), an annular seat (20) is sleeved on the side wall of the electric furnace body (2), an annular clamping groove (21) is provided at the top of the annular seat (20), a sealing mechanism for sealing the dust hood (6) is provided on the side wall of the electric furnace body (2), a filtering mechanism is provided inside the dust hood (6), and an exhaust mechanism is provided at the top of the dust hood (6).

2. The electric furnace dust removal hood for non-ferrous metal smelting according to claim 1, characterized in that: The lifting mechanism comprises an electric slide (3), the electric slide (3) being fixed to one side of the top of the base (1), a support plate (4) being fixed to the movable end of the electric slide (3), a connecting column (5) being fixed to one end of the bottom of the support plate (4), and the connecting column (5) and the dust cover (6) being fixed.

3. The dust removal hood for electric furnace for non-ferrous metal smelting according to claim 1, characterized in that: The sealing mechanism comprises a first annular airbag (11) and a second annular airbag (12), the first annular airbag (11) and the second annular airbag (12) are both fixed inside the annular groove (21), a plurality of branch pipes (13) are fixed at equal distances on the outer side wall of the first annular airbag (11), and one end of the plurality of branch pipes (13) are all connected to the second annular airbag (12).

4. The dust removal hood for electric furnace for non-ferrous metal smelting according to claim 3, characterized in that: Sleeves (8) are fixed at both ends of the top of the base (1), pistons (22) are slidably connected to the inner walls of the two sleeves (8), connecting rods (9) are fixed to the tops of the two pistons (22), and one end of the two connecting rods (9) passes through the tops of the two sleeves (8), respectively. Connecting pipes (10) are fixed to the bottoms of the side walls of the two sleeves (8), one end of the two connecting pipes (10) is connected to the two sleeves (8), respectively, and the other end of the two connecting pipes (10) is connected to the first annular airbag (11), and connecting plates (7) are fixed to the tops of the two connecting rods (9), and the two connecting plates (7) are fixed to the dust hood (6).

5. The dust removal hood for electric furnace for nonferrous metal smelting according to claim 1, characterized in that: The filtering mechanism comprises a plurality of annular sleeves (16), the plurality of annular sleeves (16) are all fixed to the inner side wall of the dust collection hood (6), and the inner side walls of the plurality of annular sleeves (16) are all fixed with filtering layers (17).

6. The dust removal hood for electric furnace for nonferrous metal smelting according to claim 1, characterized in that: The air extraction mechanism comprises an air extraction pump (14), the air extraction pump (14) being fixed to the top of the dust hood (6), a hose (15) being fixed to the air outlet of the air extraction pump (14), and one end of the hose (15) being connected to the dust hood (6).

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