Degassing and impurity removing device for zinc alloy smelting

Abstract

The utility model relates to a degassing and impurity-removing device for zinc alloy smelting. The degassing and impurity-removing device comprises a rack, a rotating piece, a sliding piece, a stirring piece, a driving mechanism and a ventilation mechanism, the rotating part is rotatably mounted on the rack; the sliding piece is in sliding insertion connection with the rotating piece in the axis direction of the rotating piece. The stirring part is mounted at one end of the sliding part, and a ventilation cavity and an agent storage cavity are formed in the stirring part; a plurality of through holes are uniformly formed outside the stirring part, so that the ventilation cavity and the agent storage cavity are communicated with the outer side; the driving mechanism drives the rotating part to rotate and drives the sliding part to reciprocate in the length direction; and the ventilation mechanism introduces nitrogen into the ventilation cavity. The driving mechanism drives the stirring part to rotate and the sliding part to slide, so that the stirring part can be used for spatially stirring the zinc alloy liquid, and the stirring efficiency of the zinc alloy liquid is improved; and the contact range of the zinc fluxing medium is wider, and the nitrogen introduction position is more complete, so that the degassing and impurity removal efficiency of the zinc alloy liquid is improved.

Description

Technical Field

[0001] This utility model relates to the field of degassing and impurity removal technology in zinc alloy smelting, and specifically to a degassing and impurity removal device for zinc alloy smelting. Background Technology

[0002] During the smelting of zinc alloys, metallic elements such as zinc, aluminum, and copper interact with atmospheric oxygen, nitrogen, hydrogen, and water molecules. Interactions also occur between the molten zinc alloy and the crucible, resulting in gas absorption and the formation of numerous inclusions. Severe gas absorption during smelting can lead to porosity or pinhole defects in the casting, severely impacting its internal quality. Inclusions formed during smelting either float on the surface, are mixed into the melt, or sink to the bottom. Failure to remove these inclusions will result in excessive pinholes and inclusions in the casting, degrading its appearance and reducing the alloy's mechanical properties. Therefore, degassing and impurity removal are crucial in zinc alloy smelting, and the quality of the equipment and processes used directly determines the final high-quality zinc alloy casting.

[0003] Currently, in the zinc alloy smelting process, the bell jar method is generally used to press the slag remover into the zinc alloy liquid to remove various gases and inclusions present in the zinc alloy liquid. Alternatively, a zinc alloy degassing and impurity removal device can be used; for example, patent CN218349244U discloses a high-efficiency degassing and slag removal device for zinc alloy smelting, including a fixed plate, a stirring rod, a drive motor, an air inlet pipe, an exhaust head, and a perforated sleeve. The stirring rod passes through the fixed plate and is connected to it, and the drive motor is fixedly connected to the fixed plate. This invention uses the drive motor to drive the stirring rod to rotate, allowing nitrogen gas to be introduced into the exhaust head through the air inlet pipe. The nitrogen gas enters the zinc alloy liquid through the exhaust hole in the exhaust head. The high-speed rotating exhaust head has a stirring effect, thus ensuring that the nitrogen gas is evenly distributed in the zinc alloy liquid. The nitrogen gas rises and carries away impurities in the zinc alloy liquid. Simultaneously, the perforated sleeve rotates with the stirring rod, placing the zinc slag remover into the perforated sleeve, accelerating the reaction between the zinc slag remover and the zinc alloy liquid, resulting in high slag removal efficiency.

[0004] However, this device can only introduce nitrogen gas into the zinc alloy liquid at the position plane of the stirring rod, and the zinc alloy liquid at the position plane reacts with the zinc slag remover, resulting in low degassing and impurity removal efficiency. Utility Model Content

[0005] In view of the above-mentioned problems in the existing technology, the technical problem to be solved by this utility model is that the existing degassing and impurity removal device can only introduce nitrogen into the zinc alloy liquid at the position plane of the stirring rod and react with the zinc slagging agent at the position plane, resulting in low degassing and impurity removal efficiency.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a degassing and impurity removal device for zinc alloy smelting, comprising:

[0007] frame;

[0008] A rotating component, which is rotatably mounted on the frame;

[0009] A sliding member, which is slidably inserted into the rotating member along the axial direction of the rotating member;

[0010] A stirring component is installed at one end of the sliding component, and the stirring component has a venting chamber and a storage chamber inside; a plurality of through holes are evenly provided on the outside of the stirring component so that the venting chamber and the storage chamber communicate with the outside.

[0011] A driving mechanism that drives the rotating member to rotate and drives the sliding member to reciprocate in the length direction; and

[0012] A ventilation mechanism that introduces nitrogen gas into the ventilation chamber.

[0013] Preferably, the rotating component includes: a rotating column and limiting components; the rotating column is rotatably mounted on the frame; a circular hole is coaxially formed on the rotating column for the sliding component to pass through; a plurality of limiting components are installed in the circular hole, and the plurality of limiting components are evenly spaced along the circumferential direction of the rotating component; a plurality of limiting grooves corresponding one-to-one with the limiting components are formed in the circumferential direction of the sliding component; the plurality of limiting grooves are arranged along the length direction of the sliding component, and the limiting grooves slide in cooperation with the limiting components.

[0014] Preferably, the limiting member is a roller, which is rotatably mounted on the rotating column. The axes of the roller and the rotating column are perpendicular to each other, and the roller extends into the limiting groove and abuts against the limiting groove.

[0015] Preferably, the stirring component includes: a shell, a cover, and a partition plate; one end of the shell is open, and the cover is detachably mounted on the shell to close the opening of the shell; the partition plate is fixedly mounted inside the shell to divide the shell into a venting chamber and a storage chamber.

[0016] Preferably, the driving mechanism includes: a reciprocating screw, a gear ring, a gear, a nut, a connecting plate, and a motor; the reciprocating screw and the sliding member are arranged parallel to each other, and the reciprocating screw is rotatably mounted on the frame; the gear ring is coaxially fixed on the rotating member; the gear is coaxially fixed with the reciprocating screw, and the gear meshes with the gear ring; the nut is threadedly connected to the reciprocating screw; the connecting plate is fixedly mounted on the nut, and one end of the sliding member is rotatably mounted on the connecting plate; the motor drives the reciprocating screw to rotate.

[0017] Preferably, the ventilation mechanism includes an air pump and a pipe; a gas channel is provided along the length of the sliding member, and one end of the gas channel is connected to the ventilation chamber, and the other end of the gas channel is connected to the pipe; the air pump is installed on the pipe.

[0018] Compared with the prior art, the present invention has at least the following advantages:

[0019] 1. In this invention, the zinc slag remover contacts the molten zinc alloy through the through-holes on the agitator, thereby reacting with the molten zinc alloy to improve the slag removal rate. Nitrogen gas is introduced into the ventilation chamber through a ventilation mechanism, allowing it to be discharged into the molten zinc alloy through the through-holes on the agitator. As an inert gas, nitrogen, after being introduced into the melt, carries away gases such as hydrogen through physical stirring, reducing porosity defects and improving the density of the casting. This achieves degassing and impurity removal from the molten zinc alloy. Furthermore, the drive mechanism controls the rotation of the rotating component, which in turn drives the sliding component, which in turn drives the agitator to rotate. The drive mechanism also drives the sliding component to slide, thus moving the agitator along its length. In this way, the agitator can spatially stir the molten zinc alloy, improving the stirring efficiency. The zinc slag remover has a wider contact range, and nitrogen gas is introduced into more complete locations, further improving the degassing and impurity removal efficiency of the molten zinc alloy.

[0020] 2. In this utility model, the motor drives the reciprocating screw to rotate, and the reciprocating screw drives the nut to move back and forth in the length direction of the reciprocating screw, thereby driving the sliding member to slide back and forth through the connecting plate; and the reciprocating screw drives the gear to rotate, the gear drives the gear ring meshing with it to rotate, the gear ring drives the rotating member to rotate, and the rotating member can then drive the sliding member to rotate; thus, the rotating member can be driven to rotate, and the sliding member can be driven to move back and forth in the length direction. Attached Figure Description

[0021] To more clearly illustrate the specific embodiments of this utility model, the accompanying drawings used in the specific embodiments will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to scale.

[0022] Figure 1 This is a perspective view of a zinc alloy smelting degassing and impurity removal device provided in this embodiment.

[0023] Figure 2 This is a cross-sectional view of the rotating and sliding components provided in this embodiment.

[0024] Figure 3 This is a perspective view of the rotating component provided in this embodiment.

[0025] Figure 4This is a cross-sectional view of the stirring component provided in this embodiment.

[0026] Reference numerals: 1. Frame; 2. Rotating component; 21. Rotating column; 22. Circular hole; 23. Roller; 3. Sliding component; 31. Limiting groove; 32. Gas passage; 4. Stirring component; 41. Ventilation chamber; 42. Storage chamber; 43. Through hole; 44. Shell; 45. Cover; 46. Divider plate; 5. Drive mechanism; 51. Reciprocating screw; 52. Gear ring; 53. Gear; 54. Nut; 55. Connecting plate; 56. Motor; 6. Pipeline. Detailed Implementation

[0027] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0028] See Figures 1-4 The present invention provides an embodiment of a zinc alloy smelting degassing and impurity removal device, comprising: a frame 1, a rotating component 2, a sliding component 3, a stirring component 4, a driving mechanism 5, and a ventilation mechanism; the rotating component 2 is rotatably mounted on the frame 1; the sliding component 3 is slidably inserted into the rotating component 2 along the axial direction of the rotating component 2; the stirring component 4 is mounted on one end of the sliding component 3, and a ventilation chamber 41 and a storage chamber 42 are provided inside the stirring component 4; a plurality of through holes 43 are evenly provided outside the stirring component 4 to communicate with the outside of the ventilation chamber 41 and the storage chamber 42; the driving mechanism 5 drives the rotating component 2 to rotate and drives the sliding component 3 to reciprocate in the length direction; the ventilation mechanism introduces nitrogen gas into the ventilation chamber 41.

[0029] In practice, the storage chamber 42 contains a zinc slag remover. The zinc slag remover comes into contact with the molten zinc alloy through the through-hole 43 on the agitator 4, thereby reacting with the molten zinc alloy to improve the slag removal rate. Nitrogen gas is introduced into the ventilation chamber 41 through the ventilation mechanism, and then discharged into the molten zinc alloy through the through-hole 43 on the agitator 4. As an inert gas, nitrogen gas, after being introduced into the melt, can carry away gases such as hydrogen through physical stirring, reducing porosity defects and improving the density of the casting. This achieves the degassing and impurity removal of the molten zinc alloy. Furthermore, the drive mechanism 5 controls the operation of the rotating part 2, which in turn drives the sliding part 3 to rotate, thereby driving the stirring part 4 to rotate. The drive mechanism 5 also drives the sliding part 3 to slide, which in turn drives the stirring part 4 to move along the length of the sliding part 3. In this way, the stirring part 4 can stir the zinc alloy liquid in space to improve the stirring efficiency of the zinc alloy liquid. Moreover, the zinc slag remover has a wider contact range and the nitrogen gas can be introduced into more places, thereby improving the degassing and impurity removal efficiency of the zinc alloy liquid.

[0030] Furthermore, a scraper is provided at one end of the rotating component 2 near the stirring component 4. One end of the scraper is fixedly connected to the rotating component 2, and the other end of the scraper abuts against the sliding component 3. This allows the scraper to effectively scrape off the residual zinc alloy liquid on the sliding component 3 when it moves.

[0031] See Figures 1-4 In other embodiments, the rotating component 2 includes a rotating column 21 and limiting components. The rotating column 21 is rotatably mounted on the frame 1. A circular hole 22 is coaxially formed on the rotating column 21 for the sliding component 3 to pass through. Multiple limiting components are installed in the circular hole 22 and are evenly spaced along the circumferential direction of the rotating component 2. Multiple limiting grooves 31, corresponding one-to-one with the limiting components, are formed in the circumferential direction of the sliding component 3. The multiple limiting grooves 31 are arranged along the length direction of the sliding component 3 and slide in cooperation with the limiting components. In specific implementation, the driving mechanism 5 drives the rotating column 21 to rotate. By setting the limiting components to slide in the limiting grooves 31, the sliding component 3 can only slide in the axial direction of the rotating column 21 and cannot rotate in the circumferential direction of the rotating column 21.

[0032] Furthermore, the limiting component is a roller 23, which is rotatably mounted on the rotating column 21. The axes of the roller 23 and the rotating column 21 are perpendicular to each other, and the roller 23 extends into the limiting groove 31 and abuts against the limiting groove 31. By setting the roller 23, not only can the rotation of the sliding member 3 in the circumferential direction of the rotating column 21 be restricted, but the sliding member 3 can also drive the roller 23 to rotate when sliding, thereby reducing the friction on the sliding member 3.

[0033] See Figures 1-4 In other embodiments, the agitator 4 includes: a housing 44, a cover 45, and a partition plate 46; one end of the housing 44 is open, and the cover 45 is detachably mounted on the housing 44 to close the opening of the housing 44; the partition plate 46 is fixedly mounted inside the housing 44 to divide the housing 44 into a venting chamber 41 and a storage chamber 42. In specific implementations, multiple through holes 43 are formed on the housing 44; by removing and installing the cover 45, the zinc slag remover in the storage chamber 42 can be replaced; the partition plate facilitates the processing of the agitator 4 and reduces the processing difficulty of the agitator 4.

[0034] See Figures 1-4In other embodiments, the drive mechanism 5 includes: a reciprocating screw 51, a gear ring 52, a gear 53, a nut 54, a connecting plate 55, and a motor 56; the reciprocating screw 51 and the sliding member 3 are arranged parallel to each other, and the reciprocating screw 51 is rotatably mounted on the frame 1; the gear ring 52 is coaxially fixed on the rotating member 2; the gear 53 is coaxially fixed with the reciprocating screw 51, and the gear 53 meshes with the gear ring 52; the nut 54 is threadedly connected to the reciprocating screw 51; the connecting plate 55 is fixedly mounted on the nut 54, and one end of the sliding member 3 is rotatably mounted on the connecting plate 55; the motor 56 drives the reciprocating screw 51 to rotate.

[0035] In practice, the motor 56 is controlled to rotate, which drives the reciprocating screw 51 to rotate. The reciprocating screw 51 drives the nut 54 to move back and forth along the length of the reciprocating screw 51, thereby driving the sliding member 3 to slide back and forth through the connecting plate 55. The reciprocating screw 51 also drives the gear 53 to rotate, which drives the gear ring 52 that meshes with it to rotate. The gear ring 52 drives the rotating member 2 to rotate, and the rotating member 2 can then drive the sliding member 3 to rotate. In this way, the rotating member 2 can be driven to rotate, and the sliding member 3 can be driven to move back and forth along the length.

[0036] See Figures 1-4 In another embodiment, the ventilation mechanism includes an air pump and a pipe 6; a gas channel 32 is provided along the length of the sliding member 3, with one end of the gas channel 32 connected to the ventilation chamber 41 and the other end connected to the pipe 6; the air pump is mounted on the pipe 6. In specific implementation, the air pump is controlled to operate, and the air pump draws nitrogen gas into the gas channel 32 through the pipe 6, so that the gas channel 32 can discharge the nitrogen gas into the ventilation chamber 41 and discharge the nitrogen gas into the zinc alloy liquid through the through hole 43.

[0037] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A device for melting and degassing and impurity removal of zinc alloy, characterized in that, The utility model relates to a nitrogen gas injection device for a liquid medicine injection device, which comprises a frame, a rotating member rotatably mounted on the frame, a sliding member slidingly inserted into the rotating member along the axial direction of the rotating member, a stirring member mounted on one end of the sliding member, the stirring member having a ventilation cavity and a storage cavity, a plurality of through holes uniformly distributed on the outer surface of the stirring member to allow the ventilation cavity and the storage cavity to communicate with the outside, a driving mechanism for driving the rotating member to rotate and driving the sliding member to reciprocate along the length direction, and a ventilation mechanism for introducing nitrogen gas into the ventilation cavity. The rotating member comprises a rotating column and a limiting member, the rotating column is rotatably mounted on the frame, a circular hole is coaxially formed on the rotating column for the sliding member to pass through, a plurality of limiting members are mounted in the circular hole and are uniformly spaced along the circumferential direction of the rotating member, a plurality of limiting grooves corresponding to the limiting members are formed on the sliding member along the circumferential direction, and the limiting grooves are slidingly matched with the limiting members along the length direction of the sliding member. The limiting member is a roller rotatably mounted on the rotating column, the axis of the roller is perpendicular to the axis of the rotating column, and the roller extends into the limiting groove and abuts against the limiting groove. The stirring member comprises a shell, a cover and a partition plate, one end of the shell is open, the cover is detachably mounted on the shell to close the opening of the shell, and the partition plate is fixedly mounted in the shell to divide the shell into the ventilation cavity and the storage cavity. The driving mechanism comprises a reciprocating screw, a gear ring, a gear, a nut, a connecting plate and a motor, the reciprocating screw is parallel to the sliding member and is rotatably mounted on the frame, the gear ring is coaxially fixed on the rotating member, the gear is coaxially fixed on the reciprocating screw and is engaged with the gear ring, the nut is threadedly connected with the reciprocating screw, the connecting plate is fixedly mounted on the nut, one end of the sliding member is rotatably mounted on the connecting plate, and the motor drives the reciprocating screw to rotate. The ventilation mechanism comprises a gas pump and a pipeline, a gas passage is formed on the length direction of the sliding member, one end of the gas passage communicates with the ventilation cavity, the other end of the gas passage communicates with the pipeline, and the gas pump is mounted on the pipeline. ​ ​ 2. The device for melting and degassing and removing impurities of zinc alloy according to claim 1, characterized in that, ​ 3. The device for melting and degassing and removing impurities of zinc alloy according to claim 2, characterized in that, ​ 4. The device for melting and degassing and removing inclusions of a zinc alloy according to claim 1, characterized in that, ​ 5. The device for melting and degassing and removing inclusions of zinc alloy according to claim 1, characterized in that, ​ 6. The device for melting and degassing and removing inclusions of zinc alloy according to claim 1, characterized in that, ​

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