Non-ferrous metal smelting slag discharging assembly

Abstract

The invention discloses a non-ferrous metal smelting slag discharging assembly, belongs to the technical field of non-ferrous metal smelting equipment, and aims to solve the problems that in the prior art, the slag flow is difficult to accurately control, and overhaul and disassembly are difficult. A transmission assembly serves as the core, a hydraulic cylinder drives a rack plate to move and drives a gear meshed with the rack plate to rotate, then an adjusting plate coaxially connected with the rack plate is driven to rotate, and stepless accurate adjustment of the slag flow is achieved by changing the overlapping area of fan-shaped adjusting holes in the adjusting plate and fan-shaped flow guide holes in a flow guide plate. By accurately adjusting the flow, slag overflow and flow cutoff are effectively avoided, the production stability is improved, the maintenance process is remarkably simplified through a quick release structure, the downtime is shortened, the working efficiency is improved, and the internal structure can be effectively protected through a force feedback mechanism.

Description

Technical Field

[0001] This invention relates to the field of non-ferrous metal smelting equipment technology, and in particular to a slag discharge component for non-ferrous metal smelting. Background Technology

[0002] In the pyrometallurgical smelting of non-ferrous metals, such as copper and nickel, a large amount of high-temperature molten slag is generated as a byproduct. This slag needs to be discharged from the smelting furnace in a timely and stable manner for subsequent water quenching and granulation or slow cooling treatment. Therefore, the slag discharge assembly, as a key piece of equipment connecting the furnace and subsequent processing steps, directly affects the smoothness and safety of the entire smelting process.

[0003] Currently, the slag discharge outlets commonly used in smelting furnaces have relatively simple structures, mostly consisting of refractory material channels with fixed apertures, or equipped with simple manual gates for rudimentary opening and closing control. Operators rely on experience to judge the slag condition and manually control the start and stop of slag discharge.

[0004] However, in actual production, the physical properties of slag are not constant. With fluctuations in furnace temperature and changes in chemical composition, the viscosity of the slag also changes significantly. For the aforementioned simple discharge port, when the slag viscosity decreases, its fluidity increases, and the flow rate through the fixed orifice increases sharply, easily causing slag overflow in the downstream slag bag or overloading of the conveying device. Conversely, when the slag viscosity increases, its fluidity decreases, the flow rate decreases, and even the conveying flow may be interrupted, leading to slag solidification and blockage of the channel. Existing manual gate valves can only achieve rough adjustment of the large opening, making it difficult to achieve precise and continuous flow matching based on real-time changes in slag viscosity.

[0005] Therefore, existing slag discharge components lack precise and continuous flow regulation capabilities, making it difficult to adapt to dynamic changes in the physical properties of slag. This leads to unstable discharge processes, which can easily cause safety accidents and production interruptions. To address these shortcomings, this invention proposes a slag discharge component for non-ferrous metal smelting to overcome the deficiencies of existing technologies. Summary of the Invention

[0006] In view of the problems existing in the non-ferrous metal smelting slag discharge components, such as slag overflow or flow interruption due to lack of precise flow regulation capability, and the difficulty and low efficiency of disassembly and maintenance of the overall structure under high temperature conditions, the present invention aims to provide a non-ferrous metal smelting slag discharge component with an improved structure that can effectively solve the above problems.

[0007] This invention provides a slag discharge assembly for non-ferrous metal smelting, comprising: a furnace body, a cylinder, an adjustment mechanism, and a quick-release mechanism. The adjustment mechanism and the quick-release mechanism are installed at the bottom of the furnace body. The cylinder is detachably connected to the bottom of the furnace body via the quick-release mechanism. The adjustment mechanism is disposed inside the cylinder. The adjustment mechanism includes a protective shell fixedly connected to the bottom of the furnace body, a guide plate fixed below the protective shell via the cylinder, and an adjustment plate rotatably fitted above the guide plate. The adjustment mechanism also includes a connecting block and a transmission assembly. The transmission assembly includes a hydraulic cylinder fixed to the protective shell via the connecting block, a telescopic rod driven by the hydraulic cylinder to extend and retract axially, a rack plate connected to the end of the telescopic rod, a fixedly mounted central shaft, and a gear rotatably sleeved on the surface of the central shaft. The rack plate meshes with the gear, and the adjustment plate is coaxially fixedly connected to the gear. The hydraulic cylinder drives the rack plate to move, thereby driving the gear and the adjustment plate to rotate, thereby changing the overlapping area of ​​the fan-shaped adjustment hole and the fan-shaped guide hole.

[0008] Preferably, the adjustment mechanism further includes a limiting block and a support rod disposed inside the protective shell. The limiting block and the support rod are fixedly connected to the inner wall of the protective shell, and the support rod is fixedly connected to the non-moving part of the transmission assembly to provide support.

[0009] Preferably, a slot is formed on the side wall of the cylinder adjacent to the gear. A portion of the gear or the adjusting plate passes through the slot to achieve a transmission connection. The slot extends along the rotation direction of the adjusting plate to provide operating space for its rotation. The adjusting mechanism also includes a first sealing ring and a second sealing ring. The first sealing ring is disposed on the upper surface of the adjusting plate, and the second sealing ring is disposed on the lower surface of the guide plate. The first and second sealing rings are used to seal the mating gap between the adjusting plate and the guide plate to prevent high-temperature slag from leaking between the two plates.

[0010] Preferably, the quick-release mechanism includes a connecting seat fixedly installed at the bottom of the furnace body, and a plurality of buckles disposed inside the connecting seat, the buckles being spaced apart circumferentially along the inner circumferential wall of the connecting seat. The quick-release mechanism also includes a connecting ring fixedly connected to the top of the cylinder, the outer circumferential surface of which has an L-shaped groove adapted to the buckles, providing a basis for quick locking and disassembly. When the connecting ring is inserted into the connecting seat and rotated to the locked position, the buckles engage in the transverse groove of the L-shaped groove to achieve axial locking. When the connecting ring rotates in the opposite direction, the buckles disengage from the L-shaped groove to disassemble the cylinder. Through the mechanical limiting action of the buckles and the groove wall, reliable axial locking and quick disassembly between the cylinder and the furnace body are achieved.

[0011] Preferably, the hydraulic cylinder is equipped with a pressure sensor and a control unit to monitor the resistance feedback during the driving process. When the resistance exceeds a preset threshold, the hydraulic cylinder is controlled to perform fine-tuning actions to prevent structural jamming.

[0012] The present invention has the following beneficial effects: 1. This invention, by setting up an adjustment mechanism consisting of a rack and pinion driven by a hydraulic cylinder and an adjustment plate with fan-shaped adjustment holes, converts linear telescopic motion into rotational motion of the adjustment plate. By utilizing the change in the overlapping area of ​​the fan-shaped holes between the adjustment plate and the guide plate, the slag flow cross section is controlled. This solves the problems of existing slag discharge ports, which are mostly fixed in diameter or simply manually adjusted, resulting in low adjustment accuracy and difficulty in adapting to changes in slag viscosity, leading to slag overflow or flow interruption. It achieves the technical effect of stepless and precise adjustment of slag discharge flow, ensuring uniform subsequent granulation and improving production stability.

[0013] 2. This invention, by setting up a quick-release mechanism including a connecting seat, a connecting ring and a snap-fit ​​L-shaped groove structure, connects the cylinder and the bottom of the furnace body by using a rotating snap-fit ​​locking method. This solves the problem of cumbersome and time-consuming disassembly when the adjustment mechanism is repaired or replaced after long-term use. It achieves the technical effect of quickly separating components without the need for special and complicated tools, significantly shortening downtime maintenance time and improving work efficiency.

[0014] 3. This invention solves the problem of increased resistance in the adjustment mechanism and easy damage to transmission components caused by slag block jamming during slag discharge. It achieves the technical effect of automatically fine-tuning or stopping the action when encountering jamming conditions, avoiding hard impact, effectively protecting the internal structure, and extending the service life of the equipment.

[0015] 4. This invention solves the problem of lateral leakage of high-temperature slag between the two plates due to the gap between the plates by setting high-temperature resistant sealing rings above and below the mating surfaces of the regulating plate and the guide plate, achieving excellent sealing and isolation effect and ensuring the safety and cleanliness of the slag discharge process. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of a non-ferrous metal smelting slag discharge component proposed in this invention. Figure 2 This is a schematic diagram of the cylindrical structure of a non-ferrous metal smelting slag discharge assembly proposed in this invention. Figure 3 This is a schematic diagram of the structure of the regulating plate of a non-ferrous metal smelting slag discharge component proposed in this invention; Figure 4 This is a schematic diagram of the guide plate of a non-ferrous metal smelting slag discharge assembly proposed in this invention.

[0017] Legend: 1. Furnace body; 2. Adjustment mechanism; 21. Protective shell; 22. Limiting block; 23. Support rod; 24. Connecting block; 25. Transmission assembly; 251. Hydraulic cylinder; 252. Telescopic rod; 253. Rack plate; 254. Central shaft; 255. Gear; 256. Adjusting plate; 26. Guide plate; 27. Sealing ring one; 28. Sealing ring two; 3. Cylinder; 4. Quick release mechanism; 41. Connecting ring; 42. Connecting seat; 43. Buckle. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0019] Example: Reference Figures 1 to 4 This invention provides a slag discharge component for non-ferrous metal smelting, which aims to solve the problems of difficult and inaccurate control of slag flow and complex subsequent maintenance and disassembly in the prior art.

[0020] The slag discharge assembly for non-ferrous metal smelting includes a furnace body 1, an adjustment mechanism 2, a cylinder 3, and a quick-release mechanism 4. The adjustment mechanism 2 and the quick-release mechanism 4 are installed at the bottom of the furnace body 1. The cylinder 3 is detachably connected to the bottom of the furnace body 1 through the quick-release mechanism 4. The adjustment mechanism 2 is located inside the cylinder 3 and is used to adjust the discharge flow rate of the slag.

[0021] The regulating mechanism 2 includes a protective shell 21, which is fixedly connected to the bottom of the furnace body 1 to provide installation space and protection for the transmission components 25 inside the device; a guide plate 26, which is fixedly connected to the bottom of the protective shell 21 via a cylinder 3, and the guide plate 26 has fan-shaped guide holes to limit the slag flow channel; and an regulating plate 256, which has fan-shaped regulating holes. The regulating plate 256 is rotatably fitted above the guide plate 26. By rotating, the regulating plate 256 changes the overlapping area of ​​its fan-shaped regulating holes and the fan-shaped guide holes of the guide plate 26, thereby controlling the size of the slag flow cross section and realizing continuous and precise flow rate regulation.

[0022] The core of the regulating mechanism 2 is the transmission assembly 25, which drives the regulating plate 256 to rotate. The transmission assembly 25 includes a hydraulic cylinder 251, which is fixedly connected to the inner wall of the protective shell 21 via a connecting block 24. The hydraulic cylinder 251 drives a telescopic rod 252 to extend and retract axially, and a rack plate 253 is fixedly connected to the end of the telescopic rod 252. A central shaft 254 is fixedly installed inside the cylinder 3, and a gear 255 is rotatably sleeved on the surface of the central shaft 254. The gear 255 meshes with the rack plate 253, and the reciprocating linear movement of the rack plate 253 drives the gear 255 to rotate around the central shaft 254. The regulating plate 256 is coaxially fixedly connected to the rotating surface of the gear 255. The rotation of the gear 255 drives the regulating plate 256 to rotate synchronously relative to the guide plate 26, thereby achieving precise flow regulation. Hydraulic cylinder 251 is equipped with a pressure sensor and control unit, and has a force feedback function. When the driving resistance is detected to exceed the preset threshold, the control unit automatically performs a fine adjustment to hydraulic cylinder 251 to prevent damage to the transmission structure caused by slag jamming.

[0023] The regulating mechanism 2 also includes a limiting block 22 and a support rod 23. Both the limiting block 22 and the support rod 23 are disposed inside the protective shell 21. The support rod 23 is fixedly connected to a non-moving part of the transmission assembly 25, such as a connecting block 24, to provide support for the transmission assembly 25. In addition, the regulating mechanism 2 also includes a first sealing ring 27 and a second sealing ring 28. The first sealing ring 27 is disposed on the upper surface of the regulating plate 256, and the second sealing ring 28 is disposed on the lower surface of the guide plate 26. The first sealing ring 27 and the second sealing ring 28 are used to seal the mating gap between the regulating plate 256 and the guide plate 26 to prevent high-temperature slag leakage.

[0024] The cylinder 3 has a strip groove on one side wall adjacent to the gear 255. The strip groove extends along the rotation direction of the adjusting plate 256, providing operating clearance space for the rotation of the adjusting plate 256 or the transmission connection between the gear 255 and the adjusting plate 256, avoiding mechanical interference between the adjusting plate 256 and the inner wall of the cylinder 3 during rotation, and ensuring the smoothness of the adjustment action.

[0025] The quick-release mechanism 4 includes a connecting seat 42, a connecting ring 41, and a buckle 43. The connecting seat 42 is fixedly installed at the bottom of the furnace body 1, serving as a fixed mounting base. The connecting seat 42 has several buckles 43 inside, with each buckle 43 distributed circumferentially along the inner circumferential wall of the connecting seat 42. The connecting ring 41 is fixedly connected to the top of the cylinder 3. The outer circumferential surface of the connecting ring 41 has an L-shaped groove that matches the buckle 43. The L-shaped groove includes an axial groove section and a transverse groove section. The structural design aims to achieve locking through a combination of insertion and rotation.

[0026] In the assembled state, the connecting ring 41 is inserted into the connecting seat 42, and the buckle 43 is engaged in the transverse groove of the L-shaped groove on the connecting ring 41. At this time, the buckle 43 is tightly abutted against the groove wall of the L-shaped groove, thereby restricting the connecting ring 41 from coming out axially, and realizing a stable connection between the cylinder 3 and the furnace body 1. This structure of the buckle 43 and the L-shaped groove ensures the connection stability of the cylinder 3 during operation, and can withstand the vibration and impact generated by slag discharge.

[0027] When the adjusting mechanism 2 needs to be repaired or replaced, the operator only needs to rotate the cylinder 3 together with the connecting ring 41 by a certain angle, so that the buckle 43 slides out from the transverse groove of the L-shaped groove and aligns with the axial groove. Then, pull the cylinder 3 down to make the buckle 43 disengage along the axial groove, thus achieving rapid separation of the cylinder 3. The design does not require the use of special tools to disassemble the bolts, which significantly shortens the downtime for maintenance and improves the continuity and efficiency of smelting production. The control and power supply of power sources such as the hydraulic cylinder 251 can be achieved by using conventional hydraulic stations and control valve groups. The specific hydraulic circuit design is a well-known technology in this field and will not be described in detail here.

[0028] The adjustment mechanism 2 also includes a first sealing ring 27 and a second sealing ring 28. The first sealing ring 27 is disposed on the upper surface of the adjustment plate 256, forming an annular seal between the adjustment plate 256 and the bottom of the furnace body 1. The second sealing ring 28 is disposed on the lower surface of the guide plate 26, forming an annular seal between the guide plate 26 and the inner wall of the cylinder 3. The first sealing ring 27 and the second sealing ring 28 are preferably made of high-temperature resistant graphite or ceramic fiber materials to ensure reliable sealing performance under high-temperature smelting conditions. The hydraulic cylinder 251 is equipped with a pressure sensor and a control unit. The pressure sensor and control unit are used to monitor the driving pressure of the hydraulic cylinder 251 in real time. When the monitored driving pressure, i.e., the resistance feedback, exceeds a preset threshold, the control unit can automatically issue a command to make the hydraulic cylinder 251 perform fine-tuning or stop, thereby effectively avoiding hard impact and damage to the transmission components 25 such as the gear 255 and rack 253 due to slag jamming.

[0029] When the cylinder 3 is inserted into the connecting seat 42 via the connecting ring 41, the latch 43 first passes through the axial groove of the L-shaped groove. Then, the operator rotates the cylinder 3, and the latch 43 enters the transverse groove of the L-shaped groove. The latch 43 engages tightly with the bottom of the transverse groove to achieve axial locking and a secure connection of the components. For disassembly, by rotating the connecting ring 41 in the opposite direction, the latch 43 disengages from the transverse groove and enters the axial groove, allowing the cylinder 3 to be quickly removed from the connecting seat 42. The limiting block 22 and the support rod 23 are located inside the protective shell 21. Regarding the position, the support rod 23 is bolted to the connecting block 24, and the limiting block 22 is set on the other side inside the protective shell 21. The two work together to improve the structural stability and shock resistance of the transmission assembly 25 in the working state. The cylindrical 3 has a strip-shaped groove on the side wall adjacent to the gear 255. Its width is slightly larger than the thickness of the connection structure between the gear 255 and the adjusting plate 256, and its length extends along the circumferential direction, so that the outer edge of the adjusting plate 256 will not be blocked by the inner wall of the cylindrical 3 within the maximum rotation angle range.

[0030] The implementation principle of this application embodiment is as follows: The slag discharge assembly for non-ferrous metal smelting consists of an adjustment mechanism 2 and a quick-release mechanism 4 installed at the bottom of the furnace body 1. The cylinder 3 is connected to the quick-release mechanism 4, and the device can be disassembled through the quick-release mechanism 4.

[0031] Existing slag discharge ports are mostly fixed diameter or simple manual adjustment structures. Adjustment can only be roughly applied, making stepless speed regulation difficult. Changes in slag temperature and viscosity can easily lead to excessive or insufficient flow, resulting in uneven granulation, slag overflow, or flow interruption. Therefore, the flow rate is precisely adjusted via the adjustment mechanism 2. The protective shell 21 is fixed to the bottom of the furnace body 1, providing installation space for the device. The transmission assembly 25 converts the linear motion of the telescopic rod 252 into the rotational motion of the adjustment plate 256. The hydraulic cylinder 251 is connected to the protective shell 21 via the connecting block 24. The limit block 22 and the support rod 23 provide connection and support. The hydraulic cylinder 251 drives the telescopic rod 252 to extend and retract. The telescopic rod 252 drives the rack plate 253. The movement of the rack plate 253 in turn drives the gear 255 meshing with it to rotate around the central axis 254. The rotation of the gear 255 in turn drives the adjustment plate 256 meshing with it to rotate. The adjustment plate 256 has openings... Three fan-shaped adjustment holes match the three fan-shaped guide holes on the guide plate 26. The adjustment plate 256 rotates to change the overlapping area of ​​its own fan-shaped adjustment holes with the guide holes on the guide plate 26, thereby controlling the size of the slag flow cross section and realizing flow regulation. The first sealing ring 27 is located above the adjustment plate 256, and the second sealing ring 28 is located below the guide plate 26. The first sealing ring 27 and the second sealing ring 28 prevent slag from leaking from the gap between the two plates. Each device is fixed inside the cylinder 3. At the same time, a groove is opened on the side of the cylinder 3 that contacts the gear 255 to provide operating space for the rotation of the adjustment plate 256. The hydraulic cylinder 251 drives and controls the overlapping area of ​​the holes of the adjustment plate 256 and the guide plate 26. The higher the overlap, the greater the flow rate, and vice versa. The hydraulic cylinder 251 has its own force feedback and automatically makes fine adjustments when encountering slag block jamming, avoiding hard adjustment that damages the structure, thus improving the flow regulation accuracy, adapting to slags of different viscosities, and eliminating slag overflow and flow interruption problems.

[0032] After long-term use, the adjustment mechanism 2 needs to be inspected or replaced, which can be achieved through the quick-release mechanism 4. The connecting seat 42 is fixed to the bottom of the furnace body 1, and multiple buckles 43 are fixed inside the connecting seat 42. The connecting ring 41 is connected to the cylinder 3. The connecting ring 41 has an L-shaped groove that fits the buckle 43. In the locked state, the buckle 43 is tightly engaged with the L-shaped groove on the connecting ring 41. When disassembling, you only need to rotate the connecting ring 41 at a certain angle to release it from the L-shaped groove on the connecting ring 41. It is simple and quick and improves work efficiency.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A slag discharge assembly for non-ferrous metal smelting, comprising a furnace body (1), a cylinder (3), an adjustment mechanism (2), and a quick-release mechanism (4), wherein the adjustment mechanism (2) and the quick-release mechanism (4) are installed at the bottom of the furnace body (1), the cylinder (3) is detachably connected to the bottom of the furnace body (1) through the quick-release mechanism (4), and the adjustment mechanism (2) is disposed inside the cylinder (3); Its features are, The adjustment mechanism (2) includes a protective shell (21) fixedly connected to the bottom of the furnace body (1), a guide plate (26) fixed below the protective shell (21) by the cylinder (3), and an adjustment plate (256) rotatably fitted above the guide plate (26). The adjustment mechanism (2) further includes a connecting block (24) and a transmission assembly (25). The transmission assembly (25) includes a hydraulic cylinder (251) fixed to the protective shell (21) by the connecting block (24), a telescopic rod (252) driven by the hydraulic cylinder (251) to extend and retract axially, a rack plate (253) connected to the end of the telescopic rod (252), a fixed central shaft (254), and a gear (255) rotatably sleeved on the surface of the central shaft (254). The rack plate (253) meshes with the gear (255).

2. The slag discharge assembly for non-ferrous metal smelting according to claim 1, characterized in that, The adjustment mechanism (2) further includes a limiting block (22) and a support rod (23) disposed inside the protective shell (21). The limiting block (22) and the support rod (23) are fixedly connected to the inner wall of the protective shell (21), and the support rod (23) is fixedly connected to the non-moving part of the transmission assembly (25) to provide support.

3. The slag discharge assembly for non-ferrous metal smelting according to claim 1, characterized in that, The cylinder (3) has a strip groove on one side wall adjacent to the gear (255). Part of the structure of the gear (255) or the adjusting plate (256) passes through the strip groove to achieve a transmission connection. The strip groove extends along the rotation direction of the adjusting plate (256).

4. The slag discharge assembly for non-ferrous metal smelting according to claim 1, characterized in that, The adjustment mechanism (2) further includes a sealing ring one (27) and a sealing ring two (28). The sealing ring one (27) is disposed on the upper surface of the adjustment plate (256), and the sealing ring two (28) is disposed on the lower surface of the guide plate (26). The sealing ring one (27) and the sealing ring two (28) are used to seal the fitting gap between the adjustment plate (256) and the guide plate (26).

5. A slag discharge assembly for non-ferrous metal smelting according to claim 1, characterized in that, The quick-release mechanism (4) includes a connecting seat (42) fixedly installed at the bottom of the furnace body (1) and a plurality of buckles (43) disposed inside the connecting seat (42), the buckles (43) being distributed circumferentially along the inner peripheral wall of the connecting seat (42).

6. A slag discharge assembly for non-ferrous metal smelting according to claim 5, characterized in that, The quick-release mechanism (4) also includes a connecting ring (41) fixedly connected to the top of the cylinder (3), and the outer circumferential surface of the connecting ring (41) is provided with an L-shaped groove that is compatible with the buckle (43).

7. A slag discharge assembly for non-ferrous metal smelting according to claim 1, characterized in that, The hydraulic cylinder (251) is equipped with a pressure sensor and a control unit for monitoring resistance feedback during the driving process.

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