Dynamic spiral-flow type smelting slag dilution device and method

Abstract

The invention provides a dynamic spiral-flow type smelting slag dilution device and method, and relates to the technical field of smelting. The device comprises a shell, a feeding mechanism, a stirring mechanism and a wall scraping mechanism; the shell comprises a leaching tank and a cover body arranged on the leaching tank; the feeding mechanism is arranged on the cover body and is used for filling smelting slag and leachate; the stirring mechanism comprises a driving assembly arranged on the cover body and a stirring assembly arranged at the output end of the driving assembly; the stirring assembly comprises a stirring rod and a plurality of groups of stirring pieces arranged on the stirring rod; the wall scraping mechanism comprises a wall scraping push rod, a lifting rod arranged at the output end of the wall scraping push rod and a wall scraping ring connected with the lifting rod, and the outer wall of the wall scraping ring is attached to the inner wall of the leaching tank. The technical problem that in the prior art, smelting slag is prone to being attached to the inner wall during stirring leaching, and consequently the leaching rate is decreased can be solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of smelting, in particular to a dynamic cyclone type smelting slag depleting device and method. BACKGROUND

[0002] In the copper smelting process, smelting (such as flash smelting, blast furnace smelting, etc.) will produce smelting slag, which usually contains a certain amount of copper that has not been fully recovered. In order to improve the copper recovery rate, smelting slag needs to be treated to reduce the copper content in the smelting slag, and such equipment for treating smelting slag is collectively referred to as a smelting slag depleting device.

[0003] Currently, smelting slag depletion usually uses leaching solution to recover copper in smelting slag by chemical dissolution. In the leaching process, the smelting slag depleting device generally uses stirring paddles to stir the leaching solution to speed up the dissolution of copper in the smelting slag. However, in the rotation process of the stirring paddles, the smelting slag is easily thrown to the inner wall of the smelting slag depleting device under the action of centrifugal force, gradually accumulates to form a continuous slag layer, which leads to a decrease in leaching rate and affects the service life of the smelting slag depleting device. SUMMARY

[0004] Therefore, the purpose of the present application is to provide a dynamic cyclone type smelting slag depleting device and method to solve the problem of smelting slag adhering to the inner wall during stirring leaching, which leads to a decrease in leaching rate.

[0005] In one aspect, the present application provides a dynamic cyclone type smelting slag depleting device, which comprises: a housing, a feeding mechanism, a stirring mechanism, and a wall scraping mechanism; The housing comprises a leaching tank and a cover body arranged on the leaching tank. The feeding mechanism is arranged on the cover body and is used for pouring smelting slag and leaching solution. The stirring mechanism comprises a driving assembly arranged on the cover body and a stirring assembly arranged at the output end of the driving assembly. The stirring assembly comprises a stirring rod and a plurality of sets of stirring pieces arranged on the stirring rod. The wall scraping mechanism comprises a wall scraping push rod, a lifting rod arranged at the output end of the wall scraping push rod, and a wall scraping ring connected with the lifting rod. The outer wall of the wall scraping ring is attached to the inner wall of the leaching tank. When the stirring pieces are driven to rotate, the smelting slag is thrown to the inner wall of the leaching tank under the action of centrifugal force. The wall scraping push rod pushes the lifting rod to drive the wall scraping ring to scrape off the smelting slag adhering to the inner wall of the leaching tank.

[0006] Compared with the prior art, the present application has the beneficial effects that: through the arrangement of the wall scraping mechanism, the wall scraping mechanism comprises a wall scraping push rod, a lifting rod arranged at the output end of the wall scraping push rod, and a wall scraping ring connected with the lifting rod, the outer wall of the wall scraping ring is attached to the inner wall of the leaching tank, when the stirring part is driven to rotate, the smelting slag is thrown to the inner wall of the leaching tank under the action of centrifugal force, the wall scraping push rod pushes the lifting rod to drive the wall scraping ring to scrape off the smelting slag attached to the inner wall of the leaching tank, the smelting slag attached to the inner wall of the leaching tank can be effectively scraped off, the leaching rate is improved, and the technical problem that the smelting slag is easily attached to the inner wall during stirring and leaching, thereby reducing the leaching rate, is solved.

[0007] According to an aspect of the above technical solution, the stirring part comprises a plurality of uniformly spaced paddles arranged circumferentially along the stirring rod, and the paddles are arranged obliquely.

[0008] According to an aspect of the above technical solution, the wall scraping mechanism is drivingly connected to a slag blocking mechanism, the slag blocking mechanism comprises a slag blocking assembly arranged in the leaching tank and a transmission assembly connected with the slag blocking assembly, the transmission assembly comprises a lifting ring arranged on the wall scraping push rod and a transmission part connected with the lifting ring, the transmission part comprises a first transmission subpart, a gear, and a second transmission subpart, one end of the first transmission subpart is connected to the lifting ring, the other end is provided with a first rack, one end of the second transmission subpart is provided with a second rack, and the other end is connected to the slag blocking assembly, and the first rack and the second rack are engaged with the gear.

[0009] According to an aspect of the above technical solution, the slag blocking assembly comprises a first slag blocking ring and a plurality of second slag blocking rings connected in sequence with the first slag blocking ring, the first slag blocking ring is connected to the second transmission subpart, the height of the first slag blocking ring is higher than the height of the second slag blocking ring, and the diameters of the first slag blocking ring and the second slag blocking ring are smaller than the diameter of the wall scraping ring, the lifting rod and the lifting ring are driven upward by the wall scraping push rod, the wall scraping ring placed at the bottom of the leaching tank moves upward to scrape off the smelting slag on the inner wall, the first transmission subpart is driven upward by the lifting ring, the gear is driven to rotate by the first rack, the second rack is driven to move downward, and the first slag blocking ring and the second slag blocking ring are driven to move downward by the second transmission subpart to block the scraped smelting slag from directly entering the bottom of the leaching tank.

[0010] According to an aspect of the above technical solution, the first slag retaining ring is movably connected with the second slag retaining ring and two adjacent second slag retaining rings, a connecting rod is arranged between the first slag retaining ring and the second slag retaining ring and two adjacent second slag retaining rings, the second slag retaining ring is provided with a connecting groove on a side close to the connecting rod, the connecting rod comprises a connecting sub-rod and an anti-disengagement block arranged at an end of the connecting sub-rod, the diameter of the anti-disengagement block is greater than the diameter of the connecting sub-rod, part of the connecting sub-rod and the anti-disengagement block are clamped into the connecting groove, and the other end of the connecting sub-rod is fixedly connected to the outer wall of the bottom of the connecting groove of another adjacent first slag retaining ring or second slag retaining ring.

[0011] According to an aspect of the above technical solution, a re-dipping mechanism is connected to the first slag retaining ring, the re-dipping mechanism comprises a bearing disc arranged on the first slag retaining ring and a spraying assembly, when the wall scraping ring moves upward and the slag retaining assembly moves downward to form a height difference, the scraped smelting slag is accumulated and moved to the bearing disc, the leaching liquid is sprayed into the bearing disc through the spraying assembly, and the scraped smelting slag is leached.

[0012] According to an aspect of the above technical solution, the spraying assembly comprises a spraying pipe arranged on the cover and a spraying ring connected with the spraying pipe, the spraying ring is arranged at the bottom of the cover, a plurality of uniformly spaced spraying holes are arranged on the spraying ring, the leaching liquid is filled into the spraying pipe, passes through the spraying ring, and is sprayed on the bearing disc through the spraying holes.

[0013] According to an aspect of the above technical solution, the device further comprises a slag rolling mechanism, the slag rolling mechanism comprises a slag rolling disc sleeved on the stirring rod and a connecting ring arranged on the slag rolling disc, the bearing disc is hollowly arranged, the bearing ring is sleeved on the stirring rod, when the slag retaining assembly drives the bearing disc to move upward, the bearing disc moves close to the slag rolling disc, so that the slag rolling disc rolls and presses the smelting slag on the bearing disc, until the bearing disc moves away from the bearing ring, the smelting slag reflows into the leaching tank through the hollowly arranged channel and is rotated and leached.

[0014] According to an aspect of the above technical solution, an inner wall of the connecting ring is provided with a sliding channel, a sliding rod is sleeved on the stirring rod, one end of the sliding rod close to the connecting ring slides in the sliding channel, when the stirring rod rotates, the sliding rod is driven to rotate, so that the sliding rod rotates up and down along the sliding channel, thereby driving the slag rolling disc to move up and down to roll and press the smelting slag.

[0015] Another aspect of the present application provides a dynamic cyclone type smelting slag depletion method, the method is applied to the above dynamic cyclone type smelting slag depletion device, and the method comprises the following steps: Filling smelting slag and leaching liquid into a leaching tank; Start the drive unit to drive the stirring unit to rotate; The scraper push rod is activated to move the lifting rod, which in turn moves the scraper ring to scrape off the smelting slag adhering to the inner wall of the leaching tank. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the dynamic swirl-type smelting slag depletion device in Embodiment 1 of the present invention; Figure 2 This is a cross-sectional view of the dynamic swirl-type smelting slag depletion device in Embodiment 1 of the present invention; Figure 3 This is a partial structural schematic diagram of the dynamic swirl-type smelting slag depletion device in Embodiment 1 of the present invention; Figure 4 This is a schematic diagram of the slag-blocking component in Embodiment 1 of the present invention; Figure 5 This is a schematic diagram of the wall scraping mechanism, re-immersion mechanism, and slag grinding mechanism in Embodiment 1 of the present invention; Figure 6 This is a schematic diagram of the re-leaching mechanism and the slag grinding mechanism in Embodiment 1 of the present invention; Figure 7 This is a partial structural schematic diagram of the re-leaching mechanism and the slag grinding mechanism in Embodiment 1 of the present invention; Component symbol explanation in the attached diagram: Shell 10, leaching tank 11, cover 12, base 13, feeding mechanism 20, stirring mechanism 30, drive assembly 31, stirring assembly 32, blade 321, wall scraping mechanism 40, wall scraping push rod 41, lifting rod 42, wall scraping ring 43, slag blocking mechanism 50, lifting ring 51, first transmission component 52, gear 53, second transmission component 54, slag blocking assembly 55, connecting rod 56, re-leaching mechanism 60, bearing plate 61, spray assembly 62, bearing ring 63, slag grinding mechanism 70, slag grinding plate 71, connecting ring 72, slag grinding ring 73, discharge port 110, stirring rod 320, slag grinding section 322, first slag blocking ring 550, second slag blocking ring 551, connecting rod 560, anti-detachment block 561, spray pipe 620, spray ring 621, support bar 630, slag grinding rod 710, sliding channel 720, sliding rod 721; The following detailed description, in conjunction with the accompanying drawings, will further illustrate the present invention. Detailed Implementation

[0017] To facilitate understanding of the present invention, a more complete description will be given below with reference to the accompanying drawings. Several embodiments of the invention are illustrated in the drawings. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

[0018] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0019] Example 1 Please see Figures 1-7 The image shows a dynamic swirl-type smelting slag depletion device provided in Embodiment 1 of the present invention. The device includes: Shell 10, feeding mechanism 20, stirring mechanism 30, wall scraping mechanism 40; The housing 10 includes an leaching tank 11 and a cover 12 disposed on the leaching tank 11; Furthermore, the bottom of the leaching tank 11 is provided with a discharge port 110, and the bottom end of the leaching tank 11 is provided with a base 13, which is used to support the leaching tank 11.

[0020] The feeding mechanism 20 is located on the cover 12 and is used to fill in smelting slag and leachate; The feeding mechanism 20 includes a first feeding component and a second feeding component. Both the first feeding component and the second feeding component are equipped with valves for opening or closing the injection of smelting slag and leachate.

[0021] The stirring mechanism 30 includes a drive assembly 31 disposed on the cover 12 and a stirring assembly 32 disposed at the output end of the drive assembly 31. The stirring assembly 32 includes a stirring rod 320 and a plurality of stirring components disposed on the stirring rod 320. Furthermore, the stirring component includes several uniformly spaced blades 321 arranged circumferentially along the stirring rod 320. The blades 321 are inclined and have an angle of 30° to 60° with the horizontal plane, so that when the blades 321 rotate, they simultaneously generate radial thrust (throwing the smelting slag and leachate outward) and axial lift (pushing the smelting slag and leachate to circulate up and down), forming a spiral upward / downward swirling flow field.

[0022] The wall scraping mechanism 40 includes a wall scraping push rod 41, a lifting rod 42 located at the output end of the wall scraping push rod 41, and a wall scraping ring 43 connected to the lifting rod 42. The outer wall of the wall scraping ring 43 is in contact with the inner wall of the leaching tank 11. When the agitator rotates, the smelting slag is thrown to the inner wall of the leaching tank 11 under the action of centrifugal force. The scraper push rod 41 pushes the lifting rod 42 to drive the scraper ring 43 to scrape off the smelting slag adhering to the inner wall of the leaching tank 11.

[0023] Furthermore, the wall scraping mechanism 40 is connected to the slag blocking mechanism 50. The slag blocking mechanism 50 includes a slag blocking component 55 disposed in the leaching tank 11 and a transmission component connected to the slag blocking component 55. The transmission component includes a lifting ring 51 disposed on the wall scraping push rod 41 and a transmission component connected to the lifting ring 51. The transmission component includes a first transmission sub-component 52, a gear 53, and a second transmission sub-component 54. One end of the first transmission sub-component 52 is connected to the lifting ring 51, and the other end is provided with a first rack. One end of the second transmission sub-component 54 is provided with a second rack, and the other end is connected to the slag blocking component 55. The gear 53 meshes between the first rack and the second rack.

[0024] The slag-blocking assembly 55 includes a first slag-blocking ring 550 and several second slag-blocking rings 551 connected sequentially to the first slag-blocking ring 550. The first slag-blocking ring 550 is connected to a second transmission component 54. The height of the first slag-blocking ring 550 is higher than the height of the second slag-blocking rings 551. The diameters of the first slag-blocking ring 550 and the second slag-blocking rings 551 are smaller than the diameter of the wall-scraping ring 43. The wall-scraping push rod 41 drives the lifting rod 42 and the lifting ring 51 to move upward, causing the wall-scraping ring 43, which is located at the bottom of the leaching tank 11, to move upward and scrape off the smelting slag on the inner wall. The lifting ring 51 drives the first transmission component 52 to move upward, and drives the gear 53 to rotate through the first rack, which drives the second rack to move downward. Thus, the second transmission component 54 drives the first slag-blocking ring 550 and the second slag-blocking ring 551 to move downward, preventing the scraped smelting slag from directly entering the bottom of the leaching tank 11.

[0025] In other words, after the first slag-blocking ring 550 and the second slag-blocking ring 551 move down, they form an "annular barrier" in the leaching tank 11, preventing the smelting slag that has just been scraped off from escaping directly downwards (such as into the slag discharge zone or dead zone).

[0026] Specifically, the first slag-blocking ring 550 and the second slag-blocking ring 551, as well as two adjacent second slag-blocking rings 551, are movably connected. A connecting rod 56 is provided between the first slag-blocking ring 550 and the second slag-blocking ring 551, as well as two adjacent second slag-blocking rings 551. The second slag-blocking ring 551 has a connecting groove on the side near the connecting rod 56. The connecting rod 56 includes a connecting sub-rod 560 and an anti-detachment block 561 located at the end of the connecting sub-rod 560. The diameter of the anti-detachment block 561 is larger than the diameter of the connecting sub-rod 560. Part of the connecting sub-rod 560 and the anti-detachment block 561 are inserted into the connecting groove. The other end of the connecting sub-rod 560 is fixedly connected to the bottom outer wall of the connecting groove of another adjacent first slag-blocking ring 550 or second slag-blocking ring 551.

[0027] It should be noted that the anti-detachment block 561 is inserted into the connecting groove, allowing the connecting rod 560 to pass through the connecting groove, realizing the movable connection between the first slag-blocking ring 550 and the second slag-blocking ring 551, and between two adjacent second slag-blocking rings 551. When the second transmission component 54 moves downward, it drives the first slag-blocking ring 550 to move downward, so that multiple sets of second slag-blocking rings 551 are connected in series through movable connection, forming a flexible barrier to prevent the smelting slag that has just been scraped off from escaping directly downward.

[0028] Furthermore, a re-leaching mechanism 60 is connected to the first slag-blocking ring 550. The re-leaching mechanism 60 includes a support plate 61 and a spraying assembly 62 disposed on the first slag-blocking ring 550. When the scraping ring 43 moves upward and the slag-blocking assembly 55 moves downward to form a height difference, the scraped slag accumulates and moves to the support plate 61 on the slag-blocking assembly 55. The leaching liquid is sprayed into the support plate 61 by the spraying assembly 62, so that the scraped slag is leached out.

[0029] The spray assembly 62 includes a spray pipe 620 disposed on the cover 12 and a spray ring 621 connected to the spray pipe 620. The spray ring 621 is provided at the bottom of the cover 12 and has a plurality of spray holes evenly spaced on it. The leachate is injected through the spray pipe 620, passes through the spray ring 621, and is sprayed onto the support plate 61 through the spray holes.

[0030] It should be noted that when the scraper ring 43 moves upward and the first slag-blocking ring 550 moves downward, the scraped-off slag is pushed to the support plate 61, where the leaching solution is sprayed into the support plate 61 by the spray assembly 62, providing sufficient reaction time for the difficult-to-leach scraped-off slag. Furthermore, the support plate 61 is an independent reaction zone, and the spray assembly 62 can directionally provide high-concentration or different ratios of leaching solution to improve the leaching rate.

[0031] In addition, smelting slag is prone to forming silica gel during the leaching process. Therefore, a slag crushing mechanism 70 is needed to crush the smelting slag to expose the copper ions encased in the silica gel and improve the leaching rate. The slag crushing mechanism 70 includes a crushing disc 71 sleeved on the stirring rod 320 and a connecting ring 72 on the crushing disc 71. The bearing disc 61 is hollow and is sleeved on the stirring rod 320 through the bearing ring 63. When the slag blocking assembly 55 drives the bearing disc 61 to move upward, the bearing disc 61 moves closer to the crushing disc 71, thereby crushing the smelting slag on the bearing disc 61 until the bearing disc 61 moves away from the bearing ring 63. Then, the smelting slag flows back into the leaching tank 11 through the hollow channel for rotary leaching.

[0032] It should be noted that the hollow structure of the bearing plate 61, combined with the crushing of the slag grinding plate 71, allows the crushed fine slag to flow back to the vortex zone of the leaching tank 11 through the channel, avoiding the accumulation of slag, while allowing the fine slag to continue to participate in the vortex leaching, thus achieving the graded treatment of "coarse slag crushing → fine slag deep leaching".

[0033] As an example, and not a limitation, the inner wall of the support ring 63 is connected to the stirring rod 320 via the support bar 630, which allows the broken fine residue to pass through the channel, then through the support ring 63, and flow back into the vortex zone of the leaching tank 11 to continue reacting with the leachate, thereby increasing the leaching rate and reducing residue.

[0034] Furthermore, the inner wall of the connecting ring 72 is provided with a sliding channel 720, and a sliding rod 721 is sleeved on the stirring rod 320. The sliding rod 721 slides in the sliding channel 720 at one end near the connecting ring 72. When the stirring rod 320 rotates, it drives the sliding rod 721 to rotate, so that the sliding rod 721 rotates up and down along the sliding channel 720, thereby driving the slag grinding disc 71 to move up and down to crush the smelting slag.

[0035] As an example, and not a limitation, the stirring rod 320 includes a slag-grinding section 322. The diameter of the slag-grinding section 322 is smaller than the diameter of the stirring rod 320 to limit the vertical displacement of the slag-grinding disc 71. A slag-grinding ring 73 is fitted onto the slag-grinding section 322. A sliding rod 721 and a slag-grinding rod 710 are fixedly connected to the slag-grinding ring 73. The slag-grinding rod 710 is fixedly connected to the slag-grinding disc 71 at a downward angle, forming an inverted umbrella shape. In addition, the sliding channel 720 can be a spiral or stepped structure, forming an axial constraint on the sliding rod 721. When the sliding rod 721 moves along the circumference, it is "pushed" by the sliding channel 720, resulting in vertical displacement, which is transmitted to the slag-grinding disc 71. This allows the disc to maintain rotational crushing (shear force) while grinding the smelting slag, and also dynamically adjust the distance between the disc and the bearing disc 61, i.e., control the pressure, such as increasing pressure when close and depressurizing when far away.

[0036] In summary, the dynamic swirl-type smelting slag depletion device and method in the above embodiments of the present invention, through the setting of a wall scraping mechanism, includes a wall scraping push rod, a lifting rod disposed at the output end of the wall scraping push rod, and a wall scraping ring connected to the lifting rod. The outer wall of the wall scraping ring is attached to the inner wall of the leaching tank. When the driving agitator rotates, the smelting slag is thrown to the inner wall of the leaching tank under the action of centrifugal force. The wall scraping push rod pushes the lifting rod to drive the wall scraping ring to scrape off the smelting slag attached to the inner wall of the leaching tank. This can effectively scrape off the smelting slag attached to the inner wall of the leaching tank, improve the leaching rate, and thus solve the technical problem that smelting slag is easy to adhere to the inner wall during stirring leaching, resulting in a decrease in the leaching rate.

[0037] Example 2 Embodiment 2 of the present invention provides a dynamic swirl-type smelting slag depletion method, the method comprising the following steps.

[0038] Step S10: Pour the smelting slag and leaching solution into the leaching tank; Step S11: Start the drive component to drive the stirring component to rotate; Step S12: Activate the wall scraping push rod to drive the lifting rod to move, which in turn drives the wall scraping ring to scrape off the smelting slag adhering to the inner wall of the leaching tank.

[0039] Specifically, the scraper push rod is activated to push the lifting rod and lifting ring upwards, which in turn causes the scraper ring, located at the bottom of the leaching tank, to move upwards and scrape off the smelting slag adhering to the inner wall of the leaching tank. At this time, the first transmission component moves upward under the drive of the lifting ring, thereby driving the gear to move, causing the second transmission component to move in the opposite direction, that is, downward. The downward movement of the second transmission component drives the first slag-blocking ring to move downward, squeezing the adjacent second slag-blocking ring, so that the first slag-blocking ring and several second slag-blocking rings are connected in series to form a flexible barrier, preventing the slag that has just been scraped off from escaping downward or from the middle.

[0040] Next, the scraping ring moves upward and the slag-blocking assembly moves downward. After forming a height difference, the scraped slag is pushed onto the bearing plate on the first slag-blocking ring. The leaching liquid is sprayed into the bearing plate by the spraying assembly, so that the scraped slag is leached out. When the scraper push rod is closed, the lifting rod and lifting ring move downwards. The first transmission component moves downwards, causing the second transmission component to move upwards, which in turn causes the first slag-blocking ring to move upwards. This causes the bearing plate to move closer to the slag-grinding plate, and the slag-grinding plate crushes the smelting slag on the bearing plate until the bearing plate moves away from the bearing ring. Then, the smelting slag flows back into the leaching tank through the hollow channel for smelting.

[0041] In summary, the dynamic swirl-type smelting slag depletion method in the above embodiments of the present invention, by activating the wall scraper pusher to drive the lifting rod to move, drives the wall scraper ring to move and scrape off the smelting slag adhering to the inner wall of the leaching tank, can effectively scrape off the smelting slag adhering to the inner wall of the leaching tank, improve the leaching rate, and thus solve the technical problem that smelting slag is easy to adhere to the inner wall during stirring leaching, resulting in a decrease in the leaching rate.

[0042] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0043] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. A dynamic swirl-type smelting slag depletion device, characterized in that, The device includes: Shell, feeding mechanism, mixing mechanism, wall scraping mechanism; The shell includes an leaching tank and a cover disposed on the leaching tank; The feeding mechanism is located on the cover and is used to pour in smelting slag and leachate; The stirring mechanism includes a drive assembly disposed on the cover and a stirring assembly disposed at the output end of the drive assembly. The stirring assembly includes a stirring rod and several sets of stirring components disposed on the stirring rod. The wall scraping mechanism includes a wall scraping push rod, a lifting rod located at the output end of the wall scraping push rod, and a wall scraping ring connected to the lifting rod, wherein the outer wall of the wall scraping ring is in contact with the inner wall of the leaching tank. When the agitator rotates, the smelting slag is thrown against the inner wall of the leaching tank by centrifugal force. The scraper push rod pushes the lifting rod to drive the scraper ring to scrape off the smelting slag adhering to the inner wall of the leaching tank.

2. The dynamic swirl-type smelting slag depletion device according to claim 1, characterized in that, The stirring component includes a plurality of evenly spaced blades arranged circumferentially along the stirring rod, and the blades are inclined.

3. The dynamic swirl-type smelting slag depletion device according to claim 1, characterized in that, The wall scraping mechanism is connected to the slag-blocking mechanism. The slag-blocking mechanism includes a slag-blocking component disposed in the leaching tank and a transmission component connected to the slag-blocking component. The transmission component includes a lifting ring disposed on the wall scraping push rod and a transmission member connected to the lifting ring. The transmission member includes a first transmission sub-component, a gear, and a second transmission sub-component. One end of the first transmission sub-component is connected to the lifting ring, and the other end is provided with a first rack. One end of the second transmission sub-component is provided with a second rack, and the other end is connected to the slag-blocking component. The gear meshes between the first rack and the second rack.

4. The dynamic swirl-type smelting slag depletion device according to claim 3, characterized in that, The slag-blocking assembly includes a first slag-blocking ring and a plurality of second slag-blocking rings connected sequentially to the first slag-blocking ring. The first slag-blocking ring is connected to the second transmission component. The height of the first slag-blocking ring is higher than the height of the second slag-blocking rings. The diameters of the first and second slag-blocking rings are smaller than the diameter of the wall-scraping ring. The wall-scraping push rod drives the lifting rod and the lifting ring to move upward, causing the wall-scraping ring, which is located at the bottom of the leaching tank, to move upward and scrape off the smelting slag on the inner wall. The lifting ring drives the first transmission component to move upward, and the first rack drives the gear to rotate, which in turn drives the second rack to move downward. Thus, the second transmission component drives the first and second slag-blocking rings to move downward, preventing the scraped smelting slag from directly entering the bottom of the leaching tank.

5. The dynamic swirl-type smelting slag depletion device according to claim 4, characterized in that, The first slag-blocking ring is movably connected to the second slag-blocking ring and two adjacent second slag-blocking rings. A connecting rod is provided between the first slag-blocking ring, the second slag-blocking ring, and two adjacent second slag-blocking rings. The second slag-blocking ring has a connecting groove on the side near the connecting rod. The connecting rod includes a connecting sub-rod and an anti-detachment block at the end of the connecting sub-rod. The diameter of the anti-detachment block is larger than the diameter of the connecting sub-rod. Part of the connecting sub-rod and the anti-detachment block are inserted into the connecting groove. The other end of the connecting sub-rod is fixedly connected to the bottom outer wall of the connecting groove of another adjacent first slag-blocking ring or second slag-blocking ring.

6. The dynamic swirl-type smelting slag depletion device according to claim 4, characterized in that, A re-leaching mechanism is connected to the first slag-blocking ring. The re-leaching mechanism includes a support plate and a spraying assembly on the first slag-blocking ring. When the scraping ring moves upward and the slag-blocking assembly moves downward to form a height difference, the scraped slag accumulates and moves onto the support plate. The spraying assembly sprays leaching liquid into the support plate, thereby leaching the scraped slag.

7. The dynamic swirl-type smelting slag depletion device according to claim 6, characterized in that, The spray assembly includes a spray pipe disposed on the cover and a spray ring connected to the spray pipe. The spray ring is located at the bottom of the cover and has a plurality of spray holes evenly spaced on it. The leachate is injected through the spray pipe, passes through the spray ring, and is sprayed onto the support plate through the spray holes.

8. The dynamic swirl-type smelting slag depletion device according to claim 7, characterized in that, The device further includes a slag grinding mechanism, which includes a slag grinding disc sleeved on the stirring rod and a connecting ring on the slag grinding disc. The bearing disc is hollow and is sleeved on the stirring rod via the bearing ring. When the slag blocking assembly drives the bearing disc to move upward, the bearing disc moves closer to the slag grinding disc, thereby causing the slag grinding disc to crush the smelting slag on the bearing disc until the bearing disc moves away from the bearing ring. Then, the smelting slag flows back into the leaching tank for rotary leaching through the hollow channel.

9. The dynamic swirl-type smelting slag depletion device according to claim 8, characterized in that, The inner wall of the connecting ring is provided with a sliding channel, and a sliding rod is sleeved on the stirring rod. The sliding rod slides in the sliding channel at one end near the connecting ring. When the stirring rod rotates, it drives the sliding rod to rotate, so that the sliding rod rotates up and down along the sliding channel, thereby driving the slag grinding disc to move up and down to crush the smelting slag.

10. A method for depleting dynamic swirl-type smelting slag, characterized in that, The method is applied to the dynamic swirl-type smelting slag depletion device according to claims 1 to 9, and the method includes: The smelting slag and leachate are poured into the leaching tank; Start the drive unit to drive the stirring unit to rotate; The scraper push rod is activated to move the lifting rod, which in turn moves the scraper ring to scrape off the smelting slag adhering to the inner wall of the leaching tank.

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