A tin refining aluminum slag harmless treatment system and treatment method

Abstract

The present application belongs to the technical field of metal smelting waste gas treatment, especially a tin refining aluminum slag harmless treatment system and treatment method. In view of the inconvenience of replacing adsorption material in the waste gas treatment tower in the prior art, the following scheme is proposed, which includes an overall spliced cylindrical outer cover system. The outer cover system includes a base pipe, an intermediate sleeve and an exhaust top cylinder from bottom to top. The side surface of the base pipe is inserted with an air inlet pipe. The circumferential inner wall of the intermediate sleeve and the exhaust top cylinder is fixed with a lower tray two and a tray one respectively near the junction of the two. The lower tray two and the tray one are inserted with an air pipe which communicates with the upper and lower sides of the two. The upper surface of the tray one is provided with an annular sliding groove which coincides with the vertical center axis of the outer cover system. When the adsorption material needs to be replaced, only the exhaust needs to be temporarily stopped. After one of the hopper frames is taken out, the machine can continue to operate, which is convenient to replace and has low failure rate.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of metal smelting waste gas treatment, and particularly relates to a tin refining aluminum slag harmless treatment system and a treatment method. BACKGROUND

[0002] Tin smelting is a process of converting tin ore into pure tin through physical and chemical processes. This process involves multiple steps, including the pretreatment of ore, which first breaks the tin ore into small pieces, then grinds the ore to release as much tin content as possible, and then performs the final purification, i.e., refining; among them, refining is to obtain pure tin with a tin content that meets the standard. In the smelting process, harmful gases (such as sulfur dioxide, nitrogen oxides, etc.) are discharged, so waste gas treatment equipment (such as desulfurization devices, dust collectors, etc.) is needed to reduce the impact on the environment.

[0003] Through research, the tin refining aluminum slag is dry and has very fine particles, and the submerged arc furnace is under the condition of negative pressure exhaust, so when the tin refining aluminum slag is put into the submerged arc furnace, a large amount of tin refining aluminum slag dust is sucked away when falling in the hearth of the submerged arc furnace, becoming the smoke of the submerged arc furnace. The existing technology in the prior art often uses a desulfurization tower for treatment. Although this treatment method has a lower treatment cost, it is inconvenient to replace the adsorption consumables, and even needs to be stopped and cooled completely before replacement, reducing production efficiency. SUMMARY

[0004] In view of the technical problem of inconvenient replacement of adsorption materials in the waste gas treatment tower in the prior art, the present application adopts the following technical solution:

[0005] A tin refining aluminum slag harmless treatment system, comprising an outer cover system integrally spliced into a cylindrical cylindrical structure, and the outer cover system comprises a base pipe, an intermediate sleeve and an exhaust top cylinder from bottom to top, a gas inlet pipe is inserted into the side surface of the base pipe, and the circumferential inner wall of the intermediate sleeve and the exhaust top cylinder is fixed with a lower tray two and a tray one respectively near the junction of the two, and a ventilation pipe is inserted into the intermediate of the lower tray two and the tray one to communicate the upper and lower sides thereof; an annular chute coinciding with the vertical center axis of the outer cover system is opened on the upper surface of the tray one, and an arc-shaped rotary rack is slidably connected in the annular chute, two hopper frames integrally arranged in a central symmetry with their openings upward are connected to the upper surface of the arc-shaped rotary rack, two symmetric half-strip-shaped holes with sizes matching the opening size of the top end of the ventilation pipe are opened in the bottom of the hopper frame near the middle, and a screen is fixed to the inner wall of the bottom of the two hopper frames; a material replacement hole is opened in the circumferential side wall of the exhaust top cylinder above the arc-shaped rotary rack, and a sealing cover is connected to the hole of the material replacement hole, and a spray desulfurization mechanism is arranged in the intermediate sleeve.

[0006] Preferably, the bottom of the base pipe is fixed with a closed bottom plate, the air inlet pipe is provided with a bevel cutout above the bottom plate, and the top end of the bevel cutout is hinged with a gravity valve cover; the bottom plate is provided with a discharge hole near the edge, and the discharge hole is screwed with a plug.

[0007] Preferably, the circumferential inner wall of the exhaust top cylinder is fixed with a cantilever bracket below the material replacement hole, and the cantilever bracket is fixed with an electric push rod extending vertically upward, the top end of the electric push rod is fixed with a three-jaw support block, the tray one is provided with three rectangular slide holes above the three-jaw support block, and the three-jaw support block is slidably inserted into the three rectangular slide holes; the bottom of the hopper frame is provided with a protruding shaft above the arc-shaped rotary rack, and the upper surface of the arc-shaped rotary rack is provided with a positioning insertion hole corresponding to the protruding shaft near the two ends; when the hopper frame is pushed into the material replacement hole, it will first slide on the top of the three-jaw support block protruding from the rectangular slide hole, and after the three-jaw support block is withdrawn downward, the protruding shaft at the bottom end of the hopper frame is inserted into the corresponding positioning insertion hole, and then the arc-shaped rotary rack is controlled to rotate 180 degrees, so that the replaced hopper frame can be rotated above the air pipe, at the same time, another hopper frame to be replaced will also be rotated to the material replacement hole.

[0008] Preferably, the bottom of the hopper frame is provided with a recessed groove near one end of the exhaust top cylinder inner wall, and the recessed groove is provided with a slide rail on the vertical inner wall of the opposite side, and the two slide rails are slidably connected with a vertical top insertion rod, and a compression spring is fixed between the top end of the top insertion rod and the top inner wall of the recessed groove; a sliding bearing is embedded in the middle of the sealing cover near the bottom end, and the axis of the sliding bearing is distributed centripetally and points to the bottom end of the top insertion rod, a latch hook rod is slidably connected in the sliding bearing, and a anti-disengagement groove and a cap are respectively reserved at both ends of the latch hook rod, the cap is provided with a mark groove matched with the position of the anti-disengagement groove, and a return spring is fixed between the cap and the outer wall of the sealing cover; when the hopper frame needs to be pulled out, the latch hook rod only needs to be pressed inward, and then the sealing cover can be pulled out after the top insertion rod is hooked by the anti-disengagement groove.

[0009] Preferably, the tray one and the lower tray two are both provided with a center hole near the center hole, and the two center holes are fixed with a same installation barrel with a downward barrel-shaped structure; the tray one is provided with an air hole one near the center hole for inserting the air pipe, and the lower tray two is provided with an air hole two near the center hole for inserting the air pipe; the central angle of the arc-shaped rotary rack is equal to two hundred degrees, and the inner arc side of the arc-shaped rotary rack is provided with teeth, the tray one is provided with a gear slot penetrating through the annular slide groove, and the lower surface of the tray one is fixed with a motor mounting seat near the gear slot, the motor mounting seat is fixed with a reduction motor one, and the output shaft top end of the reduction motor one is fixed with a driving gear meshing with the arc-shaped rotary rack; so as to realize the smooth replacement of the two hopper frames.

[0010] Preferably, the installation barrel is provided with a heat dissipation hole near one side of the cantilever frame, and the outer wall of the middle sleeve is provided with a heat dissipation hole near the motor mounting seat, and an exhaust fan is installed in the heat dissipation hole to dissipate heat in time and ensure the normal operation of each electrical component.

[0011] Preferably, the circumferential inner wall of the exhaust top cylinder is fixed with a "Ω" shaped pressure ring at the top end of the material changing hole, and the pressure ring is located above the two hopper frames to prevent the two hopper frames from being separated from the positioning jack during the transposition process.

[0012] Preferably, the inner wall of the installation barrel is fixed with a motor bracket one, and the surface of the motor bracket one is fixed with a speed reducer motor two, and the output shaft of the speed reducer motor two is fixed with a vertical downward extending transmission rod, the spray desulfurization mechanism of the inner wall of the outer cover system has two sets, and the two sets of spray desulfurization mechanisms share one transmission rod, the bottom of the installation barrel is fixed with a partition plate, which plays a heat insulation role, and the spray desulfurization mechanism comprises a ring-shaped liquid accumulation groove fixed in the middle sleeve inner wall opening upward in a ring-shaped groove structure, a vortex fan runner rotatably connected at the top pipe opening of the inner circle of the ring-shaped liquid accumulation groove, three center-symmetrically distributed folded brackets fixed near the top end of the circumferential inner wall of the ring-shaped liquid accumulation groove, and a planet gear fixed at the top end of each folded bracket, and a center gear fixed in the middle of the transmission rod and meshing with the planet gears; the outer wall of the transmission rod is fixed with a conical rotating sprinkling cap with a downward opening and a conical cap structure near the top of the ring-shaped liquid accumulation groove; the circumferential outer wall of the vortex fan runner is fixed with a fan blade extending into the edge of the conical rotating sprinkling cap; the top end of the conical rotating sprinkling cap is provided with a spray system.

[0013] Preferably, the spray system comprises a connecting rod for fixing components, and the connecting rods in the upper and lower spray systems are respectively fixed to the lower surface of the lower tray two and the lower surface of the upper ring-shaped liquid accumulation groove, and the lower surface of the connecting rod is fixed with an external pump, and the inlet and outlet of the external pump are respectively fixed with a suction pipe and a ring-shaped spray pipe, and the bottom of the suction pipe is sleeved with a counterweight ball; the bottom end of the upper ring-shaped liquid accumulation groove is inserted with a communication liquid pipe, and the outer wall of the middle sleeve is reserved with an outer bucket pipe at the top end of the upper ring-shaped liquid accumulation groove, and the outer bucket pipe is inserted with a liquid supplementing pipe; the two ring-shaped liquid accumulation grooves can be supplemented with reducing liquid at the same time.

[0014] A harmless treatment method of tin refining aluminum slag, comprising the following steps:

[0015] S1: Before use, ensure that the two hopper frames are filled with adsorbent material, and the two ring-shaped liquid accumulation grooves are filled with sufficient desulfurization liquid; one of the hopper frames is located directly above the air pipe, and the sealed cover is closed to exhaust smoke;

[0016] S2: The high-temperature smoke containing particles enters the superimposed spray desulfurization mechanism after the gravity valve cover is washed away by the inlet pipe, at this time, the flue gas will pass through the water belt falling from the edge of the conical rotary spray cap, then contact with the liquid, and a part of the flue gas will contact with the liquid surface under the action of the rotating fan blade and form a reaction, so that the high-temperature flue gas temperature is greatly reduced after two reactions;

[0017] S3: Then contact with the adsorbent material in the hopper frame through the ventilation pipe, further adsorb the sulfur compounds in the flue gas, after a period of use, when the adsorbent material needs to be replaced, only need to stop the exhaust for a short time, and then continue to work by rotating 180 degrees to replace another hopper frame; when it needs to be replaced, only need to stop the exhaust for a short time, and then continue to work after one hopper frame is taken out.

[0018] The beneficial effects in the application are:

[0019] 1. By setting the lower tray 2 and tray 1 at the junction of the middle sleeve and the exhaust top cylinder, cooperating with the ventilation pipe set in the middle to communicate the upper and lower sides, not only a series of driving mechanisms can be set below the tray 1, but also heat dissipation equipment for the driving mechanisms can be increased, and an access hole can be set here for easy maintenance and safeguard work, and in use, the two hopper frames can be used alternately, and when it needs to be replaced, only need to stop the exhaust for a short time, and then continue to work after one hopper frame is taken out, which is convenient to replace and has low failure rate.

[0020] 2. By setting the gravity valve cover hinged on the bevel, not only can prevent gas backflow, but also can reduce the complexity of the inlet as much as possible to prevent the inlet from being blocked due to flue gas fouling and other failures.

[0021] 3. By such setting, not only can the gas be desulfurized by liquid, but also the gas can be cooled, cooperating with the rotating fan blade, which can fan the gas downward to contact with the liquid surface, improving the desulfurization efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a whole structure schematic view of a tin refining aluminum slag harmless treatment system proposed in the application;

[0023] Figure 2 It is a structure schematic view of the hopper frame extraction of a tin refining aluminum slag harmless treatment system proposed in the application;

[0024] Figure 3 It is a side view of a tin refining aluminum slag harmless treatment system proposed in the application;

[0025] Figure 4 It is a tin refining aluminum slag harmless treatment system proposed in the application Figure 2The schematic diagram of the cross-sectional structure along the line A-A;

[0026] Figure 5 A tin refining aluminum slag harmless treatment system is proposed for the present application Figure 3 The schematic diagram of the enlarged structure at the middle B;

[0027] Figure 6 The schematic diagram of the half-sectioned perspective structure of the outer cover system in the tin refining aluminum slag harmless treatment system proposed for the present application;

[0028] Figure 7 The exploded view of the hopper frame and the sealing cover in the tin refining aluminum slag harmless treatment system proposed for the present application;

[0029] Figure 8 The schematic diagram of the perspective structure of the spraying system in the tin refining aluminum slag harmless treatment system proposed for the present application;

[0030] Figure 9 The schematic diagram of the half-sectioned perspective structure of the annular liquid accumulation groove and the vortex fan rotating wheel in the tin refining aluminum slag harmless treatment system proposed for the present application;

[0031] Figure 10 The schematic diagram of the installation position structure of the arc-shaped rotary rack in the tin refining aluminum slag harmless treatment system proposed for the present application;

[0032] Figure 11 The schematic diagram of the bottom perspective structure of the three-claw supporting block in the tin refining aluminum slag harmless treatment system proposed for the present application;

[0033] Figure 12 The assembly drawing of the arc-shaped rotary rack and the tray one in the tin refining aluminum slag harmless treatment system proposed for the present application.

[0034] In the figure: 1, cover system; 2, air inlet pipe; 201, gravity valve cover; 3, middle sleeve; 301, outer barrel pipe; 302, liquid supplement pipe; 4, mark groove; 5, bolt hook rod; 501, anti-off groove; 502, reset spring; 6, sealing cover; 601, sliding bearing; 7, exhaust top cylinder; 701, refueling hole; 8, tray one; 801, air hole one; 802, annular sliding groove; 803, gear groove; 804, rectangular sliding hole; 9, air pipe; 10, lower tray two; 1001, installation barrel; 1002, air hole two; 11, partition; 1101, deceleration motor two; 12, annular liquid accumulation groove; 121, fold bracket; 122, center gear; 123, planetary gear; 124, turbofan rotary wheel; 125, fan blade; 13, conical rotary sprinkling cap; 14, transmission rod; 15, counterweight ball; 16, sprinkling system; 161, external pump; 162, annular spray pipe; 163, suction pipe; 17, connecting rod; 18, cantilever frame; 19, three-claw supporting block; 20, hopper frame; 2001, inward recess; 2002, protruding shaft; 2003, half-bar hole; 21, pressure ring; 22, arc-shaped rotary rack; 2201, positioning jack; 23, blocking net; 24, sliding rail; 25, top insertion rod; 26, bottom plate; 27, driving gear; 28, communicating liquid pipe; 29, motor mounting seat; 30, deceleration motor one. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all embodiments of the present application.

[0036] In the present embodiment, reference is made to Figures 1-12The utility model provides a tin refining aluminum slag harmless treatment system, including the outer cover system 1 that is integrally spliced to the cylindrical structure, and the outer cover system 1 includes base pipe, middle sleeve 3 and exhaust top cylinder 7 from bottom to top in proper order, and the top exhaust hole of exhaust top cylinder 7 is narrowed, and the side surface of base pipe is inserted with air inlet pipe 2, and the circumferential inner wall of middle sleeve 3 and exhaust top cylinder 7 is fixed with lower tray two 10 and tray one 8 respectively near the junction of both, and the middle insertion of lower tray two 10 and tray one 8 has the aeration pipe 9 that communicates both upper and lower sides, the upper surface of tray one 8 is opened with the annular sliding groove 802 that coincides with the vertical center axis of outer cover system 1, and the annular sliding groove 802 is slidably connected with arc-shaped rotary rack 22, and the upper surface of arc-shaped rotary rack 22 is clamped with two hopper frames 20 that are centrally symmetrically placed as a whole with the opening upwards, and the bottom of hopper frame 20 is opened with two symmetrical half strip holes 2003 near the middle, and the size of two half strip holes 2003 is adapted to the top opening size of aeration pipe 9, and the size of the long strip hole combined with two half strip holes 2003 is just connected with the top hole of aeration pipe 9, so that gas contacts with the adsorbing material in hopper frame 20 through two half strip holes 2003, and the inner wall of the bottom of two hopper frames 20 is fixed with the blocking net 23 for plugging half strip hole 2003 to avoid the falling of adsorbing material, the circumferential side wall of exhaust top cylinder 7 is opened with the material changing hole 701 above arc-shaped rotary rack 22, and the hole of material changing hole 701 is clamped with sealing cover 6, and the inside of middle sleeve 3 is provided with spray desulfurization mechanism,

[0037] Specifically, by setting lower tray two 10 and tray one 8 at the junction of middle sleeve 3 and exhaust top cylinder 7, cooperating with aeration pipe 9 set in the middle for communicating upper and lower sides, not only a series of driving mechanisms can be arranged below tray one 8, but also heat dissipation equipment for dissipating heat of the driving mechanisms can be added, and an access hole can be arranged here for facilitating maintenance and guaranteeing work, and in use, two hopper frames 20 can be used alternately, and when replacement is needed, only exhaust needs to be stopped temporarily, and then the machine can continue to operate after one hopper frame 20 is taken out, so that replacement is convenient and failure rate is low.

[0038] Referring to Figure 3 The bottom of base pipe is fixed with closed bottom plate 26, air inlet pipe 2 is opened with bevel cut near the top of bottom plate 26, and gravity valve cover 201 is hinged at the top opening of bevel cut; bottom plate 26 is arranged with discharge hole near the edge, and plug is screwed in the discharge hole; by setting gravity valve cover 201 hinged on bevel cut, not only the effect of preventing gas backflow can be achieved, but also the complexity of air inlet can be reduced as much as possible to prevent air inlet from being blocked due to smoke fouling and other failures.

[0039] Referring to Figure 3 、 Figures 10-12, the circumferential inner wall of the exhaust top cylinder 7 is fixed with a cantilever frame 18 near the lower side of the refueling hole 701, and an electric push rod vertically extending upward is fixed on the cantilever frame 18, and the top end of the electric push rod extending rod is fixed with a three-jaw holding block 19, and the tray 8 is provided with three rectangular slide holes 804 above the three-jaw holding block 19, and the three-jaw holding block 19 is slidably inserted into the three rectangular slide holes 804; the bottom of the hopper frame 20 is provided with a protruding shaft 2002 above the arc-shaped rotary rack 22, and the upper surface of the arc-shaped rotary rack 22 is provided with a positioning insertion hole 2201 corresponding to the protruding shaft 2002 near the two ends; when the hopper frame 20 is pushed into the refueling hole 701, it will first slide on the top of the three-jaw holding block 19 protruding from the rectangular slide hole 804, and after the three-jaw holding block 19 is withdrawn downward, the protruding shaft 2002 at the bottom end of the hopper frame 20 is inserted into the corresponding positioning insertion hole 2201, and then the arc-shaped rotary rack 22 is controlled to rotate 180 degrees, so that the replaced hopper frame 20 is rotated to the upper side of the air pipe 9, and at the same time, another hopper frame 20 to be replaced is also rotated to the refueling hole 701.

[0040] Referring to Figure 3 , Figure 5 , Figure 7 , the bottom of the hopper frame 20 is provided with a recessed groove 2001 near one end edge of the inner wall of the exhaust top cylinder 7, and the vertical inner walls on the opposite sides of the recessed groove 2001 are fixed with slide rails 24, and the same vertical top insertion rod 25 is slidably connected between the slide rails 24 on both sides, and a compression spring is fixed between the top end of the top insertion rod 25 and the top inner wall of the recessed groove 2001; the middle of the sealing cover 6 is embedded with a sliding bearing 601 near the bottom end, and the axis of the sliding bearing 601 is distributed centripetally and points to the bottom end of the top insertion rod 25, and the sliding bearing 601 is slidably connected with a latch hook rod 5, and the both ends of the latch hook rod 5 are provided with anti-dropping grooves 501 and caps respectively, and the caps are provided with mark grooves 4 matched with the positions of the anti-dropping grooves 501, and the caps and the outer side wall of the sealing cover 6 are fixed with a return spring 502; by providing the latch hook rod 5 with anti-dropping grooves 501, when the hopper frame 20 needs to be pulled out, only the latch hook rod 5 needs to be pressed inward, and then the top insertion rod 25 is hooked by the anti-dropping grooves 501, and the sealing cover 6 can be pulled out.

[0041] Referring to Figures 10-12The center holes are formed in the middle of the tray one 8 and the lower tray two 10, and the same installation barrel 1001 with an opening downward barrel structure is fixed and sealed between the two center holes; the air hole one 801 for inserting the air pipe 9 is formed in the center hole of the tray one 8, and the air hole two 1002 for inserting the air pipe 9 is formed in the center hole of the lower tray two 10; the central angle of the arc-shaped rotary rack 22 is equal to two hundred degrees, and the inner arc side of the arc-shaped rotary rack 22 is reserved with teeth, the gear groove 803 penetrating the annular sliding groove 802 is formed in the tray one 8, and the motor mounting seat 29 is fixed on the lower surface of the tray one 8 close to the gear groove 803, the reduction motor one 30 is fixed on the motor mounting seat 29, and the output shaft top of the reduction motor one 30 is fixed with the driving gear 27 meshing with the arc-shaped rotary rack 22; through the above setting, the smooth transposition of the two hopper frames 20 can be realized.

[0042] In the application, the heat dissipation hole is formed in the side of the installation barrel 1001 close to the cantilever frame 18, and the heat dissipation hole is formed in the circumferential outer wall of the middle sleeve 3 close to the motor mounting seat 29, and the exhaust fan is installed in the heat dissipation hole, so that the internal heat can be dissipated in time, and the normal operation of the electrical components is ensured.

[0043] Referring to Figure 6 , the "Ω" shaped structure pressure ring 21 is fixed on the circumferential inner wall of the exhaust top cylinder 7 at the top of the material replacement hole 701, and the pressure ring 21 is located above the two hopper frames 20, and through the setting of the pressure ring 21, the two hopper frames 20 can be prevented from being separated from the limitation of the positioning insertion hole 2201 in the transposition process.

[0044] Referring to Figure 3 , Figure 8 , Figure 9The inner wall of the installation barrel 1001 is fixed with a motor bracket one, and the surface of the motor bracket one is fixed with a speed reducer motor two 1101, and the output shaft top of the speed reducer motor two 1101 is fixed with a vertical downward extending transmission rod 14. The spray desulfurization mechanism in the outer cover system 1 has two sets, and the two sets of spray desulfurization mechanisms share a transmission rod 14. The bottom of the installation barrel 1001 is fixed with a partition plate 11, which plays a heat insulation role. The spray desulfurization mechanism comprises a ring-shaped liquid accumulation groove 12 fixed in the opening upward annular groove structure of the inner wall of the middle sleeve 3. The inner circle top of the ring-shaped liquid accumulation groove 12 is rotatably connected with a volute rotating wheel 124. Three center-symmetrically distributed folded brackets 121 are fixed on the circumferential inner wall of the ring-shaped liquid accumulation groove 12 close to the top. The top of each folded bracket 121 is fixed with a planetary gear 123. The middle of the transmission rod 14 is fixed with a central gear 122 which is meshed with the planetary gears 123. The outer wall of the transmission rod 14 is fixed with a conical rotating sprinkling cap 13 which is downward tapered hat structure near the top of the ring-shaped liquid accumulation groove 12. The circumferential outer wall of the volute rotating wheel 124 is fixed with a fan blade 125 which extends into the edge of the conical rotating sprinkling cap 13. The top of the conical rotating sprinkling cap 13 is provided with a spray system 16. Through such setting, not only can the gas be liquid desulfurized, but also the gas can be cooled. Combined with the rotating fan blade 125, the gas can be fanned downward to contact with the liquid surface, thereby improving the desulfurization efficiency.

[0045] With reference to Figure 3 And Figure 8 The spray system 16 comprises a connecting rod 17 for fixing components. The connecting rods 17 in the upper and lower two spray systems 16 are respectively fixed to the lower surface of the lower tray two 10 and the lower surface of the lower ring-shaped liquid accumulation groove 12. The lower surface of the connecting rod 17 is fixed with an external pump 161. The inlet and outlet of the external pump 161 are respectively fixed with a suction pipe 163 and a ring-shaped spray pipe 162. The bottom of the suction pipe 163 is sleeved with a counterweight ball 15. The bottom end of the upper ring-shaped liquid accumulation groove 12 is inserted with a communication liquid pipe 28. The outer wall of the middle sleeve 3 is reserved with an outer bucket pipe 301 at the top of the upper ring-shaped liquid accumulation groove 12. The outer bucket pipe 301 is inserted with a liquid supplement pipe 302. Through such setting, the two ring-shaped liquid accumulation grooves 12 can be simultaneously supplemented with reducing liquid.

[0046] A harmless treatment method of tin refining aluminum slag, comprising the following steps:

[0047] S1: Before use, ensure that the two hopper frames 20 are filled with adsorbent material, and the two ring-shaped liquid accumulation grooves 12 are filled with sufficient desulfurization liquid. One of the hopper frames 20 is located directly above the air pipe 9. After the sealing cover 6 is closed, the smoke can be discharged.

[0048] S2: the high-temperature smoke containing particles enters the superimposed spray desulfurization mechanism after the gravity valve cover 201 is opened by the inlet pipe 2, at this time the flue gas will pass through the water belt falling from the edge of the conical rotary spray cap 13, then contact with the liquid, and a part of the flue gas contacts with the liquid surface under the action of the rotating fan blade 125 and forms a reaction, so that the high-temperature flue gas temperature is greatly reduced after two reactions;

[0049] S3: then contact with the adsorption material in the hopper frame 20 through the air pipe 9, further adsorb the sulfur compounds in the flue gas, after a period of use, when the adsorption material needs to be replaced, only need to stop the exhaust for a short time, rotate 180 degrees to replace another hopper frame 20 to continue the operation; when it needs to be replaced, only need to stop the exhaust for a short time, after one of the hopper frames 20 is taken out, the machine can continue to operate.

[0050] The above is only the preferred specific implementation of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A harmless treatment system for tin refining aluminum slag, comprising an outer cover system (1) integrally assembled into a cylindrical structure, wherein the outer cover system (1) comprises, from bottom to top, a base tube, an intermediate sleeve (3), and an exhaust top tube (7), characterized in that, An air inlet pipe (2) is inserted into the side of the base tube, and a lower tray 2 (10) and a tray 1 (8) are respectively fixed to the inner circumference of the middle sleeve (3) and the exhaust top tube (7) near their junction. A vent pipe (9) connecting the upper and lower sides of the lower tray 2 (10) and the tray 1 (8) is inserted into the middle. An annular groove (802) coinciding with the vertical central axis of the outer cover system (1) is opened on the upper surface of the tray 1 (8), and an arc-shaped rotary rack (22) is slidably connected in the annular groove (802). The upper surface of the arc-shaped rotary rack (22) is... Two hopper frames (20) with openings facing upwards are attached and arranged symmetrically in the center. The bottom of each hopper frame (20) has two symmetrical semi-strip holes (2003) with a size that matches the opening size of the top of the vent pipe (9). The bottom inner walls of both hopper frames (20) are fixed with baffles (23). The circumferential side wall of the exhaust top cylinder (7) is located above the arc-shaped rotating rack (22) and has a material replacement hole (701). A sealing cover (6) is attached to the opening of the material replacement hole (701). The interior of the intermediate sleeve (3) is equipped with a spray desulfurization mechanism. The bottom of the base tube is fixed with a closed base plate (26). The air inlet pipe (2) has a slanted cut above the base plate (26), and a gravity valve cover (201) is hinged at the top opening of the slanted cut. The base plate (26) has a discharge hole near the edge, and a plug is screwed into the discharge hole. The inner circumference of the exhaust top cylinder (7) is fixed with a cantilever frame (18) below the material exchange hole (701), and an electric push rod extending vertically upward is fixed on the cantilever frame (18). A three-jaw support block (19) is fixed at the top of the electric push rod extension rod. The tray (8) is located above the three-jaw support block (19) and has three rectangular sliding holes (804). The three-jaw support block (19) is slidably inserted into the three rectangular sliding holes (804). The bottom of the hopper frame (20) is reserved with a protruding shaft (2002) above the arc-shaped rotary rack (22), and the upper surface of the arc-shaped rotary rack (22) is provided with positioning insertion holes (2201) corresponding to the protruding shaft (2002) near both ends. The bottom edge of the hopper frame (20) near the inner wall of the exhaust top cylinder (7) has a recessed groove (2001) and slide rails (24) are fixed on the vertical inner walls on both sides of the recessed groove (2001). The slide rails (24) on both sides are slidably connected by the same vertical top rod (25). A compression spring is fixed between the top of the top rod (25) and the top inner wall of the recessed groove (2001). The middle of the sealing cover (6) is embedded near the bottom edge. The sliding bearing (601) is equipped with a sliding bearing (601), and the axis of the sliding bearing (601) is distributed concentrically and points to the bottom end of the top insertion rod (25). The sliding bearing (601) is slidably connected to a pin hook rod (5), and the two ends of the pin hook rod (5) are respectively reserved with anti-detachment grooves (501) and caps. The caps are provided with marking grooves (4) that match the position of the anti-detachment grooves (501). A return spring (502) is fixed between the caps and the outer wall of the sealing cover (6).

2. The harmless treatment system for tin refining aluminum slag according to claim 1, characterized in that, Both the first tray (8) and the second lower tray (10) have a central hole in the middle, and a mounting bucket (1001) with the same downward-facing barrel structure is sealed and fixed between the two central holes; the first tray (8) has a vent hole (801) near the central hole for inserting a vent pipe (9), and the second lower tray (10) has a vent hole (1002) near the central hole for inserting a vent pipe (9); the arc-shaped rotary rack (22) has a central angle of etc. The inner arc side of the arc-shaped rotary rack (22) is reserved with teeth. The tray (8) has a gear groove (803) that communicates with the annular slide groove (802). The lower surface of the tray (8) is fixed with a motor mounting base (29) near the gear groove (803). The motor mounting base (29) is fixed with a reduction motor (30). The top of the output shaft of the reduction motor (30) is fixed with a drive gear (27) that meshes with the arc-shaped rotary rack (22).

3. The harmless treatment system for tin refining aluminum slag according to claim 2, characterized in that, The mounting bucket (1001) has a heat dissipation hole on the side near the cantilever frame (18), and the outer circumference of the middle sleeve (3) is provided with a heat dissipation hole near the motor mounting base (29), and an exhaust fan is installed in the heat dissipation hole.

4. The harmless treatment system for tin refining aluminum slag according to claim 3, characterized in that, The inner circumference of the exhaust top cylinder (7) is fixed with a pressure ring (21) in the shape of an "Ω" at the top of the material exchange hole (701), and the pressure ring (21) is located above the two hopper frames (20).

5. The harmless treatment system for tin refining aluminum slag according to claim 2, characterized in that, The inner wall of the installation tank (1001) is fixed with a motor frame, and a geared motor (1101) is fixed on the surface of the motor frame. The output shaft of the geared motor (1101) is fixed with a vertically downward extending transmission rod (14). There are two sets of spray desulfurization mechanisms on the inner wall of the outer cover system (1), and the two sets of spray desulfurization mechanisms share a transmission rod (14). A partition (11) is fixed at the bottom pipe opening of the installation tank (1001) to provide heat insulation. The spray desulfurization mechanism includes an annular liquid accumulation tank (12) with an upward-opening annular groove structure fixed on the inner wall of the intermediate sleeve (3). A turbine fan wheel (12) is rotatably connected at the top pipe opening of the inner ring of the annular liquid accumulation tank (12). 4) Three folded brackets (121) are fixed near the top of the annular liquid accumulation tank (12), and planetary gears (123) are fixed at the top of each folded bracket (121). A central gear (122) that meshes with the planetary gears (123) is fixed in the middle of the transmission rod (14). A conical spray cap (13) with a downward opening and a conical cap structure is fixed near the top of the annular liquid accumulation tank (12). A fan blade (125) that extends into the edge of the conical spray cap (13) is fixed on the outer wall of the turbine fan (124). A spraying system (16) is provided at the top of the conical spray cap (13).

6. The harmless treatment system for tin refining aluminum slag according to claim 5, characterized in that, The spray system (16) includes a connecting rod (17) for fixing components. The connecting rod (17) in the upper and lower spray systems (16) is fixed to the lower surface of the lower tray (10) and the lower surface of the lower annular liquid collection tank (12). An external pump (161) is fixed to the lower surface of the connecting rod (17). A suction pipe (163) and an annular spray pipe (162) are fixed to the inlet and outlet of the external pump (161). A counterweight ball (15) is sleeved at the bottom of the suction pipe (163). A connecting liquid pipe (28) is inserted into the bottom of the upper annular liquid collection tank (12). An outer barrel pipe (301) is reserved at the top of the upper annular liquid collection tank (12) on the outer wall of the middle sleeve (3). A replenishing liquid pipe (302) is inserted into the outer barrel pipe (301).

7. A method for harmlessly treating tin-refining aluminum dross, comprising the tin-refining aluminum dross harmless treatment system as described in claim 6, characterized in that, Includes the following steps: S1: Before use, ensure that the two hopper frames (20) are filled with adsorbent material and that the two annular liquid collection tanks (12) are filled with sufficient desulfurization liquid; one of the hopper frames (20) is located directly above the ventilation pipe (9), and the smoke can be discharged after the sealing cover (6) is closed; S2: High-temperature flue gas containing particles enters the superimposed spray desulfurization mechanism after the inlet pipe (2) breaks through the gravity valve cover (201). At this time, the flue gas will pass through the water belt dripping from the edge of the conical spray cap (13) and then come into contact with the liquid. A portion of the flue gas will also come into contact with the liquid surface and react under the action of the rotating fan blades (125). After two reactions, the temperature of the high-temperature flue gas is greatly reduced. S3: Afterwards, it will come into contact with the adsorbent material in the hopper frame (20) through the ventilation pipe (9) to further adsorb the sulfur-containing compounds in the flue gas. After a period of use, when the adsorbent material’s ability weakens and needs to be replaced, you only need to briefly stop the exhaust and rotate the arc-shaped rotary rack (22) 180 degrees to replace another hopper frame (20) to continue the operation.

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