A lead-zinc smelting slag recovery and treatment smelting furnace

Abstract

The present invention belongs to the technical field of smelting slag recovery and treatment, and provides a lead-zinc smelting slag recovery and treatment furnace, comprising: a chassis; a draft tube; and an aeration tube. In the present invention, raffinate is introduced into a treatment barrel via a feed tube, and the raffinate located in the bottom area of ​​the treatment barrel's inner cavity is pumped into the chassis via a plurality of pump bodies. The raffinate enters the draft tube and flows along the draft tube to an area below the raffinate liquid surface. Aeration is then performed in the draft tube in conjunction with an aerator. As the raffinate flows upward, bubbles generated by the aeration rise with the raffinate, and the upward-flowing raffinate provides momentum for the bubbles to rise. This allows the bubbles to contact the raffinate and adsorb the organic phase, effectively preventing the high viscosity of the raffinate from hindering their rise and preventing the adhesion of oil droplets, thereby improving flotation efficiency and, in turn, oil removal efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of smelting slag recovery and treatment, and in particular relates to a smelting furnace for recovery and treatment of lead-zinc smelting slag. Background Art

[0002] Currently, all lead and zinc smelting slag produced by the smelting system is sold externally, and the price-value metals in the slag are not effectively recovered. The copper, lead, and indium contained in the slag are not fully recycled and utilized, failing to fully leverage the advantages of the non-ferrous metal circular economy and impacting economic benefits. To recover the copper, lead, and indium in the slag, the lead and zinc smelting slag is pyrometallurgically smelted to produce blister copper and indium-rich dust. The indium-rich dust is then subjected to a hydrometallurgical process to produce indium ingots. When the indium-rich smoke dust undergoes a wet process, the indium-rich smoke dust from the slag recovery workshop is fed into a low-acid leaching tank after metering, and concentrated sulfuric acid and hydrochloric acid are added at the same time. After the leached slurry is filtered, the filtrate is sent for two subsequent purifications. The purified liquid is pumped into the pre-extraction liquid tank, and then pumped into the P204 extraction box by the pre-extraction liquid pump. After the extraction is completed, part of the organic phase (P204) enters the raffinate. Since the raffinate needs to be sent to sulfuric acid wastewater for treatment, the raffinate containing P204 may cause hydrolysis, emulsification, phosphorus pollution and metal complexation after entering the sulfuric acid wastewater, which significantly increases the difficulty of wastewater treatment. At present, in order to minimize the entrainment of organic phase (P204) in the raffinate, a raffinate oil removal device is designed.

[0003] To address the above technical issues, the applicant has identified several prior art technologies, such as patent publication number CN221513586U, which describes a raffinate deoiling device. Its primary technical approach involves first activating the flotation mechanism and starting the compressor, allowing gas from the gas storage container to flow into the air chamber of the flotation body. The gas in the air chamber is then discharged into the deoiling chamber through multiple flotation holes. Raffinate is then introduced into the deoiling chamber through the liquid inlet. The gas discharged into the deoiling chamber forms bubbles within the raffinate. Buoyancy forces the bubbles upward, lifting the oil molecules in the raffinate and allowing them to float as close to the surface as possible. Analysis by the applicant reveals a drawback of this technical solution: the presence of an organic phase (P2O4) and some metal ions in the raffinate results in a relatively high overall viscosity. This high viscosity hinders the rise of bubbles and the adhesion of oil droplets, reducing flotation efficiency and, consequently, deoiling efficiency. Summary of the Invention

[0004] The present invention aims to provide a smelting furnace for recovering and treating lead-zinc smelting slag, aiming to solve the technical problem in the prior art of using flotation to remove oil from raffinate, in which the overall viscosity of the raffinate is relatively high, thereby hindering the rise of bubbles and the adhesion of oil droplets, thereby reducing the flotation efficiency and the oil removal efficiency.

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] A lead-zinc smelting slag recovery and treatment smelting furnace, comprising a treatment barrel and a feed pipe and a discharge pipe installed on the treatment barrel, and further comprising:

[0007] Chassis: a plurality of chassis are provided at the bottom of the inner cavity of the treatment barrel, and a plurality of pump bodies are installed through the periphery of the chassis;

[0008] A flow guide pipe is vertically connected to the chassis, and extends into the chassis. The raffinate in the treatment barrel is extracted through the pump body, and the raffinate enters the chassis and is then discharged through the top of the flow guide pipe;

[0009] An aeration pipe is installed at the bottom of the treatment barrel, and a plurality of aeration cylinders are provided on the aeration pipe. The aeration cylinders pass through the treatment barrel and the chassis and extend into the guide pipe.

[0010] As a preferred embodiment of the above technical solution, a portion of the guide tube located inside the chassis is provided with a plurality of through holes, and filter plates are installed at the through holes.

[0011] As a preferred embodiment of the above technical solution, an arc-shaped plate is provided in the guide tube, the arc-shaped plate is located above the explosion cylinder and the plurality of through holes, and a plurality of liquid outlet holes are vertically opened on the arc-shaped plate.

[0012] As a preferred embodiment of the above technical solution, a floating plate is installed at the top of the guide tube, and the floating plate floats on the surface of the raffinate. A connecting tube is provided at the bottom of the floating plate, and the connecting tube is coaxial with the guide tube. The connecting tube is connected to a guide ring through a number of connecting rods, and the guide ring is sleeved on the outer periphery of the guide tube.

[0013] As a preferred embodiment of the above technical solution, the bottom end of the connecting tube is provided with an outwardly inclined wedge ring, and the top of the guide tube is provided with an inwardly inclined conical tube.

[0014] As a preferred embodiment of the above technical solution, a conical cavity is opened in the floating plate, and the conical cavity is connected to the connecting tube. A number of separation tubes are connected to the middle section of the inclined surface of the conical cavity. A collecting tube is installed in the processing barrel, and the output end of the collecting tube extends through the outside of the processing barrel. A number of sleeves are provided on the collecting tube, and the separation tubes are movably sleeved in the sleeves.

[0015] As a preferred embodiment of the above technical solution, a plurality of pounding pieces are provided in the connecting cylinder.

[0016] As a preferred embodiment of the above technical solution, a stirring assembly is installed on the floating plate, and the stirring assembly includes:

[0017] A mounting frame, wherein the mounting frame is fixed in the guide tube;

[0018] A rotating rod is rotatably mounted on the mounting frame, and the top end of the rotating rod passes through the floating plate;

[0019] A driving impeller is fixed to the bottom end of the rotating rod;

[0020] The stirring blades are provided at the top of the rotating rod with a plurality of curved connecting plates, and the bottom ends of the connecting plates are fixed with stirring blades, and the stirring blades are located below the liquid level of the raffinate.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. In the present invention, the raffinate is introduced into the treatment barrel through a feed pipe, and the raffinate located in the bottom area of ​​the treatment barrel cavity is pumped into the bottom pan by a plurality of pump bodies. The raffinate enters the guide pipe and flows along the guide pipe to the area below the raffinate liquid level. The raffinate is aerated in the guide pipe in conjunction with the aeration cylinder. As the raffinate flows upward, the bubbles generated by the aeration rise with the raffinate. The upward flowing raffinate provides the upward momentum for the bubbles. In this way, the bubbles can contact the raffinate and adsorb the organic phase, effectively preventing the high viscosity of the raffinate from hindering the rise of the bubbles and the adhesion of oil droplets, thereby improving the flotation efficiency and thus the oil removal efficiency.

[0023] 2. In the present invention, during the continuous aeration process of the explosion cylinder, since the treatment barrel is in a sealed state, the pressure of the raffinate increases and the temperature gradually increases; increasing the pressure can make the bubbles smaller, increase the contact area between the bubbles and the raffinate, and thus improve the oil removal effect; increasing the temperature can gradually reduce the viscosity of the raffinate, thereby effectively preventing the high viscosity of the raffinate from hindering the rise of bubbles and the adhesion of oil droplets; in addition, increasing the temperature can reduce the surface tension of the raffinate, allowing the bubbles to disperse and exist stably in the raffinate, and at the same time accelerate the movement speed of molecules, promote the diffusion and adsorption of the organic phase to the bubble surface, and further improve the oil removal efficiency;

[0024] 3. In the present invention, when bubbles pass through the liquid outlet holes, their size becomes smaller or they split into several small bubbles. Smaller bubbles have a larger specific surface area and can more easily adhere to the organic phase, thereby improving the flotation efficiency and thus the oil removal efficiency. In addition, since the sizes of the liquid outlet holes are consistent, the size of the bubbles that move upward to the top of the curved plate is small and uniform, further improving the flotation efficiency.

[0025] 4. In the present invention, since the bubbles are constantly rising, the pressure in the raffinate decreases as the rising height increases, causing the bubbles to slowly expand and grow. When the bubbles approach the raffinate surface, they may burst due to factors such as the surface tension of the raffinate and the pressure difference between the inside and outside of the bubbles. If the bubbles burst, the organic phase adsorbed on the bubble surface may be released as the bubbles burst, forming tiny droplets (called "aerosols" or "droplets"). The energy released at the moment of bursting may cause some organic phase droplets to splash into the surrounding environment. In the prior art, these splashed organic phase droplets may splash onto the inner wall of the container, thereby reducing the oil removal efficiency. Compared with the prior art, the present invention covers the raffinate surface with a floating plate and a connecting tube, effectively preventing the splashing of organic phase droplets, thereby effectively preventing the reduction of oil removal efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 Schematic diagram of the internal structure of the present invention;

[0028] Figure 3 Schematic diagram of several diversion pipe structures;

[0029] Figure 4 Schematic diagram of the internal structure of the guide tube;

[0030] Figure 5 for Figure 4 A in the middle is an enlarged structural diagram;

[0031] Figure 6 for Figure 4 The enlarged structural diagram at B in the middle;

[0032] Figure 7 Schematic diagram of the stirring assembly structure;

[0033] Figure 8 Schematic diagram of the collection tube structure.

[0034] In the picture:

[0035] 1. Treatment barrel; 2. Chassis; 21. Pump body; 3. Guide pipe; 31. Through hole; 32. Filter plate; 33. Curved plate; 34. Conical pipe; 4. Aeration pipe; 41. Explosion cylinder; 5. Float; 51. Connecting cylinder; 52. Wedge ring; 53. Conical cavity; 54. Separation pipe; 55. Demolition piece; 56. Connecting rod; 57. Guide ring; 6. Agitation assembly; 61. Mounting frame; 62. Rotating rod; 63. Driving impeller; 64. Connecting plate; 65. Agitation blade; 7. Collection pipe; 71. Casing; 8. Feed pipe; 9. Discharge pipe. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0037] The specific implementation of the present invention is described in detail below with reference to specific embodiments.

[0038] like Figure 1-Figure 5 As shown, a lead-zinc smelting slag recovery and treatment smelting furnace includes a treatment barrel 1 and a feed pipe 8 and a discharge pipe 9 installed on the treatment barrel 1, and also includes:

[0039] Chassis 2: Several chassis 2 are provided at the bottom of the inner cavity of the treatment barrel 1, and several pump bodies 21 are installed through the periphery of the chassis 2;

[0040] The guide pipe 3 is vertically connected to the bottom plate 2. The guide pipe 3 extends into the bottom plate 2 and extracts the raffinate in the treatment barrel 1 through the pump body 21. The raffinate enters the bottom plate 2 and is then discharged through the top of the guide pipe 3.

[0041] An aeration pipe 4 is installed at the bottom of the treatment barrel 1 , and a plurality of aeration cylinders 41 are provided on the aeration pipe 4 . The aeration cylinders 41 pass through the treatment barrel 1 and the chassis 2 and extend into the guide pipe 3 .

[0042] In actual application, the raffinate is introduced into the treatment barrel 1 through the feed pipe 8. The raffinate located in the bottom area of ​​the inner cavity of the treatment barrel 1 is pumped into the bottom pan 2 by a plurality of pump bodies 21. The raffinate enters the draft tube 3 and flows along the draft tube 3 to the area below the raffinate liquid level. The draft tube 3 is aerated in cooperation with the aerator 41. As the raffinate flows upward, the bubbles generated by the aeration rise with the raffinate. The upward flowing raffinate provides the upward momentum for the bubbles. In this way, when the bubbles can contact the raffinate and adsorb the organic phase, the high viscosity of the raffinate is effectively prevented from hindering the bubbles from rising and the oil droplets from adhering, thereby improving the flotation efficiency and thus the oil removal efficiency.

[0043] During the continuous aeration process of the explosion cylinder 41, since the treatment barrel 1 is in a sealed state, the pressure of the raffinate increases and the temperature gradually increases. Increasing the pressure can make the bubbles smaller, increase the contact area between the bubbles and the raffinate, and thus improve the oil removal effect. Increasing the temperature can gradually reduce the viscosity of the raffinate, thereby effectively preventing the high viscosity of the raffinate from hindering the rise of bubbles and the adhesion of oil droplets. In addition, increasing the temperature can reduce the surface tension of the raffinate, allowing the bubbles to disperse and exist stably in the raffinate, and at the same time accelerate the movement speed of molecules, promote the diffusion and adsorption of the organic phase to the bubble surface, and further improve the oil removal efficiency.

[0044] The raffinate flows from the bottom end to the top end of the draft tube 3, so that the raffinate in the treatment barrel 1 is in an up and down circulation state, so that all the raffinate can come into contact with the bubbles, thereby improving the effect of the bubbles adsorbing the organic phase and further improving the oil removal efficiency;

[0045] The pump 21 controls the upward flow rate of the raffinate to match the rising velocity of the bubbles. If the raffinate flow rate is too high, the bubbles may be carried away before they have time to fully interact with the raffinate. If the flow rate is too slow, treatment efficiency will be affected. A suitable flow rate ensures that the bubbles and raffinate have sufficient time to interact, thereby improving oil removal effectiveness.

[0046] Furthermore, a portion of the flow guide pipe 3 located inside the chassis 2 is provided with a plurality of through holes 31 , and filter plates 32 are installed at the through holes 31 .

[0047] In actual application of this embodiment, the filter plate 32 can filter some metal ions in the raffinate, effectively preventing these metal ions from adhering to the surface of the bubbles, preventing the organic phase floating on the liquid surface from containing metal ions, avoiding reducing the purity of the organic phase, and avoiding reducing the oil removal efficiency.

[0048] Furthermore, an arc-shaped plate 33 is provided in the guide tube 3 . The arc-shaped plate 33 is located above the explosion cylinder 41 and the plurality of through holes 31 . A plurality of liquid outlet holes are vertically opened on the arc-shaped plate 33 .

[0049] In actual application of this embodiment, the raffinate is blocked by the curved plate 33 after entering the draft tube 3, thereby slowing down the flow rate of the raffinate. This allows the bubbles generated by the aeration cylinder 41 to have sufficient time to contact the raffinate, thereby increasing the contact probability and adhesion efficiency of the bubbles with the organic phase, thereby improving the oil removal efficiency.

[0050] When the bubbles pass through the liquid outlet hole, the size of the bubbles becomes smaller or they are divided into several small bubbles. The smaller bubbles have a larger specific surface area and can more easily adhere to the organic phase, thereby improving the flotation efficiency and further improving the oil removal efficiency. In addition, since the sizes of the several liquid outlet holes are consistent, the size of the bubbles that move up to the top of the arc plate 33 is small and uniform, thereby further improving the flotation efficiency.

[0051] like Figure 4-Figure 8 As shown, a floating plate 5 is installed at the top of the guide tube 3, and the floating plate 5 floats on the surface of the raffinate. A connecting tube 51 is provided at the bottom of the floating plate 5. The connecting tube 51 is coaxial with the guide tube 3. The connecting tube 51 is connected to a guide ring 57 through a plurality of connecting rods 56. The guide ring 57 is sleeved on the outer periphery of the guide tube 3.

[0052] In one aspect of this embodiment, the floating plate 5 floats on the liquid surface of the raffinate, and the bottom of the floating plate 5 is flush with the liquid surface of the raffinate.

[0053] In actual application of this embodiment, since the bottom of the connecting cylinder 51 is hollow and connected to the raffinate in the processing barrel 1, according to the principle of communicating vessels, the liquid level of the raffinate in the connecting cylinder 51 is consistent with the liquid level of the raffinate in the processing barrel 1. In this way, the organic phase on the liquid surface of the raffinate in the connecting cylinder 51 will enter the floating plate 5, thereby facilitating the subsequent collection of the organic phase. Compared with the prior art that collects the organic phase on the larger raffinate liquid surface, the area of ​​the organic phase in the present invention is relatively small, which facilitates collection and effectively prevents the raffinate from being collected along with the organic phase, thereby improving the purity of the collected organic phase and further improving the oil removal efficiency.

[0054] The guide ring 57 guides the float plate 5 so that it moves only in the vertical direction. This allows the position of the float plate 5 to change with the level of the raffinate, so that the organic phase above the level of the raffinate in the connecting cylinder 51 is always located within the float plate 5, thereby facilitating the subsequent collection of the organic phase.

[0055] Since the bubbles are constantly rising, the pressure in the raffinate will decrease as the height of their rise increases, causing the bubbles to slowly expand and grow. When the bubbles approach the surface of the raffinate, the bubbles may burst due to factors such as the surface tension of the raffinate and the pressure difference between the inside and outside of the bubbles. If the bubbles burst, the organic phase adsorbed on the surface of the bubbles may be released as the bubbles burst, forming tiny droplets (called "aerosols" or "droplets"). The energy released at the moment of bursting may cause some organic phase droplets to splash into the surrounding environment. In the prior art, these splashed organic phase droplets may splash onto the inner wall of the container, thereby reducing the oil removal efficiency. Compared with the prior art, the present invention covers the surface of the raffinate by using the floating plate 5 and the connecting tube 51, effectively preventing the splashing of organic phase droplets, thereby effectively preventing the reduction of oil removal efficiency.

[0056] Furthermore, a wedge-shaped ring 52 tilted outward is provided at the bottom end of the connecting tube 51 , and a conical tube 34 tilted inward is provided at the top of the flow guide tube 3 .

[0057] In one aspect of this embodiment, the minimum diameter of the tapered tube 34 is smaller than the maximum diameter of the wedge ring 52 .

[0058] In actual application of this embodiment, the raffinate and bubbles discharged from the draft tube 3 pass through the tapered tube 34 and the wedge ring 52 into the connecting tube 51, effectively preventing the bubbles from moving outside the connecting tube 51, thereby improving the oil removal efficiency;

[0059] When the raffinate and bubbles pass through the conical tube 34, the inner diameter of the top of the conical tube 34 is smaller than the inner diameter of the draft tube 3, so the raffinate and bubbles move upward faster, thereby further ensuring that the bubbles move into the connecting tube 51, further improving the oil removal efficiency.

[0060] Furthermore, a conical cavity 53 is opened in the floating plate 5, and the conical cavity 53 is connected to the connecting tube 51. A plurality of separation tubes 54 are connected to the middle section of the inclined surface of the conical cavity 53. A collecting tube 7 is installed in the processing barrel 1. The output end of the collecting tube 7 extends through the outside of the processing barrel 1. A plurality of sleeves 71 are provided on the collecting tube 7, and the separation tubes 54 are movably sleeved in the sleeves 71.

[0061] In actual application of this embodiment, when the height of the organic phase above the raffinate level in the connecting cylinder 51 exceeds the separation tube 54, the organic phase will enter the separation tube 54 and then be discharged through the sleeve 71 and the collection tube 7, thereby improving the oil removal efficiency; the separation tube 54 is movably sleeved in the sleeve 71 so that the discharge of the organic phase is not affected when the floating plate 5 moves up and down.

[0062] Furthermore, a plurality of pounding pieces 55 are provided in the connecting tube 51 .

[0063] In one aspect of this embodiment, the breaker 55 may be composed of a plurality of inclined and irregularly arranged rod-shaped structures, and the ends of the rod-shaped structures are sharp.

[0064] In actual application of this embodiment, when the bubbles move to the smashing piece 55, the smashing piece 55 can puncture the bubbles, thereby preventing the bubbles from bursting when they move to the surface of the raffinate, preventing the organic phase and the raffinate from splashing into the separation tube 54, and preventing the raffinate from being discharged together with the organic phase, thereby ensuring that the organic phase can be completely collected and improving the oil removal efficiency.

[0065] like Figure 3 and Figure 7 As shown, a stirring assembly 6 is installed on the floating plate 5, and the stirring assembly 6 includes:

[0066] A mounting frame 61 is fixed inside the guide tube 3;

[0067] A rotating rod 62 is rotatably mounted on the mounting frame 61, and the top end of the rotating rod 62 passes through the floating plate 5;

[0068] A driving impeller 63 is fixed to the bottom end of the rotating rod 62;

[0069] Stirring blades 65. The top of the rotating rod 62 is provided with a plurality of curved connecting plates 64. The bottom end of the connecting plate 64 is fixed with the stirring blades 65. The stirring blades 65 are located below the liquid level of the raffinate.

[0070] In actual application of this embodiment, when the raffinate flows upward in the draft tube 3, the raffinate drives the driving impeller 63 to rotate, thereby rotating the rotating rod 62, and the rotating rod 62 drives the connecting plates 64 and the stirring blades 65 to rotate. The raffinate outside the draft tubes 3 is stirred by the stirring blades 65, so that the organic phase on the surface of the raffinate outside the draft tubes 3 can form a short emulsified state under stirring. As the raffinate circulates up and down, the raffinate drives the organic phase to move to the bottom of the inner cavity of the processing barrel 1, so that the organic phase can enter the draft tube 3, so that all the organic phase in the raffinate can finally be gathered in the floating plate 5, thereby improving the oil removal efficiency and effect.

[0071] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and modifications fall within the scope of the invention as claimed.

Claims

1. A lead-zinc smelting slag recovery and treatment smelting furnace, comprising a treatment barrel (1) and a feed pipe (8) and a discharge pipe (9) mounted on the treatment barrel (1), characterized in that: Also includes: Chassis (2), a plurality of chassis (2) are provided at the bottom of the inner cavity of the treatment barrel (1), and a plurality of pump bodies (21) are installed through the periphery of the chassis (2); A flow guide pipe (3) is vertically connected to the chassis (2), and the flow guide pipe (3) extends through the chassis (2) to extract the raffinate in the treatment barrel (1) through the pump body (21), so that the raffinate enters the chassis (2) and is then output through the top of the flow guide pipe (3); An aeration pipe (4), the bottom of the treatment barrel (1) is provided with an aeration pipe (4), and a plurality of aeration cylinders (41) are provided on the aeration pipe (4), and the aeration cylinders (41) penetrate the treatment barrel (1) and the chassis (2) and extend into the guide pipe (3); A floating plate (5) is installed at the top of the guide tube (3), and the floating plate (5) floats on the surface of the raffinate. A connecting tube (51) is provided at the bottom of the floating plate (5), and the connecting tube (51) is coaxial with the guide tube (3). The connecting tube (51) is connected to a guide ring (57) through a plurality of connecting rods (56), and the guide ring (57) is sleeved on the outer periphery of the guide tube (3).

2. The lead-zinc smelting slag recovery and treatment smelting furnace according to claim 1, characterized in that: The portion of the flow guide pipe (3) located inside the chassis (2) is provided with a plurality of through holes (31), and filter plates (32) are installed at the through holes (31).

3. The lead-zinc smelting slag recovery and treatment smelting furnace according to claim 1, characterized in that: An arc-shaped plate (33) is provided in the guide tube (3), and the arc-shaped plate (33) is located above the explosion cylinder (41) and the plurality of through holes (31). The arc-shaped plate (33) is vertically provided with a plurality of liquid outlet holes.

4. The lead-zinc smelting slag recovery and treatment smelting furnace according to claim 1, characterized in that: The bottom end of the connecting tube (51) is provided with an outwardly inclined wedge-shaped ring (52), and the top of the flow guide tube (3) is provided with an inwardly inclined conical tube (34).

5. The lead-zinc smelting slag recovery and treatment smelting furnace according to claim 1, characterized in that: A conical cavity (53) is provided in the floating plate (5), the conical cavity (53) is communicated with the connecting tube (51), a plurality of separation tubes (54) are connected to the middle section of the inclined surface of the conical cavity (53), a collecting tube (7) is installed in the processing barrel (1), the output end of the collecting tube (7) extends through the outside of the processing barrel (1), a plurality of sleeves (71) are provided on the collecting tube (7), and the separation tubes (54) are movably sleeved in the sleeves (71).

6. The lead-zinc smelting slag recovery and treatment smelting furnace according to claim 1, characterized in that: A plurality of pounding pieces (55) are provided in the connecting cylinder (51).

7. The lead-zinc smelting slag recovery and treatment smelting furnace according to claim 1, characterized in that: A stirring assembly (6) is mounted on the floating plate (5), and the stirring assembly (6) comprises: A mounting frame (61), wherein the mounting frame (61) is fixed inside the flow guide tube (3); A rotating rod (62), the rotating rod (62) is rotatably mounted on the mounting frame (61), and the top end of the rotating rod (62) passes through the floating plate (5); A driving impeller (63), wherein the bottom end of the rotating rod (62) is fixed with the driving impeller (63); A stirring blade (65), wherein a plurality of curved connecting plates (64) are provided at the top end of the rotating rod (62), and a stirring blade (65) is fixed at the bottom end of the connecting plate (64), and the stirring blade (65) is located below the liquid level of the raffinate.

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