CN112108739A - Self-adaptive liquefaction covering reduction type removing method for tin-lead alloy oxidation slag - Google Patents
Self-adaptive liquefaction covering reduction type removing method for tin-lead alloy oxidation slag Download PDFInfo
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- CN112108739A CN112108739A CN202010975038.6A CN202010975038A CN112108739A CN 112108739 A CN112108739 A CN 112108739A CN 202010975038 A CN202010975038 A CN 202010975038A CN 112108739 A CN112108739 A CN 112108739A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
- B23K3/08—Auxiliary devices therefor
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B13/00—Obtaining lead
- C22B13/02—Obtaining lead by dry processes
- C22B13/025—Recovery from waste materials
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B25/00—Obtaining tin
- C22B25/02—Obtaining tin by dry processes
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B25/00—Obtaining tin
- C22B25/06—Obtaining tin from scrap, especially tin scrap
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/001—Dry processes
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/04—Working-up slag
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Abstract
The invention discloses a self-adaptive liquefaction covering reduction type removing method of tin-lead alloy oxidized slag, belonging to the technical field of electronic product welding, which can realize innovative introduction of computer vision analysis, position the oxidized slag area on a workpiece, then cover the oxidized slag area by using a slag covering disc, trigger the action of releasing a magnetic reducing agent by self-adapting the characteristics of the oxidized slag, carry out reduction reaction with tin-lead oxide under the heating condition, reduce the tin-lead into tin-lead, and is favorable for forming continuous liquid level to cover the oxidized slag area by the action of net-shaped distributed liquid and the magnetism of the liquid, thereby not only improving the sufficiency and efficiency of the reduction reaction, but also effectively inhibiting the escape of lead fume, timely clearing reaction products while reducing and removing the oxidized slag, and accelerating the removal and recovery by using the magnetic characteristics, can effectively protect the environment while efficiently removing the tin-lead alloy oxidation slag.
Description
Technical Field
The invention relates to the technical field of electronic product welding, in particular to a self-adaptive liquefaction covering reduction type removing method for tin-lead alloy oxidation slag.
Background
Solder is a generic term for metal alloy materials used to add to welds, weld overlays and braze joints. Including welding wires, welding rods and brazing filler metal.
The melting temperature of the welding flux is usually not lower than the solidus line of the base metal, and the chemical composition, the mechanical property and the thermal property of the welding flux are relatively close to those of the base metal, such as various welding rods, flux-cored wires and the like. The strength of the welding seam is not lower than that of the base material; the melting temperature of the brazing filler metal is required to be lower than the solidus line of the base metal, the chemical components of the brazing filler metal are far away from the base metal, brazing seams are fine and precise in size, but most of the brazing seams have strength lower than that of the base metal, and the corrosion resistance is poor. When the solder is used in arc welding, the temperature often exceeds the base material and the solder, and the soft and hard parts do not exist; the brazing filler metal in the brazing filler metal, such as copper-zinc material (copper-zinc alloy) and silver brazing filler metal (silver-copper alloy), has high brazing joint strength and is mainly used for connecting metal components with high strength requirements, and the soft brazing filler metal, such as soldering tin (alloy mainly containing tin and lead), is welded into small joints with low joint strength and is mainly used for connecting small joints without excessively requiring strength, such as joints of electronic instruments, instruments and household appliance electronic circuits.
The tin-lead alloy solder is widely applied to the manufacturing process of electronic information products, and a large amount of oxidation slag is generated due to high-temperature oxidation in the welding process. The main component of the oxidizing slag is tin-lead oxide, which belongs to lead-containing hazardous solid waste, and the disordered discharge of the oxidizing slag has great harm to human beings and the environment, and is the category of the hazardous solid waste forcibly managed by the state.
The method for treating the waste welding slag generally adopts a direct heating separation method, the recovery rate of the treatment method is low, the lead fume is volatilized and directly enters the atmosphere to cause secondary environmental pollution, the use of the method is forbidden at present, the existing pickling and polishing have the defect of low efficiency, the pickling effect is not easy to control, meanwhile, the waste liquid easily causes harm to the environment, the polishing universality is poor, the cost is high, and most of the waste liquid needs manual operation.
Disclosure of Invention
1. Technical problem to be solved
Aiming at the problems in the prior art, the invention aims to provide a self-adaptive liquefaction covering reduction type removing method for tin-lead alloy oxidized slag, which can realize innovative introduction of computer vision analysis, position the oxidized slag area on a workpiece, cover the oxidized slag area by using a slag covering disc, trigger the action of releasing a magnetic reducing agent by automatically adapting to the characteristics of the oxidized slag, carry out reduction reaction with tin-lead oxide under the heating condition, reduce the oxidized slag into tin-lead, and is favorable for forming a continuous liquid level to cover the oxidized slag area by the action of net-shaped distributed liquid and the magnetism of the liquid, thereby not only improving the sufficiency and the efficiency of the reduction reaction, but also effectively inhibiting the escape of lead fume, timely clearing reaction products while reducing and removing the oxidized slag, and accelerating the removal and recovery by using the magnetic characteristics, can effectively protect the environment while efficiently removing the tin-lead alloy oxidation slag.
2. Technical scheme
In order to solve the above problems, the present invention adopts the following technical solutions.
A self-adaptive liquefaction covering reduction type removing method for tin-lead alloy oxidation slag comprises the following steps:
s1, loading the workpiece to be subjected to oxidation slag removal onto a processing platform, and determining an oxidation slag area through computer vision analysis;
s2, calculating coordinate data of the oxidizing slag area, feeding the coordinate data back to the three-axis driving system, and moving the slag covering disc to hover above the oxidizing slag area;
s3, the processing platform heats the oxidizing slag area in advance, the slag covering disc descends to contact with the workpiece after the oxidizing slag area is heated to a proper temperature, and the removing action is triggered;
s4, the slag covering disc automatically induces the oxidizing slag and releases the magnetic reducing agent, the oxidizing slag is reduced at a heating temperature, and redundant reducing agent and tin and lead are recovered through sweeping;
and S5, automatically stopping after the removal of the oxidizing slag area is finished, moving to the next oxidizing slag area by the three-axis driving system, and repeating the process until all the oxidizing slag is removed.
Furthermore, in the step S1, before loading, small-area oxidation slag and dirt on the workpiece can be pre-cleaned, and the computer vision analysis automatically ignores that the coverage area is less than 0.5m2The oxidizing slag can avoid the computer vision caused by stains and the likeThe interference of analysis causes misjudgment, and meanwhile, the oxidation slag in a small area can be removed in a manual polishing mode, so that the cost and the time can be saved.
Further, the slag covering disc in the step S2 includes a main disc body, a plurality of liquid storage bags and adaptive liquid releasing pipes, the lower end of the main disc body is provided with a processing tank, the liquid storage bags are connected to the top wall of the processing tank, the adaptive liquid releasing pipes are connected to the lower end of the liquid storage bags and communicated therewith, the lower end of the adaptive liquid releasing pipes is connected with a plurality of communicated multipoint sensing balls, a distribution net wire is connected between the adjacent multipoint sensing balls, two ends of the distribution net wire both penetrate and extend to the inner sides of the multipoint sensing balls, a plurality of evenly distributed electromagnets are embedded and installed at the lower end of the inner side of the main disc body, and the multipoint sensing balls autonomously sense the oxidizing slag, so that the adaptive liquid releasing pipes trigger the action of releasing the magnetic reducing agent, the distribution net wire is used for distribution, and meanwhile, the complete liquid level covering is facilitated to be formed, and the sufficiency and efficiency, the electromagnet can accelerate the stripping and the separation of the oxidation slag by utilizing the impact effect through generating the magnetic attraction effect on the magnetic particles in the magnetic reducing agent, and can be recycled.
Furthermore, terminal surface and main dish body lower extreme terminal surface keep on same height under the multiple spot perception ball, the distribution net silk includes a pair of drain silk and connects the spacer wire between the drain silk, and the drain silk is connected with adjacent multiple spot perception ball respectively, and the drain silk can guide the distribution to magnetic reducing agent, is favorable to forming complete liquid level, and middle spacer wire is used for cutting off the guide, avoids appearing adjacent multiple spot perception ball because the phenomenon of high difference also can appear releasing magnetic reducing agent jointly, avoids magnetic reducing agent's waste and causes the injury to the butt weld.
Further, the self-adaptive liquid releasing pipe comprises a main plastic pipe, an auxiliary silica gel pipe, an extension rod and a plugging ball, the plastic main pipe is connected with the lower end of the liquid storage bag, the silica gel auxiliary pipe is connected between the plastic main pipe and the multipoint sensing ball, the extension rod is inserted in the silica gel auxiliary pipe and connected with the upper end of the multi-point sensing ball, the plugging ball is positioned in the plastic main pipe and connected with the upper end of the extension rod, the inside of the plastic main pipe is provided with a liquid control hole with the diameter gradually reduced from top to bottom, and the oxidation slag is sensed by a multi-point sensing ball, thereby controlling the height of the blocking ball through the extension rod, only when the multipoint sensing ball and the lower end surface of the main disc body keep the same height, the blocking ball closes the liquid control hole, under other conditions, the magnetic reducing agent in the liquid storage bag can reach the multipoint sensing ball through the gap to be distributed, so that the self-adaptive removal of the oxidizing slag is formed.
Furthermore, the liquid guide wire is made of a water guide material, the isolating wire is made of a water-resisting material, the lower end of the isolating wire is connected with a plurality of accelerating rods which are uniformly distributed, the accelerating rods are used for being matched with the magnetic reducing agent to form local brushing action, the sufficiency and the efficiency of reduction reaction can be improved, meanwhile, reaction products can be timely separated, and the subsequent reduction reaction is prevented from being blocked.
Further, the stick inlays silk and steel wire brush ball including helping the bullet pipe, magnetism, helps bullet union coupling in isolation silk lower extreme, steel wire brush ball connects in helping the bullet pipe lower extreme, magnetism inlays the silk and inlays to be connected in helping the bullet intraductal, helps the bullet pipe be used for providing elasticity thereby can so that the stick whole high-frequency vibration action can appear with higher speed, magnetism inlays the silk and produces unstable magnetic attraction effect based on the distribution characteristics of magnetic reducing agent to provide the source power of stick vibration with higher speed, steel wire brush ball then scrubs the oxidation slag region with higher speed at the vibration in-process of stick with higher speed.
Further, the heating temperature in the step S3 is 200-.
Further, the magnetic reducing agent in step S5 is a mixture of a non-toxic or low-toxic organic reducing agent and magnetic nano iron oxide powder, and the mixing mass ratio is 1: 0.1-0.3, the magnetic reducing agent should be dispersed through the supersound when mixing, utilize magnetic action to gather together easily and form complete liquid level and cover the oxidizing slag after releasing, and after reducing agent and tin lead oxide take place the reaction, mixed magnetic nanometer iron oxide powder can enter into the reaction product, can trigger the scrubbing action of accelerating the stick on the one hand, can cooperate with the electro-magnet on the other hand, through the reduction and the spalling of the impact acceleration oxidizing slag that magnetic attraction formed, can also retrieve reaction product and magnetic oxidant.
Furthermore, the organic matter reducing agent is any one of tyrosine, phenol and ethanol, the reducing agent is a non-toxic or low-toxicity organic material and is a biodegradable substance, and the reducing agent and the oxide are harmless to human and the environment, so that liquid level covering is convenient, and excessive damage to human bodies and the environment can not be generated.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that:
(1) the scheme can realize innovative introduction of computer vision analysis, locate the oxidizing slag area on the workpiece, cover the oxidizing slag area by using the slag covering disc, automatically adapt to the characteristics of the oxidizing slag to trigger the action of releasing the magnetic reducing agent, carry out reduction reaction with tin-lead oxide under the heating condition, reduce the oxidizing slag area into tin-lead, and distribute liquid and the self-magnetism of the liquid through a net shape, so that the oxidizing slag area is covered by forming continuous liquid level, the sufficiency and the efficiency of the reduction reaction can be improved, the escape of lead fume can be effectively inhibited, reaction products can be timely cleared while the oxidizing slag is reduced and removed, the magnetic characteristics are utilized to accelerate removal and recovery, and the effective protection is carried out on the environment while the tin-lead alloy oxidizing slag can be efficiently removed.
(2) Before feeding, small-area oxidation slag and stains on the workpiece can be pre-cleaned, and the coverage area of the workpiece is automatically ignored by computer vision analysis and is lower than 0.5m2The oxidizing slag can avoid the interference of stains and the like on the visual analysis of a computer to cause misjudgment, and meanwhile, the oxidizing slag in a small area can be removed in a manual polishing mode, so that the cost and the time can be saved.
(3) The slag covering disc comprises a main disc body, a plurality of liquid storage bags and self-adaptive liquid releasing pipes, wherein the lower end of the main disc body is provided with a processing groove, the liquid storage bags are connected to the top wall of the processing groove, the self-adaptive liquid releasing pipes are connected to the lower end of the liquid storage bags and communicated with the liquid storage bags, the lower ends of the self-adaptive liquid releasing pipes are connected with communicated multipoint sensing balls, a distribution net wire is connected between every two adjacent multipoint sensing balls, two ends of the distribution net wire penetrate through and extend to the inner sides of the multipoint sensing balls, a plurality of uniformly distributed electromagnets are embedded and mounted at the lower end of the inner side of the main disc body, oxidation slag is automatically sensed through the multipoint sensing balls, so that the self-adaptive liquid releasing pipes trigger the action of releasing the magnetic reducing agent, the magnetic reducing agent is distributed based on the distribution net wire, and complete liquid level covering is facilitated to be formed, thereby accelerating the peeling and detachment of the oxidized slag by using the impact action and enabling the recycling.
(4) Terminal surface and main dish body lower extreme face keep on same height under the multiple spot perception ball, the distribution net silk includes a pair of drain silk and connects the spacer wire between the drain silk, and the drain silk is connected with adjacent multiple spot perception ball respectively, the drain silk can guide the distribution to magnetic reducing agent, be favorable to forming complete liquid level, middle spacer wire is used for cutting off the guide, the phenomenon of common release magnetic reducing agent also can appear because highly different in adjacent multiple spot perception ball to avoid appearing, avoid magnetic reducing agent's waste and cause the injury to the butt weld.
(5) The self-adaptive liquid release pipe comprises a plastic main pipe, a silica gel auxiliary pipe, an extension rod and a plugging ball, wherein the plastic main pipe is connected to the lower end of a liquid storage bag, the silica gel auxiliary pipe is connected between the plastic main pipe and a multi-point sensing ball, the extension rod is inserted into the silica gel auxiliary pipe and connected with the upper end of the multi-point sensing ball, the plugging ball is positioned in the plastic main pipe and connected to the upper end of the extension rod, a liquid control hole with the diameter gradually reduced from top to bottom is formed in the plastic main pipe, sensing of the oxidation slag is performed through the multi-point sensing ball, the height of the plugging ball is controlled through the extension rod, only when the multi-point sensing ball and the lower end face of a main disc body keep the same height, the plugging ball seals the liquid control hole, magnetic reducing agents in the liquid storage bag can reach the multi-point sensing ball through gaps to be distributed under other conditions.
(6) The liquid guide wire is made of a water guide material, the isolating wire is made of a water-resisting material, the lower end of the isolating wire is connected with a plurality of accelerating rods which are uniformly distributed, the accelerating rods are used for being matched with the magnetic reducing agent to form local brushing action, the sufficiency and efficiency of reduction reaction can be improved, meanwhile, reaction products can be timely separated, and the subsequent reduction reaction is prevented from being blocked.
(7) The stick with higher speed is including helping the bullet pipe, silk and steel wire brush ball are inlayed to magnetism, help the bullet union coupling in isolation silk lower extreme, the steel wire brush ball is connected in helping the bullet pipe lower extreme, magnetism inlays the silk and inlays and connect in helping the bullet intraductal, thereby help the bullet pipe to be used for providing elasticity can so that the stick with higher speed wholly can appear the high-frequency vibration action, magnetism inlays the silk and produces unstable magnetic attraction effect based on the distribution characteristics of magnetic reducing agent, thereby provide the source power of stick vibration with higher speed, the steel wire brush ball then scrubs with higher speed oxidation slag region at the vibration in-process of stick with higher speed.
(8) The heating treatment temperature is 200-240 ℃, and the heating temperature is far lower than the temperature generated by the lead fume above 400 ℃, so that the acceleration effect on the reduction reaction can be provided, and the pollution to the environment caused by the generation of the lead fume can be effectively avoided.
(9) The magnetic reducing agent is a mixture of a non-toxic or low-toxicity organic reducing agent and magnetic nano iron oxide powder, and the mixing mass ratio is 1: 0.1-0.3, the magnetic reducing agent should be dispersed through the supersound when mixing, utilize magnetic action to gather together easily and form complete liquid level and cover the oxidizing slag after releasing, and after reducing agent and tin lead oxide take place the reaction, mixed magnetic nanometer iron oxide powder can enter into the reaction product, can trigger the scrubbing action of accelerating the stick on the one hand, can cooperate with the electro-magnet on the other hand, through the reduction and the spalling of the impact acceleration oxidizing slag that magnetic attraction formed, can also retrieve reaction product and magnetic oxidant.
(10) The organic matter reducing agent is any one of tyrosine, phenol and ethanol, the reducing agent is a nontoxic or low-toxicity organic material and is a biodegradable substance, and the reducing agent and the oxide are harmless to human and the environment, so that liquid level covering is convenient, and excessive damage to the human body and the environment can not be generated.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a slag covering disc according to the present invention;
FIG. 3 is a schematic view of the structure at A in FIG. 2;
FIG. 4 is a schematic structural diagram of the adaptive liquid releasing tube;
FIG. 5 is a schematic view of the structure of the accelerating bar of the present invention.
The reference numbers in the figures illustrate:
1 slag covering disc, 11 main disc bodies, 12 liquid storage bags, 13 self-adaptive liquid release pipes, 131 plastic main pipes, 132 silica gel auxiliary pipes, 133 extension rods, 134 sealing balls, 14 multi-point sensing balls, 15 distribution net wires, 151 liquid guide wires, 152 isolating wires, 2 accelerating rods, 21 bullet assisting pipes, 22 magnetic embedded wires, 23 steel wire brush balls and 3 electromagnets.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1:
referring to fig. 1, a self-adaptive liquefaction covering reduction type removal method for tin-lead alloy oxide slag includes the following steps:
s1, loading the workpiece to be subjected to oxidation slag removal onto a processing platform, and determining an oxidation slag area through computer vision analysis;
s2, calculating coordinate data of the oxidizing slag area, feeding the coordinate data back to the three-axis driving system, and moving the slag covering disc 1 to hover above the oxidizing slag area;
s3, the processing platform heats the oxidizing slag area in advance, the slag covering disc 1 descends to contact with a workpiece after the temperature is raised to a proper temperature, and the removal action is triggered;
s4, the slag covering disc 1 automatically induces the oxidizing slag and releases the magnetic reducing agent, the oxidizing slag is reduced at a heating temperature, and redundant reducing agent and tin and lead are recovered through sweeping;
and S5, automatically stopping after the removal of the oxidizing slag area is finished, moving to the next oxidizing slag area by the three-axis driving system, and repeating the process until all the oxidizing slag is removed.
In step S1, small-area oxidation slag and dirt on the workpiece can be pre-cleaned before loading, and the coverage area below 0.5m can be automatically ignored by computer vision analysis2The oxidizing slag can avoid the interference of stains and the like on the visual analysis of a computer to cause misjudgment, and meanwhile, the oxidizing slag in a small area can be removed in a manual polishing mode, so that the cost and the time can be saved.
Referring to fig. 2, the slag covering pan 1 in step S2 includes a main pan body 11, a plurality of liquid storage bags 12 and adaptive liquid releasing pipes 13, a processing tank is disposed at the lower end of the main pan body 11, the liquid storage bags 12 are connected to the top wall of the processing tank, the adaptive liquid releasing pipes 13 are connected to the lower end of the liquid storage bags 12 and communicated therewith, the lower end of the adaptive liquid releasing pipes 13 is connected to multipoint sensing balls 14 which are communicated with each other, a distribution mesh 15 is connected between the adjacent multipoint sensing balls 14, and both ends of the distribution mesh 15 extend through the inside of the multipoint sensing balls 14, a plurality of evenly distributed electromagnets 3 are mounted at the lower end of the inside of the main pan body 11, and by the feature of the multipoint sensing balls 14 that they autonomously sense and induce the oxidized slag, the action of releasing the magnetic reducer is triggered by the adaptive liquid pipes 13, and the magnetic reducer is distributed based on the distribution mesh 15, and the complete liquid level is formed for, the electromagnet 3 can accelerate the peeling and the separation of the oxidation slag by utilizing the impact effect through generating the magnetic attraction effect on the magnetic particles in the magnetic reducing agent, and can be recovered, and the electromagnet 3 is started at intervals.
Referring to fig. 3, the lower end surfaces of the multipoint sensing balls 14 and the lower end surface of the main disc 11 are maintained at the same height, the distribution mesh 15 includes a pair of liquid guiding wires 151 and isolating wires 152 connected between the liquid guiding wires 151, the liquid guiding wires 151 are respectively connected to the adjacent multipoint sensing balls 14, the liquid guiding wires 151 can guide and distribute the magnetic reducing agent, which is beneficial to forming a complete liquid level, the isolating wires 152 in the middle are used for isolating and guiding, the phenomenon that the magnetic reducing agent is released together due to the different heights of the adjacent multipoint sensing balls 14 is avoided, and the waste of the magnetic reducing agent and the damage to the weld seam are avoided.
Referring to fig. 4, the adaptive liquid releasing pipe 13 includes a main plastic pipe 131, a sub silica gel pipe 132, an extending rod 133 and a blocking ball 134, the main plastic pipe 131 is connected to the lower end of the liquid storage pack 12, the sub silica gel pipe 132 is connected between the main plastic pipe 131 and the multipoint sensing ball 14, the extending rod 133 is inserted into the sub silica gel pipe 132 and connected to the upper end of the multipoint sensing ball 14, the blocking ball 134 is located in the main plastic pipe 131 and connected to the upper end of the extending rod 133, a liquid controlling hole with a diameter gradually decreasing from top to bottom is formed in the main plastic pipe 131, the multipoint sensing ball 14 senses the oxidized slag, so that the height of the blocking ball 134 is controlled by the extending rod 133, the blocking ball 134 seals the liquid controlling hole only when the multipoint sensing ball 14 maintains the same height as the lower end surface of the main disc 11, and the magnetic reducing agent in the liquid storage pack 12 can reach the multipoint sensing ball 14 through a gap for distribution under other conditions, thereby forming the self-adaptive removal of the oxidized slag.
The liquid guide wire 151 is made of a water guide material, the isolating wire 152 is made of a water-resisting material, the lower end of the isolating wire 152 is connected with a plurality of accelerating rods 2 which are uniformly distributed, the accelerating rods 2 are used for being matched with a magnetic reducing agent to form local brushing action, the sufficiency and the efficiency of reduction reaction can be improved, meanwhile, reaction products can be timely separated, and the subsequent reduction reaction is prevented from being blocked.
Referring to fig. 5, the accelerating rod 2 includes an elastic tube 21, a magnetic embedded wire 22 and a steel wire brush ball 23, the elastic tube 21 is made of elastic material, the magnetic embedded wire 22 is made of ferromagnetic material, the elastic tube 21 is connected to the lower end of the isolating wire 152, the steel wire brush ball 23 is connected to the lower end of the elastic tube 21, the magnetic embedded wire 22 is embedded in the inner end of the elastic tube 21, the elastic tube 21 is used for providing elasticity so that the accelerating rod 2 can generate high-frequency vibration action as a whole, the magnetic embedded wire 22 generates unstable magnetic attraction action based on the distribution characteristics of the magnetic reducing agent so as to provide the source power for the vibration of the accelerating rod 2, and the steel wire brush ball 23 brushes and accelerates the oxidation slag area in the vibration process of the accelerating rod 2.
The heating temperature in the step S3 is 200-240 ℃, and the heating temperature is far lower than the temperature generated by the lead fume above 400 ℃, so that the method not only can provide an acceleration effect for the reduction reaction, but also can effectively avoid the pollution to the environment caused by the generation of the lead fume.
The magnetic reducing agent in the step S5 is a mixture of a non-toxic or low-toxicity organic reducing agent and magnetic nano iron oxide powder, and the mixing mass ratio is 1: 0.1-0.3, the magnetic reducing agent should be dispersed through the supersound when mixing, utilize magnetic action to gather together easily and form complete liquid level and cover the oxidizing slag after releasing, and after reducing agent and tin lead oxide take place the reaction, the magnetic nanometer iron oxide powder of mixing can enter into the reaction product, can trigger the scrubbing action of accelerating rod 2 on the one hand, can cooperate with electro-magnet 3 on the other hand, through the reduction of the impact acceleration oxidizing slag that magnetic attraction formed and peel off, can also retrieve reaction product and magnetic oxidant.
Furthermore, the organic matter reducing agent is any one of tyrosine, phenol and ethanol, the reducing agent is a non-toxic or low-toxicity organic material and is a biodegradable substance, and the reducing agent and the oxide are harmless to human and the environment, so that liquid level covering is convenient, and excessive damage to the human body and the environment can not be generated.
The invention can realize innovative introduction of computer vision analysis, position the oxidizing slag area on the workpiece, cover the oxidizing slag area by using the slag covering disc 1, automatically adapt to the characteristics of the oxidizing slag to trigger the action of releasing the magnetic reducing agent, carry out reduction reaction with the tin-lead oxide under the heating condition, reduce the oxidizing slag area into tin-lead, and facilitate the formation of continuous liquid level to cover the oxidizing slag area by the action of the net-shaped distributed liquid and the self magnetism of the liquid, thereby not only improving the sufficiency and efficiency of the reduction reaction, but also effectively inhibiting the escape of lead fume, timely cleaning reaction products while carrying out reduction removal on the oxidizing slag, accelerating removal and recovery by using the magnetic characteristics, and effectively protecting the environment while efficiently removing the tin-lead alloy oxidizing slag.
The foregoing is only a preferred embodiment of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.
Claims (10)
1. A self-adaptive liquefaction covering reduction type removing method of tin-lead alloy oxidation slag is characterized by comprising the following steps: the method comprises the following steps:
s1, loading the workpiece to be subjected to oxidation slag removal onto a processing platform, and determining an oxidation slag area through computer vision analysis;
s2, calculating coordinate data of the oxidizing slag area, feeding the coordinate data back to the three-axis driving system, and moving the slag covering disc (1) to hover above the oxidizing slag area;
s3, the processing platform heats the oxidizing slag area in advance, the slag covering disc (1) descends to contact with the workpiece after the temperature is raised to a proper temperature, and the removal action is triggered;
s4, the slag covering disc (1) automatically induces the oxidizing slag and releases the magnetic reducing agent, the oxidizing slag is reduced at a heating temperature, and redundant reducing agent and tin and lead are recovered through sweeping;
and S5, automatically stopping after the removal of the oxidizing slag area is finished, moving to the next oxidizing slag area by the three-axis driving system, and repeating the process until all the oxidizing slag is removed.
2. The self-adaptive liquefaction covering reduction type removal method of tin-lead alloy oxidized slag according to claim 1, characterized by comprising the following steps of: in the step S1, small-area oxidation slag and dirt on the workpiece can be pre-cleaned before loading, and the coverage area below 0.5m can be automatically ignored by computer vision analysis2The oxidized slag of (2).
3. The self-adaptive liquefaction covering reduction type removal method of tin-lead alloy oxidized slag according to claim 1, characterized by comprising the following steps of: cover slag plate (1) in step S2 includes main disk body (11) and a plurality of stock solution package (12) and self-adaptation liquid releasing pipe (13), the treatment trough has been seted up to main disk body (11) lower extreme, stock solution package (12) are connected on the treatment trough roof, and self-adaptation liquid releasing pipe (13) connect in stock solution package (12) lower extreme and communicate with it, self-adaptation liquid releasing pipe (13) lower extreme is connected with multiple spot perception ball (14) that are linked together, and is adjacent be connected with distribution net silk (15) between multiple spot perception ball (14), and distribution net silk (15) both ends all run through and extend to multiple spot perception ball (14) inboardly, main disk body (11) inboard lower extreme is inlayed and is installed a plurality of evenly distributed' S electro-magnet (3).
4. The self-adaptive liquefaction covering reduction type removal method of tin-lead alloy oxidized slag according to claim 3, characterized by comprising the following steps of: the lower end face of the multipoint sensing ball (14) and the lower end face of the main disc body (11) are kept at the same height, the distribution net wire (15) comprises a pair of liquid guide wires (151) and isolating wires (152) connected between the liquid guide wires (151), and the liquid guide wires (151) are respectively connected with the adjacent multipoint sensing ball (14).
5. The self-adaptive liquefaction covering reduction type removal method of tin-lead alloy oxidized slag according to claim 3, characterized by comprising the following steps of: self-adaptation liquid release pipe (13) are responsible for (131), silica gel auxiliary pipe (132), extension rod (133) and shutoff ball (134) including plastics, plastics are responsible for (131) and connect in stock solution package (12) lower extreme, silica gel auxiliary pipe (132) are connected between plastics are responsible for (131) and multiple spot perception ball (14), extension rod (133) are inserted and are located in silica gel auxiliary pipe (132) and are connected with multiple spot perception ball (14) upper end, shutoff ball (134) are located plastics are responsible for (131) and are connected in extension rod (133) upper end, it gradually diminishes from last to down the diameter accuse liquid hole to have seted up in plastics are responsible for (131).
6. The self-adaptive liquefaction covering reduction type removal method of tin-lead alloy oxidized slag according to claim 4, characterized by comprising the following steps: the liquid guide wire (151) is made of a water guide material, the isolating wire (152) is made of a water-proof material, and the lower end of the isolating wire (152) is connected with a plurality of accelerating rods (2) which are uniformly distributed.
7. The self-adaptive liquefaction covering reduction type removal method of tin-lead alloy oxidized slag according to claim 6, characterized by comprising the following steps: the accelerating rod (2) comprises an elastic assisting pipe (21), a magnetic embedded wire (22) and a steel wire brush ball (23), the elastic assisting pipe (21) is connected to the lower end of the isolating wire (152), the steel wire brush ball (23) is connected to the lower end of the elastic assisting pipe (21), and the magnetic embedded wire (22) is embedded and connected to the inner end of the elastic assisting pipe (21).
8. The self-adaptive liquefaction covering reduction type removal method of tin-lead alloy oxidized slag according to claim 1, characterized by comprising the following steps of: the heating treatment temperature in the step S3 is 200-240 ℃.
9. The self-adaptive liquefaction covering reduction type removal method of tin-lead alloy oxidized slag according to claim 1, characterized by comprising the following steps of: the magnetic reducing agent in the step S5 is a mixture of a non-toxic or low-toxicity organic reducing agent and magnetic nano iron oxide powder, and the mixing mass ratio is 1: 0.1-0.3.
10. The self-adaptive liquefaction covering reduction type removal method of tin-lead alloy oxidized slag according to claim 9, characterized in that: the organic matter reducing agent is any one of tyrosine, phenol and ethanol.
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| CN202010975038.6A CN112108739A (en) | 2020-09-16 | 2020-09-16 | Self-adaptive liquefaction covering reduction type removing method for tin-lead alloy oxidation slag |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112935936A (en) * | 2021-01-27 | 2021-06-11 | 曾令阳 | Stainless steel rust removing and polishing process |
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| US4571260A (en) * | 1984-02-07 | 1986-02-18 | Boliden Aktiebolag | Method for recovering the metal values from materials containing tin and/or zinc |
| CN205373401U (en) * | 2016-01-07 | 2016-07-06 | 广元恒大铝业有限公司 | Novel no dead angle aluminium sediment smelting furnace |
| CN106755659A (en) * | 2016-12-10 | 2017-05-31 | 东北大学 | A kind of method that the slag of mixing containing rare earth metallurgy melting reduction is reclaimed |
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