CN114425189A - Classified recovery device and method for coating brazing filler metal - Google Patents
Classified recovery device and method for coating brazing filler metal Download PDFInfo
- Publication number
- CN114425189A CN114425189A CN202210088575.8A CN202210088575A CN114425189A CN 114425189 A CN114425189 A CN 114425189A CN 202210088575 A CN202210088575 A CN 202210088575A CN 114425189 A CN114425189 A CN 114425189A
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- brazing filler
- filler metal
- coating
- dissolving
- tank
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- 229910052751 metal Inorganic materials 0.000 title claims abstract description 137
- 239000002184 metal Substances 0.000 title claims abstract description 137
- 239000011248 coating agent Substances 0.000 title claims abstract description 113
- 238000000576 coating method Methods 0.000 title claims abstract description 113
- 238000005219 brazing Methods 0.000 title claims abstract description 92
- 239000000945 filler Substances 0.000 title claims abstract description 88
- 238000000034 method Methods 0.000 title claims abstract description 37
- 238000011084 recovery Methods 0.000 title claims abstract description 37
- 239000007788 liquid Substances 0.000 claims abstract description 43
- 230000007246 mechanism Effects 0.000 claims abstract description 41
- 238000007599 discharging Methods 0.000 claims abstract description 30
- 229910000679 solder Inorganic materials 0.000 claims abstract description 30
- 239000000126 substance Substances 0.000 claims abstract description 28
- 238000001914 filtration Methods 0.000 claims abstract description 16
- 238000004064 recycling Methods 0.000 claims abstract description 10
- 238000002791 soaking Methods 0.000 claims abstract description 10
- 238000000746 purification Methods 0.000 claims description 61
- 239000000084 colloidal system Substances 0.000 claims description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 33
- 238000010438 heat treatment Methods 0.000 claims description 32
- 230000008569 process Effects 0.000 claims description 13
- 238000007667 floating Methods 0.000 claims description 4
- 238000005086 pumping Methods 0.000 claims description 3
- 230000004907 flux Effects 0.000 abstract description 15
- 239000011230 binding agent Substances 0.000 abstract description 9
- 238000005096 rolling process Methods 0.000 abstract description 3
- 239000002910 solid waste Substances 0.000 abstract description 2
- 239000011253 protective coating Substances 0.000 abstract 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical group [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 61
- 239000000243 solution Substances 0.000 description 41
- 239000007864 aqueous solution Substances 0.000 description 31
- 239000007789 gas Substances 0.000 description 24
- 238000004090 dissolution Methods 0.000 description 22
- 239000003960 organic solvent Substances 0.000 description 11
- 239000011780 sodium chloride Substances 0.000 description 11
- 239000002344 surface layer Substances 0.000 description 8
- 239000002699 waste material Substances 0.000 description 8
- 238000003466 welding Methods 0.000 description 8
- 239000000463 material Substances 0.000 description 6
- 229920006395 saturated elastomer Polymers 0.000 description 6
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 239000010410 layer Substances 0.000 description 5
- 238000001035 drying Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 238000005476 soldering Methods 0.000 description 3
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910000040 hydrogen fluoride Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- 239000011591 potassium Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910021538 borax Inorganic materials 0.000 description 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 1
- 239000004327 boric acid Substances 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000005202 decontamination Methods 0.000 description 1
- 230000003588 decontaminative effect Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003302 ferromagnetic material Substances 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000004328 sodium tetraborate Substances 0.000 description 1
- 235000010339 sodium tetraborate Nutrition 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/96—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor in which the filtering elements are moved between filtering operations; Particular measures for removing or replacing the filtering elements; Transport systems for filters
-
- 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
-
- 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 relates to the technical field of solid waste recycling, in particular to a device and a method for classifying and recycling coating brazing filler metal. The invention aims to provide a device and a method for classifying and recovering a protective coating brazing filler metal. The classified recovery device for the flux-cored solder comprises a dissolving tank and a discharging mechanism, wherein the dissolving tank is used for containing dissolving liquid; the discharging mechanism is used for placing the coating brazing filler metal into the dissolving tank; the classified recovery device for the brazing filler metal coated with the coating further comprises a discharged liquid filtering mechanism. The brazing filler metal is soaked to dissolve and separate components in the brazing filler metal, the binder and the brazing flux on the metal inner core can be completely removed through soaking, then the metal inner core is taken out through the discharging mechanism, finally the dissolved liquid is filtered through the liquid discharge filtering mechanism, and insoluble substances are recovered. The whole device is simple in structure, insoluble substances in the metal inner core and the coating brazing filler metal can be recovered simultaneously, and the problem that the coating brazing filler metal cannot completely remove the binder and the brazing flux through physical rolling and other modes in the prior art is solved.
Description
Technical Field
The invention relates to the technical field of solid waste recycling, in particular to a device and a method for classifying and recycling coating brazing filler metal.
Background
The coating solder is generally composed of a metal core, a binder and a flux layer, wherein the binder and the flux layer are coated on the surface layer of the metal core to form a coating, and in order to prevent the coating solder from scattering and absorbing moisture in the transportation and placement processes, an organic colloid is also added into the binder. At present, the production yield of the coating brazing filler metal is about 70 percent, and the produced defective coating brazing filler metal is directly used as scrap returns to produce a new batch of metal cores. Organic matters in the defective flux-cored solder can volatilize and burn in a hearth, and the burning process not only pollutes the environment, but also causes the increase of impurities such as residual carbon and the like in a new batch of metal cores, and influences the quality of the new batch of metal cores. In order to solve the problems, the prior art adopts ways such as mechanical rolling to remove the coating on the surface layer of the metal inner core.
For example, chinese patent No. CN110813981B discloses a machine for removing the coating of waste welding electrode, which comprises a blanking box, a scrap collecting box, a conveying assembly, a crushing assembly, a residue cleaning assembly, etc., and is used to remove the coating on the surface layer of the metal core of the waste welding electrode. When the machine operation is got rid of to abandonment welding electrode coating, the abandonment welding electrode conveys to the crushing subassembly through the conveying subassembly, and the crushing cylinder in the crushing subassembly rolls in order to make the most coating that covers on the welding electrode drop, and the coating that drops falls into scrap collecting box, and residue clearance subassembly begins work afterwards, and the ball of knocking in the residue clearance subassembly is knocked down through knocking the remaining coating on the welding electrode.
However, the machine for removing the coating of the waste welding electrode only processes the waste welding electrode by rolling and knocking methods, cannot completely remove the coating on the surface layer of the metal inner core, the quality of the metal inner core is still poor when the metal inner core is re-melted and re-cast because the clean coating is not removed, and the binder in the cleaned coating is combined with the brazing flux layer, so that the coating is difficult to separate and recycle, and the waste of the coating is caused.
Disclosure of Invention
The invention aims to provide a classified recovery device for coating brazing filler metal, which is used for solving the problems that when the coating brazing filler metal is treated, the coating on the surface layer of a metal inner core is not completely removed, so that the quality of a new batch of metal inner cores produced again is poor, and the removed coating is difficult to recycle, so that waste is caused; the invention also aims to provide a method for classifying and recycling the coating brazing filler metal, which is used for solving the problems that when the coating brazing filler metal is treated, the coating on the surface layer of the metal inner core is not completely removed, so that the quality of a newly produced new batch of metal inner cores is poor, and the removed coating is difficult to recycle, so that waste is caused.
The classified recovery device for the coating brazing filler metal adopts the following technical scheme:
the classified recovery device for the coating brazing filler metal comprises a case, wherein a dissolving tank for containing dissolving liquid and a discharging mechanism for adding the coating brazing filler metal into the dissolving tank are arranged in an inner cavity of the case, the discharging mechanism is arranged above the dissolving tank and is provided with a material supporting mechanism for supporting the coating brazing filler metal and a driving mechanism for driving the material supporting mechanism to lift and place, the discharging mechanism is used for placing the coating brazing filler metal into the dissolving tank filled with the dissolving liquid, and after the coating is dissolved and falls off from a metal inner core, the discharging mechanism is also used for taking the metal inner core out of the dissolving tank; the classified recovery device for the brazing filler metal of the coating further comprises a discharged liquid filtering mechanism, the discharged liquid filtering mechanism comprises a liquid discharging pipeline and a filtering device connected to the liquid discharging pipeline in series, and when the dissolved liquid is discharged from the liquid discharging pipeline, the filtering device is used for filtering the dissolved liquid so as to filter out insoluble substances in the dissolved liquid.
Has the advantages that: according to the classified recovery device for the coating brazing filler metal, the coating brazing filler metal to be treated is placed into the dissolving tank for soaking through the material placing mechanism, and the coating on the metal inner core can be completely removed in the soaking process. And then taking out the metal inner core from the dissolving tank through a discharging mechanism to obtain a clean metal inner core, and simultaneously filtering the dissolving solution through a discharged liquid filtering mechanism to recover insoluble matters in the brazing filler metal coating. The problem of among the prior art handle the coating brazing filler metal through the mode of physics roll-in, strike, can't get rid of the coating on the metal core totally and lead to the poor quality of the new batch of metal core of reproducing, and get rid of the brazing flux layer in the coating and mix together with the binder, be difficult to separate and recycle, cause the coating extravagant is solved.
Further, categorised recovery unit of coating brazing filler metal includes vibrating device, and vibrating device is used for dissolving the liquid vibration at the in-process that soaks the coating brazing filler metal. The vibrating device is arranged to accelerate the dissolving speed, and the medicine skin on the metal inner core can be enabled to fall off more cleanly.
Further, the vibration device comprises an ultrasonic generator and a mechanical oscillator, the ultrasonic generator is positioned below the dissolving tank and is in contact with the bottom of the dissolving tank, and the mechanical oscillator is positioned at the bottom of the dissolving tank. Meanwhile, an ultrasonic generator and a mechanical oscillator are used, so that the vibration effect is good, the brazing filler metal of the coating is dissolved and separated more quickly, and the coating on the metal inner core is separated more thoroughly; the ultrasonic generator is arranged below the dissolving tank, and the mechanical oscillator is arranged in the dissolving tank, so that the whole device is more compact in layout, and the internal space of the case is saved.
Further, categorised recovery unit of coating brazing filler metal includes the heating device that is used for heating dissolving the liquid. The heating device is arranged, so that the dissolving and separating speed of the flux-cored brazing filler metal can be increased, and the time required by classified recovery is saved.
Further, categorised recovery unit of coating brazing filler metal is including being used for carrying out the organic colloid collection device who collects to the organic colloid that soaks the separation, and organic colloid collection device includes the collecting pipe, concatenates the collection pump on the collecting pipe and connects the collection mouth at collecting pipe tip, and the collection mouth is used for floating on the surface of dissolving the liquid. Set up organic colloid collection device and can retrieve the organic colloid in the coating brazing filler metal, reduced manufacturing cost.
Further, the case is also provided with an exhaust purification device used for collecting, purifying and discharging the gas generated from the dissolving tank, wherein the exhaust purification device comprises an air suction pump, a purification tank and an air pipe, and the air suction pump is used for pumping the gas generated from the dissolving liquid into the purification tank through the air pipe for purification. The exhaust purification device is arranged and used for purifying and then discharging the gas, thereby being beneficial to the environmental protection.
Further, the purification tank is arranged on the outer side of the top of the case, the air pump is installed on the top wall of the case, and the air pump sends extracted gas to the purification tank through an air pipe. The purification tank and the air pump are arranged at the top of the case, so that the gas can be conveniently collected and purified.
Further, exhaust purification device still including arranging the purification cavity in the top outside of quick-witted case, aspiration pump and purification groove are in purification cavity, and purification cavity's top still is equipped with the air discharge fan, and purification cavity's bottom is equipped with the mouth that leaks. The purification chamber and the exhaust fan can accelerate the escape of gas in the purification tank and improve the gas purification speed; the arrangement of the water leakage port is convenient for discharging the liquid at the bottom of the purification chamber in time.
The method for classifying and recovering the coating brazing filler metal adopts the following technical scheme:
a method for classifying and recovering flux-cored solder, which comprises the steps of soaking the flux-cored solder in a dissolving solution; after the coating of the coating brazing filler metal is dissolved and falls off from the metal inner core, taking the metal inner core out of the dissolving solution; the dissolved solution was filtered to filter out insoluble matter in the dissolved solution.
Has the beneficial effects that: the coating brazing filler metal is soaked, so that the coating on the metal inner core can be removed completely, and a relatively clean metal inner core is obtained; the dissolution liquid is filtered, so that components insoluble in the dissolution liquid in the coating can be recovered, and the problems that the coating on the metal inner core is not completely removed, so that the quality of the produced new batch of metal inner core is poor, and the removed coating is difficult to separate and recycle can be solved.
Further, the density of the dissolving solution is greater than that of the organic colloid in the coating solder, so that the organic colloid separated from the coating solder by soaking can float on the surface of the dissolving solution. The organic colloid floats on the surface of the solution, so that the organic colloid is convenient to separate and recycle from the solution.
Drawings
FIG. 1 is an overall schematic view of a classified recovery device for brazing filler metal coated with a coating according to the present invention;
in the figure: 1. a chassis; 11. a master control box; 12. a front door is opened; 13. a wheel; 2. a dissolving tank; 21. a liquid injection pipe; 3. a discharging mechanism; 31. placing a basket; 32. a winch; 4. a discharged liquid filtering mechanism; 41. a drainage line; 42. a filter bag; 43. a water circulating pump; 5. a heating device; 51. heating a tube; 6. a vibrating device; 61. an ultrasonic generator; 62. a mechanical oscillator; 7. an organic colloid collecting device; 71. a collecting nozzle; 72. a collection pump; 73. a collection pipe; 8. an exhaust gas purification device; 81. a decontamination chamber; 811. opening the door upwards; 82. an air pump; 83. a water-soluble substance purification tank 84 and an organic solvent purification tank; 85. an exhaust fan; 86. an exhaust pipe; 87. a water leakage pipe; 88. a water leakage cover; 89. a gas delivery pipe.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that relational terms such as "first" and "second," and the like, which may be present, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, terms such as "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, elements recited by the phrases "comprising an … …," or the like, do not exclude the presence of such elements, processes, or methods.
In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" when they are used are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from specific situations.
In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the term "provided" may be used in a broad sense, for example, the object of "provided" may be a part of the body, or may be arranged separately from the body and connected to the body, and the connection may be a detachable connection or a non-detachable connection. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from specific situations.
The present invention will be described in further detail with reference to examples.
The specific embodiment 1 of the classified recovery device of the flux-cored solder of the invention:
the dissolving solution used in the embodiment is a saturated sodium chloride aqueous solution, and when the coating brazing filler metal is soaked in the saturated sodium chloride aqueous solution, the brazing flux layer and the binder can be separated from the metal inner core; meanwhile, potassium fluoborate, borax, potassium fluohydride, boric acid, boron gangue and other substances contained in the soldering flux are partially dissolved in a saturated sodium chloride aqueous solution, and the other part forms insoluble substances; the separated organic colloid in the binder floats on the surface of the saturated sodium chloride aqueous solution because the density of the organic colloid is less than that of the saturated sodium chloride aqueous solution.
As shown in figure 1, the classified recovery device for the flux-cored solder comprises a case 1, wherein a dissolving tank 2 for containing a saturated sodium chloride aqueous solution is installed in the inner cavity of the case 1, a liquid injection pipe 21 is arranged at an opening above the dissolving tank 2, and the liquid injection pipe 21 is communicated with the dissolving tank 2 and used for injecting the saturated sodium chloride aqueous solution into the dissolving tank 2.
The discharging mechanism 3 is installed above the dissolving tank 2, the discharging mechanism 3 comprises a material supporting mechanism for supporting the coating brazing filler metal, and in this embodiment, the material supporting mechanism is a placing basket 31 hung on the case 1. The placing basket 31 is used for containing the coating brazing filler metal, and the coating brazing filler metal is placed into the dissolving tank 2 filled with the saturated sodium chloride water solution so that the coating brazing filler metal is immersed in the saturated sodium chloride water solution. The placing basket 31 is provided with fine holes, and when the placing basket 31 is immersed in the saturated sodium chloride water solution, the saturated sodium chloride water solution can enter the placing basket 31 from the holes to soak the coating brazing filler metal. In the soaking process, the adhesive and the soldering flux of the coating brazing filler metal are gradually separated from the metal inner core, the metal inner core is remained in the placing basket 31 due to large volume, and the adhesive and the soldering flux leak out of the holes and enter the dissolving tank 2. After the brazing filler metal of the coating is completely soaked and dissolved, the placing basket 31 is also used for lifting the metal inner core out of the dissolving tank 2. The metal inner core extracted from the dissolving tank 2 can be returned to the furnace for reuse after subsequent drying treatment. The placing basket 31 is provided with more tiny holes, so that the contact area of the coating brazing filler metal and the saturated sodium chloride water solution is increased, and the dissolving and separating speed is higher; and the metal inner core in the coating brazing filler metal can not pass through the hole and is left in the placing basket 31, the metal inner core can be directly lifted out of the dissolving tank 2 through the placing basket 31, and the use is convenient.
The discharging mechanism 3 further comprises a driving mechanism for driving the placing basket 31 to move up and down, and the driving mechanism is a winch 32 fixed on the top of the inner cavity of the case. Specifically, a rope is wound around a drum of the hoist 32, one end of the rope is fixed to the placing basket 31, and the hoist 32 lowers the placing basket 31 by winding the drum and immerses the placing basket 31 in the solution, or lifts the placing basket 31 in the solution upward.
Categorised recovery unit of coating brazing filler metal is still including disposing flowing back filter mechanism 4 on dissolving tank 2 right side, and flowing back filter mechanism 4 includes drain line 41 and concatenates the filter equipment on drain line 41, and the tank bottom at dissolving tank 2 is connected to drain line 41 one end, and the top opening part at the dissolving tank is placed to one end. In this embodiment, the filter means is a filter bag 42, and the saturated aqueous sodium chloride solution in the dissolution tank 2 is filtered by the filter bag 42 when discharged from the drain line 41, and insoluble substances in the aqueous sodium chloride solution are filtered off and collected in the filter bag 42. After the liquid drainage is finished, the insoluble substances in the filter bag 42 are poured out, and the poured insoluble substances can be recycled after the subsequent drying treatment, so that the waste of the coating is reduced. The liquid discharge pipeline is also connected with a circulating water pump 43 in series, and the position of the circulating water pump 43 is positioned at the rear of the filter bag 42 and is used for pumping the dissolved solution filtered in the liquid discharge pipeline 41 into the dissolving tank 2 again. The arrangement of the water circulating pump 43 can recycle the saturated sodium chloride water solution, so that the treatment cost of the coating solder is reduced.
Categorised recovery unit of coating brazing filler metal still includes heating device 5 of setting on the inner wall of dissolving tank 2, and heating device 5 is used for heating saturated sodium chloride aqueous solution. Heating device 5 includes heating pipe 51 and heating control subassembly, and heating pipe 51 is provided with two, is located dissolving tank 2's left side inner wall and right side inner wall respectively on, sets up two heating device 5 and heats saturated sodium chloride aqueous solution, and saturated sodium chloride aqueous solution's intensification process is very fast, and in soaking the in-process, and the dissolving rate of coating brazing filler metal is higher. The heating control assembly is used for regulating and controlling the heating power of the heating pipe 51 so that when the brazing filler metal is soaked in the brazing filler metal, the temperature of a saturated sodium chloride solution can be kept between 80 and 90 ℃, the main control box 11 is arranged on the outer side of the case 1, and the heating control assembly is integrated in the main control box 11.
The classified recovery device for the coating brazing filler metal further comprises a vibrating device 6 for vibrating the saturated sodium chloride water solution. In the present embodiment, the vibration means 6 includes an ultrasonic generator 61 and a mechanical oscillator 62, the mechanical oscillator 62 is installed at the bottom of the dissolution tank 2, and the ultrasonic generator 61 is installed at the lower side of the dissolution tank 2 and is in contact with the dissolution tank 2. The mechanical oscillator 62 is disposed in the dissolution tank 2, and can save the internal space of the cabinet 1. Meanwhile, the ultrasonic generator 61 and the mechanical oscillator 62 are used for vibrating the saturated sodium chloride aqueous solution, so that the dissolving and separating rate of the coating brazing filler metal is higher, and the coating on the metal inner core is separated more cleanly.
Categorised recovery unit of coating brazing filler metal still includes the organic colloid collection device 7 that is used for carrying out the collection to the organic colloid that soaks the separation, organic colloid collection device 7 includes collecting pipe 73, connect in series collection pump 72 on collecting pipe 73 and connect the collection mouth 71 at the tip of collecting pipe 73, collection mouth 71 floats on the surface of saturated sodium chloride aqueous solution, collecting pump 72 is arranged in following the organic colloid that floats at collection mouth 71 opening part and pumps out from dissolving tank 2, the organic colloid that pumps out can reuse after subsequent processing.
The top of the case 1 is also provided with an exhaust purification device 8, the exhaust purification device 8 comprises a purification chamber 81 arranged at the top of the case 1, a purification tank is arranged in the purification chamber 81, the top wall of the case 1 is provided with an air pump 82, and the air pump 82 is connected in series with an air pipe 89 and used for introducing gas generated from the dissolving tank 2 into the purification tank. The purification tank includes a water-soluble substance purification tank 83 and an organic solvent purification tank 84, and the water-soluble substance purification tank 83 is disposed on the right side of the organic solvent purification tank 84, the water-soluble substance purification tank 83 has a closed inner cavity, a gas supply pipe 89 communicates with the closed inner cavity of the water-soluble substance purification tank 83, the water-soluble substance purification tank 83 and the organic solvent purification tank 84 share a tank wall, and a communication hole communicating the water-soluble substance purification tank 83 and the organic solvent purification tank 84 is opened in the upper portion of the shared tank wall, gas generated from the dissolution tank 2 first enters the water-soluble substance purification tank 83 to be purified and then enters the organic solvent purification tank 84 through the communication hole to be purified, and the purified gas escapes from the organic solvent purification tank 84 to enter the purification chamber 81. Meanwhile, the water-soluble substance purifying tank 83 and the organic solvent purifying tank 84 are used for purifying the gas, so that the gas purifying effect is better, and the environment protection is facilitated. The exhaust gas purifying apparatus 8 further includes an exhaust fan 85 and an exhaust duct 86 installed at the top of the purifying chamber 81, the exhaust fan 85 for discharging the gas escaped from the organic solvent purifying tank 84 to the outdoor environment through the exhaust duct 86. The bottom of the purification chamber 81 is further connected with a water leakage pipe 87, the opening of the water leakage pipe 87 forms a water leakage opening of the purification chamber 81, and a water leakage cover 88 for opening and closing the opening of the water leakage pipe is arranged at the water leakage opening. When the gas with a certain temperature escapes from the purifying tank, the moisture therein condenses and falls to the bottom of the purifying chamber 81, and the condensed water falling to the bottom of the purifying chamber 81 can be discharged through the water leakage pipe 87.
Case 1 is last to be provided with preceding 12 that open the door, is provided with the 811 that opens the door on purifying the cavity, and the setting is opened the door 12 before being set up and is convenient for operate the categorised recovery unit of coating brazing filler metal, and the 811 that opens the door on setting is convenient for maintain the equipment in purifying the cavity 81, and the bottom of case 1 still is provided with the wheel 13 that is convenient for remove whole set of device.
The application method of the classified recovery device for the brazing filler metal in the embodiment is as follows:
the liquid injection tube 21 was opened, and a saturated sodium chloride aqueous solution was injected into the dissolution tank 2, and when the liquid level was between 2/3 and 4/5 of the height in the dissolution tank 2, the injection was stopped. When a main switch in the main control box 11 is pressed, the heating pipe 51 starts to heat the saturated sodium chloride aqueous solution in the dissolving tank 2, and when the temperature of the saturated sodium chloride aqueous solution rises to between 80 and 90 ℃, the heating pipe 51 is regulated and controlled by the heating control assembly to maintain the saturated sodium chloride aqueous solution at between 80 and 90 ℃. The ultrasonic generator 61 and the mechanical oscillator 62 are started, and then the suction pump 82 and the exhaust fan 85 are started.
The coating brazing filler metal is placed in the placing basket 31, the winch 32 is started to lower the placing basket 31 to a position below the liquid level of the sodium chloride water solution in the dissolving tank 2, and the coating in the coating brazing filler metal begins to dissolve and falls off from the metal inner core. The gas such as hydrogen fluoride generated in the process of dissolving and separating the coating is sent into a water-soluble substance purifying tank 83 and an organic solvent purifying tank 84 by an air pump 82 in sequence for purification, and the purified gas is discharged to the outdoor environment from an exhaust pipe 86 through an exhaust fan 85. After the brazing filler metal of the coating is completely dissolved and separated, the organic colloid collecting device 7 is started, and the collecting pump 72 pumps the organic colloid floating on the surface layer of the saturated sodium chloride water solution into the organic colloid collecting device 7 through the collecting nozzle 71. After the organic colloid is collected, the winch 32 is started to lift the placing basket 31 in the dissolving tank 2 out, the metal inner core in the placing basket 31 is taken out, and the metal inner core can be reused after subsequent drying treatment. The heating device 5, the ultrasonic generator 61 and the mechanical oscillator 62 are turned off. The drain filtering mechanism 4 is started, the saturated sodium chloride aqueous solution is discharged through the drain pipeline 41, and insoluble substances in the saturated sodium chloride aqueous solution are filtered by the filter bag 42 and collected in the filter bag 42 during the discharge. When the tight recycling of the sodium chloride aqueous solution is required, the water circulating pump 43 is started, and the water circulating pump 43 pumps the filtered saturated sodium chloride aqueous solution in the drainage pipeline 41 to the dissolving tank 2 again. And closing a main switch in the main control box 11, and finishing the classified recovery of the coating brazing filler metal.
The specific embodiment 2 of the coating brazing filler metal classifying and recycling device is different from the above embodiments only in that the material supporting mechanism is a discharging plate, and four corners of the discharging plate are connected with a winch through ropes.
The specific embodiment 3 of the classified recovery device for brazing filler metal coated with the coating is different from the above embodiments only in that the driving mechanism is an electric telescopic rod, and the telescopic end of the electric telescopic rod is hinged with the placing basket so as to lift and lower the placing basket.
The embodiment 4 of the classification and recovery apparatus for flux cored solder of the present invention is different from the above embodiments only in that the filter means is a strainer provided at the inlet of the drain line, and in this case, it is necessary to discharge all of the saturated sodium chloride aqueous solution in the dissolution tank and thereafter recover the insoluble matter from the bottom of the dissolution tank.
The specific embodiment 5 of the classification and recovery device for brazing filler metal coated with a flux coating according to the present invention is different from the above embodiments only in that the vibration device includes only a mechanical oscillator. In other embodiments, the vibration device may also include only an ultrasonic generator.
The embodiment 6 of the classification and recovery apparatus for flux cored solder of the present invention is different from the above embodiments only in that the mechanical oscillator is disposed outside the dissolution tank and in contact with the dissolution tank, and in this case, the mechanical oscillator transmits vibration to the dissolution liquid by vibrating the dissolution tank.
The specific example 7 of the present invention for classifying and recovering flux-cored solder is different from the above examples only in that the heating means is a coil wound around the circumference of the dissolution tank and a dissolution tank made of ferromagnetic material, and that the saturated aqueous sodium chloride solution is heated by supplying an alternating current to the coil to generate eddy current heat in the tank wall of the dissolution tank.
The specific embodiment 8 of the classification and recovery device for brazing filler metal with coating of the present invention is different from the above embodiments only in that the purification chamber is disposed on the side wall of the cabinet.
The specific embodiment 1 of the method for classifying and recovering the flux-cored solder of the invention:
first, a saturated aqueous sodium chloride solution was filled into the dissolution tank, and when the liquid level was between 2/3 and 4/5 of the height in the dissolution tank, the filling was stopped.
And heating the saturated sodium chloride aqueous solution in the dissolving tank by using a heating device, and regulating and controlling heating power by using a heating control component after the temperature of the saturated sodium chloride aqueous solution is increased to be between 80 and 90 ℃ so as to maintain the saturated sodium chloride aqueous solution in the temperature range. The saturated aqueous sodium chloride solution was vibrated using an ultrasonic generator and a mechanical oscillator. The air pump and the exhaust fan were started in advance to prepare for purifying and discharging the gas released from the saturated sodium chloride aqueous solution.
The coating brazing filler metal is placed in the placing basket, the placing basket is placed below the liquid level of the sodium chloride water solution in the dissolving tank by the starting motor, and the coating brazing filler metal begins to dissolve and separate in the dissolving tank. And gases such as hydrogen fluoride and the like generated in the dissolving and separating process of the coating solder are sequentially introduced into the water-soluble substance purifying tank and the organic solvent purifying tank by the air pump for purification, and the purified gases are discharged from the exhaust pipe to the outdoor environment through the exhaust fan. After the brazing filler metal of the coating is dissolved and separated completely, the organic colloid collecting device is started, and the organic colloid floating on the surface layer of the saturated sodium chloride water solution is pumped into the organic colloid collecting device through the collecting nozzle by the collecting pump. After the organic colloid is collected, the starting motor lifts the placing basket in the dissolving tank, the metal inner core in the placing basket is taken out, and the metal inner core can be reused after subsequent drying treatment.
The heating device, ultrasonic generator and mechanical oscillator were turned off. And starting the discharged liquid filtering mechanism, discharging the saturated sodium chloride aqueous solution through a liquid discharging pipeline, and filtering insoluble substances in the saturated sodium chloride aqueous solution by using a filter bag and collecting the insoluble substances in the filter bag during discharging. When the sodium chloride aqueous solution needs to be tightly recycled, the circulating water pump is started, and the saturated sodium chloride aqueous solution filtered in the drainage pipeline is pumped into the dissolving tank again by the circulating water pump. And closing a main switch in the main control box, and finishing the classified recovery of the coating brazing filler metal.
The specific example 2 of the method for classifying and recovering flux-cored solder of the present invention is different from the above examples only in that a saturated aqueous sodium chloride solution is vibrated by using only a mechanical oscillator. In other embodiments, it is also possible to vibrate the saturated aqueous sodium chloride solution using only the ultrasonic generator.
The method for classifying and recovering flux-cored solder of the present invention of embodiment 3 differs from the above embodiments only in that a saturated sodium chloride aqueous solution in a dissolution tank is heated by a heating device, and when the temperature of the saturated sodium chloride aqueous solution is raised to 80 degrees centigrade, the heating temperature is controlled to be maintained at 80 degrees centigrade. In other embodiments, the heating temperature may also be 90 degrees celsius or 85 degrees celsius.
The specific example 4 of the method for classifying and recycling flux-cored solder of the invention is different from the above examples only in that water is used as a dissolving solution, the density of water is higher than that of organic colloid, the operation requirement is met, and the cost is lower. In other embodiments, other solutions with density higher than that of the organic colloid in the flux-cored solder can also be used as the dissolving solution.
The specific example 5 of the method for classifying and recovering flux-cored solder of the present invention is different from the above-described examples only in that after the classification and recovery of flux-cored solder is completed once, the dissolving solution is discharged and a new dissolving solution is injected at the next operation.
The specific example 6 of the method for classifying and recovering brazing filler metal coated according to the present invention is different from the above examples only in that the brazing filler metal coated is first immersed in a dissolving solution, and then the dissolving solution is vibrated using an ultrasonic generator and a mechanical oscillator.
The specific embodiment 7 of the method for classifying and recovering brazing filler metal coated with flux of the present invention is different from the above embodiments only in that the brazing filler metal coated with flux is first soaked in a dissolving solution, and then an air pump and an exhaust fan are started to purify and discharge the gas generated in the dissolving process.
Finally, although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments without departing from the inventive concept, or some of the technical features may be replaced with equivalents. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The classified recovery device for the brazing filler metal coated with the chemicals is characterized by comprising a case (1), wherein a dissolving tank (2) used for containing dissolving liquid and a discharging mechanism (3) used for adding the brazing filler metal coated with the chemicals into the dissolving tank (2) are arranged in an inner cavity of the case (1), the discharging mechanism (3) is arranged above the dissolving tank (2) and is provided with a supporting mechanism for supporting the brazing filler metal coated with the chemicals and a driving mechanism for driving the supporting mechanism to lift up and down, the discharging mechanism (3) is used for lowering the brazing filler metal coated with the chemicals into the dissolving tank (2) filled with the dissolving liquid, and after the chemicals are dissolved and fall off from a metal inner core, the discharging mechanism (3) is also used for lifting the metal inner core out of the dissolving tank (2); categorised recovery unit of coating brazing filler metal still includes flowing back filtering mechanism (4), and flowing back filtering mechanism (4) are including drain line (41) and the filter equipment of concatenating on drain line (41), and when dissolving liquid is discharged from drain line (41), filter equipment is used for filtering dissolving liquid to insoluble substance in with dissolving liquid filters out.
2. The device for classifying and recovering the brazing filler metal with the coating according to claim 1, wherein the device for classifying and recovering the brazing filler metal with the coating comprises a vibrating device (6), and the vibrating device (6) is used for vibrating a dissolving solution in the process of soaking the brazing filler metal with the coating.
3. The coating filler metal classifying and recycling device according to claim 2, wherein the vibration device (6) comprises an ultrasonic generator (61) and a mechanical oscillator (62), the ultrasonic generator (61) is positioned below the dissolving tank (2) and is in contact with the bottom of the tank, and the mechanical oscillator (62) is positioned at the bottom of the tank in the dissolving tank (2).
4. The device for classifying and recovering the brazing filler metal with the coating according to any one of claims 1 to 3, wherein the device for classifying and recovering the brazing filler metal with the coating comprises a heating device (5) for heating a dissolving solution.
5. A classified recovery device of coated solder according to any one of claims 1-3, characterized in that the classified recovery device of coated solder comprises an organic colloid collection device (7) for collecting the organic colloid separated by soaking, the organic colloid collection device (7) comprises a collection pipe (73), a collection pump (72) connected in series with the collection pipe (73), and a collection nozzle (71) connected at the end of the collection pipe (73), and the collection nozzle (71) is used for floating on the surface of the solution.
6. The classification and recovery device for flux-cored solder according to any one of claims 1 to 3, characterized in that an exhaust gas purification device (8) for collecting, purifying and discharging the gas generated from the dissolving tank is further arranged in the case (1), the exhaust gas purification device (8) comprises an air suction pump (82), a purification tank and an air pipe (89), and the air suction pump (82) is used for pumping the gas generated from the dissolving liquid into the purification tank through the air pipe (89) for purification.
7. The classified recovery device of brazing filler metal with coating according to claim 6, wherein the purification tank is arranged outside the top of the case (1), the air pump (82) is installed on the top wall of the case (1), and the air pump (82) sends the extracted gas to the purification tank through an air pipe (89).
8. The classified recovery device of brazing filler metal with coating according to claim 6, wherein the exhaust purification device further comprises a purification chamber (81) arranged outside the top of the case (1), the air pump (82) and the purification tank are arranged in the purification chamber (81), the top of the purification chamber (81) is further provided with an exhaust fan (85), and the bottom of the purification chamber (81) is provided with a water leakage port.
9. The method for classifying and recovering the flux-cored solder is characterized in that the flux-cored solder is soaked in a dissolving solution; after the coating of the coating brazing filler metal is dissolved and falls off from the metal inner core, taking the metal inner core out of the dissolving solution; the dissolved solution was filtered to filter out insoluble matter in the dissolved solution.
10. The method for classifying and recycling the flux-cored solder according to claim 9, wherein the density of the dissolving solution is higher than that of the organic colloid in the flux-cored solder, so that the organic colloid separated by soaking in the flux-cored solder can float on the surface of the dissolving solution.
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| CN202210088575.8A CN114425189A (en) | 2022-01-25 | 2022-01-25 | Classified recovery device and method for coating brazing filler metal |
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