CN115823899A - Immersion type centralized melting furnace - Google Patents
Immersion type centralized melting furnace Download PDFInfo
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- CN115823899A CN115823899A CN202310020669.6A CN202310020669A CN115823899A CN 115823899 A CN115823899 A CN 115823899A CN 202310020669 A CN202310020669 A CN 202310020669A CN 115823899 A CN115823899 A CN 115823899A
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- 238000002844 melting Methods 0.000 title claims abstract description 30
- 230000008018 melting Effects 0.000 title claims abstract description 30
- 238000007654 immersion Methods 0.000 title claims abstract description 16
- 239000000463 material Substances 0.000 claims abstract description 122
- 238000010438 heat treatment Methods 0.000 claims abstract description 51
- 238000004321 preservation Methods 0.000 claims abstract description 43
- 238000009413 insulation Methods 0.000 claims abstract description 32
- 239000000779 smoke Substances 0.000 claims abstract description 27
- 238000007789 sealing Methods 0.000 claims abstract description 25
- 238000001514 detection method Methods 0.000 claims description 46
- 239000000428 dust Substances 0.000 claims description 23
- 239000012530 fluid Substances 0.000 claims description 20
- 238000007599 discharging Methods 0.000 claims description 16
- 238000003756 stirring Methods 0.000 claims description 16
- 238000000605 extraction Methods 0.000 claims description 14
- 238000011068 loading method Methods 0.000 claims description 11
- 238000002791 soaking Methods 0.000 claims description 10
- 238000000746 purification Methods 0.000 claims description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 7
- 238000007790 scraping Methods 0.000 claims description 7
- 229910002804 graphite Inorganic materials 0.000 claims description 3
- 239000010439 graphite Substances 0.000 claims description 3
- 238000001179 sorption measurement Methods 0.000 claims description 3
- 238000006555 catalytic reaction Methods 0.000 claims description 2
- 239000000919 ceramic Substances 0.000 claims description 2
- 239000012774 insulation material Substances 0.000 claims description 2
- 239000013049 sediment Substances 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 abstract description 23
- 239000002184 metal Substances 0.000 abstract description 23
- 239000007788 liquid Substances 0.000 abstract description 20
- 230000000694 effects Effects 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 4
- 238000011084 recovery Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000013461 design Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 15
- 239000007769 metal material Substances 0.000 description 8
- 238000013016 damping Methods 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention relates to the technical field of design of a centralized melting furnace, in particular to an immersion type centralized melting furnace which comprises a furnace body, a material taking device, a primary heat exchange device, a secondary heat exchange device, a controller and the like. The beneficial effects are that: the immersed centralized melting furnace can effectively assist in melting and heat preservation of metal through the heating rod inserted into the metal liquid, can achieve a better sealing effect through the feeding device and the material taking device in the using process of the furnace body, achieves a better heat insulation effect through the furnace body with a multilayer structure, can achieve recovery of heat in tail smoke through the primary heat exchanger, the first heat exchanger and the second heat exchanger, can maintain the temperature of the furnace body through the recovered heat, reduces heat loss, and has high practical value.
Description
Technical Field
The invention relates to the technical field of design of centralized melting furnaces, in particular to an immersion type centralized melting furnace.
Background
Metals with lower melting points such as aluminum alloy and the like can be heated by adopting a centralized melting furnace during melting processing, metal materials are put in from a feeding end in the heating process, the metals are melted into metal liquid after being burnt by a burner, and then the metal liquid is taken out from a discharging end. The existing centralized melting furnace is lack of effective sealing in the feeding and liquid discharging processes during operation, and meanwhile, the furnace body is lack of a better heat insulation structure, so that heat is easy to dissipate, more energy is required to be consumed, and meanwhile, the waste of energy is caused due to the lack of effective recovery of waste heat in tail smoke. On the other hand, the burner nozzle is used for heating metal materials and insulating metal liquid, and energy waste is caused due to insufficient heat utilization due to low heat transfer efficiency.
If the novel centralized melting furnace is used for carrying out auxiliary heating and heat preservation on the metal liquid through the heating rod immersed in the metal liquid, has better sealing and heat preservation effects, and can also fully recover the waste heat in tail smoke to improve the energy utilization efficiency, the problems can be effectively solved, and the immersed centralized melting furnace is provided for people.
Disclosure of Invention
The invention aims to provide an immersion type centralized melting furnace to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: an submerged type concentrated melting furnace, comprising:
the furnace body, it gets material chamber, heat preservation chamber and heating chamber to have set gradually from left to right in the furnace body, and get and link to each other through the interchange runner between material chamber and the heat preservation chamber, the upper end intercommunication in heat preservation chamber and heating chamber, and the furnace body is provided with material loading air guide channel in the upper end department that corresponds the heating chamber, be provided with the feed arrangement who is used for the material loading on the material loading air guide channel, and be provided with the buffer board that is used for slowing down material falling speed in the material loading air guide channel, the outer wall from interior to exterior of furnace body separates for first negative pressure layer, first heat preservation, second heat preservation and second negative pressure layer in proper order through thermal insulation material, and the furnace body installs the smoke collecting hood in the upper end department that corresponds material loading air guide channel, be provided with the connecting pipe on the smoke collecting hood, and be provided with in the smoke collecting hood and be used for carrying out the dust removal box that removes dust to the tail smoke, the furnace body is provided with the maintenance mouth that is used for overhauing and is used for the row's sediment in the position department that corresponds the heating chamber, and the furnace body has the nozzle of being connected with outside gas supply arrangement, fixed mounting has the air feed pump on the material chamber, and the soaking stick is used for the soaking device.
The material taking device comprises a material taking channel communicated with the material taking cavity, a first material taking push rod and a second material taking push rod are sequentially installed on the material taking channel from top to bottom, a first material taking valve plate used for sealing the material taking channel is driven by the output end of the first material taking push rod, a second material taking valve plate used for sealing the material taking channel is driven by the output end of the second material taking push rod, and a temporary cavity used for temporarily placing a crucible is formed between the first material taking valve plate and the second material taking valve plate;
the primary heat exchange device comprises a heat insulation box body, a circulating flow channel is formed in the heat insulation box body in a separated mode through a guide plate, a tail gas flow channel is formed in the circulating flow channel through a heat exchange pipe, an auxiliary heat exchange sheet for auxiliary heat exchange is arranged between the tail gas flow channel and the circulating flow channel, the front end of the tail gas flow channel is communicated with a connecting pipe, the tail end of the tail gas flow channel is communicated with a main purification device, the output end of the main purification device is communicated with a main gas pump, the output end of the main gas pump is connected with a first heat exchanger, a smoke exhaust pipe for exhausting tail gas provided by the main gas pump is arranged on the first heat exchanger, the tail end of the circulating flow channel is communicated with a first heat insulation layer, a second circulating pump for communicating the first heat insulation layer with the head end of the circulating flow channel is fixedly arranged on the furnace body, a first circulating pump for communicating the second heat insulation layer with the first heat exchanger is fixedly arranged on the furnace body, and fluid sent by the first circulating pump is sent into the second heat insulation layer again through a guide pipe after heat exchange;
the heat exchanger is provided with an external inlet and an external outlet for circulating external heat exchange fluid, the heat exchanger is provided with a discharge pipe and an inlet pipe for circulating fluids in the first heat-insulating layer and the second heat-insulating layer, the discharge pipe is connected with the first heat-insulating layer through a first electromagnetic valve and is connected with the second heat-insulating layer through a second electromagnetic valve, the first heat-insulating layer is connected with the inlet pipe through a first extraction pump, and the second heat-insulating layer is connected with the inlet pipe through a second extraction pump;
the controller, the controller is installed on the outer wall of furnace body, and installs respectively on the furnace body and be used for detecting the furnace body inner chamber temperature everywhere and the main pressure detection sensor and the main temperature detection sensor of atmospheric pressure information, and installs on the furnace body and be used for corresponding first temperature detection sensor and the second temperature detection sensor who detects first heat preservation in-layer temperature information respectively, the controller is got material push rod, second respectively and is got material push rod, first temperature detection sensor, main pressure detection sensor, main temperature detection sensor, second temperature detection sensor, first solenoid valve, second extraction pump, main air pump, first extraction pump, heating rod, air supply pump, first circulating pump and second circulating pump electric connection with first material push rod, second.
Preferably, the dust removal box includes with collection petticoat pipe fixed mounting and be used for collecting the thermal-insulated box body of smoke and dust, and is provided with the inlet channel with material loading air guide channel intercommunication on the thermal-insulated box body, install the dust screen that corresponds with the connecting pipe position on the thermal-insulated box body, and fixed mounting has the brush push rod of scraping with controller electric connection on the thermal-insulated box body, the output drive of scraping the brush push rod has the doctor-bar that is used for scraping the brush dust screen.
Preferably, the soaking device comprises a heat conduction sleeve sleeved on the heating rod, a main heat conduction sheet is installed on the heat conduction sleeve, and an auxiliary heat conduction sheet is fixedly installed on the main heat conduction sheet.
Preferably, the bottom of furnace body is provided with strutting arrangement, and strutting arrangement includes a pair of thermal-insulated backup pad, be provided with the snubber block between the thermal-insulated backup pad, and be located and install the support column between thermal-insulated backup pad and the snubber block on upper strata.
Preferably, the feeding device comprises a feeding channel communicated with the feeding air guide channel, a first feeding push rod and a second feeding push rod are sequentially mounted on the feeding channel from top to bottom, a first feeding valve plate used for sealing the feeding channel is driven by an output end of the first feeding push rod, and a second feeding valve plate used for sealing the feeding channel is driven by an output end of the second feeding push rod.
Preferably, a stirring motor electrically connected with the controller is fixedly installed on the furnace body, and the output end of the stirring motor drives a stirring paddle inserted into the heat preservation cavity for stirring.
Preferably, fixed mounting has first negative pressure pump and the first pump of the first negative pressure layer of intercommunication on the furnace body, and installs the first pressure detection sensor that is used for detecting the internal gas pressure of first negative pressure layer on the furnace body, fixed mounting has second negative pressure pump and the second pump of intercommunication second negative pressure layer on the furnace body, and fixed mounting has the second pressure detection sensor that is used for detecting the internal gas pressure of second negative pressure layer on the furnace body, first negative pressure pump, first pressure detection sensor, second negative pressure pump, second pump and second pressure detection sensor all with controller electric connection.
Preferably, the controller is a PLC controller or an industrial personal computer, and the first heat exchanger and the second heat exchanger are plate heat exchangers.
Preferably, a filter layer, a catalytic reaction layer and an activated carbon adsorption layer are sequentially arranged in the purification device from the air inlet end to the air outlet end, and the heating rod is sequentially composed of heat-conducting ceramic, a heating coil and a graphite rod core from outside to inside.
Preferably, the furnace body is provided with discharging equipment in the side department that corresponds to get the material chamber, and discharging equipment include with get the pipe of material chamber intercommunication, be provided with the discharge port that the opening faced down on the pipe, and the top of pipe installs the heater, the terminal fixed mounting of pipe has sealed push rod, and seals the output of push rod and install the heat conduction closed head that is used for sealing the discharge port, install the heat conduction piece of being connected with the heater in the heat conduction closed head, and the end of heat conduction closed head installs the heat insulating board, heater and sealed push rod all with controller electric connection.
Compared with the prior art, the invention has the beneficial effects that: the immersed centralized melting furnace can effectively assist in melting and heat preservation of metal through the heating rod inserted into the metal liquid, can achieve a better sealing effect through the feeding device and the material taking device in the using process of the furnace body, achieves a better heat insulation effect through the furnace body with a multilayer structure, can achieve recovery of heat in tail smoke through the primary heat exchanger, the first heat exchanger and the second heat exchanger, can maintain the temperature of the furnace body through the recovered heat, reduces heat loss, and has high practical value.
Drawings
FIG. 1 is a schematic structural view of example 1 of the present invention;
FIG. 2 is a side view of the structure of example 1 of the present invention;
FIG. 3 is a sectional view of a furnace body in embodiment 1 of the present invention;
fig. 4 is a schematic structural view of a dust removal box in embodiment 1 of the present invention;
FIG. 5 is a schematic structural view of a primary heat exchange apparatus in example 1 of the present invention;
fig. 6 is a schematic structural view of a soaking device in embodiment 1 of the present invention;
FIG. 7 is a schematic structural view of example 2 of the present invention;
fig. 8 is a schematic structural view of a discharge device in embodiment 2 of the present invention.
In the figure: 1. a furnace body; 2. a discharge device; 201. a conduit; 202. a thermally conductive closing head; 203. a heat conducting block; 204. a discharge port; 205. a heat insulation plate; 206. a heater; 207. closing the push rod; 3. a primary heat exchange device; 301. a circulating flow passage; 302. an exhaust gas flow channel; 303. an auxiliary heat exchanger fin; 304. a heat insulation box body; 305. a baffle; 4. a soaking device; 401. a main heat conducting sheet; 402. a thermally conductive sleeve; 403. an auxiliary heat-conducting fin; 5. a dust removal box; 501. a scraping and brushing push rod; 502. scraping a blade; 503. a dust filter screen; 504. an air intake passage; 505. a heat insulation box body; 6. a feeding device; 601. a first feed valve plate; 602. a first feed ram; 603. a feed channel; 604. a second feed valve plate; 605. a second feed ram; 7. a support device; 701. a thermally insulating support plate; 702. a support pillar; 703. a damper block; 8. a material taking device; 801. a material taking channel; 802. a first material extracting valve plate; 803. a first material taking push rod; 804. a temporary cavity; 805. a second material taking valve plate; 806. a second material taking push rod; 9. a smoke collecting hood; 10. a first temperature detection sensor; 11. a primary pressure detection sensor; 12. a primary temperature detection sensor; 13. a second temperature detection sensor; 14. a controller; 15. an access hole; 16. a discharge outlet; 17. a smoke exhaust pipe; 18. a first solenoid valve; 19. a drain pipe; 20. a second solenoid valve; 21. a second heat exchanger; 22. an external inlet; 23. an external drainage port; 24. an inlet pipe; 25. a second extraction pump; 26. a first heat exchanger; 27. a purification device; 28. a main air pump; 29. a first extraction pump; 30. a heating rod; 31. an air supply pump; 32. a first pressure detection sensor; 33. a first inflator; 34. a first negative pressure pump; 35. a second negative pressure pump; 36. a second inflator; 37. a second pressure detection sensor; 38. a first circulation pump; 39. a second circulation pump; 40. a buffer plate; 41. a feeding air guide channel; 42. a connecting pipe; 43. burning a nozzle; 44. a stirring motor; 45. a stirring paddle; 46. a heat preservation cavity; 47. exchanging a flow channel; 48. a heating cavity; 49. a material taking cavity; 50. a second negative pressure layer; 51. a second insulating layer; 52. a first insulating layer; 53. a first negative pressure layer.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art without creative efforts based on the technical solutions of the present invention belong to the protection scope of the present invention.
Example 1
Referring to fig. 1 to 6, an immersion type concentrated melting furnace includes:
referring to fig. 1 to 6, a material taking cavity 49, a heat preservation cavity 46 and a heating cavity 48 are sequentially arranged in the furnace body 1 from left to right, the material taking cavity 49 and the heat preservation cavity 46 are connected through an exchange flow passage 47, the heat preservation cavity 46 is communicated with the upper end of the heating cavity 48, a material feeding air guide passage 41 is arranged at the upper end of the heating cavity 48 corresponding to the furnace body 1, a material feeding device 6 for feeding is arranged on the material feeding air guide passage 41, a buffer plate 40 for slowing down the falling speed of the material is arranged in the material feeding air guide passage 41, the material feeding device 6 comprises a material feeding passage 603 communicated with the material feeding air guide passage 41, a first material feeding push rod 602 and a second material feeding push rod 605 are sequentially arranged on the material feeding passage 603 from top to bottom, the output end of the first material feeding push rod 602 drives a first material feeding valve plate 601 for closing the material feeding passage 603, the output end of the second material feeding push rod 605 drives a second material feeding valve plate 604 for closing the material feeding passage 603, the heat insulation plate 505 is arranged on the outer wall of the heat insulation dust collection box body 1, a dust collection box body is provided with a dust collection box body 5, a dust collection box body 5 and a dust collection box body 5, a dust collection box is arranged on the heat insulation box body 501 corresponding to which is connected with the dust collection box body, a dust collection box body 5, the furnace body 1 is provided with an access hole 15 for maintenance and a discharge hole 16 for slag discharge at a position corresponding to the heating cavity 48, the furnace body 1 is fixedly provided with a burner 43 connected with an external gas supply device at a position corresponding to the heating cavity 48, the furnace body 1 is fixedly provided with an air supply pump 31, the air supply pump 31 is connected with the burner 43, the heating cavity 48, the heat preservation cavity 46 and the material taking cavity 49 are all fixedly provided with heating rods 30, the heating rods 30 are provided with soaking devices 4 for heat conduction, the soaking devices 4 comprise heat conducting sleeves 402 sleeved on the heating rods 30, the heat conducting sleeves 402 are provided with main heat conducting sheets 401, the main heat conducting sheets 401 are fixedly provided with auxiliary heat conducting sheets 403, the bottom of the furnace body 1 is provided with a supporting device 7, and the supporting device 7 comprises a pair of heat insulating supporting plates 701, a damping block 703 is arranged between the heat insulation supporting plates 701, a supporting column 702 is arranged between the heat insulation supporting plates 701 on the upper layer and the damping block 703, a first negative pressure pump 34 and a first inflator pump 33 which are communicated with the first negative pressure layer 53 are fixedly installed on the furnace body 1, a first pressure detection sensor 32 for detecting the air pressure in the first negative pressure layer 53 is installed on the furnace body 1, a second negative pressure pump 35 and a second inflator pump 36 which are communicated with the second negative pressure layer 50 are fixedly installed on the furnace body 1, a second pressure detection sensor 37 for detecting the air pressure in the second negative pressure layer 50 is fixedly installed on the furnace body 1, and the first negative pressure pump 34, the first inflator pump 33, the first pressure detection sensor 32, the second negative pressure pump 35, the second inflator pump 36 and the second pressure detection sensor 37 are all electrically connected with the controller 14.
A material taking device 8, please refer to fig. 1 to 3, the material taking device 8 includes a material taking channel 801 communicated with the material taking cavity 49, and the material taking channel 801 is sequentially provided with a first material taking push rod 803 and a second material taking push rod 806 from top to bottom, an output end of the first material taking push rod 803 drives a first material taking valve plate 802 for closing the material taking channel 801, an output end of the second material taking push rod 803 drives a second material taking valve plate 805 for closing the material taking channel 801, and a temporary cavity 804 for temporarily placing a crucible is formed between the first material taking valve plate 802 and the second material taking valve plate 805;
referring to fig. 1, 2 and 4, the primary heat exchange device 3 includes a heat insulation box 304, the heat insulation box 304 is partitioned by a guide plate 305 to form a circulation flow channel 301, an exhaust flow channel 302 is formed in the circulation flow channel 301 through a heat exchange tube, an auxiliary heat exchange sheet 303 for auxiliary heat exchange is disposed between the exhaust flow channel 302 and the circulation flow channel 301, the front end of the exhaust flow channel 302 is communicated with a connection pipe 42, the tail end of the exhaust flow channel 302 is communicated with a main purification device 27, the output end of the main purification device 27 is communicated with a main air pump 28, the output end of the main air pump 28 is connected with a first heat exchanger 26, a smoke exhaust pipe 17 for exhausting the exhaust gas provided by the main air pump 28 is disposed on the first heat exchanger 26, the tail end of the circulation flow channel 301 is communicated with a first heat preservation layer 52, a second circulation pump 39 for communicating the first heat preservation layer 52 with the circulation flow channel 301 is fixedly disposed on the furnace body 1, a first heat preservation layer 38 for communicating the second heat preservation layer 51 with the first heat exchanger 26, the first heat exchange fluid is sent into the heat preservation layer 51 and sent into the second heat preservation layer 27 sequentially from an adsorption heating rod, and a graphite rod is disposed on the furnace body 1 sequentially;
referring to fig. 1 to 3, the second heat exchanger 21 is provided with an external inlet 22 and an external outlet 23 for circulating external heat exchange fluid, the second heat exchanger 21 is provided with an outlet pipe 19 and an inlet pipe 24 for circulating fluids in the first heat insulating layer 52 and the second heat insulating layer 51, the outlet pipe 19 is connected to the first heat insulating layer 51 through the first electromagnetic valve 18, the outlet pipe 19 is connected to the second heat insulating layer 51 through the second electromagnetic valve 20, the first heat insulating layer 50 is connected to the inlet pipe 24 through the first extraction pump 29, and the second heat insulating layer 51 is connected to the inlet pipe 24 through the second extraction pump 25;
referring to fig. 1 to 3, the controller 14 is installed on an outer wall of the furnace body 1, the furnace body 1 is respectively provided with a main pressure detection sensor 11 and a main temperature detection sensor 12 for detecting temperature and air pressure information of each position in an inner cavity of the furnace body 1, the furnace body 1 is provided with a first temperature detection sensor 10 and a second temperature detection sensor 13 for respectively detecting temperature information in a first heat preservation layer 52 and a second heat preservation layer 51, the controller 14 is respectively connected with a first material taking push rod 803, a second material taking push rod 806, the first temperature detection sensor 10, the main pressure detection sensor 11, the main temperature detection sensor 12, the second temperature detection sensor 13, a first electromagnetic valve 18, a second electromagnetic valve 20, a second extraction pump 25, a main air pump 28, a first extraction pump 29, a heating rod 30, an air supply pump 31, a first circulation pump 38 and a second circulation pump 39, the furnace body 1 is fixedly provided with a stirring motor 44 electrically connected with the controller 14, an output end of the stirring motor 44 drives a stirring paddle 45 inserted into a cavity 46, the controller 14 is used for controlling a first heat exchanger or a second industrial personal computer 26, and the plate heat exchanger 21.
In this embodiment, when melting of metal is required, the first feed valve plate 601 is first opened, metal material is placed into a position between the first feed valve plate 601 and the second feed valve plate 604, then the first feed valve plate 601 is closed, and after the closing is completed, the second feed valve plate 604 starts to be opened, at which time the metal material slides along the feed passage 603 toward the damping plate 40, and the metal material is sent into the heating chamber 48 under the guidance of the buffer plate 40, and then the external gas supply device starts to supply fuel to the burner 43 while the air supply pump 31 also supplies air to the burner 43, so that the metal material is melted by the high-temperature flame sprayed by the burner 43, the melted metal liquid flows into the heat preservation cavity 46 for heat preservation, the heat preservation cavity 46 is communicated with the material taking cavity 49 through the exchange flow passage 47, when the metal liquid in the heat preservation chamber 46 exceeds a specified height, the metal liquid flows into the material taking chamber 49 from the heat preservation chamber 46, at the same time, the liquid in the material taking cavity 49 and the heat preservation cavity 46 is exchanged so that the temperature of the metal liquid in the two cavities is consistent, the heat preservation cavity 46, the material taking cavity 49 and the heating cavity 48 are also internally provided with heating rods 30 immersed in the molten metal for auxiliary heating and heat preservation, the soaking device 4 on the heating rods 30 can better transfer the heat on the heating rods 30 to the molten metal to avoid overhigh local heat, meanwhile, the stirring motor 44 also stirs the metal liquid in the heat preservation cavity 46 by driving the stirring paddle 45, so as to further improve the temperature uniformity of the metal liquid, and the controller 14 can detect the temperature of each part inside the furnace body 1 through the main temperature detection sensor 12 so as to control the heating state of each heating rod 30 and the burner 43, so that a better heating effect is realized, and the metal liquid entering the material taking cavity 49 after the heating is finished waits for material taking. When taking materials, the first material taking valve plate 802 is opened firstly, then the crucible is placed into the temporary cavity 804, then the first material taking valve plate 802 is closed inwards to only leave a gap through which a lifting rope suspending the crucible can pass, then the second material taking valve plate 805 is opened to enable the crucible to enter the material taking cavity 49 along the material taking channel 801, so that material taking is completed, then the crucible is pulled upwards to the temporary cavity 804 and stays, meanwhile, the second material taking valve plate 805 completely seals the material taking channel 801, and then the first material taking valve plate 802 is opened completely to lift the crucible out to complete the material taking process. When metal materials are accelerated in the heating cavity 48, smoke is generated, the smoke enters the smoke collecting hood 9 along the feeding air guide channel 41 at the moment, then the smoke is filtered by the dust filtering net 503, large-particle smoke is intercepted in the heat insulation box body 505, then the smoke passes through the connecting pipe 42 to enter the tail air channel 302 for first heat exchange, then the smoke is purified by the purifying device 27 and then enters the first heat exchanger 26 for second heat exchange, and the smoke is discharged through the smoke discharging pipe 17 after the heat exchange is finished. The second circulating pump 39 can pump out the fluid in the first heat-preserving layer 52 and send the fluid into the primary heat-exchanging device 3, the fluid after heat exchange by the primary heat-radiating device 3 is sent into the first heat-preserving layer 52 again to realize heat preservation inside the furnace body 1, the first circulating pump 38 can pump out the fluid in the second heat-preserving layer 51 and send the fluid into the first heat-exchanging device 26, so that the fluid is sent into the second heat-preserving layer 51 again after heat exchange by the first heat-exchanging device 26 to preserve heat inside the furnace body 1, when the first temperature detection sensor 10 and the second temperature detection sensor 13 respectively detect that the temperatures in the first heat-preserving layer 52 and the second heat-preserving layer 51 are higher than the specified temperatures, the internal fluid in the first heat-preserving layer 52 and the second heat-preserving layer 51 can also be pumped out by the first pumping pump 29 and the second pumping pump 25 and sent into the second heat exchanger 21 to exchange heat, so that the redundant heat is recovered by the external heat-exchanging medium, the heat recovered by the external heat-exchanging medium can also be used for preheating the metal material which needs to be melted, and the internal fluid in the first heat-preserving layer 52 and the second heat-exchanging medium 52 and the second heat-preserving layer 51 can flow back to the internal fluid in the second heat-exchanging valve 18 and the second heat-exchanging device 51 again through the second heat-exchanging valve 20. The air pressure in the first negative pressure layer 53 of the device can be adjusted jointly through the first negative pressure pump 34 and the first inflator pump 33, and the air pressure in the second negative pressure layer 50 can be adjusted through the second negative pressure pump 35 and the second inflator pump 36, so that the heat dissipation speed in the furnace body 1 can be effectively adjusted through the air pressure in the first negative pressure layer 53 and the second negative pressure layer 50, the heat dissipation is conveniently isolated during operation, and the furnace body 1 can be rapidly cooled without working. When the main pressure detection sensor 11 detects that the pressure in the furnace body 1 is higher, the exhaust speed of the tail smoke is improved by extracting the air flow inside the furnace body 1 through the main air pump 28, the tail smoke is prevented from accumulating in the furnace body 1 to pollute the inner wall of the furnace body 1, the furnace body 1 can also discharge waste slag through the discharge port 16 when not working, local overhaul is carried out through the overhaul port 15, and therefore, the use is very convenient.
Example 2
Referring to fig. 7 to 8, in embodiment 1, the furnace body 1 is provided with a discharging device 2 at a side surface corresponding to the material taking cavity 49, the discharging device 2 includes a conduit 201 communicated with the material taking cavity 49, the conduit 201 is provided with a discharge port 204 with a downward opening, a heater 206 is installed above the conduit 201, a sealing push rod 207 is fixedly installed at a tail end of the conduit 201, a heat conduction sealing head 202 for sealing the discharge port 204 is installed at an output end of the sealing push rod 207, a heat conduction block 203 connected with the heater 206 is installed in the heat conduction sealing head 202, a heat insulation plate 205 is installed at a tail end of the heat conduction sealing head 202, and the heater 206 and the sealing push rod 207 are both electrically connected with the controller 14. The discharging device 2 allows molten metal liquid to be discharged into the crucible through the discharging port 204, during operation, the heat conduction sealing head 202 is pulled back to a non-working position through the sealing push rod 207, at the moment, the conduit 201 is communicated with the discharging port 204, the liquid can be discharged through the discharging port 204, after the discharging is finished, the sealing push rod 207 pushes the heat conduction sealing head 202 to the working position again, so that the communication between the conduit 201 and the discharging port 204 is disconnected, the heater 206 can heat the heat conduction block 203, the heat conduction block 203 continuously heats the metal liquid near the heat conduction sealing head 202 through the heat conduction sealing head 202, so that the liquid is prevented from being solidified, and the heat insulation plate 205 can effectively reduce the heat dissipation, so that the utilization efficiency of the heat is improved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. An immersion type concentrated melting furnace, comprising:
the furnace body (1), material taking cavity (49), heat preservation cavity (46) and heating cavity (48) are arranged in the furnace body (1) from left to right in proper order, and the material taking cavity (49) is connected with the heat preservation cavity (46) through an exchange flow channel (47), the upper ends of the heat preservation cavity (46) and the heating cavity (48) are communicated, a material loading air guide channel (41) is arranged at the upper end of the furnace body (1) corresponding to the heating cavity (48), a feeding device (6) for feeding is arranged on the material loading air guide channel (41), and a buffer plate (40) for slowing down the falling speed of materials is arranged in the material loading air guide channel (41), the outer wall from interior to exterior of furnace body (1) is separated in proper order for first negative pressure layer (53), first heat preservation (52), second heat preservation (51) and second negative pressure layer (50) through thermal insulation material, and furnace body (1) is in the upper end department that corresponds material loading air guide passageway (41) and is installed collection petticoat pipe (9), be provided with connecting pipe (42) on collection petticoat pipe (9), and be provided with in collection petticoat pipe (9) and be used for carrying out dust removal box (5) to the tail smoke, furnace body (1) is provided with in the position department that corresponds heating chamber (48) and is used for overhauing access hole (15) and be used for arranging bin outlet (16) of sediment, and furnace body (1) is located fixed mounting and is provided with outside gas feeding device in the position that corresponds heating chamber (48) The heating furnace comprises a furnace body (1), a connecting burner (43), an air supply pump (31) is fixedly installed on the furnace body (1), the air supply pump (31) is connected with the burner (43), heating rods (30) are fixedly installed in a heating cavity (48), a heat preservation cavity (46) and a material taking cavity (49), and soaking devices (4) used for conducting heat are arranged on the heating rods (30);
the material taking device (8) comprises a material taking channel (801) communicated with the material taking cavity (49), the material taking channel (801) is sequentially provided with a first material taking push rod (803) and a second material taking push rod (806) from top to bottom, the output end of the first material taking push rod (803) drives a first material taking valve plate (802) used for sealing the material taking channel (801), the output end of the second material taking push rod (803) drives a second material taking valve plate (805) used for sealing the material taking channel (801), and a temporary cavity (804) used for temporarily placing a crucible is formed between the first material taking valve plate (802) and the second material taking valve plate (805);
the primary heat exchange device (3) comprises a heat insulation box body (304), a circulation flow channel (301) is formed in the heat insulation box body (304) in a separated mode through a guide plate (305), an exhaust flow channel (302) is formed in the circulation flow channel (301) through a heat exchange tube, an auxiliary heat exchange sheet (303) for auxiliary heat exchange is arranged between the exhaust flow channel (302) and the circulation flow channel (301), the front end of the exhaust flow channel (302) is communicated with a connecting tube (42), the tail end of the exhaust flow channel (302) is communicated with a main purification device (27), the output end of the main purification device (27) is communicated with a main air pump (28), the output end of the main air pump (28) is connected with a first heat exchanger (26), a smoke discharge tube (17) used for discharging exhaust gas provided by the main air pump (28) is arranged on the first heat exchanger (26), the tail end of the circulation flow channel (301) is communicated with a first heat insulation layer (52), a second heat insulation layer (39) used for communicating the first heat insulation layer (52) with the head end of the main air pump (28) is fixedly arranged on the furnace body (1), a second heat insulation layer (39) used for communicating the first heat insulation layer (51) with the first heat insulation layer (51), and a second heat exchange fluid (51) used for feeding the first heat exchanger (38) into the first heat insulation layer (26) again, and a second heat exchange fluid which is fixedly arranged on the furnace body (51) and is communicated with a second heat exchange heat exchanger (38) and used for feeding the first heat exchange fluid in the first heat insulation layer (26) into the first heat exchanger (26);
the heat exchanger comprises a second heat exchanger (21), wherein an external inflow port (22) and an external drainage port (23) for circulating external heat exchange fluid are arranged on the second heat exchanger (21), a drainage pipe (19) and an inflow pipe (24) for circulating fluids in a first heat-insulating layer (52) and a second heat-insulating layer (51) are arranged on the second heat exchanger (21), the drainage pipe (19) is connected with the first heat-insulating layer (51) through a first electromagnetic valve (18), the drainage pipe (19) is connected with the second heat-insulating layer (51) through a second electromagnetic valve (20), the first heat-insulating layer (50) is connected with the inflow pipe (24) through a first extraction pump (29), and the second heat-insulating layer (51) is connected with the inflow pipe (24) through a second extraction pump (25);
the furnace body (1) is provided with a main pressure detection sensor (11) and a main temperature detection sensor (12) which are used for detecting temperature and air pressure information of each part of an inner cavity of the furnace body (1), the furnace body (1) is provided with a first temperature detection sensor (10) and a second temperature detection sensor (13) which are used for correspondingly detecting the temperature information in the first heat preservation layer (52) and the second heat preservation layer (51), and the controller (14) is respectively electrically connected with the first material taking push rod (803), the second material taking push rod (806), the first temperature detection sensor (10), the main pressure detection sensor (11), the main temperature detection sensor (12), the second temperature detection sensor (13), the first electromagnetic valve (18), the second electromagnetic valve (20), the second extraction pump (25), the main air pump (28), the first extraction pump (29), the heating rod (30), the air supply pump (31), the first circulation pump (38) and the second circulation pump (39).
2. An immersion type concentrated melting furnace according to claim 1, wherein: dust removal box (5) include with collection petticoat pipe (9) fixed mounting and be used for collecting thermal-insulated box body (505) of smoke and dust, and be provided with inlet channel (504) with material loading air guide channel (41) intercommunication on thermal-insulated box body (505), install on thermal-insulated box body (505) with connecting pipe (42) position correspondence filter dust net (503), and thermal-insulated box body (505) go up fixed mounting have with controller (14) electric connection scrape brush push rod (501), the output drive of scraping brush push rod (501) has doctor blade (502) that are used for scraping brush filter dust net (503).
3. An immersion type concentrated melting furnace according to claim 1, wherein: soaking device (4) are including cup jointing heat conduction sleeve (402) on heating rod (30), and install main heat conduction piece (401) on heat conduction sleeve (402), fixed mounting has supplementary heat conduction piece (403) on main heat conduction piece (401).
4. An immersion type concentrated melting furnace according to claim 1, wherein: the furnace body (1) bottom is provided with strutting arrangement (7), and strutting arrangement (7) include a pair of thermal-insulated backup pad (701), be provided with snubber block (703) between thermal-insulated backup pad (701), and be located and install support column (702) between thermal-insulated backup pad (701) and snubber block (703) on upper strata.
5. An immersion type concentrated melting furnace according to claim 1, wherein: the feeding device (6) comprises a feeding channel (603) communicated with the feeding air guide channel (41), a first feeding push rod (602) and a second feeding push rod (605) are sequentially mounted on the feeding channel (603) from top to bottom, the output end of the first feeding push rod (602) drives a first feeding valve plate (601) used for closing the feeding channel (603), and the output end of the second feeding push rod (605) drives a second feeding valve plate (604) used for closing the feeding channel (603).
6. An immersion type concentrated melting furnace according to claim 1, wherein: the furnace body (1) is fixedly provided with a stirring motor (44) which is electrically connected with the controller (14), and the output end of the stirring motor (44) drives a stirring paddle (45) which is inserted into the heat preservation cavity (46) for stirring.
7. An immersion type concentrated melting furnace according to claim 1, wherein: fixed mounting has first negative pressure pump (34) and first pump (33) of the first negative pressure layer of intercommunication (53) on furnace body (1), and installs first pressure detection sensor (32) that are used for detecting interior atmospheric pressure of first negative pressure layer (53) on furnace body (1), fixed mounting has second negative pressure pump (35) and second pump (36) of intercommunication second negative pressure layer (50) on furnace body (1), and fixed mounting has second pressure detection sensor (37) that are used for detecting interior atmospheric pressure of second negative pressure layer (50) on furnace body (1), first negative pressure pump (34), first pump (33), first pressure detection sensor (32), second negative pressure pump (35), second pump (36) and second pressure detection sensor (37) all with controller (14) electric connection.
8. An immersion type concentrated melting furnace according to claim 1, wherein: the controller (14) is a PLC controller or an industrial personal computer, and the first heat exchanger (26) and the second heat exchanger (21) are plate heat exchangers.
9. An immersion type concentrated melting furnace according to claim 1, wherein: the purification device (27) is internally provided with a filter layer, a catalytic reaction layer and an activated carbon adsorption layer from an air inlet end to an air outlet end in sequence, and the heating rod (30) consists of heat-conducting ceramic, a heating coil and a graphite rod core from outside to inside in sequence.
10. An immersion type concentrated melting furnace according to claim 1, wherein: furnace body (1) is provided with discharging device (2) in the side department that corresponds to getting material chamber (49), and discharging device (2) include with get pipe (201) of material chamber (49) intercommunication, be provided with opening discharge port (204) down on pipe (201), and heater (206) are installed to the top of pipe (201), the terminal fixed mounting of pipe (201) has closed push rod (207), and seals the output of push rod (207) and install heat conduction closed head (202) that are used for sealing discharge port (204), install heat conduction block (203) of being connected with heater (206) in heat conduction closed head (202), and heat conduction closed head (202) end installs heat insulating board (205), heater (206) and closed push rod (207) all with controller (14) electric connection.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310020669.6A CN115823899B (en) | 2023-01-06 | 2023-01-06 | Immersed type centralized melting furnace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310020669.6A CN115823899B (en) | 2023-01-06 | 2023-01-06 | Immersed type centralized melting furnace |
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| CN115823899B CN115823899B (en) | 2023-08-04 |
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| WO2008038556A1 (en) * | 2006-09-28 | 2008-04-03 | Nippon Crucible Co., Ltd. | Precious metal recovering apparatus |
| CN201402061Y (en) * | 2009-04-26 | 2010-02-10 | 湘潭联邦科技有限公司 | Residual heat exchanger for energy-saving-type melting furnace |
| CN203413953U (en) * | 2013-06-07 | 2014-01-29 | 宁波市北仑恒誉自动化科技有限公司 | Energy-saving melting furnace |
| CN210569934U (en) * | 2019-09-06 | 2020-05-19 | 湖南金昊新材料科技股份有限公司 | Metal melting furnace with heat exchange structure |
| CN112197587A (en) * | 2020-09-27 | 2021-01-08 | 合肥厚为新材料技术有限公司 | Waste metal smelting furnace convenient for secondary feeding |
| CN113188332A (en) * | 2021-05-08 | 2021-07-30 | 宁波兴展旺节能科技有限公司 | Centralized melting furnace |
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2023
- 2023-01-06 CN CN202310020669.6A patent/CN115823899B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008038556A1 (en) * | 2006-09-28 | 2008-04-03 | Nippon Crucible Co., Ltd. | Precious metal recovering apparatus |
| CN201402061Y (en) * | 2009-04-26 | 2010-02-10 | 湘潭联邦科技有限公司 | Residual heat exchanger for energy-saving-type melting furnace |
| CN203413953U (en) * | 2013-06-07 | 2014-01-29 | 宁波市北仑恒誉自动化科技有限公司 | Energy-saving melting furnace |
| CN210569934U (en) * | 2019-09-06 | 2020-05-19 | 湖南金昊新材料科技股份有限公司 | Metal melting furnace with heat exchange structure |
| CN112197587A (en) * | 2020-09-27 | 2021-01-08 | 合肥厚为新材料技术有限公司 | Waste metal smelting furnace convenient for secondary feeding |
| CN113188332A (en) * | 2021-05-08 | 2021-07-30 | 宁波兴展旺节能科技有限公司 | Centralized melting furnace |
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| CN115823899B (en) | 2023-08-04 |
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Denomination of invention: An immersion type centralized melting furnace Granted publication date: 20230804 Pledgee: Ningbo Beilun Rural Commercial Bank Co.,Ltd. Gaotang sub branch Pledgor: NINGBO XINGZHANWANG ENERGY SAVING TECHNOLOGY CO.,LTD. Registration number: Y2024980039679 |