CN115962652A - Micro-burning loss melting system with double functions of heat insulation and heat recovery and use method - Google Patents
Micro-burning loss melting system with double functions of heat insulation and heat recovery and use method Download PDFInfo
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- CN115962652A CN115962652A CN202210363492.5A CN202210363492A CN115962652A CN 115962652 A CN115962652 A CN 115962652A CN 202210363492 A CN202210363492 A CN 202210363492A CN 115962652 A CN115962652 A CN 115962652A
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- 238000009825 accumulation Methods 0.000 claims description 59
- 229910052751 metal Inorganic materials 0.000 claims description 49
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- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 21
- 239000001301 oxygen Substances 0.000 claims description 21
- 229910052760 oxygen Inorganic materials 0.000 claims description 21
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- 238000004512 die casting Methods 0.000 claims description 8
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Abstract
The invention provides a micro-burning loss melting system with double functions of heat insulation and heat recovery and a using method thereof. The heat storage cavity and the heat accumulator not only have the functions of absorbing the waste heat of tail gas and heating combustion-supporting air, but also have the function of heat insulation and protection on a high-temperature area of the furnace pipe, are beneficial to reducing heat loss, and reduce the consumption of heat-insulating materials and the production cost.
Description
Technical Field
The invention relates to the field of metal processing, in particular to a micro-burning loss melting system with double functions of heat insulation and heat recovery and a using method thereof.
Background
The smelting furnace is equipment for melting metal ingots and some waste metals, adding necessary alloy components, and smelting the metal ingots and the waste metals into required alloy through operations of slagging-off, refining and the like.
Smelting furnace receives extensive use in modern old and useless metal recovery process, nevertheless following some weak points often can appear in the use of current smelting furnace, and heat resource waste often can appear seriously in the use of current metal smelting furnace, and the indoor heat at smelting furnace place piles up, influences thermal giving off and causes abominable operational environment.
Smelting is a refining technology, which is to extract metals from ores by roasting, smelting, electrolysis, using chemical agents and other methods, reduce impurities contained in the metals or increase certain components in the metals, and refine the metals into required metals.
Smelting is one of common metal smelting methods, when metal is smelted by smelting, the temperature needs to reach very high temperature, and in order to avoid heat loss, a heat recovery device is proposed, for example, a chemical smelting waste heat recovery device convenient to save energy and protect environment is disclosed in chinese patent CN 106871653A.
There is a need for a melting furnace system with both thermal insulation and heat recovery that addresses the above-mentioned problems.
Disclosure of Invention
The invention provides a micro-burning loss melting system with double functions of heat insulation and heat recovery and a using method thereof, and solves the problems that the existing melting furnace has poor heat insulation effect and does not have the heat recovery function by technically improving the structure of the existing boiler.
In order to achieve the purpose, the invention adopts the technical scheme that:
the utility model provides a thermal-insulated and heat recovery dual function's little loss of burning system that melts, includes furnace body, feeding mechanism, hot oxygen separator, combustor subassembly, heat accumulation chamber subassembly, ventilation subassembly and control system, the furnace body from interior to exterior divide into stove courage, inside heat insulation district, heat accumulation district and outside insulating layer, be provided with in the stove courage and throw the material and melt district, the zone of heating and get the material district, three regional lower extreme communicates each other, it is provided with feeding mechanism to get material district department, the zone of heating top is provided with the combustion chamber, set up the hot oxygen separator between combustion chamber and the molten metal, the combustion chamber is connected with the combustor subassembly, combustor subassembly upper end is connected with heat accumulation chamber subassembly, it links to each other through ventilation subassembly and external world to hold hot chamber subassembly, ventilation subassembly and combustor subassembly still are connected with control system.
Preferably, the combustor subassembly includes first combustor, second combustor and third combustor, heat accumulation chamber subassembly includes first heat accumulation chamber, second heat accumulation chamber and third heat accumulation chamber, be provided with the heat accumulator in first heat accumulation chamber, second heat accumulation chamber and the third heat accumulation chamber, first heat accumulation chamber and first combustor intercommunication, second heat accumulation chamber and second combustor intercommunication, third heat accumulation chamber and third combustor intercommunication, the ventilation subassembly includes air inlet pipe assembly, air-out pipeline subassembly, air inlet pump, gas outlet pump and control valve subassembly, and control valve subassembly sets up on air inlet pipe assembly and air-out pipeline subassembly, control valve subassembly is used for controlling the intercommunication of each air inlet pipe assembly and air-out pipeline subassembly, control valve subassembly still is connected with control system.
Preferably, the air inlet pipe assembly includes first air inlet pipe, second air inlet pipe and third air inlet pipe, it includes first air-out pipeline, second air-out pipeline and third air-out pipeline to go out the pipeline assembly, first air inlet pipe and first air-out pipeline one end all link to each other with first heat accumulation chamber, first air inlet pipe and the first air-out pipeline other end link to each other with air intake pump and gas outlet pump respectively, second air inlet pipe and second air-out pipeline one end all link to each other with second heat accumulation chamber, second air inlet pipe and second air-out pipeline other end link to each other with air intake pump and gas outlet pump respectively, third air inlet pipe and third air-out pipeline one end all link to each other with third heat accumulation chamber, third air inlet pipe and third air-out pipeline other end link to each other with air intake pump and gas outlet pump respectively.
Preferably, temperature sensors are arranged in the first heat storage cavity, the second heat storage cavity and the third heat storage cavity, and the temperature sensors are connected with a control system.
Preferably, protective gas is filled in the upper space of the metal liquid in the material taking area.
Preferably, the material taking mechanism comprises a quantitative material taking mechanism and a material discharging hole, a material receiving groove is formed in the outer side of the furnace body, the quantitative material taking mechanism is communicated to a material chamber of the external die casting machine through the material receiving groove, and the material discharging hole is formed in the lower end of the material taking area and connected to the transfer bag.
Preferably, the hot oxygen separator is a hot oxygen separation floating plate.
Preferably, a preheating roasting chamber is arranged at the upper part of the feeding melting area.
A method for using a micro-burning loss melting system with double functions of heat insulation and heat recovery comprises the following steps:
s1, blanking, namely putting the materials into a preheating roasting area manually or mechanically, and immersing the materials into the metal liquid below the materials for melting under the self gravity;
s2, continuously burning by a burner at the upper part of the heating area, transferring heat to molten metal at the lower part through a hot oxygen separator at the lower part of the burning area, and discharging tail gas into a heat storage cavity through an exhaust port of the burner;
s2.1, opening a control valve assembly at a third air inlet pipeline connected with the heat accumulation cavity through a control system, enabling combustion-supporting air to enter a third combustor from the third heat accumulation cavity, igniting the third combustor, enabling combustion tail gas to enter a first heat accumulation cavity through a pipeline of the first combustor and heating a heat accumulator in the first heat accumulation cavity;
s2.2, when the heat accumulator in the first heat storage cavity reaches a preset temperature, the control system sends an instruction, the third combustor stops firing, the control valve assembly is switched, combustion-supporting air enters from the first heat storage cavity, the heat accumulator releases heat to the combustion-supporting air, the first combustor is ignited, and combustion tail gas enters the second heat storage cavity through a pipeline of the second combustor and heats the heat accumulator;
s2.3, when the heat accumulator in the second heat accumulation cavity reaches a preset temperature, the control system sends an instruction, the first burner stops firing, the control valve assembly switches, combustion-supporting air enters from the second heat accumulation cavity, the heat accumulator releases heat to the combustion-supporting air, the second burner is ignited, and combustion tail gas enters into a third heat accumulation cavity through a pipeline of a third burner and heats the heat accumulator;
s2.4, when the heat accumulator in the third heat accumulation cavity reaches a preset temperature, the control system sends an instruction, the second combustor stops firing, the control valve assembly is switched, combustion-supporting air enters from the third heat accumulation cavity, the heat accumulator releases heat to the combustion-supporting air, the third combustor is ignited, and combustion tail gas enters the first heat accumulation cavity through the pipeline of the first combustor and heats the heat accumulator;
s2.5, pumping tail gas discharged from each heat storage cavity into a preheating roasting chamber through a tail gas pump, preheating and roasting the metal raw materials in the preheating roasting chamber, further recovering residual heat in the tail gas, and then discharging or purifying and then discharging;
heating the combustion chamber in this sequence;
s3, material taking, wherein the molten metal is conveyed to a material chamber of a die casting machine or a transfer bag through a material taking mechanism arranged in a material taking area or is discharged to a corresponding container through a material discharging hole in the bottom of the transfer bag.
The invention has the beneficial effects that:
the invention manually or mechanically puts the materials into a preheating roasting area, removes moisture, oil stain, surface paint and the like contained in the materials under the action of tail gas and the heat of lower feed liquid, reduces impurities entering molten metal, absorbs the heat in the tail gas and improves the heat efficiency;
the material sinks under the self gravity and is immersed into the metal liquid below, and the metal liquid is utilized to transfer heat, so that melting under the oxygen-free condition is realized;
the combustor on the upper portion of the zone of heating lasts the burning, and the heat passes through the hot oxygen separator of combustion zone lower part and passes to lower part molten metal, and tail gas discharges into the heat accumulation case through the gas vent to avoid gas and oxygen direct contact molten metal wherein, greatly reduce the scaling loss, the heat passes through the molten metal and lasts toward throwing the material melting zone transmission, and ordinary combustion chamber temperature is about 1200 degrees, and this thermal-insulated integrative stove combustion chamber temperature of heat accumulation can reach about 1500 degrees, and the combustion effect is better, and temperature utilization rate is high, and is more energy-concerving and environment-protective.
Each zone of the invention is divided into a plurality of functional layers (a furnace pipe, an inner heat insulation layer, a heat accumulation zone and an outer heat insulation layer) from inside to outside along the radial direction to form a temperature gradient which is gradually decreased from inside to outside. The heat storage cavity and the heat storage body therein have the functions of absorbing the waste heat of the tail gas and heating combustion-supporting air, and simultaneously play a role in heat insulation and protection for a high-temperature area of the furnace, thereby being beneficial to reducing the temperature difference between the furnace and the environment, reducing the heat loss and reducing the consumption of heat-insulating materials and the production cost.
Drawings
FIG. 1 is a schematic view of the furnace structure of the present invention;
FIG. 2 is a schematic view of the vent assembly of the present invention;
FIG. 3 is a top view of the furnace body of the present invention;
the reference numbers illustrate: the device comprises a furnace body 1, a furnace container 11, a feeding melting zone 111, a heating zone 112, a combustion chamber 1121, a material taking zone 113, a preheating roasting chamber 114, an internal heat insulation zone 12, a heat storage zone 13, an external heat insulation layer 14, a material taking mechanism 2, a quantitative material taking mechanism 21, a material discharging hole 22, a hot oxygen separator 3, a burner assembly 4, a first burner 41, a second burner 42, a third burner 43, a heat storage cavity assembly 5, a first heat storage cavity 51, a second heat storage cavity 52, a third heat storage cavity 53, a ventilation assembly 6, an air inlet pipeline assembly 61, a first air inlet pipeline 611, a second air inlet pipeline 612, a third air inlet pipeline 613, an air outlet pipeline assembly 62, a first air outlet pipeline 621, a second air outlet pipeline 622, a third air outlet pipeline 623, an air inlet pump 63, an air outlet pump 64, a control valve assembly 65, a control system 7 and a water receiving tank 8.
Detailed Description
Referring to fig. 1-3, the invention provides a heat insulation and heat recovery dual-function micro-burning loss melting system, which comprises a furnace body 1, a material taking mechanism 2, a hot oxygen separator 3, a burner assembly 4, a heat storage cavity assembly 5, a ventilation assembly 6 and a control system 7, wherein the furnace body 1 is divided into a furnace pipe 11, an internal heat insulation area 12, a heat storage area 13 and an external heat insulation layer 14 from inside to outside, a feeding melting area 111, a heating area 112 and a material taking area 113 are arranged in the furnace pipe 11, the lower ends of the three areas are mutually communicated, the material taking area 113 is provided with the material taking mechanism 2, the top of the heating area 112 is provided with a combustion chamber 1121, the hot oxygen separator 3 is arranged between the combustion chamber 1121 and molten metal, the combustion chamber is connected with the burner assembly 4, the upper end of the burner assembly 4 is connected with the heat storage cavity assembly 5, the heat storage cavity assembly 5 is connected with the outside through the ventilation assembly 6, and the burner assembly 4 are further connected with the control system 7.
The furnace body 1 encloses a closed loop circle, a circle, an ellipse, a rectangle or the deformation thereof.
The furnace body 1 is divided into a plurality of areas (A, B, C.) along the periphery, and each area is divided into a plurality of interlayers (a furnace pipe 11, an inner heat insulation layer, a heat accumulation area 13 and an outer heat insulation layer 14) from inside to outside along the radial direction.
Further, in order to realize the heat recycling of the waste heat of the combustion exhaust gas, the burner assembly 4 includes a first burner 41, a second burner 42 and a third burner 43, the heat storage chamber assembly 5 includes a first heat storage chamber 51, a second heat storage chamber 52 and a third heat storage chamber 53, heat storage bodies are disposed in the first heat storage chamber 51, the second heat storage chamber 52 and the third heat storage chamber 53, the first heat storage chamber 51 is communicated with the first burner 41, the second heat storage chamber 52 is communicated with the second burner 42, the third heat storage chamber 53 is communicated with the third burner 43, the ventilation assembly 6 includes an air inlet pipe assembly 61, an air outlet pipe assembly 62, an air inlet pump 63, an air outlet pump 64 and a control valve assembly 65, the control valve assembly 65 is disposed on the air inlet pipe assembly 61 and the air outlet pipe assembly 62, the control valve assembly 65 is used for controlling the communication between the air inlet pipe assembly 61 and the air outlet pipe assembly 62, and the control valve assembly 65 is further connected with the control system 7.
Further, the air inlet duct assembly 61 includes a first air inlet duct 611, a second air inlet duct 612 and a third air inlet duct 613, the air outlet duct assembly 62 includes a first air outlet duct 621, a second air outlet duct 622 and a third air outlet duct 623, the first air inlet duct 611 and the first air outlet duct 621 all link to each other with the first heat storage chamber 51, the first air inlet duct 611 and the first air outlet duct 621 other end link to each other with the air inlet pump 63 and the air outlet pump 64 respectively, the second air inlet duct 612 and the second air outlet duct 622 one end all link to each other with the second heat storage chamber 52, the second air inlet duct 612 and the second air outlet duct 622 other end link to each other with the air inlet pump 63 and the air outlet pump 64 respectively, the third air inlet duct 613 and the third air outlet duct 623 one end all link to each other with the third heat storage chamber 53, the third air inlet duct 613 and the third air outlet duct 623 other end link to each other with the air inlet pump 63 and the air outlet pump 64 respectively.
Further, in order to realize real-time detection of the temperature in the heat storage chamber, temperature sensors are arranged in the first heat storage chamber 51, the second heat storage chamber 52 and the third heat storage chamber 53, and the temperature sensors are connected with the control system 7. The control system realizes the functions of combustion, heat storage, combustion air preheating and the like by controlling ignition, opening and closing of the valve, starting and stopping of the air inlet pump and the air outlet pump and the like.
Further, in order to prevent the molten metal in the material taking region 113 from being oxidized, a protective gas is filled in the upper space of the molten metal in the material taking region 113.
Further, for the convenience of getting the material, extracting mechanism 2 includes ration extracting mechanism 21 and blowing hole 22, and the furnace body 1 outside is provided with connects chute 8, ration extracting mechanism 21 communicates to outside die casting machine material room through connecting chute 8, blowing hole 22 sets up and is just getting 113 lower extreme positions in material district blowing hole 22 is connected to the transportation package. When doing the machine limit stove, connect chute 8 to send the molten metal to die casting machine material room, when doing central furnace usefulness, connect the transportation package and send the molten metal to each die casting machine through transporting the package, or by bottom blowing hole 22 blowing to transporting the package.
Further, in order to avoid direct contact of fuel gas and oxygen in the fuel gas with molten metal, burning loss is greatly reduced; the hot oxygen separator 3 is a hot oxygen separation floating plate.
Further, a preheating roasting chamber 114 is arranged above the feeding melting zone 111. The heat of tail gas and lower feed liquid removes the moisture, oil stain, surface paint and the like contained in the material, reduces the impurities entering the metal liquid, absorbs the heat in the tail gas and improves the heat efficiency.
A method for using a micro-burning loss melting system with double functions of heat insulation and heat recovery comprises the following steps:
s1, blanking, namely putting the materials into a preheating roasting area manually or mechanically, and immersing the materials into the metal liquid below the materials for melting under the self gravity;
s2, continuously burning by using a burner at the upper part of the heating area 112, transferring heat to molten metal at the lower part through a hot oxygen separator 3 at the lower part of the burning area, and discharging tail gas into a heat storage cavity through a burner exhaust port;
s2.1, opening a control valve assembly 65 at a third air inlet pipe 613 connected with the heat accumulation cavity through a control system 7, enabling combustion-supporting air to enter a third combustor 43 from the third heat accumulation cavity 53, igniting the third combustor 43, enabling combustion tail gas to enter a first heat accumulation cavity 51 through a pipe of a first combustor 41 and heating heat accumulators in the first heat accumulation cavity;
s2.2, when the heat accumulator in the first heat accumulation cavity 51 reaches a preset temperature, the control system 7 sends an instruction, the third burner 43 is shut down, the control valve assembly 65 is switched, combustion-supporting air enters from the first heat accumulation cavity 51, the heat accumulator releases heat to the combustion-supporting air, the first burner 41 is ignited, and combustion tail gas enters the second heat accumulation cavity 52 through a pipeline of the second burner 42 and heats the heat accumulator;
s2.3, when the heat accumulator in the second heat storage cavity 52 reaches a preset temperature, the control system 7 sends a command, the first combustor 41 is stopped, the control valve assembly 65 is switched, combustion-supporting air enters from the second heat storage cavity 52, the heat accumulator releases heat to the combustion-supporting air, the second combustor 42 is ignited, and combustion tail gas enters the third heat storage cavity 53 through a pipeline of the third combustor 43 and heats the heat accumulator;
s2.4, when the heat accumulator in the third heat accumulation cavity 53 reaches a preset temperature, the control system 7 sends an instruction, the second combustor 42 is shut down, the control valve assembly 65 is switched, combustion-supporting air enters from the third heat accumulation cavity 53, the heat accumulator releases heat to the combustion-supporting air, the third combustor 43 is ignited, and combustion tail gas enters the first heat accumulation cavity 51 through the pipeline of the first combustor 41 and heats the heat accumulator;
s2.5, pumping tail gas discharged from each heat storage cavity into a preheating roasting chamber through a tail gas pump, preheating and roasting the metal raw materials in the preheating roasting chamber, further recovering residual heat in the tail gas, and then discharging or purifying and then discharging;
heating the combustion chamber cyclically in this order;
and S3, material taking, wherein the molten metal is delivered to a material chamber or a transfer bag of the die casting machine through a material taking mechanism arranged in the material taking area 113 or is discharged to a corresponding container through a material discharging hole 22 at the bottom of the material taking mechanism.
The combustor and the heat accumulation cavity are not limited to three groups, and a plurality of heat accumulation cavity assemblies can be arranged according to actual use conditions for heat recovery.
The invention has the following characteristics:
the invention manually or mechanically puts the materials into a preheating roasting area, removes moisture, oil stain, surface paint and the like contained in the materials under the action of tail gas and heat of lower feed liquid, reduces impurities entering molten metal, absorbs heat in the tail gas and improves heat efficiency;
the material sinks under the self gravity and is immersed into the metal liquid below, and the metal liquid is utilized to transfer heat, so that melting under the oxygen-free condition is realized;
the combustor on the upper portion of the zone of heating lasts the burning, and the heat passes through the hot oxygen separator of combustion zone lower part and passes to lower part molten metal, and tail gas discharges into the heat accumulation case through the gas vent to avoid gas and oxygen direct contact molten metal wherein, greatly reduce the scaling loss, the heat passes through the molten metal and lasts toward throwing the material melting zone transmission, and ordinary combustion chamber temperature is about 1200 degrees, and this thermal-insulated integrative stove combustion chamber temperature of heat accumulation can reach about 1500 degrees, and the combustion effect is better, and temperature utilization rate is high, and is more energy-concerving and environment-protective.
Each zone of the invention is divided into a plurality of functional layers (a furnace pipe, an inner heat insulation layer, a heat accumulation zone and an outer heat insulation layer) from inside to outside along the radial direction to form a temperature gradient which is gradually decreased from inside to outside. The heat storage cavity and the heat storage body therein not only have the functions of absorbing the waste heat of the tail gas and heating combustion-supporting air, but also play a role in heat insulation and protection of a high-temperature area of the furnace pipe, are beneficial to reducing the temperature difference between the furnace pipe and the environment, reducing the heat loss and reducing the consumption of heat-insulating materials and the production cost.
Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
The standard parts used in the invention can be purchased from the market, the special-shaped parts can be customized according to the description of the specification and the description of the attached drawings, the specific connection mode of each part adopts conventional means such as mature bolts, rivets, welding and the like in the prior art, the machines, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, so that the detailed description is omitted.
In the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "secured" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integral to one another; can be mechanically connected or connected; either directly or through an intermediary, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in a specific case to those skilled in the art.
Claims (9)
1. The utility model provides a thermal-insulated and heat recovery bifunctional's little loss of burning system of melting, its characterized in that, includes furnace body, feeding agencies, hot oxygen separator, combustor subassembly, heat accumulation chamber subassembly, ventilation unit and control system, furnace body from interior to exterior divide into furnace pipe, inside heat insulation district, heat accumulation district and outside insulating layer, be provided with in the furnace pipe and throw the material melting district, the zone of heating and get the material district, three regional lower extreme communicates each other, it is provided with feeding agencies to get material district department, it is provided with the combustion chamber to get the zone of heating top, set up the hot oxygen separator between combustion chamber and the molten metal, the combustion chamber is connected with the combustor subassembly, combustor subassembly upper end is connected with heat accumulation chamber subassembly, heat accumulation chamber subassembly passes through ventilation unit and links to each other with the external world, ventilation unit and combustor subassembly still are connected with control system.
2. The system of claim 1, wherein the burner assembly comprises a first burner, a second burner and a third burner, the heat storage chamber assembly comprises a first heat storage chamber, a second heat storage chamber and a third heat storage chamber, heat accumulators are arranged in the first heat storage chamber, the second heat storage chamber and the third heat storage chamber, the first heat storage chamber is communicated with the first burner, the second heat storage chamber is communicated with the second burner, the third heat storage chamber is communicated with the third burner, the ventilation assembly comprises an air inlet pipeline assembly, an air outlet pipeline assembly, an air inlet pump, an air outlet pump and a control valve assembly, the control valve assembly is arranged on the air inlet pipeline assembly and the air outlet pipeline assembly, the control valve assembly is used for controlling the communication of the air inlet pipeline assembly and the air outlet pipeline assembly, and the control valve assembly is further connected with the control system.
3. The system of claim 2, wherein the air inlet pipe assembly comprises a first air inlet pipe, a second air inlet pipe and a third air inlet pipe, the air outlet pipe assembly comprises a first air outlet pipe, a second air outlet pipe and a third air outlet pipe, the first air inlet pipe and the first air outlet pipe are connected to the first heat storage chamber, the first air inlet pipe and the first air outlet pipe are connected to the air inlet pump and the air outlet pump, the second air inlet pipe and the second air outlet pipe are connected to the second heat storage chamber, the second air inlet pipe and the second air outlet pipe are connected to the air inlet pump and the air outlet pump, the third air inlet pipe and the third air outlet pipe are connected to the third heat storage chamber, and the third air inlet pipe and the third air outlet pipe are connected to the air inlet pump and the air outlet pump.
4. The dual thermal insulation and heat recovery micro-ablation melting system according to claim 1, wherein the first, second and third heat storage chambers are provided with temperature sensors, and the temperature sensors are connected with a control system.
5. The dual-function micro-ablation melting system with heat insulation and heat recovery as claimed in claim 1, wherein the shielding gas is filled in the upper space of the metal liquid in the material-taking zone.
6. The dual thermal insulation and heat recovery micro-ablation melting system as claimed in claim 1, wherein the material taking mechanism comprises a quantitative material taking mechanism and a material discharging hole, a material receiving groove is arranged outside the furnace body, the quantitative material taking mechanism is communicated to a material chamber of an external die casting machine through the material receiving groove, the material discharging hole is arranged at the lower end part of the material taking area, and the material discharging hole is connected to the transfer bag.
7. The dual thermal insulation and heat recovery micro-burnout melting system of claim 1, wherein the hot oxygen separator is a hot oxygen separation float plate.
8. The dual-function micro-burn-out melting system for both thermal insulation and heat recovery as claimed in claim 1, wherein a preheating roasting chamber is provided above said charge melting zone.
9. The use method of the micro-burning loss melting system with the double functions of heat insulation and heat recovery is characterized by comprising the following steps:
s1, blanking, namely putting the materials into a preheating roasting area manually or mechanically, and immersing the materials into the molten metal below under the self gravity for melting;
s2, continuously burning by using a burner at the upper part of the heating area, transferring heat to molten metal at the lower part by using a hot oxygen separator at the lower part of the burning area, and discharging tail gas into a heat storage cavity through an exhaust port of the burner;
s2.1, opening a control valve assembly at a third air inlet pipeline connected with the heat accumulation cavity through a control system, enabling combustion-supporting air to enter a third combustor from the third heat accumulation cavity, igniting the third combustor, enabling combustion tail gas to enter a first heat accumulation cavity through a pipeline of the first combustor and heating a heat accumulator in the first heat accumulation cavity;
s2.2, when the heat accumulator in the first heat accumulation cavity reaches a preset temperature, the control system sends an instruction, the third burner stops firing, the control valve assembly switches, combustion-supporting air enters from the first heat accumulation cavity, the heat accumulator releases heat to the combustion-supporting air, the first burner is ignited, and combustion tail gas enters the second heat accumulation cavity through a pipeline of the second burner and heats the heat accumulator;
s2.3, when the heat accumulator in the second heat accumulation cavity reaches a preset temperature, the control system sends an instruction, the first burner stops firing, the control valve assembly switches, combustion-supporting air enters from the second heat accumulation cavity, the heat accumulator releases heat to the combustion-supporting air, the second burner is ignited, and combustion tail gas enters into a third heat accumulation cavity through a pipeline of a third burner and heats the heat accumulator;
s2.4, when the heat accumulator in the third heat storage cavity reaches a preset temperature, the control system sends an instruction, the second combustor stops firing, the control valve assembly is switched, combustion-supporting air enters from the third heat storage cavity, the heat accumulator releases heat to the combustion-supporting air, the third combustor is ignited, and combustion tail gas enters the first heat storage cavity through the pipeline of the first combustor and heats the heat accumulator in the first heat storage cavity;
s2.5, pumping tail gas discharged from each heat storage cavity into a preheating roasting chamber through a tail gas pump, preheating and roasting the metal raw materials in the preheating roasting chamber, further recovering residual heat in the tail gas, and then discharging or purifying and then discharging;
heating the combustion chamber cyclically in this order;
s3, material taking, wherein the molten metal is conveyed to a material chamber of a die casting machine or a transfer bag through a material taking mechanism arranged in a material taking area or is discharged to a corresponding container through a material discharging hole in the bottom of the transfer bag.
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| CN202210363492.5A CN115962652A (en) | 2022-04-08 | 2022-04-08 | Micro-burning loss melting system with double functions of heat insulation and heat recovery and use method |
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| CN202210363492.5A CN115962652A (en) | 2022-04-08 | 2022-04-08 | Micro-burning loss melting system with double functions of heat insulation and heat recovery and use method |
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Effective date of registration: 20240724 Address after: No. 101, Liuchong Group, Panchun Village, Longfu Town, Liuyang City, Changsha City, Hunan Province 410300 Applicant after: Hunan Guozhu Energy Technology Co.,Ltd. Country or region after: China Address before: No. g, 23 / F, block 9, lvchunxuan, Lijing garden, Changping Town, Dongguan City, Guangdong Province, 523000 Applicant before: Wu Shuping Country or region before: China |