CN110628996A - Metal hot working production line and use method - Google Patents
Metal hot working production line and use method Download PDFInfo
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- CN110628996A CN110628996A CN201910875878.2A CN201910875878A CN110628996A CN 110628996 A CN110628996 A CN 110628996A CN 201910875878 A CN201910875878 A CN 201910875878A CN 110628996 A CN110628996 A CN 110628996A
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- hearth
- row
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- air
- furnace
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/34—Methods of heating
- C21D1/52—Methods of heating with flames
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/62—Quenching devices
- C21D1/63—Quenching devices for bath quenching
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0006—Details, accessories not peculiar to any of the following furnaces
- C21D9/0018—Details, accessories not peculiar to any of the following furnaces for charging, discharging or manipulation of charge
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0062—Heat-treating apparatus with a cooling or quenching zone
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0081—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for slabs; for billets
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Tunnel Furnaces (AREA)
Abstract
The invention discloses a metal hot working production line and a use method thereof.A hardware comprises two solid melting furnaces, a liftable bidirectional conveying platform and a quenching bath; each solid melting furnace comprises: the stove is provided with a hollow hearth, one end of the hearth is a feeding end, and the other end of the hearth is a discharging end; defining the direction from the feeding end to the discharging end as a first direction; the device is used for bearing a plurality of plate material carriers; the conveying device comprises a feeding conveying section positioned outside the furnace and a working conveying section positioned inside the furnace; the fire heating assemblies are positioned in the hearth and distributed along a first direction, and are used for heating the plates; the furnace is internally provided with a plurality of circulating air ducts arranged along a first direction, each circulating air duct is provided with an air inlet and an air return port, the air inlets are formed in the side wall of the hearth, and the air return ports are formed in the upper end of the hearth. The invention is used for avoiding the condition that the plate is not uniformly processed by heat due to the over-concentrated temperature field during heating, and can conveniently transfer the plate to the quenching bath.
Description
Technical Field
The invention relates to the field of metal plate hot processing, in particular to a metal hot processing production line and a using method thereof.
Background
After the metal plate, especially the aluminum alloy plate, is discharged from the melting furnace and cooled, various physical properties are often insufficient, and the metal plate cannot be directly output to be used as a section. Therefore, the sheet materials need to be subjected to hot working, so that the physical properties of the sheet materials can be improved, and the use condition can be met. However, at present, the production line of the subsequent hot working of the aluminum alloy sheet material has several disadvantages: 1. the traditional solid melting furnace has unreasonable structural arrangement, so that a metal plate subjected to hot working is heated unevenly, and local thermal stress is easily generated; 2. because the transfer link between the quenching bath and the hot processing device is not compact enough and the transport distance is too long, the plate to be quenched is placed in the air at normal temperature for too long time, the temperature is seriously reduced, and the quenching effect is greatly reduced when the plate is soaked in the quenching bath; 3. lack the operation method that becomes more meticulous to the operation of going out fire and circulated air in the furnace, lead to the volume of heat outwards loss great, extravagant surplus, the heat of effluvium still influences workshop temperature environment easily.
Disclosure of Invention
In order to overcome the defects of the prior art, one of the objectives of the present invention is to provide a solid melting furnace for avoiding the uneven heat processing of the plate due to the over-concentrated temperature field during heating; the second purpose is to provide a metal hot processing production line which is used for completing the hot processing of the plate and is conveniently transported to a quenching bath; the third purpose is to provide a using method of the metal hot processing production line.
Aiming at one of the purposes of the invention, the invention adopts the following technical scheme to realize:
a solid smelting furnace comprising: the stove is provided with a hollow hearth, one end of the hearth is a feeding end, and the other end of the hearth is a discharging end; defining the direction from the feeding end to the discharging end as a first direction;
the object carrier is used for carrying a plurality of plates;
the conveying device comprises a feeding conveying section positioned outside the furnace and a working conveying section positioned inside the furnace, and the working conveying section extends from the feeding end to the discharging end of the hearth; the length of the working conveying section is greater than that of the plate and greater than that of the carrier;
the fire heating assemblies are positioned in the hearth and distributed along a first direction, and are used for heating the plates;
a plurality of circulating air ducts arranged along a first direction are arranged in the stove, each circulating air duct is provided with an air inlet and an air return inlet, each air inlet is arranged on the side wall of the hearth, and each air return inlet is arranged at the upper end of the hearth;
and the waste gas discharge channel is used for discharging mixed waste gas generated by combustion in the hearth.
Further, firepower heating element includes a plurality of bocca that arrange along length direction, the bocca intercommunication outside oil gas mixture pipeline to, the bocca is equipped with some firearm.
Furthermore, an impeller unit is installed in the circulating air duct, and is used for keeping hot air in the hearth circulating, and the hot air enters the hearth through the air inlet and leaves the hearth through the air return inlet.
Furthermore, the feed end of the stove is provided with a first movable door capable of being opened and closed, and the discharge end of the stove is provided with a second movable door capable of being opened and closed.
Furthermore, the number of the circulating air ducts is three, and each circulating air duct is provided with two air inlets; defining all air inlets arranged along a first direction on the side wall of one hearth as a first row of air inlet combination, and defining all air inlets arranged along the first direction on the side wall of the other hearth as a second row of air inlet combination; the two air inlets of the circulating air duct close to the discharge end are defined as a first row of air inlet combination, the two air inlets of the circulating air duct close to the feed end are defined as a third row of air inlet combination, and the two air inlets of the circulating air duct positioned in the middle are defined as a second row of air inlet combination; the number of the fire-jet ports is six, three fire-jet ports are respectively arranged on one side wall of the hearth and defined as a first row of fire-jet port combination, and the other three fire-jet ports are respectively arranged on the other side wall of the hearth and defined as a second row of fire-jet port combination; and the two flame ports close to the discharge end are defined as a first row of flame port combinations, the two flame ports close to the feed end are defined as a third row of flame port combinations, and the two flame ports positioned in the middle part are defined as a second row of flame port combinations.
Further, the conveying device is a roller conveying device.
In order to achieve the second purpose of the invention, the invention adopts the following technical scheme to realize:
the metal hot working production line comprises two solid melting furnaces, two lifting bidirectional conveying platforms are arranged between the two solid melting furnaces, the lifting bidirectional conveying platforms are as high as conveying devices of the two solid melting furnaces, a quenching bath is arranged below the lifting bidirectional conveying platforms, and the quenching bath is used for quenching plates.
Further, the position of the liftable bidirectional conveying platform above the quenching bath and at the same height as the conveying device is defined as a first position, the position of the liftable bidirectional conveying platform at the bottom end of the quenching bath is defined as a second position, and the liftable bidirectional conveying platform has the freedom degree of movement between the first position and the second position.
Furthermore, the liftable bidirectional conveying platform comprises a roller conveying mechanism and a lifting mechanism.
In order to achieve the third object of the present invention, the present invention is implemented by the following technical solutions:
a use method of a metal hot working production line comprises the following steps:
a loading step, namely placing a loading frame loaded with plates on the loading conveying section, and then sending the loading frame into a hearth;
heating, namely heating the plate by a thermal heating assembly, starting the circulating air duct to form circulating air in the hearth, and driving the carrying frame carrying the plate to do linear reciprocating motion in a first direction by the working conveying section;
a heat preservation step, namely closing the thermal power heating assembly, and keeping the output power of the heating step by the circulating air duct;
a leaving step, wherein the output power is reduced by the circulating air duct, and then the object carrier loaded with the plate materials leaves the hearth and is driven to the first position by the liftable bidirectional conveying platform;
a quenching step, namely, the liftable bidirectional conveying platform descends to the quenching bath to reach the second position, and the plate is immersed in bath water in the quenching bath to complete a quenching process;
and a discharging step, namely, the liftable bidirectional conveying platform rises to return to the first position, and the object carrier carrying the plate materials is lifted away by external hoisting equipment.
The invention can achieve the following beneficial effects:
(1) the length of the hearth of the stove is increased compared with the prior art, and a space is provided, so that the object carrier can slowly reciprocate along the length direction, and thus, the uniform heating of the plates on the object carrier is facilitated; in addition, circulating air is formed in the hearth, so that uniform distribution of temperature fields near a material carrier and a plate in the hearth is facilitated, and the condition that heat is excessively concentrated at partial positions in the temperature fields is avoided;
(2) in addition, the transfer process from leaving the hearth to immersing the plate in the quenching bath is simpler than the prior art, and the required time is obviously reduced compared with the prior art; in addition, because the time required for the heating and heat preservation process is longer than the quenching time, the plate materials are heated by a left furnace and a right furnace, and then a quenching bath is arranged between the left furnace and the right furnace, so that the time difference executed successively at two sides can be properly utilized, and the plate materials at two sides can smoothly complete all the processes;
(3) the wind power of the circulating air duct is adjustable, when the plate is fed into the hearth, the hearth is closed and is heated by flame provided by the flame ejection port, the output wind rate of the impeller unit is the fastest gear, when the heating of the flame ejection port is closed and the heat is preserved, the output wind rate of the impeller unit is reduced to the middle gear, so that the electric energy loss can be reduced, when the plate leaves the hearth, the impeller unit is reduced to the lowest rotating speed, the residual temperature in the hearth is prevented from being greatly dissipated to a workshop at the discharge end, the residual temperature is reserved for another plate-carrying carrier to be heated for subsequent feeding, in other words, if the subsequent plate is to be heated in the hearth, the initial temperature in the hearth is higher than that of a cabinet when the plate is heated from the normal temperature, and the worthless loss of fuel is reduced.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the first hearth (a top view of the first hearth is hidden);
FIG. 3 is a schematic structural view of the first hearth (a right side view of the feeding end of the first hearth is hidden);
FIG. 4 is a cross-sectional view of FIG. 3A-A;
figure 5 is a cross-sectional view of figure 3A-a (with the carrier rack in a first position);
figure 6 is a cross-sectional view taken along line a-a of figure 3 (with the carrier rack in a second position);
FIG. 7 is a schematic view of the carrier frame as it is positioned above the quench bath;
FIG. 8 is a schematic view of the carrier rack submerged in a quench bath;
figure 9 is a schematic structural view (front view) of the carrier;
figure 10 is a schematic structural view (right side view) of the carrier;
in the figure, 1, a first stove; 10. a first row of air inlet combination; 100. a first air inlet; 101. a second air inlet; 102. a third air inlet; 11. the second row of air inlet assemblies; 110. a fourth air inlet; 111. a fifth air inlet; 112. a sixth air inlet; 12. a first row of air inlet assemblies; 13. a second row of air inlet assemblies; 14. a third row of air inlet combinations; 20. the first row of fire nozzles are combined; 200. a first flame port; 201. a second flame port; 202. a third flame port; 21. the second row of fire nozzles are combined; 210. a fourth flame port; 211. a fifth flame jet; 212. a sixth flame spray port; 22. the first row of fire nozzles are combined; 23. the second row of fire nozzles are combined; 24. the third row of fire nozzles are combined; 30. a first turbine unit; 31. a second turbine set; 32. a third impeller unit; 40. a first movable door; 41. a second movable door; 50. a conveying device; 60. a quenching bath; 61. a liftable bidirectional conveying platform; 62. a temporary carrier region; 70. a second oven; 80. a first carrier; 81. a second carrier.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the embodiments or technical features described below can be used to form a new embodiment without conflict.
The plate material of the invention specifically refers to an aluminum alloy plate material, and after the aluminum alloy plate material is discharged from a smelting furnace and cooled, the aluminum alloy plate material usually has various physical property defects and can not be directly output to be used as a section material. Therefore, the sheet material needs to be subjected to hot working, so that the effect of improving the physical properties of the sheet material can be achieved, and the use condition can be met.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "horizontal", "vertical", "top", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; either directly or indirectly through intervening media, or through both elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to fig. 1-10, the solid melting furnace according to the present invention includes, but is not limited to, a furnace, a carrier, a conveyor 50, a heating element, a circulating air duct, and an exhaust gas exhaust passage.
The stove is of a cuboid structure and is provided with a hollow hearth, one end of the hearth is a feeding end, and the other end of the hearth is a discharging end; the direction from the feeding end to the discharging end is defined as a first direction. In other words, the first direction may be considered as a longitudinal direction of the oven. As shown in fig. 9 and 10, the rack is used for carrying a plurality of slabs and is in an inverted T shape, and two sides of the rack are provided with positions for the slabs to be obliquely placed. The conveyor 50 comprises a feeding conveyor section located outside the furnace and a working conveyor section located inside the furnace, the working conveyor section extending from the feeding end to the discharging end of the hearth; the length of the working conveying section is greater than that of the plate and greater than that of the carrier; the purpose of the arrangement is to provide a space, so that the object carrier can slowly move back and forth along the first direction, and thus, the uniform heating of the plates on the object carrier is facilitated. The fire heating assemblies are located in the hearth and are distributed in a plurality of numbers, the fire heating assemblies are distributed along a first direction, and the fire heating assemblies are used for heating the plates. The circulating air ducts are arranged in the stove, the number of the circulating air ducts is a plurality of, the circulating air ducts are arranged along the first direction, each circulating air duct is provided with an air inlet and an air return opening, the air inlets are formed in the side wall of the hearth, and the air return openings are formed in the upper end of the hearth. The waste gas discharge channel is used for discharging mixed waste gas generated by combustion in the hearth.
As shown in fig. 2 and 3, specifically, as a preferred embodiment, the fire heating assembly includes a plurality of fire nozzles arranged along the length direction, the fire nozzles are communicated with an external air-fuel mixture pipeline, the external air-fuel mixture pipeline is communicated with an external air source and an external oil outlet valve, atomized fuel oil and air are mixed and then delivered to the fire nozzles through the air-fuel mixture pipeline, and each fire nozzle is provided with an igniter, which may be an existing electronic igniter.
Specifically, each circulating air duct is internally provided with an impeller unit, the impeller unit is used for keeping hot air in the hearth in a circulating mode, and the hot air enters the hearth from the air inlet and leaves the hearth from the air return inlet. In the present invention, the number of the circulatable air ducts may be three, in other words, there are three impeller units, i.e., the first impeller unit 30, the second impeller unit 31, and the third impeller unit 32 reflected in fig. 4.
Referring to fig. 4, in particular, the feed end of the oven is provided with a first movable door 40 which can be opened and closed, and the discharge end of the oven is provided with a second movable door 41 which can be opened and closed. The first movable door 40 and the second movable door 41 are each mounted with a power device that provides a driving force required for opening and closing operations.
As a preferred scheme, the number of the circulating air ducts may be three, each circulating air duct has two air inlets, that is, the first direction is taken as a reference direction, the air inlets are arranged at the side wall of the furnace in a 3 × 2 manner, referring to fig. 2, it can be seen that the first air inlet 100, the second air inlet 101, the third air inlet 102, the fourth air inlet 110, the fifth air inlet 111, and the sixth air inlet 112 are all arranged at the side wall of the furnace; defining all air inlets arranged along a first direction on the side wall of one hearth as a first row of air inlet combination 10, and defining all air inlets arranged along the first direction on the side wall of the other hearth as a second row of air inlet combination 11; the two air inlets of the circulating air duct near the discharge end are defined as a first row of air inlet combinations 12, the two air inlets of the circulating air duct near the feed end are defined as a third row of air inlet combinations 14, and the two air inlets of the circulating air duct in the middle are defined as a second row of air inlet combinations 13; the number of the fire nozzles is six, and referring to fig. 2, it can be seen that a first fire nozzle 200, a second fire nozzle 201, a third fire nozzle 202, a fourth fire nozzle 210, a fifth fire nozzle 211 and a sixth fire nozzle 212 are all arranged on the side wall of the hearth; three fire-jet combination groups are respectively arranged on one side wall of the hearth and are defined as a first row of fire-jet combination 20, and the other three fire-jet combination groups are respectively arranged on the other side wall of the hearth and are defined as a second row of fire-jet combination 21; the two ports near the discharge end are defined as a first row of port combinations 22, the two ports near the feed end are defined as a third row of port combinations 24, and the two ports in the middle are defined as a second row of port combinations 23.
Preferably, the conveying device 50 may be a roller conveying device, and the roller conveying device is provided with a rotation power by an external driving device, such as a motor.
Referring to fig. 1, a hot metal processing production line includes the solid melting furnaces, the number of the solid melting furnaces may be two, that is, a first furnace 1 and a second furnace 70, and the two solid melting furnaces are arranged opposite to each other, and further includes a liftable bidirectional conveying platform 61 located therebetween, a temporary object carrying area 62 for placing the object carrying rack is located in the middle of the liftable bidirectional conveying platform 61, the liftable bidirectional conveying platform 61 is equal to the conveying device 50 of the two solid melting furnaces in height, a quenching bath 60 is disposed below the liftable bidirectional conveying platform 61, and the quenching bath 60 is used for quenching a sheet material. Specifically, referring to fig. 7 and 8, a position of the liftable bidirectional conveying platform 61 above the quenching bath 60 and at the same height as the conveying device 50 may be defined as a first position, a position of the liftable bidirectional conveying platform 61 at the bottom end of the quenching bath 60 may be defined as a second position, and the liftable bidirectional conveying platform 61 has a degree of freedom of movement between the first position and the second position. Specifically, the liftable bidirectional conveying platform 61 comprises a roller conveying mechanism and a lifting mechanism. The design has the advantages that the transfer process from leaving the hearth to being immersed in the quenching bath 60 is simpler than before, and the required time is obviously reduced; in addition, because the heating and heat-preserving processes require longer time than the quenching time, the left and right furnaces are adopted to heat the plate materials, and a quenching bath 60 is arranged between the two furnaces, so that the time difference executed successively at the two sides can be properly utilized, and the plate materials at the two sides can smoothly complete all the processes;
the application method of the metal hot processing production line is applied to the metal hot processing production line and comprises the following steps:
s1: a feeding step, namely opening a first movable door 40, placing a loading frame loaded with plates on the feeding conveying section, then feeding the loading frame into a hearth, and closing the first movable door 40; it is waited for that both the first and second movable doors 40 and 41 are closed in the initial state before the execution of S1.
S2: heating, namely heating the plate by a thermal heating assembly, starting the circulating air duct to form circulating air in the hearth, and driving the carrying frame carrying the plate to do linear reciprocating motion in a first direction by the working conveying section;
s3: a heat preservation step, namely closing the thermal power heating assembly, and keeping the output power of the heating step by the circulating air duct;
s4: a leaving step, namely, the output power of the circulating air duct is reduced, then, the second movable door 41 is opened, the object carrier with the plate materials leaves the hearth and is driven to the first position by the liftable bidirectional conveying platform 61, and actually, when the whole object carrier with the plate materials completely leaves the stove, the second movable door 41 can be immediately closed;
aiming at S1, S2, S3 and S4, it is noted that the wind power of the circulating air duct is adjustable, after the plate is sent into the hearth, the hearth is closed and is heated by flame provided by a flame port, the output air quantity of the turbine set is the fastest gear, when the heating of the flame port is closed and the heat is preserved, the output air quantity of the turbine set is reduced to a middle gear, so that the electric energy loss can be reduced, and when the plate leaves the hearth, the turbine set is reduced to the lowest rotating speed, namely, the slowest gear; by the design, the adverse effect caused by the fact that the fan always keeps a fixed rotating speed in the conventional scheme is avoided. The rotating speed is reduced to the lowest, the residual temperature in the hearth can be greatly dissipated to a workshop at the discharge end, and the residual temperature is reserved for another plate carrying rack to be heated for subsequent feeding, namely, if the subsequent plates are heated in the hearth, the initial temperature in the hearth is higher than that of a cabinet when the subsequent plates are heated from the normal temperature, and the worthless loss of fuel is also reduced.
S5: a quenching step, namely, the liftable bidirectional conveying platform 61 descends to the quenching bath 60 to reach the second position, and the plate is immersed in bath water in the quenching bath 60 to complete a quenching process; referring to the loading conditions of the first and second racks 80 and 81 shown in fig. 1, the time difference between the loading on the two sides and the execution of the loading on the two sides can be properly utilized, and as long as the time difference is equal to the requirement of the secondary quenching process, the continuity of the operation can be embodied, so that the plates on the two sides can smoothly complete all the processes;
s6: and a discharging step, namely, the lifting bidirectional conveying platform 61 is lifted to return to the first position, and the object carrier carrying the plate materials is lifted away by external hoisting equipment.
In fact, before S5 is executed, the oven on the source side of the current rack can load a new slab to be processed, and the first movable door 40 is opened to allow the new slab to be processed to be loaded through the rack and enter the furnace.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.
Claims (10)
1. Solid state furnace, characterized in that includes:
the stove is provided with a hollow hearth, one end of the hearth is a feeding end, and the other end of the hearth is a discharging end; defining the direction from the feeding end to the discharging end as a first direction;
the object carrier is used for carrying a plurality of plates;
the conveying device comprises a feeding conveying section positioned outside the furnace and a working conveying section positioned inside the furnace, and the working conveying section extends from the feeding end to the discharging end of the hearth; the length of the working conveying section is greater than that of the plate and greater than that of the carrier;
the fire heating assemblies are positioned in the hearth and distributed along a first direction, and are used for heating the plates;
a plurality of circulating air ducts arranged along a first direction are arranged in the stove, each circulating air duct is provided with an air inlet and an air return inlet, each air inlet is arranged on the side wall of the hearth, and each air return inlet is arranged at the upper end of the hearth;
and the waste gas discharge channel is used for discharging mixed waste gas generated by combustion in the hearth.
2. The solid phase furnace of claim 1, wherein: the firepower heating assembly comprises a plurality of flame ports arranged along the length direction, the flame ports are communicated with an external oil-gas mixture pipeline, and an igniter is arranged on each flame port.
3. The solid phase furnace of claim 1, wherein: and an impeller unit is arranged in the circulating air duct, is used for keeping hot air in the hearth circulating, enters the hearth from the air inlet and leaves the hearth from the air return inlet.
4. The solid phase furnace of claim 1, wherein: the feed end of stove is equipped with open closed first dodge gate, the discharge end of stove is equipped with open closed second dodge gate.
5. The solid phase furnace of claim 2, wherein: the number of the circulating air ducts is three, and each circulating air duct is provided with two air inlets; defining all air inlets arranged along a first direction on the side wall of one hearth as a first row of air inlet combination, and defining all air inlets arranged along the first direction on the side wall of the other hearth as a second row of air inlet combination; the two air inlets of the circulating air duct close to the discharge end are defined as a first row of air inlet combination, the two air inlets of the circulating air duct close to the feed end are defined as a third row of air inlet combination, and the two air inlets of the circulating air duct positioned in the middle are defined as a second row of air inlet combination; the number of the fire-jet ports is six, three fire-jet ports are respectively arranged on one side wall of the hearth and defined as a first row of fire-jet port combination, and the other three fire-jet ports are respectively arranged on the other side wall of the hearth and defined as a second row of fire-jet port combination; and the two flame ports close to the discharge end are defined as a first row of flame port combinations, the two flame ports close to the feed end are defined as a third row of flame port combinations, and the two flame ports positioned in the middle part are defined as a second row of flame port combinations.
6. The solid phase furnace of claim 1, wherein: the conveying device is a roller conveying device.
7. A hot metal processing production line is characterized by comprising two solid melting furnaces according to any one of claims 1 to 6, wherein the two solid melting furnaces are arranged oppositely, and a liftable bidirectional conveying platform is arranged between the two solid melting furnaces, the liftable bidirectional conveying platform is as high as conveying devices of the two solid melting furnaces, a quenching bath is arranged below the liftable bidirectional conveying platform, and the quenching bath is used for quenching plates.
8. The hot metal processing line of claim 7, wherein: the method comprises the steps of defining the position of a liftable bidirectional conveying platform above a quenching bath and at the same height as a conveying device as a first position, defining the position of the liftable bidirectional conveying platform at the bottom end of the quenching bath as a second position, and enabling the liftable bidirectional conveying platform to have the freedom degree of movement between the first position and the second position.
9. The hot metal processing line of claim 7, wherein: the liftable bidirectional conveying platform comprises a roller conveying mechanism and a lifting mechanism.
10. A method for using a hot metal working line, applied to the hot metal working line of claim 8, comprising the steps of:
a loading step, namely placing a loading frame loaded with plates on the loading conveying section, and then sending the loading frame into a hearth;
heating, namely heating the plate by a thermal heating assembly, starting the circulating air duct to form circulating air in the hearth, and driving the carrying frame carrying the plate to do linear reciprocating motion in a first direction by the working conveying section;
a heat preservation step, namely closing the thermal power heating assembly, and keeping the output power of the heating step by the circulating air duct;
a leaving step, wherein the output power is reduced by the circulating air duct, and then the object carrier loaded with the plate materials leaves the hearth and is driven to the first position by the liftable bidirectional conveying platform;
a quenching step, namely, the liftable bidirectional conveying platform descends to the quenching bath to reach the second position, and the plate is immersed in bath water in the quenching bath to complete a quenching process;
and a discharging step, namely, the liftable bidirectional conveying platform rises to return to the first position, and the object carrier carrying the plate materials is lifted away by external hoisting equipment.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114672635A (en) * | 2022-03-03 | 2022-06-28 | 重庆景裕电子科技有限公司 | Heat treatment production line for notebook computer shell |
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