CN111778386A - Aging furnace for producing die steel - Google Patents
Aging furnace for producing die steel Download PDFInfo
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- CN111778386A CN111778386A CN202010721216.2A CN202010721216A CN111778386A CN 111778386 A CN111778386 A CN 111778386A CN 202010721216 A CN202010721216 A CN 202010721216A CN 111778386 A CN111778386 A CN 111778386A
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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
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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
- C21D6/00—Heat treatment of ferrous alloys
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Abstract
The invention discloses an aging furnace for producing die steel, which belongs to the technical field of die steel production equipment, and is provided with a furnace bottom lifting mechanism, so that a furnace bottom can be separated from an inner furnace wall and an outer furnace wall, personnel can conveniently clean waste residues on the furnace bottom, a ventilating support limiting plate can heat circulating gas, radiating fins can quickly reduce the furnace temperature to a specified temperature, the aging treatment efficiency is improved, a workpiece placing frame is arranged to facilitate the placement of workpieces, the problem that airflow circulation is not smooth due to the stacking of the workpieces is avoided, a furnace body is spherical and is uniformly heated, a sodium chloride solution is arranged to uniformly heat the inner furnace wall, the temperature is conveniently and accurately controlled, the aging treatment efficiency and the quality of the workpieces in the furnace body are greatly improved, a heat recovery pipeline is arranged to recover the temperature after combustion, resources are greatly saved, and the energy consumption is reduced, and the resource utilization rate is improved.
Description
Technical Field
The invention belongs to the technical field of die steel production equipment; in particular to an aging furnace for producing die steel.
Background
The aging furnace is a furnace for aging a steel workpiece after solid solution, and the aging treatment refers to a heat treatment process for the alloy workpiece to be subjected to solid solution treatment, cold plastic deformation or casting, and after forging, the alloy workpiece is placed at a higher temperature or kept at room temperature to keep the performance, shape and size of the alloy workpiece changed along with time. Most of the existing aging furnaces are rectangular or cylindrical, and are heated through the bottom or hot air, so that the workpieces in the aging furnaces are heated unevenly, the quality of workpiece aging treatment is poor or the efficiency of the workpiece aging treatment is low, the quality of the finished workpieces is poor, the temperature of the existing aging furnaces is reduced slowly in the process from high temperature to low temperature, the efficiency of the aging treatment of the aging furnaces is greatly reduced, the temperature control accuracy is low due to the uneven temperature heating of the existing aging furnaces, the efficiency of the aging treatment is poor, the air flow circulation in the furnaces is poor due to the stacking of the workpieces in the existing aging furnaces, the aging treatment effect and the quality are affected, high-temperature gas generated by the existing aging furnaces is directly discharged, a large amount of energy is consumed, most of the existing aging furnaces are of integral structures, and waste residues often fall into the bottoms of the existing aging furnaces, due to the integral structure, bottom waste slag is difficult to clean, so that the aging oven for producing the die steel can effectively recover energy generated by high-temperature gas, is uniform in heating, prevents the airflow of stacked workpieces from circulating smoothly, and is easy to clean the waste slag.
Disclosure of Invention
The invention aims to provide an aging furnace for producing die steel.
In order to achieve the purpose, the invention provides the following technical scheme: an aging furnace for producing die steel comprises an air inlet net, a combustion base, a base sealing cover, workpiece placing frames, a circulating fan, an exhaust pipeline, a gas filtering device, a heat dissipation sealing cover, a heat recovery pipeline, a furnace body, an air blowing mechanism and a furnace bottom lifting mechanism, wherein the combustion base is arranged at the lower side of the furnace body, the furnace body is fixedly connected with the combustion base, the base sealing cover is rotationally fixed on the side wall of the combustion base, the air blowing mechanism is embedded in one side of the combustion base and communicated with the inner side of the combustion base, the air inlet net is fixed between the air blowing mechanism and the inner side of the combustion base, the exhaust pipeline is fixed at the tail end of the combustion base and communicated with the inner side of the combustion base, the furnace bottom lifting mechanism is embedded in the inner side of the combustion base, the upper end of the furnace bottom lifting mechanism is fixedly connected with the lower end of, the heat dissipation sealing covers are arranged on the rear side face of the furnace body in a sliding mode, the circulating fan is fixed on the upper side face of the furnace body and is in through connection with the inner side of the furnace body, the heat recovery pipeline is fixed on the inner side of the exhaust pipeline, the tail end of the heat recovery pipeline penetrates through the exhaust pipeline and is in through connection with the lower end of the furnace body, the head end of the heat recovery pipeline penetrates through the exhaust pipeline and is in through connection with the circulating fan, and the gas filtering device is fixed at the upper end of the exhaust pipeline and is fixedly connected with the upper end;
the air inlet net is made of a plurality of steel bars through welding, the air blowing mechanism adopts the prior art, namely an air blower, and a temperature indicator is arranged on the outer side wall of the furnace body.
Further, the combustion base comprises a combustion base body, a furnace bottom lifting mechanism mounting groove, a combustion base smoke outlet, an upper through groove, a blast mechanism mounting groove and a lower ventilation groove, the combustion base body is a solid rectangle, the upper end of the combustion base body is provided with a furnace body, the furnace body is fixedly connected with the upper end edge of the combustion base body, the upper half part of the inner side of the combustion base body is provided with a groove communicated with the upper end surface of the combustion base body, the tail end of the combustion base body is fixedly provided with the combustion base smoke outlet, the combustion base smoke outlet is communicated with the inner groove of the combustion base body, the lower half part of the inner side of the combustion base body is provided with the lower ventilation groove, the lower ventilation groove is communicated with the upper half part of the inner side of the combustion base body through the upper through groove, an air inlet net is fixed on the upper through groove, and the outer side, the stove bottom elevating system mounting groove is located logical groove left and right sides on, and embedded on burning base body, burning base body one side is located to blast air mechanism mounting groove, and blast air mechanism mounting groove and lower ventilation groove through connection, the sealed lid of base is embedded on burning base body, and the sealed lid of base passes through the hinge and is connected with burning base body rotation.
Further, the work piece rack includes arc shell, spacing, through-hole and rack, the arc shell is the circular arc type, and the arc shell is embedded on the furnace body lateral wall, the rack is equipped with a plurality ofly altogether the rack is evenly fixed in on the arc shell inside wall, the rack both sides all are fixed with spacing, and the rack passes through spacing and furnace body sliding fit, evenly be equipped with the through-hole on the spacing up end, the through-hole runs through terminal surface about the spacing.
Further, circulating fan includes rotating vane seat, rotating fan blade, air-supply line, circulating fan upper cover, circulating fan motor and circulating fan casing, the circulating fan casing is the hollow cylinder casing of no top bottomless, the circulating fan casing is fixed in the furnace body upper end, and the inboard through connection with the furnace body of circulating fan casing, the circulating fan upper cover is fixed in circulating fan casing upper end, and circulating fan motor output shaft downward embedded in circulating fan upper cover, circulating fan motor output shaft and rotating vane seat fixed connection, evenly be fixed with rotating fan blade on the rotating vane seat lateral wall, on the lateral wall of circulating fan casing is fixed to the air-supply line, and the air-supply line is connected with the inboard through connection of circulating fan casing.
Further, gas filtering device includes gas filtering device casing, active carbon filter core and anti-skidding line, the gas filtering device casing is the hollow rectangle casing of no top bottomless, active carbon filter core is fixed in the inboard first half of gas filtering device casing, be equipped with anti-skidding line on the inboard latter half lateral wall of gas filtering device casing, the gas filtering device casing passes through anti-skidding line cover on the exhaust duct up end.
Further, the heat dissipation sealing cover comprises a telescopic cylinder, a connecting rod, a sealing cover and a sealing cover mounting seat, the sealing cover mounting seat is fixed on the rear side face of the furnace body, the telescopic cylinder is fixed on the upper end face of the sealing cover mounting seat, the upper end of the telescopic cylinder is fixedly connected with the upper end of the connecting rod, the lower end of the connecting rod is fixed on the upper end face of the sealing cover, the sealing cover covers the outer side of the sealing cover mounting seat, and the sealing cover is in vertical sliding fit with the sealing cover mounting seat.
Further, the heat recovery pipeline includes steam output pipeline, snakelike heat exchange pipeline and steam input pipeline, snakelike heat exchange pipeline is fixed in the exhaust duct inboard, and snakelike heat exchange pipeline head end link up fixed connection with steam output pipeline head end, steam output pipeline end link up fixed connection with the air-supply line, snakelike heat exchange pipeline end link up fixed connection with steam input pipeline head end, steam input pipeline end and furnace body fixed connection, and steam input pipeline link up with the furnace body inboard mutually.
Further, the furnace body comprises a ventilation support limiting plate, radiating fins, an outer furnace wall, an inner furnace wall, a furnace bottom and heat conducting pipes, wherein the outer furnace wall and the inner furnace wall are hollow spheres without tops and bottoms, the inner and outer side walls of the outer furnace wall and the inner and outer side walls of the inner furnace wall are coated with high-temperature-resistant anti-corrosion coatings, the inner furnace wall is arranged on the inner side of the outer furnace wall, the upper and lower ends of the inner furnace wall are fixedly connected with the upper and lower ends of the outer furnace wall, the heat conducting pipes are arranged in a plurality, the heat conducting pipes are uniformly fixed between the outer side wall of the inner furnace wall and the inner side wall of the outer furnace wall, the upper ends of the heat conducting pipes are converged on the upper sides of the inner furnace wall and the outer furnace wall, the radiation fins are fixedly arranged on the rear side of the outer furnace wall, the, and a sodium chloride solution is filled between the outer furnace wall and the inner furnace wall, and the heat dissipation fins cover the sealing covers.
Further, stove bottom elevating system includes stove bottom support frame and pneumatic telescoping rod, pneumatic telescoping rod is embedded on burning base body up end, stove bottom support frame is equipped with two altogether stove bottom support frame symmetry is fixed in on the lower terminal surface of stove, two the both ends downside of stove bottom support frame all with pneumatic telescoping rod upper end fixed connection.
Further, the working steps of the aging furnace for producing the die steel are as follows:
1) pulling the base sealing cover to separate the base sealing cover from the combustion base, then placing the combusted coal and the like on an air inlet net in the combustion base body, starting a blast mechanism, and blowing air into the device from the outer side of the device to the inner side of the device by the blast mechanism to increase the combustion intensity of the coal;
2) the coal heats the outer furnace wall, so that the sodium chloride solution and the heat conducting pipe on the inner side of the outer furnace wall are heated, and the inner furnace wall is uniformly heated;
3) when the temperature inside the inner furnace wall reaches the designated temperature, the workpiece placing frame is pulled out of the furnace body, the workpiece is placed on the workpiece placing frame, and then the workpiece placing frame is pushed into the furnace body;
4) the hot gas generated by coal combustion enters the exhaust pipeline through the combustion base smoke outlet, and then heats the heat recovery pipeline in the exhaust pipeline, and the gas is discharged after being filtered by the gas filtering device
5) Starting a circulating fan motor, rotating the circulating fan motor to drive a rotating blade seat and a rotating blade to rotate, so that gas is blown into the lower end of the inner side of the furnace body from the upper end of the inner side of the furnace body, the gas is heated through a heat conduction pipe, and the heated gas uniformly heats a workpiece;
6) gas with reduced temperature enters the snakelike heat exchange pipeline from a hot gas input pipeline at the lower end of the furnace body after the workpiece is heated, the gas in the snakelike heat exchange pipeline is heated by hot gas in the exhaust pipeline, the heated gas enters the air inlet pipe through the hot gas output pipeline and enters the shell of the circulating fan through the air inlet pipe, and then the heated gas is blown into the lower end of the inner side of the furnace body from the upper end of the inner side of the furnace body again;
7) when the furnace body needs to be cooled, the telescopic cylinder is started, extends to push the sealing cover to move upwards, so that the radiating fins are exposed outside, and the furnace body is cooled;
8) after the workpiece is aged, the workpiece placing frame is pulled out of the furnace body, the workpiece is taken out of the workpiece placing frame, then the workpiece placing frame is pushed into the furnace body, and simultaneously waste residues fall onto the furnace bottom;
9) and closing the equipment, starting the air pressure telescopic rod to contract, moving the furnace bottom supporting frame downwards, moving the furnace bottom downwards, exposing waste residues on the furnace bottom, and cleaning the waste residues on the furnace bottom.
Compared with the prior art, the invention has the beneficial effects that: the invention is provided with the furnace bottom lifting mechanism and the furnace bottom, so that the furnace bottom can be separated from the inner furnace wall and the outer furnace wall, and further the working personnel can clean the waste residues on the furnace bottom conveniently, the temperature between the inner furnace wall and the outer furnace wall can be effectively recovered by the ventilation supporting limiting plate, and further the circulating gas can be heated, so that the workpiece can be heated, the temperature of the outer furnace wall and the temperature of the inner furnace wall can be rapidly reduced by the provided radiating fins, the furnace temperature can be rapidly reduced to the designated temperature, and further the efficiency of aging treatment can be greatly improved, the workpiece placing frame can be used for conveniently and orderly placing the workpiece, the problem that the airflow circulation is not smooth due to stacking of the workpiece can be avoided, the gas circulation capability in the furnace body can be greatly improved by the provided through holes, the furnace body is spherical, the heating is uniform, the inner furnace wall, meanwhile, the efficiency and the quality of the aging treatment of the workpieces in the furnace body are greatly improved, the heat recovery pipeline is arranged, so that airflow in the furnace body is circulated, the workpieces are uniformly heated, the temperature after combustion is effectively recovered, the resources are greatly saved, the energy consumption is reduced, the resource utilization rate is improved, and the novel furnace has the beneficial effects of effectively recovering energy generated by high-temperature gas, uniformly heating, preventing the airflow stacked workpieces from smoothly circulating, easily cleaning waste residues and the like.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of the overall structure of an aging furnace for producing die steel according to the invention;
FIG. 2 is a schematic structural diagram of a combustion base of an aging furnace for producing die steel, provided by the invention;
FIG. 3 is a schematic structural diagram of a workpiece placing frame of an aging furnace for producing die steel, provided by the invention;
FIG. 4 is a schematic structural diagram of a circulating fan of an aging furnace for producing die steel, which is disclosed by the invention;
FIG. 5 is a schematic structural view of a gas filtering device of an aging furnace for producing die steel according to the present invention;
FIG. 6 is a schematic structural diagram of a heat dissipation sealing cover of an aging oven for producing die steel according to the invention;
FIG. 7 is a schematic structural view of a heat recovery pipe of an aging oven for producing die steel according to the present invention;
FIG. 8 is a schematic structural diagram of a furnace body of an aging furnace for producing die steel according to the invention;
FIG. 9 is a schematic structural view of a furnace bottom lifting mechanism of an aging furnace for producing die steel.
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, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-9, the present invention provides a technical solution: an aging furnace for producing die steel comprises an air inlet net 1, a combustion base 2, a base sealing cover 3, a workpiece placing rack 4, a circulating fan 5, an exhaust pipeline 6, a gas filtering device 7, a heat dissipation sealing cover 8, a heat recovery pipeline 9, a furnace body 10, a blast mechanism 11 and a furnace bottom lifting mechanism 12, wherein the combustion base 2 is arranged at the lower side of the furnace body 10, the furnace body 10 is fixedly connected with the combustion base 2, the base sealing cover 3 is rotationally fixed on the side wall of the combustion base 2, the blast mechanism 11 is embedded at one side of the combustion base 2, the blast mechanism 11 is communicated with the inner side of the combustion base 2, the air inlet net 1 is fixed between the blast mechanism 11 and the inner side of the combustion base 2, the exhaust pipeline 6 is fixed at the tail end of the combustion base 2, the exhaust pipeline 6 is communicated with the inner side of the combustion base 2, the furnace bottom lifting mechanism 12 is embedded at the inner side of, it has a plurality of work piece rack 4 to embed on the 10 leading flank of furnace body, a plurality of work piece rack 4 all with 10 sliding fit of furnace body, the sealed lid 8 that dispels the heat slides and locates the 10 trailing flank of furnace body, circulating fan 5 is fixed in on the 10 side of furnace body, and circulating fan 5 and the inboard through connection of furnace body 10, heat recovery pipeline 9 is fixed in 6 inboards of exhaust duct, 9 ends of heat recovery pipeline pierce through exhaust duct 6 and the 10 lower extreme through connection of furnace body, and 9 head ends of heat recovery pipeline pierce through exhaust duct 6 and circulating fan 5 through connection, gas filtering device 7 is fixed in 6 upper ends fixed connection of exhaust duct.
The air inlet net 1 is made of a plurality of steel bars through welding, the air blowing mechanism 11 is in the prior art, namely an air blower, and a temperature indicator is arranged on the outer side wall of the furnace body 10.
As shown in FIG. 2, the combustion base 2 comprises a combustion base body 21, a furnace bottom lifting mechanism installation groove 22, a combustion base smoke outlet 23, an upper through groove 24, a blowing mechanism installation groove 25 and a lower ventilation groove 26, the combustion base body 21 is a solid rectangle, the upper end of the combustion base body 21 is provided with a furnace body 10, the furnace body 10 is fixedly connected with the upper end edge of the combustion base body 21, the upper half part of the inner side of the combustion base body 21 is provided with a groove communicated with the upper end surface of the combustion base body 21, the tail end of the combustion base body 21 is fixedly provided with the combustion base smoke outlet 23, the combustion base smoke outlet 23 is communicated with the groove in the combustion base body 21, the lower half part of the inner side of the combustion base body 21 is provided with the lower ventilation groove 26, the lower ventilation groove 26 is communicated with the groove in the upper half part of the inner side of the combustion base body 21 through the upper through groove 24, the upper through, stove bottom elevating system mounting groove 22 locates the logical groove 24 left and right sides on, and embedded on burning base body 21, and burning base body 21 one side is located to blast air mechanism mounting groove 25, and blast air mechanism mounting groove 25 and lower ventilation groove 26 through connections, and the sealed lid of base 3 is embedded on burning base body 21, and the sealed lid of base 3 rotates with burning base body 21 through the hinge and is connected.
As shown in fig. 3, the workpiece placing frame 4 includes an arc-shaped housing 41, a limiting strip 42, through holes 43 and placing frames 44, the arc-shaped housing 41 is of an arc shape, and the arc-shaped housing 41 is embedded on the outer side wall of the furnace body 10, the placing frames 44 are provided with a plurality of placing frames 44, the placing frames 44 are uniformly fixed on the inner side wall of the arc-shaped housing 41, the two sides of the placing frames 44 are all fixed with the limiting strip 42, the placing frames 44 are in sliding fit with the furnace body 10 through the limiting strip 42, the through holes 43 are uniformly formed in the upper end face of the limiting strip 42, and the.
As shown in fig. 4, the circulating fan 5 includes a rotary blade seat 51, a rotary blade 52, an air inlet pipe 53, a circulating fan upper cover 54, a circulating fan motor 55 and a circulating fan housing 56, the circulating fan housing 56 is a hollow cylindrical housing without a top and a bottom, the circulating fan housing 56 is fixed at the upper end of the furnace body 10, the inner side of the circulating fan housing 56 is connected with the inner side of the furnace body 10 in a penetrating manner, the circulating fan upper cover 54 is fixed at the upper end of the circulating fan housing 56, the output shaft of the circulating fan motor 55 is embedded into the circulating fan upper cover 54 downwards, the output shaft of the circulating fan motor 55 is fixedly connected with the rotary blade seat 51, the rotary blade 52 is uniformly fixed on the outer side wall of the rotary blade seat 51, the air inlet pipe 53 is fixed on the outer side wall of the circulating fan housing 56, and the air inlet.
As shown in fig. 5, the gas filtering device 7 includes a gas filtering device casing 71, an activated carbon filter core 72 and anti-slip threads 73, the gas filtering device casing 71 is a hollow rectangular casing without top and bottom, the activated carbon filter core 72 is fixed on the upper half portion of the inner side of the gas filtering device casing 71, the anti-slip threads 73 are arranged on the sidewall of the lower half portion of the inner side of the gas filtering device casing 71, and the gas filtering device casing 71 is sleeved on the upper end surface of the exhaust duct 6 through the anti-slip threads 73.
As shown in fig. 6, the heat dissipation sealing cover 8 includes a telescopic cylinder 81, a connecting rod 82, a sealing cover 83 and a sealing cover mounting seat 84, the sealing cover mounting seat 84 is fixed on the rear side surface of the furnace body 10, the telescopic cylinder 81 is fixed on the upper end surface of the sealing cover mounting seat 84, the upper end of the telescopic cylinder 81 is fixedly connected with the upper end of the connecting rod 82, the lower end of the connecting rod 82 is fixed on the upper end surface of the sealing cover 83, the sealing cover 83 covers the outer side of the sealing cover mounting seat 84, and the sealing cover 83 is in up-and.
As shown in fig. 7, the heat recovery pipeline 9 includes a hot gas output pipeline 91, a serpentine heat exchange pipeline 92 and a hot gas input pipeline 93, the serpentine heat exchange pipeline 92 is fixed inside the exhaust pipeline 6, and the head end of the serpentine heat exchange pipeline 92 and the head end of the hot gas output pipeline 91 are communicated and fixed, the tail end of the hot gas output pipeline 91 is communicated and fixed with the air inlet pipe 53, the tail end of the serpentine heat exchange pipeline 92 is communicated and fixed with the head end of the hot gas input pipeline 93, the tail end of the hot gas input pipeline 93 is fixedly connected with the furnace body 10, and the hot gas input pipeline 93 is communicated with the inside.
As shown in fig. 8, the furnace body 10 includes an air-permeable supporting limit plate 101, heat dissipating fins 102, an outer furnace wall 103, an inner furnace wall 104, a furnace bottom 105 and heat conducting pipes 106, wherein the outer furnace wall 103 and the inner furnace wall 104 are both hollow spheres without tops and bottoms, the inner and outer sidewalls of the outer furnace wall 103 and the inner and outer sidewalls of the inner furnace wall 104 are both coated with high temperature and corrosion resistant coatings, the inner furnace wall 104 is disposed inside the outer furnace wall 103, the upper and lower ends of the inner furnace wall 104 are fixedly connected with the upper and lower ends of the outer furnace wall 103, the heat conducting pipes 106 are provided in plurality, the heat conducting pipes 106 are uniformly fixed between the outer sidewall of the inner furnace wall 104 and the inner sidewall of the outer furnace wall 103, the upper ends of the heat conducting pipes 106 converge on the upper sides of the inner and outer furnace walls 104 and 103, the heat dissipating fins 102 are fixed on the rear side of the, the furnace bottom 105 is provided below the outer furnace wall 103 and the inner furnace wall 104, a sodium chloride solution is filled between the outer furnace wall 103 and the inner furnace wall 104, and the heat radiation fins 102 are covered in the sealing lid 83.
As shown in fig. 9, the furnace bottom lifting mechanism 12 includes furnace bottom supporting frames 121 and air pressure telescopic rods 122, the air pressure telescopic rods 122 are embedded on the upper end surface of the combustion base body 21, the number of the furnace bottom supporting frames 121 is two, the two furnace bottom supporting frames 121 are symmetrically fixed on the lower end surface of the furnace bottom 105, and the lower sides of the two ends of the two furnace bottom supporting frames 121 are fixedly connected with the upper ends of the air pressure telescopic rods 122.
The working steps of the aging furnace for producing the die steel are as follows:
1) pulling the base sealing cover 3 to separate the base sealing cover 3 from the combustion base 2, then placing the combusted coal and the like on the air inlet net 1 in the combustion base body 21, starting the air blowing mechanism 11, and blowing air into the device from the outer side of the device to the inner side of the device by the air blowing mechanism 11 to increase the combustion intensity of the coal;
2) the coal heats the outer furnace wall 103, so that the sodium chloride solution and the heat conduction pipe 106 inside the outer furnace wall 103 are heated, and the inner furnace wall 104 is uniformly heated;
3) when the temperature inside the inner furnace wall 104 reaches the designated temperature, the workpiece placing rack 4 is drawn out from the furnace body 10, the workpiece is placed on the workpiece placing rack 4, and then the workpiece placing rack 4 is pushed into the furnace body 10;
4) the hot gas generated by coal combustion enters the exhaust pipeline 6 through the combustion base smoke outlet 23, and further heats the heat recovery pipeline 9 in the exhaust pipeline 6, and then the gas is discharged after being filtered by the gas filtering device 7
5) Starting a circulating fan motor 55, wherein the circulating fan motor 55 rotates to drive a rotating blade seat 51 and a rotating blade 52 to rotate, so that gas is blown into the lower end of the inner side of the furnace body 10 from the upper end of the inner side of the furnace body 10, the gas is heated through a heat conduction pipe 106, and the heated gas uniformly heats a workpiece;
6) the gas with reduced temperature after the workpiece is heated enters the serpentine heat exchange pipeline 92 from the hot gas input pipeline 93 at the lower end of the furnace body 10, the gas in the serpentine heat exchange pipeline 92 is heated by the hot gas in the exhaust pipeline 6, the reheated gas enters the air inlet pipe 53 through the hot gas output pipeline 91 and enters the circulating fan shell 56 through the air inlet pipe 53, and then the reheated gas is blown into the lower end of the inner side of the furnace body 10 from the upper end of the inner side of the furnace body 10 again;
7) when the furnace body 10 needs to be cooled, the telescopic cylinder 81 is started, the telescopic cylinder 81 extends to push the sealing cover 83 to move upwards, so that the radiating fins 102 are exposed outside, and the furnace body 10 is cooled;
8) after the workpiece aging is completed, the workpiece placing frame 4 is pulled out from the furnace body 10, the workpiece is taken out from the workpiece placing frame 4, then the workpiece placing frame 4 is pushed into the furnace body 10, and simultaneously the waste residues fall onto the furnace bottom 105;
9) and (3) closing the equipment, starting the air pressure telescopic rod 122, contracting the air pressure telescopic rod 122, moving the furnace bottom supporting frame 121 downwards, moving the furnace bottom 105 downwards, exposing the waste residues on the furnace bottom 105, and cleaning the waste residues on the furnace bottom 105.
The foregoing is merely exemplary and illustrative of the present invention and various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the scope of the invention as defined in the following claims.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (10)
1. The aging furnace for producing the die steel comprises an air inlet net (1), a combustion base (2), a base sealing cover (3), a workpiece placing rack (4), a circulating fan (5), an exhaust pipeline (6), a gas filtering device (7), a heat dissipation sealing cover (8), a heat recovery pipeline (9), a furnace body (10), an air blowing mechanism (11) and a furnace bottom lifting mechanism (12), and is characterized in that the combustion base (2) is arranged at the lower side of the furnace body (10), the furnace body (10) is fixedly connected with the combustion base (2), the base sealing cover (3) is rotationally fixed on the side wall of the combustion base (2), the air blowing mechanism (11) is embedded in one side of the combustion base (2), the air blowing mechanism (11) is communicated with the inner side of the combustion base (2), and the air inlet net (1) is fixed between the air blowing mechanism (11) and the inner side of the combustion base (2), the exhaust pipeline (6) is fixed at the tail end of the combustion base (2), the exhaust pipeline (6) is communicated with the inner side of the combustion base (2), the furnace bottom lifting mechanism (12) is embedded in the inner side of the combustion base (2), the upper end of the furnace bottom lifting mechanism (12) is fixedly connected with the lower end of the furnace body (10), a plurality of workpiece placing frames (4) are embedded in the front side surface of the furnace body (10), the workpiece placing frames (4) are in sliding fit with the furnace body (10), the heat dissipation sealing cover (8) is arranged on the rear side surface of the furnace body (10) in a sliding mode, the circulating fan (5) is fixed on the upper side surface of the furnace body (10), the circulating fan (5) is communicated with the inner side of the furnace body (10), the heat recovery pipeline (9) is fixed on the inner side of the exhaust pipeline (6), and the tail end of the heat recovery pipeline (9) penetrates through the exhaust pipeline (6, the head end of the heat recovery pipeline (9) penetrates through the exhaust pipeline (6) to be communicated with the circulating fan (5), and the gas filtering device (7) is fixed at the upper end of the exhaust pipeline (6) and is fixedly connected with the exhaust pipeline;
the air inlet net (1) is formed by welding a plurality of steel bars.
2. The aging furnace for producing the die steel according to claim 1, wherein the combustion base (2) comprises a combustion base body (21), a furnace bottom lifting mechanism installation groove (22), a combustion base smoke outlet (23), an upper through groove (24), a blower mechanism installation groove (25) and a lower ventilation groove (26), the combustion base body (21) is a solid rectangle, a furnace body (10) is arranged at the upper end of the combustion base body (21), the furnace body (10) is fixedly connected with the upper end edge of the combustion base body (21), a groove communicated with the upper end face of the combustion base body (21) is arranged at the upper half part of the inner side of the combustion base body (21), the combustion base smoke outlet (23) is fixed at the tail end of the combustion base body (21), the combustion base smoke outlet (23) is communicated with the groove inside the combustion base body (21), the lower half part of the inner side of the combustion base body (21) is provided with a lower ventilating groove (26), the lower ventilating groove (26) is communicated with the groove of the upper half part of the inner side of the combustion base body (21) through the upper through groove (24), an air inlet net (1) is fixed on the upper through groove (24), the outer side wall of the air inlet net (1) is tightly contacted with the inner side wall of the upper through groove (24), the furnace bottom lifting mechanism mounting grooves (22) are arranged at the left side and the right side of the upper through groove (24), and is embedded on the combustion base body (21), the blast mechanism mounting groove (25) is arranged on one side of the combustion base body (21), the blast mechanism mounting groove (25) is communicated with the lower ventilation groove (26), the base sealing cover (3) is embedded on the combustion base body (21), and the base sealing cover (3) is rotatably connected with the combustion base body (21) through a hinge.
3. The aging furnace for producing die steel according to claim 1, wherein the workpiece placing frame (4) comprises an arc-shaped shell (41), a limiting strip (42), through holes (43) and placing frames (44), the arc-shaped shell (41) is of an arc shape, the arc-shaped shell (41) is embedded in the outer side wall of the furnace body (10), the placing frames (44) are arranged in a plurality, the placing frames (44) are uniformly fixed on the inner side wall of the arc-shaped shell (41), the limiting strips (42) are fixed on two sides of the placing frames (44), the placing frames (44) are in sliding fit with the furnace body (10) through the limiting strips (42), the through holes (43) are uniformly formed in the upper end face of the limiting strips (42), and the through holes (43) penetrate through the upper end face and the lower end face of the limiting strips (42).
4. The aging furnace for producing die steel according to claim 1, wherein the circulating fan (5) comprises a rotating blade seat (51), rotating blades (52), an air inlet pipe (53), a circulating fan upper cover (54), a circulating fan motor (55) and a circulating fan shell (56), the circulating fan shell (56) is a hollow cylindrical shell without a top and a bottom, the circulating fan shell (56) is fixed at the upper end of the furnace body (10), the inner side of the circulating fan shell (56) is communicated with the inner side of the furnace body (10), the circulating fan upper cover (54) is fixed at the upper end of the circulating fan shell (56), the output shaft of the circulating fan motor (55) is embedded into the circulating fan upper cover (54) downwards, the output shaft of the circulating fan motor (55) is fixedly connected with the rotating blade seat (51), and the rotating blades (52) are uniformly fixed on the outer side wall of the rotating blade seat (51), the air inlet pipe (53) is fixed on the outer side wall of the circulating fan shell (56), and the air inlet pipe (53) is communicated with the inner side of the circulating fan shell (56).
5. The aging oven for producing die steel according to claim 1, wherein the gas filtering device (7) comprises a gas filtering device shell (71), an activated carbon filter core (72) and anti-skid threads (73), the gas filtering device shell (71) is a hollow rectangular shell without a top and a bottom, the activated carbon filter core (72) is fixed on the upper half part of the inner side of the gas filtering device shell (71), the anti-skid threads (73) are arranged on the side wall of the lower half part of the inner side of the gas filtering device shell (71), and the gas filtering device shell (71) is sleeved on the upper end face of the exhaust pipeline (6) through the anti-skid threads (73).
6. The aging oven for producing die steel according to claim 1, wherein the heat-dissipating sealing cover (8) comprises a telescopic cylinder (81), a connecting rod (82), a sealing cover (83) and a sealing cover mounting seat (84), the sealing cover mounting seat (84) is fixed on the rear side surface of the oven body (10), the telescopic cylinder (81) is fixed on the upper end surface of the sealing cover mounting seat (84), the upper end of the telescopic cylinder (81) is fixedly connected with the upper end of the connecting rod (82), the lower end of the connecting rod (82) is fixed on the upper end surface of the sealing cover (83), the sealing cover (83) covers the outer side of the sealing cover mounting seat (84), and the sealing cover (83) is in up-and-down sliding fit with the sealing cover mounting seat (84).
7. The aging oven is used in mould steel production of claim 1, characterized in that, heat recovery pipeline (9) includes hot gas output pipeline (91), snakelike heat exchange pipeline (92) and hot gas input pipeline (93), snakelike heat exchange pipeline (92) are fixed in exhaust duct (6) inboardly, and snakelike heat exchange pipeline (92) head end and hot gas output pipeline (91) head end link up fixed connection, hot gas output pipeline (91) end link up fixed connection with air-supply line (53), snakelike heat exchange pipeline (92) end and hot gas input pipeline (93) head end link up fixed connection, hot gas input pipeline (93) end and furnace body (10) fixed connection, and hot gas input pipeline (93) link up with furnace body (10) inboard mutually.
8. The aging furnace for producing the die steel according to claim 1, wherein the furnace body (10) comprises a ventilation supporting limit plate (101), heat radiating fins (102), an outer furnace wall (103), an inner furnace wall (104), a furnace bottom (105) and heat conducting pipes (106), the outer furnace wall (103) and the inner furnace wall (104) are hollow spheres without tops and bottoms, the inner and outer side walls of the outer furnace wall (103) and the inner and outer side walls of the inner furnace wall (104) are coated with high temperature and corrosion resistant coatings, the inner furnace wall (104) is arranged on the inner side of the outer furnace wall (103), the upper end and the lower end of the inner furnace wall (104) are fixedly connected with the upper end and the lower end of the outer furnace wall (103), the heat conducting pipes (106) are provided in plurality, the heat conducting pipes (106) are uniformly fixed between the outer side wall of the inner furnace wall (104) and the inner side wall of the outer furnace wall (103), and the upper ends of the heat conducting pipes (106) converge on, the heat-radiating furnace is characterized in that heat-radiating fins (102) are fixedly arranged on the rear side of the outer furnace wall (103), air-permeable supporting limiting plates (101) are uniformly fixed on the inner side wall of the inner furnace wall (104), the air-permeable supporting limiting plates (101) are in sliding fit with the placing frame (44) through limiting strips (42), the furnace bottom (105) is arranged on the lower sides of the outer furnace wall (103) and the inner furnace wall (104), sodium chloride solution is filled between the outer furnace wall (103) and the inner furnace wall (104), and the heat-radiating fins (102) are covered in a sealing cover (83).
9. The aging furnace for producing the die steel as claimed in claim 1, wherein the furnace bottom lifting mechanism (12) comprises furnace bottom supporting frames (121) and air pressure telescopic rods (122), the air pressure telescopic rods (122) are embedded in the upper end face of the combustion base body (21), the number of the furnace bottom supporting frames (121) is two, the two furnace bottom supporting frames (121) are symmetrically fixed on the lower end face of the furnace bottom (105), and the lower sides of the two ends of the two furnace bottom supporting frames (121) are fixedly connected with the upper ends of the air pressure telescopic rods (122).
10. The aging furnace for producing die steel according to claim 1, wherein the working steps of the aging furnace for producing die steel are as follows:
pulling the base sealing cover (3) to separate the base sealing cover (3) from the combustion base (2), then placing the combusted coal and the like on an air inlet net (1) in the combustion base body (21), starting the air blowing mechanism (11), and blowing air into the device from the outer side of the device to the inner side of the device by the air blowing mechanism (11) to increase the combustion intensity of the coal;
heating the outer furnace wall (103) by coal, so that the sodium chloride solution and the heat conduction pipe (106) inside the outer furnace wall (103) are heated, and further the inner furnace wall (104) is uniformly heated;
when the temperature inside the inner furnace wall (104) reaches a specified temperature, the workpiece placing frame (4) is pulled out from the furnace body (10), the workpiece is placed on the workpiece placing frame (4), and then the workpiece placing frame (4) is pushed into the furnace body (10);
hot gas generated by coal combustion enters the exhaust pipeline (6) through the combustion base smoke outlet (23), then the heat recovery pipeline (9) in the exhaust pipeline (6) is heated, and then the gas is filtered by the gas filtering device (7) and then discharged
Starting a circulating fan motor (55), driving a rotating blade seat (51) and a rotating fan blade (52) to rotate by the rotation of the circulating fan motor (55), further enabling gas to be blown into the lower end of the inner side of the furnace body (10) from the upper end of the inner side of the furnace body (10), heating the gas through a heat conduction pipe (106), and further enabling the heated gas to uniformly heat the workpiece;
gas with reduced temperature enters the snakelike heat exchange pipeline (92) from a hot gas input pipeline (93) at the lower end of the furnace body (10) after the workpiece is heated, the gas in the snakelike heat exchange pipeline (92) is heated by hot gas in the exhaust pipeline (6), the heated gas enters the air inlet pipe (53) through the hot gas output pipeline (91) and enters the circulating fan shell (56) through the air inlet pipe (53), and then the heated gas is blown into the lower end of the inner side of the furnace body (10) from the upper end of the inner side of the furnace body (10) again;
when the furnace body (10) needs to be cooled, the telescopic cylinder (81) is started, the telescopic cylinder (81) extends to push the sealing cover (83) to move upwards, and then the radiating fins (102) are exposed outside, and the furnace body (10) is cooled;
after the workpiece aging is finished, the workpiece placing frame (4) is pulled out of the furnace body (10), the workpiece is taken out of the workpiece placing frame (4), then the workpiece placing frame (4) is pushed into the furnace body (10), and simultaneously waste residues fall onto the furnace bottom (105);
and (3) closing the equipment, starting the air pressure telescopic rod (122) to contract the air pressure telescopic rod (122), so that the furnace bottom supporting frame (121) moves downwards, the furnace bottom (105) moves downwards, and waste residues on the furnace bottom (105) are exposed, and at the moment, the waste residues on the furnace bottom (105) are cleaned.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010721216.2A CN111778386A (en) | 2020-07-24 | 2020-07-24 | Aging furnace for producing die steel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010721216.2A CN111778386A (en) | 2020-07-24 | 2020-07-24 | Aging furnace for producing die steel |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113122694A (en) * | 2021-04-08 | 2021-07-16 | 广东言铝铝业有限公司 | Aluminum aging furnace |
| CN116499274A (en) * | 2023-06-27 | 2023-07-28 | 四川领先微晶玻璃有限公司 | Temperature measurement system used in industrial sintering furnace |
-
2020
- 2020-07-24 CN CN202010721216.2A patent/CN111778386A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113122694A (en) * | 2021-04-08 | 2021-07-16 | 广东言铝铝业有限公司 | Aluminum aging furnace |
| CN116499274A (en) * | 2023-06-27 | 2023-07-28 | 四川领先微晶玻璃有限公司 | Temperature measurement system used in industrial sintering furnace |
| CN116499274B (en) * | 2023-06-27 | 2023-08-25 | 四川领先微晶玻璃有限公司 | Temperature measurement system used in industrial sintering furnace |
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Application publication date: 20201016 |