CN112595104A - Step-type heating furnace with double-movable supporting device for fast-paced production and processing method - Google Patents
Step-type heating furnace with double-movable supporting device for fast-paced production and processing method Download PDFInfo
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- CN112595104A CN112595104A CN202011497257.4A CN202011497257A CN112595104A CN 112595104 A CN112595104 A CN 112595104A CN 202011497257 A CN202011497257 A CN 202011497257A CN 112595104 A CN112595104 A CN 112595104A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
- F27B9/20—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace
- F27B9/201—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace walking beam 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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/70—Furnaces for ingots, i.e. soaking pits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
- F27B9/38—Arrangements of devices for charging
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- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
- Tunnel Furnaces (AREA)
Abstract
The invention belongs to the technical field of hot processing equipment in ferrous metallurgy industry, and particularly relates to a step-by-step heating furnace with double movable supporting devices for fast-paced production and a processing method. The invention sets the supporting devices in the heating furnace as the movable supporting devices, so that the blank is always in a moving state, and the tapping efficiency is doubled.
Description
Technical Field
The invention belongs to the technical field of hot working and heat treatment equipment, and particularly relates to a step-by-step heating furnace with a double-movable supporting device for fast-paced production and a processing method thereof, which are generally suitable for a heating furnace before rolling or a heat treatment furnace.
Background
Along with the improvement of the requirements of energy conservation, environmental protection promotion, cost reduction and efficiency improvement in modern industry, the service life of products in the field of metallurgical hot working processes, the reduction of iron oxide scales in furnaces and the like are required to be further improved, the quality and yield indexes of the products are further improved, and the requirement of improving the movement frequency of hot-working blanks and shortening the stepping time of the blanks is required.
At present, a steel rolling heating furnace is provided with a fixed beam and a movable beam structure, and is generally designed to step by step a blank, and the blank is stepped by one step in a forward-descending-retreating-ascending movement period, so that the movement frequency of the blank cannot be improved in the walking period, and the steel tapping rate cannot be well improved.
Disclosure of Invention
In order to solve the technical problems, the invention provides the stepping heating furnace with the double-movable supporting device for fast-paced production and the processing method thereof, which improve the processing efficiency and are beneficial to reducing the oxidation burning loss rate of the steel billet in the furnace.
The invention is realized in such a way, and provides a step-by-step heating furnace with a double-movable supporting device for fast-paced production, which comprises a furnace body, a feeding device, a discharging device, a first step-by-step movable unit and a second step-by-step movable unit, wherein the first step-by-step movable unit comprises a first step-by-step movable supporting device, the second step-by-step movable unit comprises a second step-by-step movable supporting device, the feeding device is arranged on the feeding side of the furnace body, the discharging device is arranged on the discharging side of the furnace body, the first step-by-step movable supporting device and the second step-by-step movable supporting device are arranged in a staggered mode, and two ends of the first step-by-step.
Preferably, the first further movable supporting device is a first further movable beam, the second further movable supporting device is a second further movable beam, the first further movable unit further comprises a first furnace bottom stepping machine, the second further movable unit further comprises a second furnace bottom stepping machine, the first further movable beam is driven by the first furnace bottom stepping machine, and the second further movable beam is driven by the second furnace bottom stepping machine.
Preferably, a heating furnace bottom sealing device is arranged at the connecting position of the first stepping movable beam and the first furnace bottom stepping machine and at the connecting position of the second stepping movable beam and the second furnace bottom stepping machine.
Further preferably, the staggered arrangement mode of the first stepping movable beams and the second stepping movable beams is as follows: one first stepping movable beam and one second stepping movable beam are adjacently arranged to form a repeating unit in staggered arrangement or two first stepping movable beams and two second stepping movable beams are adjacently arranged to form a repeating unit in staggered arrangement.
Further preferably, the feeding device is a feeding roller way or a feeding supporting arm, the discharging device is a discharging roller way or a discharging supporting arm, a feeding opening and a discharging opening are respectively arranged on a feeding side and a discharging side of the furnace body, the end of the feeding roller way or the feeding supporting arm enters the furnace body from the feeding opening, the end of the front end of the first stepping movable beam and the end of the front end of the second stepping movable beam are arranged in a staggered mode, and the end of the discharging roller way or the discharging supporting arm enters the furnace body from the discharging opening and is arranged in a staggered mode with the end of the rear end of the first stepping movable beam and the end of the rear end of the second stepping movable beam.
Preferably, the first further movable supporting device is a first movable furnace bottom, the second further movable supporting device is a second movable furnace bottom, and the heating furnace is a single-side heating furnace.
The invention also provides a processing method of the step-by-step heating furnace produced by utilizing the double-movable supporting device in a fast rhythm, which comprises the following steps:
101) a first target blank is positioned to a feeding plane through the feeding device, the first stepping movable beam is positioned at a front high position, the second stepping movable beam is positioned at a rear low position, and the feeding plane is positioned between the high position and the low position;
102) in the T1 time, the second stepping movable beam rises to the feeding plane, the first target blank continuously rises to the rear high position, and the first stepping movable beam begins to fall after the second stepping movable beam reaches the rear high position;
103) in the T2 time, the second stepping movable beam drives the first target blank to move forwards to a front high position, and the first stepping movable beam moves backwards to a rear low position;
104) in the T0 time, the first stepping movable beam and the second stepping movable beam stop moving, the second target blank is positioned to the feeding plane through the feeding device, at the moment, the first target blank advances by the distance of one material level, and the first stepping movable beam and the second stepping movable beam respectively complete half of the moving track;
105) in the second round of T1 time, the first further walking beam rises to the feeding plane, continues to rise to the back high position after receiving the second target blank, and the second further walking beam begins to fall after reaching the back high position, and delivers the blank on the second further walking beam to the first further walking beam;
106) in the second round of T2 time, the first stepping movable beam drives the first blank and the second blank to advance to a front high position, and the second stepping movable beam retreats to a rear low position;
107) and in the second round of T0, the first stepping movable beam and the second stepping movable beam stop acting, at this time, the first target blank again travels by the distance of one material level, and the first stepping movable beam and the second stepping movable beam respectively finish the half action track again, namely the first target blank advances by the distance of 2 material levels in one motion cycle.
The invention also provides another method for processing a workpiece by using the fast-paced step-by-step heating furnace, which comprises the following steps:
201) a first target blank is positioned to a feeding plane through the feeding device, the first stepping movable beam is positioned at a front high position, the second stepping movable beam is positioned at a rear low position, and the feeding plane is positioned between the high position and the low position;
202) the second stepping movable beam rises to a feeding plane, continues to move forwards after rising to a rear high position after receiving the first target blank, and continues to accelerate forwards until the speed of the first stepping movable beam is equal to that of the second stepping movable beam after synchronously finishing descending, retreating and rising to a rear high position after receiving the second target blank;
203) the first further movable beam receives the first target blank and carries the second target blank to move forwards continuously, the second further movable beam synchronously finishes speed reduction, descends, retreats, receives the third target blank, continuously rises to a rear high position and then continues to move forwards until the speed is equal to that of the first further movable beam, and the process is continuously circulated.
Compared with the prior art, the invention has the advantages that:
the supporting beams in the heating furnace are all set as movable walking beams, so that the blank is always in a moving state, the steel tapping efficiency is doubled, and the oxidation burning loss rate of the steel billet in the furnace is favorably reduced.
Drawings
FIG. 1 is a view showing an overall structure of a heating furnace according to the present invention;
FIG. 2 is a structural diagram of the butt joint position of a feed roller way of a heating furnace, a first stepping movable beam and a second stepping movable beam, which are provided by the invention;
FIG. 3 is a structural diagram of the butt joint position of a discharge roller bed of the heating furnace, a first stepping movable beam and a second stepping movable beam, which are provided by the invention;
FIG. 4 is a diagram of a method step of processing a billet provided in example 1;
FIG. 5 is a diagram of a method step of processing a billet provided in example 2;
fig. 6 is a schematic diagram of the speed change of two movable beams in embodiment 2.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Examples 1,
Referring to fig. 1, fig. 2 and fig. 3, the embodiment provides a step-by-step heating furnace for fast-paced production with double movable supporting devices, which comprises a furnace body 9, a feeding device 7, a discharging device 8, a first movable unit and a second movable unit, wherein the first movable unit comprises a first movable supporting device, the second movable unit comprises a second movable supporting device, the feeding device 7 is arranged at the feeding side of the furnace body 9, the discharging device 8 is arranged at the discharging side of the furnace body 9, the first movable supporting device and the second movable supporting device are arranged in a staggered manner, and two ends of the first movable supporting device and the second movable supporting device are respectively butted with the feeding device 7 and the discharging device 8.
In this embodiment, the first further movable supporting device is a first further movable beam 1, the second further movable supporting device is a second further movable beam 2, the first further movable unit further comprises a first furnace bottom stepping machine 3, the second further movable unit further comprises a second furnace bottom stepping machine 4, the first further movable beam 1 is driven by the first furnace bottom stepping machine 3, and the second further movable beam 2 is driven by the second furnace bottom stepping machine 4.
In order to increase the sealing, as an improvement of the technical scheme, a heating furnace bottom sealing device 5 is arranged at the connecting position of the first stepping movable beam 1 and the first furnace bottom stepping machine 3 and the connecting position of the second stepping movable beam 2 and the second furnace bottom stepping machine 4.
The sealing device 5 is provided with a water seal tank and a slag scraping mechanism at the bottom of the stepping heating furnace, and plays roles of water seal sealing and slag scraping. According to the different sizes of the blanks fed into the heating furnace, as an improvement of the technical scheme, the staggered arrangement mode of the first stepping movable beam 1 and the second stepping movable beam 2 is as follows: one first stepping movable beam 1 and one second stepping movable beam 2 are adjacently arranged to form a repeating unit in a staggered arrangement or two first stepping movable beams 1 and two second stepping movable beams 2 are adjacently arranged to form a repeating unit in a staggered arrangement.
In this embodiment, feed arrangement 7 is the feeding roll table, discharging device 8 is the ejection of compact roll table feeding side and ejection of compact side on the furnace body 9 are equipped with feeding trompil 6 and ejection of compact trompil respectively, and the end of feeding roll table gets into furnace body 9 from feeding trompil 6, with first step walking beam 1 the front end of second step walking beam 2 is crisscross arranges, and the end of ejection of compact roll table gets into furnace body 9 from ejection of compact trompil, and is crisscross arranges with the rear end of first step walking beam 1, second step walking beam 2.
Referring to fig. 4, the method for processing a workpiece by using the above-mentioned fast-paced step-by-step heating furnace includes the following steps:
101) the first target blank 101 is positioned to the feeding plane 20 by the feeding device 7, the first further walking beam 1 is in the front high position, the second further walking beam 2 is in the rear low position, and the feeding plane 20 is between the high position and the low position;
102) in the time of T1, the second-step walking beam 2 rises to the feeding plane 20, continues to rise to the rear high position after receiving the first target blank 101, and the first-step walking beam 1 starts to fall after the second-step walking beam 2 reaches the rear high position;
103) in the time of T2, the second stepping movable beam 2 carries the first target blank 101 to advance forwards to a front high position, and the first stepping movable beam 1 retreats to a rear low position;
104) in the time of T0, the first stepping movable beam 1 and the second stepping movable beam 2 stop acting, the second target blank is positioned to the feeding plane 20 through the feeding device 7, at the moment, the first target blank 101 advances by a distance of one material level, and the first stepping movable beam 1 and the second stepping movable beam 2 respectively complete half action tracks;
105) in the second round of T1, the first further walking beam 1 rises to the feeding plane 20, continues to rise to the rear high position after receiving the second target blank, the second further walking beam 2 starts to fall after the first further walking beam 1 reaches the rear high position, and the blank on the second further walking beam is delivered to the first further walking beam 1;
106) in the second round of T2 time, the first stepping movable beam 1 carries the first blank and the second blank to advance to a front high position, and the second stepping movable beam 2 retreats to a rear low position;
107) during the second round T0, the first stepping walking beam 1 and the second stepping walking beam 2 stop operating, and at this time, the first target blank 101 again travels by a distance of one material level, and the first stepping walking beam 1 and the second stepping walking beam 2 respectively complete a half movement trajectory again, that is, the first target blank 101 advances by a distance of 2 material levels in one movement cycle.
Examples 2,
Referring to fig. 5 and 6, unlike embodiment 1, the processing method is provided in this embodiment, which includes the steps of:
201) the first target blank 101 is positioned to the feeding plane 20 by the feeding device 7, the first further walking beam 1 is in the front high position, the second further walking beam 2 is in the rear low position, and the feeding plane 20 is between the high position and the low position;
202) the second stepping movable beam 2 rises to the feeding plane 20, continues to move forwards after rising to a rear high position by the first target blank 101, and continues to accelerate forwards until the speed of the first stepping movable beam 1 is equal to that of the second stepping movable beam 2 after synchronously finishing descending, retreating and rising to a rear high position by the second target blank;
203) the first stepping movable beam 1 receives the first target blank 101 and carries the second target blank to move forwards continuously, the second stepping movable beam 2 synchronously finishes speed reduction, descends, retreats, receives the third target blank, continuously rises to a rear high position and then continuously moves forwards until the speed is equal to that of the first stepping movable beam 1, and the process is circulated continuously.
That is, in the movement method provided in this embodiment, the blank is always moving, and when the first stepping movable beam 1 takes over the blank to advance at the high position, the second furnace stepping movable beam 2 completes the processes of advancing at a constant speed (if it has not yet reached the front high position), decelerating to advance and lowering, retreating, ascending, and accelerating to advance, and when the first stepping movable beam 1 and the second stepping movable beam 2 are equal in speed, the second stepping movable beam 2 takes over the blank to complete the process of advancing at a constant speed of the second stepping movable beam, and the cycle is continued.
Examples 3,
This embodiment provides a marching type heating furnace of fast rhythm production, which comprises a furnace body 9, feed arrangement 7, discharging device 8, first step activity unit and second step activity unit, first step activity unit includes first step activity strutting arrangement, second step activity unit includes second step activity strutting arrangement, feed arrangement 7 sets up the feeding side at furnace body 9, discharging device 8 sets up the discharge side at furnace body 9, first step activity strutting arrangement and second step activity strutting arrangement are crisscross to be arranged, and first step activity strutting arrangement and second step activity strutting arrangement's both ends respectively with feed arrangement 7 and 8 butt joints of discharging device.
In this embodiment, the first further movable supporting device is a first movable furnace bottom, the second further movable supporting device is a second movable furnace bottom, and the heating furnace is a single-side heating furnace.
The blanks are alternately placed on the first movable furnace bottom and the second movable furnace bottom to advance, and the two movable furnace bottoms alternately complete the movement tracks of ascending, advancing, descending and retreating.
Claims (8)
1. The utility model provides a marching type heating furnace of fast rhythm production of two movable supporting device, a serial communication port, which comprises a furnace body (9), feed arrangement (7), discharging device (8), first step activity unit and second step activity unit, first step activity unit includes first step activity strutting arrangement, second step activity unit includes second step activity strutting arrangement, feed arrangement (7) set up the feeding side at furnace body (9), discharging device (8) set up the discharge side at furnace body (9), first step activity strutting arrangement and second step activity strutting arrangement are crisscross to be arranged, and the both ends of first step activity strutting arrangement and second step activity strutting arrangement dock with feed arrangement (7) and discharging device (8) respectively.
2. A walking beam furnace for the fast paced production of dual-action supporting means according to claim 1, characterized in that said first further-action supporting means is a first further walking beam (1), said second further-action supporting means is a second further walking beam (2), said first further-action unit further comprises a first hearth stepping mechanism (3), said second further-action unit further comprises a second hearth stepping mechanism (4), said first further walking beam (1) being driven by said first hearth stepping mechanism (3), said second further walking beam (2) being driven by said second hearth stepping mechanism (4).
3. A walking beam furnace with double movable supporting device for fast paced production according to claim 2, wherein a furnace bottom sealing device (5) is provided at the connecting position of said first walking beam (1) and said first furnace bottom stepping machine (3) and at the connecting position of said second walking beam (2) and said second furnace bottom stepping machine (4).
4. A walking beam furnace with double movable supporting device for fast paced production according to claim 2, wherein the staggered arrangement of the first walking beam (1) and the second walking beam (2) is: one first stepping movable beam (1) and one second stepping movable beam (2) are arranged adjacently to form a repeating unit in staggered arrangement or two first stepping movable beams (1) and two second stepping movable beams (2) are arranged adjacently to form a repeating unit in staggered arrangement.
5. The walking beam furnace of claim 2, wherein the feeding device (7) is a feeding roller table or a feeding supporting arm, the discharging device (8) is a discharging roller table or a discharging supporting arm, the feeding side and the discharging side of the furnace body (9) are respectively provided with a feeding opening (6) and a discharging opening, the end of the feeding roller table or the feeding supporting arm enters the furnace body (9) from the feeding opening (6), and is arranged in a staggered manner with the front ends of the first stepping movable beam (1) and the second stepping movable beam (2), and the end of the discharging roller table or the discharging supporting arm enters the furnace body (9) from the discharging opening and is arranged in a staggered manner with the rear ends of the first stepping movable beam (1) and the second stepping movable beam (2).
6. The step furnace for fast paced production of dual movable supports of claim 1, wherein said first further movable support is a first movable hearth, said second further movable support is a second movable hearth, and said furnace is a single-sided heating furnace.
7. A method of manufacturing a walking beam furnace using the dual-action support device of claim 2, comprising the steps of:
101) the first target blank is positioned to a feeding plane through the feeding device (7), the first stepping movable beam (1) is positioned at a front high position, the second stepping movable beam (2) is positioned at a rear low position, and the feeding plane is positioned between the high position and the low position;
102) in the T1 time, the second stepping movable beam (2) rises to the feeding plane, continues to rise to the rear high position after receiving the first target blank, and the first stepping movable beam (1) begins to fall after the second stepping movable beam (2) reaches the rear high position;
103) in the T2 time, the second stepping movable beam (2) carries the first target blank to advance forwards to a front high position, and the first stepping movable beam (1) retreats to a rear low position;
104) in the T0 time, the first stepping movable beam (1) and the second stepping movable beam (2) stop acting, the second target blank is positioned to a feeding plane through a feeding device (7), at the moment, the first target blank advances by a distance of one material level, and the first stepping movable beam (1) and the second stepping movable beam (2) respectively complete half action tracks;
105) in the second round T1 time, the first further walking beam (1) rises to the feeding plane, continues to rise to the rear high position after receiving the second target blank, the second further walking beam (2) starts to fall after the first further walking beam (1) reaches the rear high position, and the blank on the second further walking beam is delivered to the first further walking beam (1);
106) in the second round of T2 time, the first stepping movable beam (1) carries the first blank and the second blank to advance to a front high position, and the second stepping movable beam (2) retreats to a rear low position;
107) and in the second round T0, the first stepping movable beam (1) and the second stepping movable beam (2) stop acting, at the moment, the first target blank again moves by the distance of one material level, and the first stepping movable beam (1) and the second stepping movable beam (2) respectively complete a half action track again, namely the first target blank moves by the distance of 2 material levels in one motion cycle.
8. A method of processing a workpiece using the fast paced walking beam furnace of claim 2, comprising the steps of:
201) the first target blank is positioned to a feeding plane through the feeding device (7), the first stepping movable beam (1) is positioned at a front high position, the second stepping movable beam (2) is positioned at a rear low position, and the feeding plane is positioned between the high position and the low position;
202) the second stepping movable beam (2) rises to a feeding plane, continues to move forwards after rising to a rear high position after receiving the first target blank, and continues to accelerate forwards until the speed of the first stepping movable beam (2) is equal to that of the second stepping movable beam (2) after synchronously finishing descending, retreating and rising to a rear high position after receiving the second target blank;
203) the first stepping movable beam (1) receives the first target blank and carries the second target blank to move forwards continuously, the second stepping movable beam (2) synchronously finishes speed reduction and descends, retreats, receives the third target blank and continuously rises to a rear high position, and then continuously moves forwards until the speed is equal to that of the first stepping movable beam (1), and the circulation is continued.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011497257.4A CN112595104A (en) | 2020-12-17 | 2020-12-17 | Step-type heating furnace with double-movable supporting device for fast-paced production and processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011497257.4A CN112595104A (en) | 2020-12-17 | 2020-12-17 | Step-type heating furnace with double-movable supporting device for fast-paced production and processing method |
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| Publication Number | Publication Date |
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| CN112595104A true CN112595104A (en) | 2021-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011497257.4A Pending CN112595104A (en) | 2020-12-17 | 2020-12-17 | Step-type heating furnace with double-movable supporting device for fast-paced production and processing method |
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| Country | Link |
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| CN (1) | CN112595104A (en) |
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2020
- 2020-12-17 CN CN202011497257.4A patent/CN112595104A/en active Pending
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