CN109813114B - Energy-saving type steel rolling electric heating furnace and application method thereof - Google Patents
Energy-saving type steel rolling electric heating furnace and application method thereof Download PDFInfo
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- CN109813114B CN109813114B CN201910255671.5A CN201910255671A CN109813114B CN 109813114 B CN109813114 B CN 109813114B CN 201910255671 A CN201910255671 A CN 201910255671A CN 109813114 B CN109813114 B CN 109813114B
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 27
- 238000005096 rolling process Methods 0.000 title claims abstract description 27
- 239000010959 steel Substances 0.000 title claims abstract description 27
- 238000005485 electric heating Methods 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000010438 heat treatment Methods 0.000 claims abstract description 143
- 230000007246 mechanism Effects 0.000 claims abstract description 8
- 239000002184 metal Substances 0.000 claims description 25
- 230000000694 effects Effects 0.000 claims description 8
- 238000004321 preservation Methods 0.000 claims description 7
- 238000009423 ventilation Methods 0.000 claims description 6
- 241000883990 Flabellum Species 0.000 claims description 4
- 238000009413 insulation Methods 0.000 claims description 4
- 230000008569 process Effects 0.000 abstract description 3
- 230000009471 action Effects 0.000 description 4
- 230000008602 contraction Effects 0.000 description 3
- 230000000670 limiting effect Effects 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The invention discloses an energy-saving steel rolling electric heating furnace and a using method thereof, the energy-saving steel rolling electric heating furnace comprises a support frame, a heating furnace outer shell, a heating furnace inner shell and a heating plate arranged in the heating furnace outer shell, the heating furnace inner shell is inserted into the heating furnace outer shell and is in sliding connection with the heating furnace outer shell, one end of a second hydraulic cylinder serving as a driving mechanism is fixed on the support frame, the other end of the second hydraulic cylinder is connected with the heating furnace inner shell through a mounting plate, the second hydraulic cylinder drives the heating furnace inner shell to slide upwards so as to increase the volume of the heating furnace, a longer component is convenient to process, a motor box is fixedly connected below the heating furnace outer shell, a first hydraulic cylinder is arranged in the motor box, a supporting plate is fixedly connected on a hydraulic rod of the first hydraulic cylinder, a motor is vertically arranged in the motor box, and the motor drives a fan blade to rotate through a rotating shaft so that heat is uniformly dispersed into the heating furnace.
Description
Technical Field
The invention relates to the technical field of steel rolling, in particular to an energy-saving type steel rolling electric heating furnace and a use method thereof.
Background
With the continuous development of society, the steel rolling industry is rapidly developed, and in the steel rolling process, a heating furnace is needed, and the heating furnace can heat the steel plate to be rolled to a required temperature, so that the subsequent rolling is convenient.
Most of steel rolling electric heating furnaces in the current market consume larger energy and the temperature inside the furnace is uneven, which is easy to cause component processing failure, and most of steel rolling electric heating furnaces are fixed in size, which is inconvenient to process longer components, while large-size heating furnaces consume larger energy, and waste energy is caused when small-size components are processed, if two heating furnaces with larger and smaller sizes are respectively built, the investment is too large and the method cannot be generally implemented.
Disclosure of Invention
The invention aims to provide an energy-saving steel rolling electric heating furnace and a use method thereof, which are used for solving the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides an energy-saving steel rolling electric heating furnace, includes support frame, heating furnace inner shell, heating furnace shell and installs at the inside hot plate of heating furnace shell, and the support frame is connected with the heating furnace shell, and the heating furnace inner shell inserts the heating furnace shell and with the sliding connection of heating furnace shell, install the actuating mechanism that drive heating furnace inner shell reciprocated on the support frame. The driving mechanism drives the inner shell of the heating furnace to move up and down in the scheme, so that the volume inside the heating furnace can be changed.
Optimally, the outer sides of the heating furnace outer shell and the heating furnace inner shell are provided with heat preservation and insulation layers. Through the heat preservation that sets up in this scheme, can reduce thermal loss, reach heat preservation, energy-conserving purpose.
Preferably, the motor box is fixedly connected below the heating furnace shell, the first hydraulic cylinder is arranged in the motor box, the hydraulic rod of the first hydraulic cylinder vertically penetrates through the motor box and the heating furnace shell in sequence and stretches into the heating furnace shell, the supporting plate is arranged at the top end of the hydraulic rod of the first hydraulic cylinder, and a plurality of ventilation holes in the vertical direction are formed in the supporting plate. Lifting of the supporting plate can be completed through telescopic hydraulic rods of the first hydraulic cylinders in the scheme, so that the volume inside the heating furnace is changed, and the ventilation holes in the vertical direction in the supporting plate can facilitate heat flow in the heating furnace.
Preferably, a baffle plate positioned below the supporting plate is arranged on the inner wall of the inner shell of the heating furnace. Through the baffle that sets up in this scheme, can rise to spacing effect to the rising of heating furnace inner shell to can prevent that the backup pad from falling and damaging below spare part.
Preferably, motors are respectively arranged at two sides of the first hydraulic cylinder, a rotating shaft of each motor sequentially penetrates through the motor case and the heating furnace shell and then stretches into the heating furnace shell, and fan blades are arranged on the rotating shaft. The motor that sets up in this scheme drives the flabellum rotation, can be with the heat evenly dispersed of hot plate to the heating furnace inside, makes the inside temperature of stove keep unanimous.
Optimally, the bottom end of the support frame is connected with the motor box, a third hydraulic cylinder which is vertically downward is arranged at the top end of the support frame, a cover frame is arranged at the end part of the hydraulic rod of the third hydraulic cylinder, a rubber cushion layer is arranged on the inner wall of the cover frame, and a heat-resistant plate is arranged at the middle position of the bottom end inside the cover frame. Through the lifting of the cover frame can be completed through the expansion and contraction of the hydraulic rod of the third hydraulic cylinder in the scheme, the sealing performance of the heating furnace can be enhanced by the rubber cushion layer, and the heat-resistant plate can prevent the rubber cushion layer from being heated and melted.
Preferably, the metal sleeve is installed on the lower end face of the support frame on two sides of the third hydraulic cylinder, the spring is vertically installed inside the metal sleeve, the metal rod is vertically installed at the bottom end of the spring, the lower end of the metal rod is fixedly connected to the top face of the cover frame, and the metal rod, the spring and the metal sleeve are all provided with two groups and are symmetrical relative to the central axis of the cover frame. Through the direction lift of metal pole in the sleeve in this scheme, can play the guide effect to the lid frame lift, when the lid frame risees, spring compression, when the lid frame descends, the spring extension can guarantee that the lid frame can smoothly accomplish to open and shut.
Preferably, the driving mechanism comprises two second hydraulic cylinders, the second hydraulic cylinders are vertically and downwards arranged on the supporting frame and distributed on two sides of the third hydraulic cylinder, the end parts of the hydraulic rods of the second hydraulic cylinders are provided with mounting plates, and the mounting plates are fixedly connected with the inner shell of the heating furnace. Lifting of the inner shell of the heating furnace can be completed through telescopic hydraulic rods of the second hydraulic cylinders in the scheme, so that the volume inside the heating furnace is changed.
Preferably, the heating furnace shell internally mounted has temperature sensor, and the display screen is installed at the outside motor case top of heating furnace shell, data processing module is installed on the display screen top, temperature sensor's output passes through wire and data processing module's input electric connection, and data processing module's output passes through wire and display screen's input electric connection. Through the temperature sensor and the data processing module that set up in this scheme, can let the inside temperature of display screen real-time display heating furnace to the staff of being convenient for monitors.
The application method of the energy-saving steel rolling electric heating furnace comprises the following steps:
a. starting a third hydraulic cylinder to shrink to drive the cover frame to rise, and then placing a member to be heated into a cavity formed by the inner shell and the outer shell of the heating furnace;
b. When the heated component is longer, the first hydraulic cylinder drives the supporting plate to descend, and the second hydraulic cylinder drives the inner shell of the heating furnace to ascend, so that the volume of the interior of the energy-saving steel rolling electric heating furnace is increased; when the heated component is shorter, the first hydraulic cylinder drives the supporting plate to ascend, and the second hydraulic cylinder drives the inner shell of the heating furnace to descend, so that the volume inside the energy-saving steel rolling electric heating furnace is reduced, the energy-saving effect is achieved, the baffle plate positioned below the supporting plate is arranged on the inner wall of the inner shell of the heating furnace, and the baffle plate ascends to limit the inner shell of the heating furnace;
c. The third hydraulic cylinder drives the cover frame to descend so as to seal the interior of the heating furnace, the heating plate and the motor are started, the motor drives the fan blades to rotate, and the fan blades drive heat generated by the heating plate to pass through the vent holes in the supporting plate, so that the heat is uniformly dispersed into the interior of the heating furnace;
d. the temperature sensor arranged in the heating furnace shell transmits a temperature signal to the data processing module, and the temperature inside the heating furnace is displayed on the display screen after being processed by the data processing module, so that the control of staff is facilitated.
Compared with the prior art, the invention has the beneficial effects that: the fan blades are driven to rotate through the rotating shaft, so that air circulation in the heating furnace outer shell and the heating furnace inner shell is accelerated, the temperature in the energy-saving steel rolling electric heating furnace is kept consistent, and an energy-saving effect is achieved; when a longer component needs to be processed, the first hydraulic cylinder and the second hydraulic cylinder are started, the supporting plate is driven to descend under the action of the first hydraulic cylinder, the heating furnace inner shell is driven to ascend under the action of the second hydraulic cylinder, and the volume inside the heating furnace is increased, so that the longer component is convenient to process; when the longer component does not need to be processed, the first hydraulic cylinder drives the supporting plate to ascend, and the second hydraulic cylinder drives the inner shell of the heating furnace to descend, so that the volume inside the heating furnace is reduced, and the energy-saving effect is achieved.
Drawings
FIG. 1 is a schematic elevational cross-sectional view of the present invention;
FIG. 2 is a schematic diagram of the joint of the heating furnace outer shell, the heating furnace inner shell and the heat preservation and insulation layer;
FIG. 3 is an enlarged schematic view of the portion A of FIG. 1 according to the present invention;
Fig. 4 is an enlarged view of the B part of fig. 1 according to the present invention.
The figure shows:
1. The heat-resistant plate comprises a rubber cushion layer, 2, a heat-resistant plate, 3, a supporting frame, 4, a heating plate, 5, a motor box, 6, universal wheels, 7, a motor, 8, a first hydraulic cylinder, 9, a hydraulic rod of the first hydraulic cylinder, 10, a rotating shaft, 11, a temperature sensor, 12, a display screen, 13, a wireless transceiver module, 14, a data processing module, 15, a heating furnace shell, 16, a mounting plate, 17, a cover frame, 18, a hydraulic rod of a second hydraulic cylinder, 19, a second hydraulic cylinder, 20, a hydraulic rod of a third hydraulic cylinder, 21, a third hydraulic cylinder, 22, a heating furnace inner shell, 23, a heat-preserving heat-insulating layer, 24, a sliding rail, 25, a metal sleeve, 26, a metal rod, 27, a spring, 28, a sliding block, 29, a baffle, 30, a vent hole, 31, a supporting plate, 32 and fan blades.
Detailed Description
In order to clearly illustrate the technical characteristics of the scheme, the scheme is explained below through a specific embodiment.
The energy-saving steel rolling electric heating furnace described in the embodiment comprises a supporting frame 3, a heating furnace inner shell 22, a heating furnace outer shell 15 and a heating plate 4 arranged in the heating furnace outer shell 15, wherein the heating furnace inner shell 22 is inserted into the heating furnace outer shell 15 and is in sliding connection with the heating furnace outer shell 15, a vertical sliding rail 24 is arranged on the inner side of the heating furnace outer shell 15, a sliding block 28 matched with the sliding rail 24 is arranged on the sliding rail 24, one side, far away from the sliding rail 24, of the sliding block 28 is connected with the heating furnace inner shell 22, the heating furnace inner shell 22 can be lifted smoothly through the matching of the sliding block 28 and the sliding rail 24, and heat preservation and insulation layers 23 are arranged on the outer sides of the heating furnace outer shell 15 and the heating furnace inner shell 22, so that heat loss can be reduced, and the purposes of heat preservation and energy conservation can be achieved.
The motor case 5 is fixedly connected below the heating furnace shell 15, 4 universal wheels 6 are installed at the bottom end of the motor case 5, a braking mechanism is arranged inside the universal wheels 6, the heating furnace is convenient to move and fix, a first hydraulic cylinder 8 which is vertical and upward is installed at the middle position inside the motor case 5, a hydraulic rod 9 of the first hydraulic cylinder vertically and upward penetrates through the motor case 5 and the heating furnace shell 15 in sequence and stretches into the heating furnace shell 15, a supporting plate 31 is horizontally installed at the top end of the hydraulic rod 9 of the first hydraulic cylinder, a plurality of vertical direction ventilation holes 30 are formed in the supporting plate 31, and lifting of the supporting plate 31 can be completed through expansion and contraction of the hydraulic rod 9 of the first hydraulic cylinder.
The baffle 29 arranged below the supporting plate 31 is arranged on the inner wall of the heating furnace inner shell 22, the baffle 29 can lift the heating furnace inner shell 22 up to a limit effect, and the supporting plate 31 can be prevented from falling to damage the lower parts such as the fan blades 32, the heating plate 4 and the like.
The motor 7 is installed respectively to first pneumatic cylinder 8 both sides, and vertically installs the pivot 10 that runs through motor case 5 and heating furnace shell 15 in proper order and stretch into to heating furnace shell 15 on the motor 7, installs flabellum 32 in the pivot 10, during operation, pivot 10 drives flabellum 32 rotation and evenly distributes the heat of hot plate 4 to the heating furnace inside, makes the inside temperature of stove keep unanimous.
The support frame 3 is installed to motor case 5 top, the intermediate position department at support frame 3 top installs vertical decurrent third pneumatic cylinder 21, the end mounting of the hydraulic stem 20 of third pneumatic cylinder has the cover frame 17, the lift of cover frame 17 can be accomplished through the flexible of the hydraulic stem 20 of third pneumatic cylinder, rubber cushion layer 1 is equipped with to the inner wall of cover frame 17, the intermediate position department level of the inside bottom of cover frame 17 installs heat-resisting board 2, rubber cushion layer 1 can strengthen the leakproofness of heating furnace, and heat-resisting board 2 can also prevent that rubber cushion layer 1 from being heated to melt.
The metal sleeve 25 is installed to the terminal surface under the support frame 3 of third pneumatic cylinder 21 both sides, the inside vertical spring 27 that installs of metal sleeve 25, and the vertical metal pole 26 of installing of spring 27 bottom, metal pole 26 lower extreme rigid coupling constitutes telescopic machanism on the top surface of cover frame 17 between metal pole 26 through spring 27 and the metal sleeve 25, and metal pole 26, spring 27 and metal sleeve 25 all are provided with two sets of and for the axis symmetry of cover frame 17, can guarantee the stability that cover frame 17 goes up and down through this mechanism, ensure that cover frame 17 can accomplish to open and shut smoothly, and the terminal surface has the spacing platform that restriction metal pole 26 deviate from under the metal sleeve 25.
Two second hydraulic cylinders 19 which are vertically downward are further installed on the support frames 3 on two sides of the third hydraulic cylinder 21, the end parts of the hydraulic rods 18 of the second hydraulic cylinders are horizontally provided with mounting plates 16, the mounting plates 16 are fixedly connected with the heating furnace inner shell 22, and the lifting of the heating furnace inner shell 22 can be driven through the expansion and the contraction of the hydraulic rods 18 of the second hydraulic cylinders.
Temperature sensor 11 is installed to the inside bottom edge of heating furnace shell 15, and the display screen 12 is installed in the heating furnace shell 15 outside, the motor case 5 top of keeping away from support frame 3 one side at heating furnace shell 15 is installed to display screen 12, and data processing module 14 is installed on the display screen 12 top, and temperature sensor 11's output passes through wire and data processing module 14's input electric connection, and data processing module 14's output passes through wire and display screen 12's input electric connection, shows the inside temperature of heating furnace on the display screen in real time to the staff of being convenient for monitors.
Further techniques adopted by this embodiment are: the top end of the display screen 12 is also provided with a wireless transceiver module 13, and the output end of the data processing module 14 is electrically connected with the input end of the wireless transceiver module 13 through a wire, so that the temperature in the heating furnace can be uploaded to the general control room in real time.
The application method of the embodiment comprises the following steps: when the energy-saving steel rolling electric heating furnace is used, the energy-saving steel rolling electric heating furnace is moved to a proper position through the universal wheel 6, then an external power supply is connected, the third hydraulic cylinder 21 is started to drive the hydraulic rod 20 of the third hydraulic cylinder to shrink, the hydraulic rod 20 of the third hydraulic cylinder drives the cover frame 17 to move upwards so that components can enter a cavity formed by the heating furnace inner shell 22 and the heating furnace outer shell 15, when longer components need to be processed, the first hydraulic cylinder 8 and the second hydraulic cylinder 19 are started, the supporting plate 31 is driven to descend under the action of the first hydraulic cylinder 8, the heating furnace inner shell 22 is driven to ascend under the action of the second hydraulic cylinder 19, the volume inside the energy-saving steel rolling electric heating furnace is increased, so that longer components can be processed conveniently, the baffle 29 positioned below the supporting plate 31 is arranged on the inner wall of the heating furnace inner shell 22, and the baffle 29 ascends to a limiting effect on the heating furnace inner shell 22. When a longer component does not need to be processed, the first hydraulic cylinder 8 drives the supporting plate 31 to ascend, the second hydraulic cylinder 19 drives the heating furnace inner shell 22 to descend, and the volume inside the energy-saving steel rolling electric heating furnace is reduced, so that the energy-saving effect is achieved; the third hydraulic cylinder 21 is started to drive the cover frame 17 to descend so that the inside of the heating furnace is closed, the heating plate 4 and the motor 7 are started, the motor 7 drives the fan blades 32 to rotate, and the fan blades 32 drive heat generated by the heating plate 4 to pass through the ventilation holes 30 on the supporting plate 31, so that the heat is uniformly dispersed into the inside of the heating furnace. The temperature sensor 11 installed inside the heating furnace shell 15 transmits temperature signals to the data processing module 14, and the data processing module 14 displays the temperature inside the heating furnace on the display screen 12 after processing, so that the temperature can be conveniently monitored by staff.
Of course, the above description is not limited to the above examples, and the technical features of the present invention that are not described may be implemented by or by using the prior art, which is not described herein again; the above examples and drawings are only for illustrating the technical scheme of the present invention and not for limiting the same, and it should be understood by those skilled in the art that the present invention is described in detail with reference to the preferred embodiments, and that the changes, modifications, additions or substitutions made by those skilled in the art without departing from the spirit of the present invention and the scope of the appended claims should be construed as well.
Claims (5)
1. An energy-saving steel rolling electric heating furnace is characterized in that: the heating furnace comprises a supporting frame (3), a heating furnace inner shell (22), a heating furnace outer shell (15) and a heating plate (4) arranged inside the heating furnace outer shell (15), wherein the supporting frame (3) is connected with the heating furnace outer shell (15), the heating furnace inner shell (22) is vertically inserted into the heating furnace outer shell (15) and is in sliding connection with the heating furnace outer shell (15), and a driving mechanism for driving the heating furnace inner shell (22) to move up and down is arranged on the supporting frame (3);
A motor box (5) is fixedly connected below the heating furnace shell (15), a first hydraulic cylinder (8) is arranged in the motor box (5), a hydraulic rod (9) of the first hydraulic cylinder vertically penetrates through the motor box (5) and the heating furnace shell (15) in sequence and stretches into the heating furnace shell (15), a supporting plate (31) is arranged at the top end of the hydraulic rod (9) of the first hydraulic cylinder, and a plurality of ventilation holes (30) in the vertical direction are formed in the supporting plate (31);
the bottom end of the support frame (3) is connected with the motor box (5), a third hydraulic cylinder (21) which is vertically downward is arranged at the top end of the support frame (3), a cover frame (17) is arranged at the end part of a hydraulic rod (20) of the third hydraulic cylinder, a rubber cushion layer (1) is arranged on the inner wall of the cover frame (17), and a heat-resistant plate (2) is arranged at the middle position of the bottom end inside the cover frame (17);
The lower end faces of the supporting frames (3) on two sides of the third hydraulic cylinder (21) are provided with metal sleeves (25), springs (27) are vertically arranged in the metal sleeves (25), the bottom ends of the springs (27) are vertically provided with metal rods (26), the lower ends of the metal rods (26) are fixedly connected to the top face of the cover frame (17), and the metal rods (26), the springs (27) and the metal sleeves (25) are provided with two groups and are symmetrical relative to the central axis of the cover frame (17);
The driving mechanism comprises two second hydraulic cylinders (19), the second hydraulic cylinders (19) are vertically and downwardly arranged on the support frame (3) and distributed on two sides of the third hydraulic cylinder (21), mounting plates (16) are arranged at the end parts of hydraulic rods (18) of the second hydraulic cylinders, and the mounting plates (16) are fixedly connected with the inner shell (22) of the heating furnace;
The using method of the heating furnace comprises the following steps:
a. Starting the third hydraulic cylinder (21) to shrink to drive the cover frame (17) to rise, and then placing a component to be heated into a cavity formed by the heating furnace inner shell (22) and the heating furnace outer shell (15);
b. when the heated component is longer, the first hydraulic cylinder (8) drives the supporting plate (31) to descend, and the second hydraulic cylinder (19) drives the heating furnace inner shell (22) to ascend; when the heated component is short, the first hydraulic cylinder (8) drives the supporting plate (31) to ascend, and the second hydraulic cylinder (19) drives the heating furnace inner shell (22) to descend; a baffle plate (29) arranged on the inner wall of the heating furnace inner shell (22) lifts up the heating furnace inner shell (22) to a limit effect;
c. The third hydraulic cylinder (21) drives the cover frame (17) to descend so as to seal the interior of the heating furnace, the heating plate (4) and the motor (7) are started, the motor (7) drives the fan blades (32) to rotate, and the fan blades (32) drive heat generated by the heating plate (4) to pass through the ventilation holes (30) on the supporting plate (31), so that the heat is uniformly dispersed into the interior of the heating furnace;
d. The temperature sensor (11) arranged in the heating furnace shell (15) transmits a temperature signal to the data processing module (14), and the data processing module (14) displays the temperature in the heating furnace on the display screen (12) after processing.
2. An energy-efficient electric heating furnace for rolling steel according to claim 1, characterized in that: the outer sides of the heating furnace outer shell (15) and the heating furnace inner shell (22) are respectively provided with a heat preservation and insulation layer (23).
3. An energy-efficient electric heating furnace for rolling steel according to claim 1, characterized in that: a baffle plate (29) positioned below the supporting plate (31) is arranged on the inner wall of the heating furnace inner shell (22).
4. An energy-efficient electric heating furnace for rolling steel according to claim 1, characterized in that: the motor (7) is installed respectively in first pneumatic cylinder (8) both sides, and the pivot (10) of motor (7) pass motor case (5), heating furnace shell (15) in proper order and stretch into inside heating furnace shell (15), install flabellum (32) on pivot (10).
5. An energy-efficient electric heating furnace for rolling steel according to claim 1, characterized in that: the heating furnace shell (15) internally mounted has temperature sensor (11), and display screen (12) are installed on the outside motor case (5) top of heating furnace shell (15), data processing module (14) are installed on display screen (12) top, the output of temperature sensor (11) passes through wire and the input electric connection of data processing module (14), and the output of data processing module (14) passes through wire and the input electric connection of display screen (12).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910255671.5A CN109813114B (en) | 2019-04-01 | 2019-04-01 | Energy-saving type steel rolling electric heating furnace and application method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910255671.5A CN109813114B (en) | 2019-04-01 | 2019-04-01 | Energy-saving type steel rolling electric heating furnace and application method thereof |
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| CN109813114A CN109813114A (en) | 2019-05-28 |
| CN109813114B true CN109813114B (en) | 2024-05-10 |
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| CN201910255671.5A Active CN109813114B (en) | 2019-04-01 | 2019-04-01 | Energy-saving type steel rolling electric heating furnace and application method thereof |
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| CN112684831A (en) * | 2020-12-04 | 2021-04-20 | 辽沈工业集团有限公司 | Copper-clad steel plate hot-rolling heating temperature control system |
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| CN203881132U (en) * | 2013-12-30 | 2014-10-15 | 陕西启悦材料科技有限公司 | Even-heating type sintering furnace by utilizing electrode plates |
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| CN109813114A (en) | 2019-05-28 |
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