CN115634983A - Heating furnace - Google Patents

Heating furnace Download PDF

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Publication number
CN115634983A
CN115634983A CN202110811162.3A CN202110811162A CN115634983A CN 115634983 A CN115634983 A CN 115634983A CN 202110811162 A CN202110811162 A CN 202110811162A CN 115634983 A CN115634983 A CN 115634983A
Authority
CN
China
Prior art keywords
wall
furnace
heating
wall body
cover
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202110811162.3A
Other languages
Chinese (zh)
Inventor
安健
李�浩
王波
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Suzhou Pressler Advanced Forming Technologies Co ltd
Original Assignee
Suzhou Pressler Advanced Forming Technologies Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Suzhou Pressler Advanced Forming Technologies Co ltd filed Critical Suzhou Pressler Advanced Forming Technologies Co ltd
Priority to CN202110811162.3A priority Critical patent/CN115634983A/en
Priority to PCT/CN2022/105874 priority patent/WO2023001062A1/en
Publication of CN115634983A publication Critical patent/CN115634983A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/02—Stamping using rigid devices or tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D37/00—Tools as parts of machines covered by this subclass
    • B21D37/16—Heating or cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00—Making other particular articles
    • B21D53/88—Making other particular articles other parts for vehicles, e.g. cowlings, mudguards
    • 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
    • F27B17/00—Furnaces of a kind not covered by any preceding group
    • 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
    • F27B9/24—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 being carried by a conveyor
    • 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
    • F27B9/32—Casings
    • F27B9/34—Arrangements of linings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D1/00—Casings; Linings; Walls; Roofs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D1/00—Casings; Linings; Walls; Roofs
    • F27D1/12—Casings; Linings; Walls; Roofs incorporating cooling arrangements

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Tunnel Furnaces (AREA)

Abstract

The invention discloses a heating furnace which comprises a furnace body, a first wall body, a second wall body, a first heating device and a transmission device. The first wall body and the second wall body are arranged in the furnace body oppositely along the first direction, and cooling liquid flows in the first wall body. The first heating device comprises a plurality of first heating elements which are arranged at intervals along the second direction, any one first heating element is arranged between the first wall body and the second wall body, and a terminal of any one first heating element penetrates through the first wall body. The transmission device comprises at least one transmission roller, any one transmission roller is arranged between the first wall body and the second wall body, and any one transmission roller penetrates out of the first wall body to be connected with the first transmission device in a transmission mode. The first direction is not parallel or coincident with the second direction. The heating furnace can ensure that components in the side hearth work at non-high temperature, prolong the service life of the components and reduce the deformation of a furnace body steel structure caused by high temperature.

Description

Heating furnace
Technical Field
The invention relates to the technical field of heating equipment, in particular to a heating furnace.
Background
At present, high-strength steel materials in the automobile hot stamping industry are generally two types, namely 22MnB5 coated plates and bare plates. Bare boards are increasingly used because they are inexpensive. Since the bare plate will produce oxide skin after being heated, the hot forming production line on the market adopts a production process method for inhibiting the oxidation of the bare plate. The method is to introduce inert gas into a heating furnace to reduce the oxygen content. And the low-oxygen environment only can slow down the oxidation speed of the bare plate at high temperature and cannot avoid the generation of oxide skin, particularly when the furnace gas is not uniformly mixed, the oxidation of the bare plate is aggravated, so that the surface quality of the bare plate after thermal forming can not reach the surface quality effect of the coated plate after thermal forming, and therefore, a shot blasting oil injection process is carried out after the bare plate is thermally formed, and the purpose is to remove the oxide skin generated during thermal forming.
The oxide skin of the bare plate after hot forming mainly comprises ferrous oxide, ferroferric oxide and ferric oxide, is crisp and has no extensibility, and is easy to crack and separate under the action of mechanical action and hot processing. And the hardness of the oxide skin is higher than that of the die, so when the bare plate is formed on the die, the oxide skin on the bare plate can increase the friction between the bare plate and the die, the die loss of the die is increased, the service life of the die is shortened, and meanwhile, the formation performance of the bare plate can be reduced due to the oxide skin, so that the bare plate is easy to strain. And the thermal conductivity of the oxide scale is very low, which seriously affects the heat transfer between the bare plate and the die.
The shot blasting is to remove oxide skin after the forming of a bare plate, the shot blasting utilizes a steel sand flow moving at a high speed to continuously impact the surface of a workpiece of the bare plate to remove the oxide skin, continuous mechanical impact is easy to generate unacceptable deformation on the part, the dimensional accuracy of the part cannot be ensured, the possibility of deformation is very high for parts with thin wall thickness such as 1.0mm and below, and especially for parts with poor rigidity such as a door ring, the deformation is caused by one hundred percent. In addition, the impact of dust generated by shot blasting on the environment is large.
At present, a production process method for introducing inert gas into a heating furnace to reduce the oxygen content so as to inhibit the oxidation of a bare plate mostly adopts a roller hearth type long-line heating furnace or a box type furnace. The roller hearth type long-line heating furnace has the advantages of longer furnace body, large floor area and large hearth space. The box-type heating furnace is mostly of a 4-8-layer structure, and compared with a roller-hearth long-line heating furnace, although the length of the box-type heating furnace is reduced, the height of the box-type heating furnace is increased, and the volume of a hearth is not greatly reduced.
For a roller hearth type long-line heating furnace or a box-type furnace, a sealing structure is not arranged, external gas can enter a hearth, and due to the fact that the hearth space is large, vacuum is difficult to quickly build in the roller hearth type long-line heating furnace or the box-type furnace. Therefore, the roller-hearth long-line heating furnace and the box-type heating furnace both heat the bare plate material in the protective gas atmosphere, and thus the generation of oxide scales cannot be avoided.
The furnace wall of the roller hearth type long-line heating furnace or the box type furnace is not provided with a cooling structure, and the temperature rise of the steel structure of the furnace wall can influence structural parts and functional parts on the furnace wall and even can cause the deformation of the furnace wall.
Most vacuum furnaces on the market at present are cylindrical and periodic, a transmission device is not arranged in a hearth, materials need to be manually intervened in the hearth, the hearth is limited by the structure, the occupied area is large, the production efficiency is low, and large-scale production of single equipment cannot be realized.
The above problems are in need of improvement.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides a heating furnace which can ensure that components in a side hearth work at a non-high temperature, prolong the service life of the components, reduce the deformation of a furnace body steel structure caused by high temperature and ensure the structural strength of the furnace body steel structure.
The invention discloses a heating furnace, comprising:
a furnace body;
the cooling device comprises a first wall body and a second wall body, wherein the first wall body and the second wall body are oppositely arranged in the furnace body along a first direction, and cooling liquid flows in the first wall body;
the first heating device comprises a plurality of first heating elements which are arranged at intervals along a second direction, any one of the first heating elements is arranged between the first wall body and the second wall body, and a wiring terminal of any one of the first heating elements is arranged in the first wall body in a penetrating manner; and
the conveying device can convey materials along the second direction and comprises at least one driving roller, any one driving roller is arranged between the first wall body and the second wall body, and any one driving roller penetrates out of the first wall body to be in transmission connection with the first driving device;
wherein the first direction is not parallel to or coincident with the second direction.
Preferably, the second wall is internally provided with cooling liquid.
Preferably, the end surface of the first wall body facing the second wall body is provided with a heat insulating material.
Preferably, the furnace body includes along two side covers that the first direction set up relatively, along two furnace gates that the second direction set up relatively and along lid and the pedestal that the third direction set up relatively, lid, arbitrary one the side cover with arbitrary one the week side of furnace gate all has the sealing washer, so that the inside of furnace body can keep sealed state, arbitrary one the furnace gate can be relative the furnace body opens and shuts, the first direction the second direction with third direction mutually perpendicular.
Further preferably, cooling liquid flows in both the cover body and the base body, the end surface of the cover body facing the first heating device is provided with a heat insulating material, and the end surface of the base body facing the transmission device is also provided with a heat insulating material.
Preferably, the cover body is provided with at least one pipeline, the outlet end of any one of the pipelines is positioned on the end surface of the cover body, which is opposite to the first heating device, the inlet end of any one of the pipelines is communicated with the inside of the furnace body, and the outlet end of the pipeline is communicated with the vacuum device.
Preferably, the cover body is provided with a temperature measuring port penetrating through the thickness direction of the cover body, the temperature measuring port is provided with vacuum glass so as to be capable of sealing the temperature measuring port, a sealing ring is arranged between the vacuum glass and the cover body, and the vacuum glass is arranged on the end face, back to the first heating device, of the cover body.
Preferably, the first wall body is provided with a first side wall and a second side wall which are opposite to each other along the second direction, a plurality of first partition plates and a plurality of second partition plates are arranged in the first wall body, the first partition plates and the second partition plates are arranged at intervals, any one of the first partition plates and any one of the second partition plates are connected with the first wall body along two opposite ends of the first direction, any one of the first partition plates is connected with the first side wall of the first wall body, any one of the first partition plates is provided with a first preset distance from the second side wall of the first wall body, any one of the second partition plates is connected with the second side wall of the first wall body, and any one of the second partition plates is provided with a second preset distance from the first side wall of the first wall body.
Preferably, a material taking port is formed in the first wall body, the material taking port sequentially penetrates through the first wall body and the heat insulation material on the first wall body in sequence in the first direction, the material is placed on the conveying device, and the material taking port corresponds to the material and can be touched by the material taking port to obtain the material.
Preferably, the heating furnace comprises at least one first thermocouple, and a measuring point of any one first thermocouple is arranged close to the first heating device.
The invention has the following beneficial effects:
according to the heating furnace, any one of the transmission rollers penetrates out of the first wall body to be in transmission connection with the first transmission device, so that the first transmission device is arranged in the first side hearth, and the first wall body can play a role in isolation, so that a circuit of the first heating element in the first side hearth and the first transmission device are protected. The cooling liquid flows in the first wall, so that heat in the main hearth can be prevented from being transferred to the first side hearth, the circuit in the first side hearth and the first transmission device are guaranteed to work at a non-high temperature, and the service life of the transmission device is prolonged.
The heating furnace provided by the invention has the advantages that the cooling liquid flows in the cover body, so that the deformation of the steel structure of the cover body caused by high temperature is reduced, and the sealing ring arranged on the peripheral side of the cover body is protected, thereby ensuring the structural strength and the sealing effect. The cooling liquid flows in the seat body, so that the deformation of the steel structure of the seat body caused by high temperature is reduced, and the structural strength of the steel structure of the seat body is ensured.
The heating furnace can connect a plurality of heating furnaces through the opened furnace doors, and is connected in series to form a continuous high-temperature furnace, so that a plurality of furnace bodies can be produced simultaneously, and the production efficiency is improved.
In order to make the aforementioned and other objects, features and advantages of the invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of the structure of a heating furnace in the embodiment of the present invention;
FIG. 2 is a sectional view of a heating furnace in an embodiment of the present invention;
FIG. 3 is a top view of a furnace with a cover removed in accordance with an embodiment of the present invention;
FIG. 4 is a schematic view showing the structure of a side cover in the embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a cover according to an embodiment of the present invention;
FIG. 6 is a cross-sectional view of a cover in an embodiment of the present invention;
FIG. 7 is a schematic view of the structure of a drive mechanism in an embodiment of the invention;
FIG. 8 is a cross-sectional view of a first wall in an embodiment of the present invention;
reference numbers to the above figures: 1-a first wall; 101-a first separator; 102-a second separator; 2-a first heating element; 201-line; 3-a drive mechanism; 301-a drive unit; 302-a steel base; 303-rotary dynamic sealing device; 304-a drive shaft; 4-a cover body; 401-a pipe; 402-temperature measuring port; 403-vacuum measuring system; 5-side cover; 501-a mounting seat; 6-furnace door; 7-a first thermocouple; 8-a second thermocouple; 9-a driving roller; 10-material; 11-thermal insulation material; 12-a base; 13-material taking port; 14-a second wall; 15-second heating element.
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 to 8, the present embodiment provides a heating furnace including:
a furnace body;
the furnace body comprises a first wall body 1 and a second wall body 14, wherein the first wall body 1 and the second wall body 14 are oppositely arranged in the furnace body along a first direction, and cooling liquid flows in the first wall body 1;
the first heating device comprises a plurality of first heating elements 2 which are arranged at intervals along a second direction, any one of the first heating elements 2 is arranged between the first wall body 1 and the second wall body 14, and a terminal of any one of the first heating elements 2 is arranged in the first wall body 1 in a penetrating manner; and
the conveying device can convey the material 10 along the second direction, the conveying device comprises at least one driving roller 9, any one driving roller 9 is arranged between the first wall body 1 and the second wall body 14, and any one driving roller 9 penetrates out of the first wall body 1 to be in transmission connection with the first driving device;
wherein the first direction is not parallel to or coincident with the second direction.
In the embodiment, the first wall 1 and the second wall 14 are arranged in the furnace body, so that a main furnace chamber for heating is formed between the first wall 1 and the second wall 14, a first side furnace chamber is formed on the side of the end surface of the first wall 1, which is opposite to the second wall 14, and a second side furnace chamber is formed on the side of the end surface of the second wall 14, which is opposite to the first wall 1. Because the cooling liquid flows in the first wall body 1, the temperature in the first side hearth can be kept low.
In this embodiment, any one of the terminals of the first heating element 2 is inserted into the first wall 1, so that the line 201 connected to the terminal of any one of the first heating element 2 can be placed in the first side hearth, in this embodiment, the driving roller 9 penetrates out of the first wall 1 to be in transmission connection with the first transmission device, so that the first transmission device is disposed in the first side hearth, and the first wall 1 can play a role in isolation, so that the line 201 and the first transmission device of the first heating element 2 in the first side hearth are protected.
This embodiment has the coolant liquid through the inside flow that sets up first wall body 1 to can prevent in heat transfer to the first side furnace in the main furnace, thereby guaranteed that circuit 201 and the first transmission in the first side furnace are in the work under the non-high temperature, prolong its life.
In this embodiment, the cooling liquid flows inside the second wall 14, so that the temperature in the second-side furnace can be kept low.
In this embodiment, the third direction is a vertical direction, and both the first direction and the second direction are horizontal directions.
In this embodiment, the first heating device is disposed above the transporting device, and the second heating device is disposed below the transporting device.
The first heating device comprises a plurality of first heating elements 2 which are arranged side by side at intervals along the second direction, a heating wire is wound on any one of the first heating elements 2, and any one of the first heating elements 2 is arranged along the first direction. Two opposite ends of any one first heating element 2 in the first direction are both terminals, and two terminals of any one first heating element 2 are respectively arranged in the first wall 1 and the second wall 14 in a penetrating manner, so that circuits 201 connected with two ends of the first heating element 2 can be respectively arranged in the first side hearth and the second side hearth, and further can work at a non-high temperature.
The second heating device comprises a plurality of second heating elements 15 arranged side by side at intervals along the second direction, a heating wire is wound on any one of the second heating elements 15, and any one of the second heating elements 15 is arranged along the first direction. Two opposite ends of any one second heating element 15 along the first direction are both terminals, and two terminals of any one second heating element 15 penetrate through the first wall 1 and the second wall 14 respectively, so that the circuits 201 connected with two ends of the second heating element 15 can be arranged in the first side hearth and the second side hearth respectively, and further can work under non-high temperature.
The transmission device in this embodiment includes a plurality of driving rollers 9 arranged side by side at intervals in the second direction, and any one of the driving rollers 9 is disposed in the first direction. One end of any one of the driving rollers 9 penetrates through the first wall 1 to be in transmission connection with the first transmission device, and the other end of the driving roller penetrates through the second wall 14 to be in transmission connection with the second transmission device. In other words, the first transmission device is arranged in the first side hearth, and the second transmission device is arranged in the second side hearth.
Both ends of any one of the driving rollers 9 are provided with gears.
The gears on the same side of the transmission device are connected through chains. In other words, a plurality of gears in the first side hearth are connected through chains, and a plurality of gears in the second side hearth are connected through chains. In this embodiment, the first transmission device is a gear and a chain in the first side hearth, and the second transmission device is a gear and a chain in the second side hearth.
The heating furnace of the embodiment further comprises a driving mechanism 3, wherein the driving mechanism 3 comprises a driving unit 301, a rotary dynamic sealing device 303, a steel seat 302 and a transmission shaft 304. The steel seat 302 is installed on one of the side covers 5, the installation seat 501 is arranged on the side cover 5 and used for installing the steel seat 302, and the installation seat 501 and the steel seat 302 are connected in a sealing mode through a sealing ring. The transmission shaft 304 is arranged in the furnace body in a penetrating manner, the transmission shaft 304 is connected with a gear at one end of one of the transmission rollers 9, therefore, the transmission shaft 304 can drive one of the transmission rollers 9 to rotate, and under the transmission of the chain, other transmission rollers 9 can also rotate synchronously. The output end of the driving unit 301 is connected to the transmission shaft 304 through the rotary dynamic seal device 303. The rotary dynamic sealing device 303 is sleeved in the steel seat 302, in other words, the steel seat 302 and the driving unit 301 are connected through the rotary dynamic sealing device 303. And a sealing ring is arranged between the rotary dynamic sealing device 303 and the steel seat 302, so that the sealing effect is achieved.
The end surface of the first wall body 1 facing the second wall body 14 in the embodiment is provided with the heat insulating material 11. The end of the second wall 14 facing the first wall 1 is also provided with insulation 11. From this, can keep warm to main furnace, reduce thermal scattering and disappearing to can play the effect that separates the temperature to first side furnace and second side furnace, further reduce the temperature of first side furnace and second side furnace.
The furnace body includes along two side covers 5 that the first direction set up relatively, along two furnace gates 6 that the second direction set up relatively and along lid 4 and pedestal that the third direction set up relatively, lid 4, arbitrary one side cover 5 and arbitrary one all have the sealing washer in week side of furnace gate 6, so that the inside of furnace body can keep a sealed state to improve the inside gas tightness of furnace body. Any one furnace door 6 can be opened and closed relative to the furnace body, and the first direction, the second direction and the third direction are mutually vertical. When the furnace body of the embodiment discharges materials, the furnace door 6 at the discharging end is opened. When the material is taken, the furnace door 6 of the material taking end is opened. The sealing state can be kept through the inside of the furnace body, so that the vacuum state can be quickly formed in the furnace body, and the vacuum state can be continuously kept.
The cover body 4 is arranged on one side of the first heating device, which is back to the end face of the transmission device, the base body is arranged on one side of the second heating device, which is back to the end face of the transmission device, and cooling liquid flows in the cover body 4 and the base body. Through setting up the inside coolant liquid that flows of lid 4, reduced lid 4 steel construction because the deformation that high temperature arouses and the protection sets up the sealing washer in lid 4 week side to its structural strength and sealed effect have been guaranteed. The cooling liquid flows in the seat body, so that the deformation of the steel structure of the seat body caused by high temperature is reduced, and the structural strength of the steel structure of the seat body is ensured.
The end face of the cover body 4 facing the first heating device is provided with a heat insulation material 11, and the end face of the base body facing the second heating device is also provided with a heat insulation material 11. From this, can keep warm to main furnace, reduce thermal scattering and disappearing to can play the effect that separates the temperature to lid 4 and pedestal, reduce the temperature of lid 4 and pedestal, further reduce the deformation.
At least one pipeline 401 is arranged on the cover body 4, the outlet end of any one of the pipelines 401 is positioned on the end face, back to the first heating device, of the cover body 4, and the inlet end of any one of the pipelines 401 is communicated with the interior of the furnace body. In other words, the inlet end of any one of the pipes 401 passes through the cover 4 and the heat insulating material 11 on the cover 4, and communicates with the inside of the furnace body. The outlet end of the pipeline 401 is communicated with a vacuum device, so that the vacuum device can vacuumize the interior of the furnace body. The cover 4 is further provided with a vacuum degree measuring system 403 communicated with the interior of the furnace body for detecting the pressure value in the furnace body in real time.
The cover body 4 is provided with a temperature measuring port 402 penetrating through the thickness direction of the cover body, and vacuum glass is arranged at the temperature measuring port 402 so as to seal the temperature measuring port 402. The vacuum glass is arranged on the end face of the cover body 4, which is back to the first heating device. Through setting up temperature measurement mouth 402, can stretch into the inside of furnace body with temperature measuring device from temperature measurement mouth 402 department, and then the inside temperature of test furnace body to temperature in the real time monitoring furnace body. The temperature measuring port 402 of the embodiment is arranged between two adjacent first heating elements 2 in the first heating device, so that the temperature measuring device can monitor the temperature of the material 10 in real time through the first heating device.
The first wall 1 has a first side wall and a second side wall opposite to each other along the second direction, a plurality of first partition boards 101 and a plurality of second partition boards 102 are arranged inside the first wall 1, and the plurality of first partition boards 101 and the plurality of second partition boards 102 are arranged at intervals. Two opposite ends of any one of the first partition boards 101 along the first direction are connected to the first wall 1, and two opposite ends of any one of the second partition boards 102 along the first direction are connected to the first wall 1. Any one of the first partition boards 101 is connected with the first side wall of the first wall 1, a first preset distance is reserved between any one of the first partition boards 101 and the second side wall of the first wall 1, any one of the second partition boards 102 is connected with the second side wall of the first wall 1, and a second preset distance is reserved between any one of the second partition boards 102 and the first side wall of the first wall 1. Through setting up a plurality of first baffles 101 and a plurality of second baffles 102 for a plurality of coolant channels are separated into in first wall 1' S inside, and the coolant liquid in every coolant channel circulates between the second lateral wall of first baffle 101 and first wall 1, and can circulate between the first lateral wall of second baffle 102 and first wall 1, and from this, the coolant liquid is crooked "S" type in the flow direction of first wall 1, makes the distribution of coolant liquid in first wall 1 more even, and then improves the cooling effect. The interior of the first wall body 1 is communicated with the outside through a pipeline so as to inject cooling liquid into the first wall body 1.
The structure inside the second wall 14 is the same as the structure inside the first wall 1, and therefore, the flowing direction of the cooling liquid in the second wall 14 is in a bent S shape, so that the distribution of the cooling liquid in the second wall 14 is more uniform, and the cooling effect is further improved.
A plurality of third partition plates and a plurality of fourth partition plates are provided inside the lid body 4. The cover 4 has a third side wall and a fourth side wall oppositely disposed in the second direction. A plurality of third partition plates and a plurality of fourth partition plates are arranged at intervals inside the lid body 4. Both ends that arbitrary third baffle is relative along the third direction all are connected with lid 4, and both ends that arbitrary fourth baffle is relative along the third direction all are connected with lid 4. Any one third partition board is connected with the third side wall of the cover 4, and a third preset distance is formed between any one third partition board and the fourth side wall of the cover 4. Any one of the fourth partition boards is connected to the fourth side wall of the cover 4, and a fourth preset distance is provided between any one of the fourth partition boards and the third side wall of the cover 4. Thereby, the flow direction of the coolant in the lid 4 is curved "S" shape, so that the coolant is more uniformly distributed in the lid 4. The internal structure of the base 12 is the same as that of the lid 4, and the flow direction of the coolant inside the base 12 is also curved in an "S" shape.
Be equipped with on first wall body 1 and get material mouth 13, get material mouth 13 and follow first direction run through in proper order rather than corresponding the wall body with insulation material 11 on the wall body, material 10 has been placed on the transmission device, get material mouth 13 and correspond to material 10 sets up, in order to follow get the touching of material mouth 13 material 10. Specifically, the material 10 is located above the conveying device, and the material taking port 13 is provided between the first heating device and the material 10. The discharge opening 13 extends in the second direction. When the material 10 is on the conveying device and can not advance or retreat, the material 10 in the main hearth can be taken out from the side by opening the material taking port 13.
A baffle plate is arranged on the material taking port 13 and used for sealing the material taking port 13. The end surface of the baffle plate facing the main hearth is also provided with a heat insulation material 11.
The furnace comprises at least one first thermocouple 7 and at least one second thermocouple 8. The measuring point of any one first thermocouple 7 is arranged close to the first heating device, and the measuring point of any one second thermocouple 8 is arranged close to the second heating device.
The first thermocouple 7 is mounted on the cover 4, and the testing end of the first thermocouple 7 penetrates through the cover 4 and the thermal insulation material 11 on the cover 4, so that the testing point of the first thermocouple 7 is close to the first heating device. The second thermocouple 8 is installed on the seat body, and the testing end of the second thermocouple 8 penetrates through the heat insulation materials 11 on the seat body and the seat body, so that the testing point of the second thermocouple 8 is close to the second heating device. Therefore, the first thermocouple 7 and the second thermocouple 8 can test the temperatures of the first heating device and the second heating device in real time, so that the temperatures of the two first heating devices and the second heating device can be conveniently controlled.
The heating furnaces in this embodiment can be connected in series to form a continuous high temperature furnace. The high-temperature furnace comprises a plurality of heating furnaces which are sequentially arranged, wherein a conveying device in one heating furnace is arranged at the downstream of the conveying device in the adjacent heating furnace, so that the material 10 can circulate in the plurality of heating furnaces. Specifically, the furnace doors 6 of the plurality of heating furnaces are opened, and the plurality of heating furnaces are communicated through the opened furnace doors 6 and are connected in series to form a continuous high-temperature furnace, so that the simultaneous production of a plurality of furnace bodies is realized, and the production efficiency is improved.
The furnace body of the embodiment is of a square box structure, so that the height and the space occupancy rate of the furnace body can be greatly reduced. The first heating device and the second heating device are respectively arranged above and below the conveying device, so that the materials 10 can be uniformly heated in the heating process in the main hearth. Through setting up main furnace, first side furnace and second side furnace to set up inside flow and have first wall 1 and the second wall 14 of coolant liquid, can prevent that the heat from main furnace transmits first side furnace and second side furnace, guarantee that first side furnace and second side furnace are in under the low temperature environment, can make first transmission and second transmission normal operating, and can protect first heating device and second heating device's circuit 201.
The principle and the implementation mode of the invention are explained by applying specific embodiments in the invention, and the description of the embodiments is only used for helping to understand the technical scheme and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.

Claims (10)

1. A heating furnace, characterized by comprising:
a furnace body;
the cooling device comprises a first wall body and a second wall body, wherein the first wall body and the second wall body are oppositely arranged in the furnace body along a first direction, and cooling liquid flows in the first wall body;
the first heating device comprises a plurality of first heating elements which are arranged at intervals along a second direction, any one first heating element is arranged between the first wall body and the second wall body, and a terminal of any one first heating element penetrates through the first wall body; and
the conveying device can convey materials along the second direction and comprises at least one driving roller, any one driving roller is arranged between the first wall body and the second wall body, and any one driving roller penetrates out of the first wall body to be in transmission connection with the first driving device;
wherein the first direction is not parallel to or coincident with the second direction.
2. The heating furnace according to claim 1, wherein a coolant is provided in the second wall.
3. The heating furnace according to claim 1, wherein an end surface of the first wall facing the second wall has a heat insulating material.
4. The heating furnace according to claim 1, wherein the furnace body comprises two side covers oppositely arranged along the first direction, two furnace doors oppositely arranged along the second direction, and a cover body and a base body oppositely arranged along a third direction, wherein the cover body, any one of the side covers and any one of the furnace doors are provided with sealing rings on the peripheral sides so that the inside of the furnace body can be kept in a sealing state, any one of the furnace doors can be opened and closed relative to the furnace body, and the first direction, the second direction and the third direction are perpendicular to each other.
5. The heating furnace according to claim 4, wherein the inside of the cover and the inside of the base both flow cooling liquid, the end surface of the cover facing the first heating unit has a heat insulating material, and the end surface of the base facing the transporting unit also has a heat insulating material.
6. The heating furnace according to claim 4, wherein the cover is provided with at least one pipe, an outlet end of any one of the pipes is located on an end surface of the cover facing away from the first heating device, an inlet end of any one of the pipes is communicated with the interior of the furnace body, and an outlet end of the pipe is communicated with the vacuum device.
7. The heating furnace according to claim 4, wherein the cover has a temperature measuring hole extending through the thickness thereof, the temperature measuring hole has vacuum glass for sealing the temperature measuring hole, and a sealing ring is provided between the vacuum glass and the cover, and the vacuum glass is provided on an end surface of the cover facing away from the first heating device.
8. The heating furnace according to claim 1, wherein the first wall has a first side wall and a second side wall opposite to each other in the second direction, the first wall is provided therein with a plurality of first partitions and a plurality of second partitions, the plurality of first partitions and the plurality of second partitions are arranged at intervals, both ends of any one of the first partitions and any one of the second partitions opposite to each other in the first direction are connected to the first wall, any one of the first partitions is connected to the first side wall of the first wall and any one of the first partitions has a first predetermined distance from the second side wall of the first wall, and any one of the second partitions is connected to the second side wall of the first wall and any one of the second partitions has a second predetermined distance from the first side wall of the first wall.
9. The heating furnace according to claim 1, wherein a material taking port is formed in the first wall, the material taking port sequentially penetrates through the first wall and the heat insulating material on the first wall along the first direction, the material is placed on the conveying device, and the material taking port is arranged corresponding to the material so as to be capable of touching the material from the material taking port.
10. The heater according to claim 1, wherein said heater comprises at least one first thermocouple, and a measurement point of any one of said first thermocouples is disposed adjacent to said first heating means.
CN202110811162.3A 2021-07-19 2021-07-19 Heating furnace Pending CN115634983A (en)

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PCT/CN2022/105874 WO2023001062A1 (en) 2021-07-19 2022-07-15 Heating furnace

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DE3335976A1 (en) * 1983-08-09 1985-02-21 Steinfurter Eisenwerk GmbH, 4430 Steinfurt Water-cooled wall element
IT1220312B (en) * 1988-03-15 1990-06-15 Mouva Matrix Srl OVEN WITH CONTINUOUS FEEDING OF THE PIECES FOR THE SINTERING OF PRESSED METAL POWDERS
JP4938410B2 (en) * 2006-10-24 2012-05-23 関東冶金工業株式会社 Continuous furnace for brazing aluminum products
CN202081149U (en) * 2011-04-21 2011-12-21 中冶京诚工程技术有限公司 Heating furnace wall structure with vaporization cooling wall
CN206486576U (en) * 2017-01-18 2017-09-12 浙江金盾压力容器有限公司 A kind of billet heating walking beam furnace
CN208933429U (en) * 2018-03-20 2019-06-04 周思妍 A kind of vacuum furnace
CN213020971U (en) * 2020-09-15 2021-04-20 辽宁高铁轨道交通装备制造有限公司 Energy-saving electric heating furnace for rolling steel

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