CN113048784B - Aluminum bar heating furnace - Google Patents

Aluminum bar heating furnace Download PDF

Info

Publication number
CN113048784B
CN113048784B CN202110383201.4A CN202110383201A CN113048784B CN 113048784 B CN113048784 B CN 113048784B CN 202110383201 A CN202110383201 A CN 202110383201A CN 113048784 B CN113048784 B CN 113048784B
Authority
CN
China
Prior art keywords
cavity
furnace body
heating
communicated
wall
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.)
Active
Application number
CN202110383201.4A
Other languages
Chinese (zh)
Other versions
CN113048784A (en
Inventor
曹威
杨文琪
杨伏丝
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.)
Guangdong Yan Aluminum Co ltd
Original Assignee
Guangdong Yan Aluminum 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 Guangdong Yan Aluminum Co ltd filed Critical Guangdong Yan Aluminum Co ltd
Priority to CN202110383201.4A priority Critical patent/CN113048784B/en
Publication of CN113048784A publication Critical patent/CN113048784A/en
Application granted granted Critical
Publication of CN113048784B publication Critical patent/CN113048784B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • F27B9/06—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity heated without contact between combustion gases and charge; electrically heated
    • F27B9/068—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity heated without contact between combustion gases and charge; electrically heated heated by radiant tubes, the tube being heated by a hot medium, e.g. hot gases
    • 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
    • F27B9/12—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity with special arrangements for preheating or cooling the charge
    • 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
    • F27B9/2407—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 the conveyor being constituted by rollers (roller hearth furnace)
    • F27B9/2423—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 the conveyor being constituted by rollers (roller hearth furnace) the charge rotating about an axis parallel to the axis of advancement of the charge
    • 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
    • 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
    • F27B9/36—Arrangements of heating devices
    • 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
    • F27B9/12—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity with special arrangements for preheating or cooling the charge
    • F27B2009/122—Preheating
    • 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
    • F27B9/36—Arrangements of heating devices
    • F27B2009/3638—Heaters located above and under the track
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27M—INDEXING SCHEME RELATING TO ASPECTS OF THE CHARGES OR FURNACES, KILNS, OVENS OR RETORTS
    • F27M2001/00—Composition, conformation or state of the charge
    • F27M2001/01—Charges containing mainly non-ferrous metals
    • F27M2001/012—Aluminium
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency

Abstract

The invention provides an aluminum bar heating furnace, which comprises a furnace body; a feeding port is formed in one end of the furnace body, and a discharging port is formed in the other end of the furnace body; a conveying assembly and a heating assembly for conveying the aluminum bars are arranged in the furnace body; the conveying assembly comprises a plurality of conveying rollers which are horizontally arranged at intervals, and two ends of each conveying roller are rotatably connected with the side wall of the furnace body; the heating assembly comprises a plurality of gas nozzles and a plurality of heat conducting coils; the gas nozzles are respectively arranged at the upper end and the lower end of the inner wall of the furnace body, one end of each gas nozzle is communicated with the hearth of the furnace body, and the other end of each gas nozzle is communicated with a gas pipeline; the heat-conducting coils are uniformly distributed around the inner wall of the furnace body; the temperature of each area inside the furnace body of the aluminum bar heating furnace is uniform, and the aluminum bar is heated uniformly; meanwhile, the heating efficiency is high, and the practicability is good.

Description

Aluminum bar heating furnace
Technical Field
The invention relates to the field of aluminum profile processing equipment, in particular to an aluminum bar heating furnace.
Background
The existing aluminum bar heating furnace mainly heats air in a hearth through a burner at the upper part of the hearth and utilizes hot air to heat an aluminum bar, so that the aluminum bar in the heating furnace is heated to a set temperature and is convenient for extrusion molding; the heating mode not only easily causes the temperature at the bottom of the aluminum bar to be lower, but also causes the condition that the quality of an extruded product is influenced because the aluminum bar is heated unevenly; meanwhile, the aluminum bar is long in heating time and low in energy utilization rate, so that the production energy consumption is high and the efficiency is low; therefore, the aluminum bar heating furnace which can uniformly heat the aluminum bar and improve the heating efficiency is a problem which is urgently needed to be solved in the industry.
Disclosure of Invention
Based on the above, in order to solve the problems of uneven heating and low heating efficiency of the aluminum bar, the invention provides an aluminum bar heating furnace, which has the following specific technical scheme:
an aluminum bar heating furnace comprises a furnace body; a feeding port is formed in one end of the furnace body, and a discharging port is formed in the other end of the furnace body; a conveying assembly and a heating assembly for conveying the aluminum bars are arranged in the furnace body; the conveying assembly comprises a plurality of conveying rollers which are horizontally arranged at intervals, and two ends of each conveying roller are rotationally connected with the side wall of the furnace body; the heating assembly comprises a plurality of gas nozzles and a plurality of heat conducting coils; the gas nozzles are respectively arranged at the upper end and the lower end of the inner wall of the furnace body, one end of each gas nozzle is communicated with the hearth of the furnace body, and the other end of each gas nozzle is communicated with a gas pipeline; the heat-conducting coils are uniformly distributed around the inner wall of the furnace body.
The aluminum bar heating furnace heats the aluminum bar through the gas nozzles positioned at the upper end and the lower end of the inner wall of the furnace body, so that the upper end and the lower end of the aluminum bar are heated uniformly; meanwhile, the heat conducting coils arranged around the inner wall of the furnace body effectively transfer heat, so that the temperature distribution of each area in the furnace body is uniform, and the aluminum bar is uniformly heated; meanwhile, the heat conducting coil not only improves the heat transmission efficiency, but also improves the aluminum bar heating efficiency; moreover, the heat conducting coil reduces the dissipation of heat inside the furnace body, improves the heat preservation effect and the energy utilization rate of the furnace body, and has good practicability.
Furthermore, the gas nozzles at the upper end and the lower end of the inner wall of the furnace body are arranged in a staggered mode at intervals.
Furthermore, the inner wall of the furnace body is provided with a heat-insulating coating.
Further, the furnace body comprises a preheating cavity, a heating cavity and a soaking cavity which are arranged in sequence; one end of the heating cavity is communicated with the preheating cavity, and the other end of the heating cavity is communicated with the soaking cavity; the feed inlet is formed in the side wall of the preheating cavity, which is parallel to the conveying direction of the conveying roller; the discharge port is arranged on the side wall of the heat equalizing cavity parallel to the conveying direction of the conveying roller.
Furthermore, a plurality of first superheated steam nozzles are arranged at the communication part of the preheating cavity and the heating cavity; the first superheated steam nozzles are uniformly distributed around the inner wall of the furnace body, and the nozzles of the first superheated steam nozzles face to the center of the communication part.
Furthermore, a plurality of second superheated steam nozzles are arranged at the connecting positions of the heating cavity and the heat equalizing cavity; the plurality of second superheated steam nozzles are uniformly distributed around the inner wall of the furnace body, and the nozzles of the second superheated steam nozzles face to the center of the connecting part.
Furthermore, a resonant cavity is arranged between the inner wall and the outer wall of the furnace body; the resonant cavity is filled with a liquid medium; a converter is arranged at the bottom end of the resonant cavity; a heating body is arranged in the converter.
Furthermore, a waste heat insulation cavity is also arranged between the inner wall and the outer wall of the furnace body; a first flue gas pipeline, a second flue gas pipeline and a third flue gas pipeline are arranged in the waste heat insulation cavity; one end of the first flue gas pipeline is communicated with the soaking cavity, and the other end of the first flue gas pipeline is communicated with the heating cavity; a first fan is arranged in the first flue gas pipeline; one end of the second flue gas pipeline is communicated with the heating cavity, and the other end of the second flue gas pipeline is communicated with the preheating cavity; a second fan is arranged in the second flue gas pipeline; one end of the third flue gas pipeline is communicated with the preheating cavity, and the other end of the third flue gas pipeline is communicated with the outside; and a third fan is arranged in the third flue gas pipeline.
Furthermore, an air duct is arranged between the inner wall and the outer wall of the furnace body; one end of the air duct is communicated with the soaking cavity, and the other end of the air duct is communicated with a container for storing inert gas; and a fourth fan is arranged in the ventilation pipeline.
Furthermore, the furnace body is also provided with a pushing assembly; the pushing assembly and the discharge hole are positioned in the same radial direction of the furnace body and are arranged oppositely; the pushing assembly comprises a pushing cylinder and a pushing plate; one end of the pushing cylinder is connected with the inner side wall of the furnace body, and the other end of the pushing cylinder is connected with the push plate.
Drawings
The invention will be further understood from the following description in conjunction with the accompanying drawings. The components in the figures are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the embodiments. Like reference numerals designate corresponding parts throughout the different views.
FIG. 1 is a schematic structural view of an aluminum bar heating furnace according to one embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of an aluminum bar heating furnace according to one embodiment of the present invention;
FIG. 3 is a second schematic sectional view of an aluminum bar heating furnace according to one embodiment of the present invention;
fig. 4 is an enlarged schematic view at a in fig. 2.
Description of the reference numerals: 1. a furnace body; 2. a feeding port; 3. a discharge port; 4. a conveying roller; 5. a gas nozzle; 6. a heat conductive coil; 7. a preheating chamber; 8. a heating chamber; 9. a soaking cavity; 10. a container; 11. a pressure regulator; 12. a resonant cavity; 13. a liquid medium; 14. a converter; 15. a heating element; 16. a waste heat insulation cavity; 17. a first flue gas duct; 18. a second flue gas duct; 19. a third flue gas duct; 20. an air duct; 21. a first fan; 22. a second fan; 23. a third fan; 24. a fourth fan; 25. a push cylinder; 26. a push plate.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to embodiments thereof. It should be understood that the detailed description and specific examples, while indicating the scope of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The terms "first" and "second" used herein do not denote any particular order or quantity, but rather are used to distinguish one element from another.
As shown in fig. 1 to 4, an aluminum rod heating furnace according to an embodiment of the present invention includes a furnace body 1; a feeding port 2 is formed at one end of the furnace body 1, and a discharging port 3 is formed at the other end of the furnace body 1; a conveying assembly and a heating assembly for conveying aluminum bars are arranged in the furnace body 1; the conveying assembly comprises a plurality of conveying rollers 4 which are horizontally arranged at intervals, and two ends of each conveying roller 4 are rotatably connected with the side wall of the furnace body 1; the heating assembly comprises a plurality of gas nozzles 5 and a plurality of heat conducting coils 6; the gas nozzles 5 are respectively arranged at the upper end and the lower end of the inner wall of the furnace body 1, one end of each gas nozzle 5 is communicated with the hearth of the furnace body 1, and the other end of each gas nozzle 5 is communicated with a gas pipeline; the heat conducting coils 6 are uniformly distributed around the inner wall of the furnace body 1.
The aluminum bar heating furnace heats the aluminum bar through the gas nozzles 5 positioned at the upper end and the lower end of the inner wall of the furnace body 1, so that the upper end and the lower end of the aluminum bar are heated uniformly; meanwhile, the heat conducting coil 6 arranged around the inner wall of the furnace body 1 effectively transfers heat, so that the temperature distribution of each area in the furnace body 1 is uniform, and the aluminum bar is uniformly heated; meanwhile, the heat conducting coil 6 not only improves the heat transmission efficiency, but also improves the aluminum bar heating efficiency; moreover, the heat conducting coil 6 reduces the dissipation of heat inside the furnace body 1, improves the heat preservation effect and the energy utilization rate of the furnace body 1, and has good practicability.
In one embodiment, the gas nozzles 5 at the upper and lower ends of the inner wall of the furnace body 1 are arranged alternately.
Specifically, the gas nozzles 5 which are staggered up and down not only enable gas and air to be mixed uniformly, but also enable the gas and the air to be combusted fully; meanwhile, the generated hot air forms rotational flow after meeting and forms a circulating wind direction, so that an even heating environment is formed inside the furnace body 1, and the heating efficiency of the aluminum bar is improved.
In one embodiment, a plurality of air nozzles are arranged at the upper end and the lower end of the inner wall of the furnace body 1, one end of each air nozzle is communicated with the furnace chamber of the furnace body 1, and the other end of each air nozzle is communicated with an air pipeline.
In one embodiment, the gas nozzles 5 at the top end of the inner wall of the furnace body 1 are arranged alternately with the air nozzles; the gas nozzles 5 and the air nozzles at the bottom end of the inner wall of the furnace body 1 are arranged in a staggered mode at intervals.
In one embodiment, the inner wall of the furnace body 1 is provided with a heat-insulating coating.
Specifically, the heat preservation coating effectively reduces the heat loss of the furnace body 1 and improves the heat preservation effect of the furnace body 1; meanwhile, the heat-insulating coating is an existing product and can be directly purchased and obtained through the market, and the description is omitted.
In one embodiment, the heat conducting coil 6 is a ceramic coil.
Specifically, the ceramic coil has good heat conduction, insulation and high temperature resistance, and can meet the temperature requirement of the aluminum bar heating furnace.
In one embodiment, the furnace body 1 comprises a preheating cavity 7, a heating cavity 8 and a soaking cavity 9 which are arranged in sequence; one end of the heating cavity 8 is communicated with the preheating cavity 7, and the other end of the heating cavity 8 is communicated with the heat equalizing cavity 9; the feeding port 2 is arranged on the side wall of the preheating cavity 7 parallel to the conveying direction of the conveying roller 4; the discharge port 3 is arranged on the side wall of the heat equalizing cavity 9 parallel to the conveying direction of the conveying roller 4.
Specifically, the feeding port 2 and the discharging port 3 are both positioned on the same side wall of the furnace body 1; a feeding mechanism matched with the feeding port 2 is arranged on one side of the furnace body 1; a discharging mechanism matched with the discharging port 3 is arranged on the same side of the furnace body 1; through the design, the aluminum bar heating furnace reasonably utilizes the field, and the occupied area of the field is effectively reduced.
In one embodiment, a plurality of first superheated steam nozzles are arranged at the communication part of the preheating cavity 7 and the heating cavity 8; the plurality of first superheated steam nozzles are uniformly distributed around the inner wall of the furnace body 1, and the spray openings of the first superheated steam nozzles face to the center of the communication part.
In one embodiment, a plurality of second superheated steam nozzles are arranged at the connection part of the heating cavity 8 and the soaking cavity 9; the plurality of second superheated steam nozzles are uniformly distributed around the inner wall of the furnace body 1, and the nozzles of the second superheated steam nozzles face to the center of the connecting part.
Specifically, the first superheated steam nozzle and the second superheated steam nozzle continuously spray superheated steam, and the superheated steam forms relatively sealed spaces in the preheating cavity 7, the heating cavity 8 and the soaking cavity 9 while not interfering with the transmission of aluminum bars, so that heat loss caused by air circulation among the cavities is prevented; meanwhile, the superheated steam further heats the aluminum bar, and the heating efficiency of the aluminum bar is improved.
In one embodiment, a resonant cavity 12 is arranged between the inner wall and the outer wall of the furnace body 1; the resonant cavity 12 is filled with a liquid medium 13; the bottom end of the resonant cavity 12 is provided with a converter 14; the converter 14 is provided with a heating element 15.
In one embodiment, the liquid medium 13 is an alcohol or an ether.
In one embodiment, the transducer 14 is tubular.
Specifically, the heating element 15 is fittingly disposed in the converter 14; the heating principle of the converter 14 is: the heating element 15 is electrified and heats the converter 14, the converter 14 emits radiation waves with the wavelength close to the optimal absorption wavelength of the liquid medium 13, so that the liquid medium 13 generates molecular resonance, the temperature of the liquid medium 13 is increased and the temperature inside the furnace body 1 is increased, and thus the heating efficiency of the aluminum bar is improved and the heat loss of the furnace body 1 is reduced.
In one embodiment, the heating body 15 is made by winding a heating wire and is provided with a heat-resistant insulating layer.
In one embodiment, the transducer 14 is made of a quartz material.
In one embodiment, a pressure regulator 11 and a buffer tube are disposed in the resonant cavity 12;
one end of the buffer tube is communicated with the pressure regulator 11, and the other end of the buffer tube is communicated with the resonant cavity 12; an adjusting cavity is arranged in the pressure regulator 11; an electromagnet is arranged on one side of the adjusting cavity; the other side of the adjusting cavity is provided with a plurality of buffer blocks, and the buffer blocks are connected with the adjusting cavity in a sliding manner; one end of the buffer block, which is close to the electromagnet, is connected with the electromagnet through a first buffer spring; two adjacent buffer blocks are connected through a second buffer spring.
Specifically, the pressure regulator 11 can buffer and decompose the pressure generated by molecular resonance, so as to ensure the stable pressure in the resonant cavity 12 and prevent bursting;
the principle is as follows: the liquid medium 13 is heated and enters the pressure regulator 11 through the buffer tube, the pressure regulator 11 buffers the pressure of the liquid medium 13 through the first buffer spring and the second buffer spring, and the liquid medium 13 flows back and forth between the buffer block and the electromagnet and between the buffer block and the buffer block, so that the pressure is buffered, the balance of molecular resonance is maintained, and the safety of the molecular resonance is improved.
In one embodiment, the resonance chamber 12 comprises a first resonance chamber located at the periphery of the preheating chamber 7, a second resonance chamber located at the periphery of the heating chamber 8, and a third resonance chamber located at the periphery of the soaking chamber 9; the first resonance chamber, the second resonance chamber and the third resonance chamber are independent and are not communicated with each other; the converter 14 and the heating element 15 are arranged in the first resonance chamber, the second resonance chamber and the third resonance chamber, and the liquid medium 13 is filled in the first resonance chamber, the second resonance chamber and the third resonance chamber.
Specifically, through the arrangement, the temperature of the liquid medium 13 can be reasonably adjusted in each resonance chamber according to the condition of each cavity; meanwhile, the mutual circulation among the liquid mediums 13 is reduced, so that the heat loss is reduced.
In one embodiment, a waste heat insulation cavity 16 is further arranged between the inner wall and the outer wall of the furnace body 1; a first flue gas pipeline 17, a second flue gas pipeline 18 and a third flue gas pipeline 19 are arranged in the waste heat insulation cavity 16; one end of the first flue gas pipeline 17 is communicated with the heat equalizing cavity 9, and the other end of the first flue gas pipeline 17 is communicated with the heating cavity 8; a first fan 21 is arranged in the first flue gas pipeline 17; one end of the second flue gas pipeline 18 is communicated with the heating cavity 8, and the other end of the second flue gas pipeline 18 is communicated with the preheating cavity 7; a second fan 22 is arranged in the second flue gas pipeline 18; one end of the third flue gas pipeline 19 is communicated with the preheating cavity 7, and the other end of the third flue gas pipeline 19 is communicated with the outside; a third fan 23 is arranged in the third flue gas pipeline 19.
Specifically, the aluminum bar heating furnace fully utilizes the waste heat of the flue gas by adopting a gradient utilization mode of the waste heat of the flue gas; the first flue gas in the heat equalizing cavity 9 enters the heating cavity 8 through the first flue gas pipeline 17, and the first flue gas exchanges heat with the air in the heating cavity 8 to heat the air; the second flue gas in the heating cavity 8 enters the preheating cavity 7 through the second flue gas pipeline 18, and the second flue gas exchanges heat with the air in the preheating cavity 7, so that the temperature inside the preheating cavity 7 is increased; finally, the exhaust gas is discharged to the outside through the third flue gas duct 19; through a layer-by-layer waste heat utilization mode, the flue gas in the furnace body 1 is fully utilized, and the waste of energy is reduced.
In one embodiment, a ventilation pipeline 20 is further arranged between the inner wall and the outer wall of the furnace body 1; one end of the vent pipeline 20 is communicated with the soaking cavity 9, and the other end of the vent pipeline 20 is communicated with a container 10 for storing inert gas; a fourth fan 24 is arranged in the ventilation duct 20.
Specifically, the preheating cavity 7 discharges the waste gas to the outside through the third flue gas pipeline 19, so that a micro negative pressure is present in the preheating cavity 7, more air enters the preheating cavity 7, and the combustion is more sufficient; the inert gas is input into the heat equalizing cavity 9 through the ventilating pipeline 20, so that the heat equalizing cavity 9 is in micro-positive pressure, external air is not easy to enter the heat equalizing cavity 9, and heat loss in the process of aluminum bar transmission is reduced.
In one embodiment, the furnace body 1 is further provided with a plurality of pressure sensors; the pressure sensors are respectively arranged in the preheating cavity 7, the heating cavity 8 and the soaking cavity 9.
Specifically, pressure sensor is right the pressure of each cavity is monitored in the furnace body 1, makes preheat the chamber 7 with the heating chamber 8 is in little negative pressure state all the time, the samming chamber 9 is in little negative pressure state in earlier stage, when the aluminium bar heaies up to the settlement temperature, thereby through inert gas's input makes the samming chamber 9 transfers to the state of pressure-fired.
In one embodiment, the furnace body 1 is further provided with a pushing assembly; the pushing assembly and the discharge hole 3 are positioned in the same radial direction of the furnace body 1 and are oppositely arranged; the pushing assembly comprises a pushing cylinder 25 and a pushing plate 26; one end of the pushing cylinder 25 is connected with the inner side wall of the furnace body 1, and the other end of the pushing cylinder 25 is connected with the push plate 26.
Specifically, when the aluminum bar is conveyed to a set position, the pushing assembly pushes the aluminum bar into the discharging mechanism from the discharging port 3, so that the heating process of the aluminum bar is completed.
In one embodiment, the feeding port 2 is provided with a first sealing door; and the discharge port 3 is provided with a second sealing door.
Specifically, each sealing door increases the air tightness of the aluminum bar heating furnace, and effectively reduces heat loss; simultaneously, pan feeding mouth 2 with discharge gate 3 all can only hold an aluminium bar and pass, through reducing aluminium bar heating furnace and external area of contact to reduce thermal scattering and disappearing when the furnace body 1 business turn over material.
In one embodiment, the outer wall of the furnace body 1 is provided with a heat insulating material layer.
Specifically, the heat-insulating material layer is polycrystalline mullite fiber cotton, aluminum silicate fiber cotton or rock wool.
In one embodiment, the conveyor roller 4 has a length of 1 to 3 meters.
Specifically, the sizes of the conveying rollers 4 and the furnace body 1 are reasonably selected and adjusted according to the length of the aluminum bar to be processed actually, so that the production requirements are met.
The using process is as follows:
opening the first sealing door, allowing the aluminum bars to sequentially enter the preheating cavity 7 through the feeding port 2 under the action of the feeding mechanism, and driving the aluminum bars to be conveyed by the conveying roller 4, so that the aluminum bars are sequentially placed on the conveying roller 4 of the preheating cavity 7;
closing the first sealing door, and opening the gas nozzle and the first superheated steam nozzle, wherein the gas nozzle heats the air in the preheating cavity 7; the first superheated steam nozzle forms the preheating chamber 7 into a relatively closed chamber; starting the heating element 15, and generating heat by the liquid medium 13 through resonance; the aluminum bar is uniformly heated under the combined action of the waste heat air temperature, the heated air and the heated liquid medium 13;
when the aluminum bar reaches the set preheating temperature, the conveying roller 4 conveys the aluminum bar into the heating cavity 8, and the process is repeated;
when the aluminum bar reaches the set heating temperature, the conveying roller 4 conveys the aluminum bar into the soaking cavity 9, and the process is repeated;
when the aluminum bar reaches the set soaking temperature, the second sealing door is opened, the aluminum bar sequentially enters the discharging mechanism through the discharging port 3 under the combined action of the material pushing assembly and the conveying roller 4, and therefore the heating process of the aluminum bar is completed.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (1)

1. An aluminum bar heating furnace is characterized by comprising a furnace body;
a feeding port is formed in one end of the furnace body, and a discharging port is formed in the other end of the furnace body;
a conveying assembly and a heating assembly for conveying the aluminum bars are arranged in the furnace body;
the conveying assembly comprises a plurality of conveying rollers which are horizontally arranged at intervals, and two ends of each conveying roller are rotatably connected with the side wall of the furnace body;
the heating assembly comprises a plurality of gas nozzles and a plurality of heat conducting coils;
the gas nozzles are respectively arranged at the upper end and the lower end of the inner wall of the furnace body, one end of each gas nozzle is communicated with the hearth of the furnace body, and the other end of each gas nozzle is communicated with a gas pipeline;
the heat-conducting coils are uniformly distributed around the inner wall of the furnace body;
the gas nozzles at the upper end and the lower end of the inner wall of the furnace body are arranged in a staggered mode at intervals;
the inner wall of the furnace body is provided with a heat-insulating coating;
the furnace body comprises a preheating cavity, a heating cavity and a soaking cavity which are arranged in sequence;
one end of the heating cavity is communicated with the preheating cavity, and the other end of the heating cavity is communicated with the soaking cavity;
the feed inlet is formed in the side wall of the preheating cavity, which is parallel to the conveying direction of the conveying roller;
the discharge hole is formed in the side wall of the soaking cavity parallel to the conveying direction of the conveying roller;
a plurality of first superheated steam nozzles are arranged at the communication part of the preheating cavity and the heating cavity;
the first superheated steam nozzles are uniformly distributed around the inner wall of the furnace body, and the nozzles of the first superheated steam nozzles face to the center of the communication part;
a plurality of second superheated steam nozzles are arranged at the connecting positions of the heating cavity and the heat equalizing cavity;
the plurality of second superheated steam nozzles are uniformly distributed around the inner wall of the furnace body, and the nozzles of the second superheated steam nozzles face to the center of the connecting part;
a resonant cavity is arranged between the inner wall and the outer wall of the furnace body;
the resonant cavity is filled with a liquid medium;
a converter is arranged at the bottom end of the resonant cavity;
a heating body is arranged in the converter;
a waste heat insulation cavity is also arranged between the inner wall and the outer wall of the furnace body;
a first flue gas pipeline, a second flue gas pipeline and a third flue gas pipeline are arranged in the waste heat insulation cavity;
one end of the first flue gas pipeline is communicated with the soaking cavity, and the other end of the first flue gas pipeline is communicated with the heating cavity;
a first fan is arranged in the first flue gas pipeline;
one end of the second flue gas pipeline is communicated with the heating cavity, and the other end of the second flue gas pipeline is communicated with the preheating cavity;
a second fan is arranged in the second flue gas pipeline;
one end of the third flue gas pipeline is communicated with the preheating cavity, and the other end of the third flue gas pipeline is communicated with the outside;
a third fan is arranged in the third flue gas pipeline;
an air duct is also arranged between the inner wall and the outer wall of the furnace body;
one end of the air duct is communicated with the soaking cavity, and the other end of the air duct is communicated with a container for storing inert gas;
a fourth fan is arranged in the ventilation pipeline;
the furnace body is also provided with a pushing assembly;
the pushing assembly and the discharge hole are positioned in the same radial direction of the furnace body and are oppositely arranged;
the pushing assembly comprises a pushing cylinder and a pushing plate;
one end of the pushing cylinder is connected with the inner side wall of the furnace body, and the other end of the pushing cylinder is connected with the push plate;
a pressure regulator and a buffer tube are arranged in the resonant cavity;
one end of the buffer tube is communicated with the pressure regulator, and the other end of the buffer tube is communicated with the resonant cavity; a regulating cavity is arranged in the pressure regulator; an electromagnet is arranged on one side of the adjusting cavity; the other side of the adjusting cavity is provided with a plurality of buffer blocks, and the buffer blocks are connected with the adjusting cavity in a sliding manner; one end of the buffer block, which is close to the electromagnet, is connected with the electromagnet through a first buffer spring; two adjacent buffer blocks are connected through a second buffer spring;
the resonant cavities comprise a first resonant chamber positioned at the periphery of the preheating cavity, a second resonant chamber positioned at the periphery of the heating cavity and a third resonant chamber positioned at the periphery of the soaking cavity; the first resonance chamber, the second resonance chamber and the third resonance chamber are independent and are not communicated with each other; the converter and the heating element are arranged in the first resonance chamber, the second resonance chamber and the third resonance chamber, and the liquid medium is filled in the converter and the heating element.
CN202110383201.4A 2021-04-09 2021-04-09 Aluminum bar heating furnace Active CN113048784B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110383201.4A CN113048784B (en) 2021-04-09 2021-04-09 Aluminum bar heating furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110383201.4A CN113048784B (en) 2021-04-09 2021-04-09 Aluminum bar heating furnace

Publications (2)

Publication Number Publication Date
CN113048784A CN113048784A (en) 2021-06-29
CN113048784B true CN113048784B (en) 2023-04-07

Family

ID=76518953

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110383201.4A Active CN113048784B (en) 2021-04-09 2021-04-09 Aluminum bar heating furnace

Country Status (1)

Country Link
CN (1) CN113048784B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115149030B (en) * 2022-08-09 2023-05-02 广东佛燃科技有限公司 Gas electric heating device for solid oxide electric pile test

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203440235U (en) * 2013-08-28 2014-02-19 洛阳兰迪玻璃机器股份有限公司 Toughened glass heating furnace
CN104534868B (en) * 2014-10-31 2016-04-13 武汉钢铁(集团)公司 Heat stamping and shaping plate heating furnace
CN109746277A (en) * 2019-02-25 2019-05-14 佛山市朗盾铝加工设备有限公司 A kind of aluminium bar single rod furnace
CN109807191A (en) * 2019-03-21 2019-05-28 四川福蓉科技股份公司 A kind of heating means and its device of aluminium bar
CN212299918U (en) * 2020-03-20 2021-01-05 曲靖市首锋矿山配件有限公司 Double-energy-saving steel rolling heating furnace

Also Published As

Publication number Publication date
CN113048784A (en) 2021-06-29

Similar Documents

Publication Publication Date Title
CN113048784B (en) Aluminum bar heating furnace
CN104596283B (en) High-efficient and energy-saving aluminum rod mixing heating furnace
WO2020114171A1 (en) Dual-layer isothermal spheroidizing annealing heat treatment device for bearing steal bar pipe material
CN100513957C (en) Grain drying device
CN204005997U (en) Honeycomb fashion radiant tube
CN202885457U (en) Silver strip drying oven
CN204760405U (en) Annealing oxidation equipment
CN2869723Y (en) Novel multi-return-stroke drum heating apparatus
CN210952374U (en) Tunnel cave circulative cooling system
CN101220409A (en) Horizontal continuous unmuffled light annealing equipment of stainless steel band
CN214199654U (en) Flue gas internal circulation heating furnace
CN104542750A (en) Energy-saving hot air jet type chained oven
CN103629905A (en) Silver sheet drying furnace
CN210449755U (en) Heated air circulation formula heating chamber
CN209639261U (en) A kind of supercritical carbon dioxide working medium compact heating apparatus
CN202938656U (en) Heat exchange waste heat recovery device
CN206014667U (en) A kind of energy-saving annealing furnace
CN203128617U (en) Annealing high temperature furnace
CN106001129A (en) Heat preservation tunnel of continuous delivery hot pipe and heat preservation control method
CN206512252U (en) A kind of annealing furnace and annealing system
CN206244647U (en) A kind of pneumoelectric combination stove for producing basalt continuous fiber
CN217785795U (en) Multi-rod heating furnace
CN110024818A (en) A kind of continuous tunnel furnace
CN204665894U (en) Energy-saving rapid heating furnace
CN216205188U (en) Aluminum bar hybrid heating furnace

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant