CN106440774B - Closed preheating furnace for copper rod production and copper rod manufacturing method - Google Patents
Closed preheating furnace for copper rod production and copper rod manufacturing method Download PDFInfo
- Publication number
- CN106440774B CN106440774B CN201610685959.2A CN201610685959A CN106440774B CN 106440774 B CN106440774 B CN 106440774B CN 201610685959 A CN201610685959 A CN 201610685959A CN 106440774 B CN106440774 B CN 106440774B
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- combustion chamber
- copper material
- copper
- furnace
- burners
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 90
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 90
- 239000010949 copper Substances 0.000 title claims abstract description 90
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
- 238000002485 combustion reaction Methods 0.000 claims abstract description 64
- 239000000463 material Substances 0.000 claims abstract description 59
- 238000002844 melting Methods 0.000 claims abstract description 24
- 230000008018 melting Effects 0.000 claims abstract description 24
- 238000000034 method Methods 0.000 claims abstract description 11
- 238000003723 Smelting Methods 0.000 claims description 5
- 239000000919 ceramic Substances 0.000 claims description 4
- 239000000835 fiber Substances 0.000 claims description 4
- 239000011490 mineral wool Substances 0.000 claims description 4
- 238000005266 casting Methods 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 3
- 239000000446 fuel Substances 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000009826 distribution Methods 0.000 abstract description 2
- 238000010438 heat treatment Methods 0.000 description 4
- 238000003618 dip coating Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000010309 melting process Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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
- F27B9/14—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)
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B15/00—Obtaining copper
- C22B15/0026—Pyrometallurgy
- C22B15/0028—Smelting or converting
-
- 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
- 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
- F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
- F27B9/40—Arrangements of controlling or monitoring devices
-
- 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
- F27D13/00—Apparatus for preheating charges; Arrangements for preheating charges
-
- 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
- F27M2001/015—Copper
-
- 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
- F27M2001/15—Composition, conformation or state of the charge characterised by the form of the articles
- F27M2001/1539—Metallic articles
- F27M2001/1547—Elongated articles, e.g. beams, rails
-
- 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
- F27M2003/00—Type of treatment of the charge
- F27M2003/02—Preheating, e.g. in a laminating line
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
- Tunnel Furnaces (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The invention provides a closed preheating furnace for producing copper rods and a method for manufacturing the copper rods, wherein the preheating furnace comprises: the combustion chamber is internally provided with a plurality of burners for preheating the copper material; the connecting chamber is used for hermetically connecting the combustion chamber with the melting furnace; and the conveying device conveys the copper material into the combustion chamber and conveys the preheated copper material to the melting furnace. The invention adopts a closed type to convey the copper material, can effectively ensure the temperature in the furnace, leads the copper material to reach the requirement of 300 ℃, and reduces the heat energy loss; the crawler-type conveying belt in the prior art is changed into a roller-way conveying belt, so that the stress strength is increased, the deformation and the damage are not easy to occur, and the maintenance strength is saved; the position of the burner is changed, so that the heat energy distribution in the combustion chamber is more reasonable, and the heat efficiency is improved.
Description
Technical Field
The invention relates to the field of copper rod processing, in particular to a closed preheating furnace for copper rod production and a copper rod manufacturing method.
Background
The oxygen-free copper rod production line adopting the dip-coating forming method is characterized in that electrolytic copper materials are smelted, cast and rolled into rods, and then the rods are wound into rings, so that bright oxygen-free copper rods for electricians are produced. The preheating furnace of the oxygen-free copper rod production line of the dip-coating forming method is used for preheating and heating electrolytic copper and burning off attachments on the surface of the copper material. As shown in fig. 1, the preheating furnace 1 is composed of a furnace body 11, a combustion chamber 12 and a conveying crawler 13, the combustion chamber 12 is a key component of the preheating furnace and is composed of an insulating layer, a furnace shell, a burner nozzle and the like, wherein two main burners 14 are symmetrically arranged at an outlet of the furnace body, and two auxiliary burners 15 are arranged on two opposite side walls of the combustion chamber. Firstly, the copper material is moved onto a track of a preheating furnace by a feeding device, and at the position, the copper material freely falls onto the track, so that certain impact force is exerted on the track, and the loss of the service life of the track is serious. Secondly, the copper material is conveyed into the combustion chamber through the crawler, the copper material is conveyed to the main burner 14 and stops, after the copper material is heated by the two auxiliary burners 15 and the two main burners 14, the crawler starts to operate again, due to the fact that the heights of the melting furnace and the preheating furnace are different, the copper material needs to be conveyed into the melting furnace through an exposed suspension bridge, in the operation of the structural form, the crawler runs in a 360-degree circulation mode, 60% of the parts of the crawler are exposed outside the combustion chamber, heat loss is serious, and the temperature in the furnace is unstable. The track is made of stainless steel materials, is easy to deform and break in the heating process, and has a short service life.
Disclosure of Invention
The invention provides a closed preheating furnace for copper rod production and a copper rod manufacturing method, and aims to solve the problems of high heat loss, unreasonable arrangement of burners and low service life of a track of the existing preheating furnace for copper rod production.
According to one aspect of the invention, a closed preheating furnace for producing copper rods is provided, which comprises: the combustion chamber is internally provided with a plurality of burners for preheating the copper material; the connecting chamber is used for hermetically connecting the combustion chamber with the melting furnace; and the conveying device conveys the copper material into the combustion chamber and conveys the preheated copper material to the melting furnace.
Preferably, a plurality of burners are respectively arranged on two opposite side walls of the combustion chamber parallel to the copper material conveying direction.
Preferably, a plurality of burners are arranged on any side wall above the conveying device, and a plurality of burners are arranged on any side wall below the conveying device.
Preferably, the plurality of burners are arranged on any side wall below the conveying device, wherein one part of the plurality of burners is arranged near the inlet of the combustion chamber, and the other part of the plurality of burners is arranged near the outlet of the combustion chamber.
Preferably, the combustion chamber is internally attached by using rock wool and ceramic fiber felt.
Preferably, the preheating furnace is further provided with a temperature sensor for detecting the temperature of the copper material, and each burner adjusts the flow of the combustible gas according to the signal of the temperature sensor.
Preferably, the conveying device adjusts the feeding speed according to the signal of the temperature sensor.
Preferably, the conveying means is a roller row.
Preferably, the roller rows in the connecting chamber are inclined roller rows.
According to another aspect of the invention, a method for manufacturing a copper rod is provided, which comprises the steps of smelting, casting, rolling into a rod and forming a ring, wherein the smelting step utilizes the preheating furnace to perform the following steps: conveying the copper material to a combustion chamber by a conveying device; combustible gas is introduced into the burner to preheat the copper fuel in the combustion chamber; and the conveying device conveys the preheated copper material to the melting furnace in a closed manner through the connecting chamber.
Drawings
The above features and technical advantages of the present invention will become more apparent and readily appreciated from the following description of the embodiments thereof taken in conjunction with the accompanying drawings.
FIG. 1 is a schematic view showing a closed type preheating furnace for copper bar production in the prior art;
FIG. 2 is a schematic view showing a sealed preheating furnace for producing copper bars according to an embodiment of the present invention.
Detailed Description
An embodiment of a closed preheating furnace for copper rod production and a method for manufacturing a copper rod according to the present invention will be described below with reference to the accompanying drawings. Those of ordinary skill in the art will recognize that the described embodiments can be modified in various different ways, or combinations thereof, without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and not intended to limit the scope of the claims. Furthermore, in the present description, the drawings are not to scale and like reference numerals refer to like parts.
The invention provides a closed preheating furnace for producing copper rods, as shown in figure 2, the preheating furnace 2 mainly comprises a furnace body 21, a combustion chamber 22, burners 221, 222, 223, 224, 225 and 226, the preheating furnace 2 and a melting furnace 3 are arranged closely, and preheated copper materials need to be conveyed to the melting furnace 3 to be melted into copper liquid. In the prior art, a preheating furnace and a melting furnace are not connected in a sealing way, preheated copper materials enter the melting furnace through an exposed suspension bridge, and in the path, the copper materials are exposed outside, so that a large amount of heat is lost. In this embodiment, a connection chamber 23 is further provided adjacent to the outlet of the combustion chamber, said connection chamber 23 hermetically connecting the preheating furnace 2 and the melting furnace 3. Roller row 27 extends from the charging opening of preheating furnace 2 to the outlet of combustion chamber 22, and the copper material is conveyed into combustion chamber 22 through roller row 27. The side wall of the combustion chamber 22 is provided with a plurality of burners, combustible gas is introduced into the burners, and after ignition and combustion, the burners preheat and heat the copper material on the roller row 27, so that attachments on the surface of the copper material are burnt off. The incomplete combustion reaction (partial cracking), which is an exothermic reaction, is performed in the combustion chamber 22, so that the combustion furnace does not need external heat energy to continuously perform the reaction by the heat generated by its own combustion. The preheated copper material is conveyed to the connecting chamber 23 by the roller row 27, and because the inlet height of the melting furnace is lower than the outlet height of the preheating furnace, the roller row 27 in the connecting chamber 23 is arranged to form an inclined angle with the horizontal plane, and the preheated copper material enters the melting furnace 3 along the inclined roller row 27. The copper material is heated in the whole process of conveying, and the heat efficiency is high.
According to the invention, the combustion chamber structure of the preheating furnace is improved, the part of the closed connection chamber is increased, and the roller row is adopted to convey copper materials, so that the problems of large heat loss of the crawler belt and heat loss between the preheating furnace and the melting furnace in the prior art are solved. Effectively guarantee the stability of copper material transportation temperature, the copper material temperature can reach 300 ℃. The crawler-type conveying belt in the prior art is changed into a roller-way conveying belt, so that the stress strength is increased, the crawler-type conveying belt is not easy to deform and damage, and the maintenance strength is saved.
A plurality of burners are respectively arranged on two opposite side walls of the combustion chamber, specifically on two side walls parallel to the copper material conveying direction. The number of burners may vary from process to process. For example, the two opposite side walls of the combustion chamber of the present embodiment are respectively provided with 3 burners. Specifically, burners 221 and 222 are provided on both side walls above the roller row of the combustion chamber, respectively, and 2 burners are provided on both side walls below the roller row of the combustion chamber, respectively. More specifically, as shown in fig. 2, on the side wall below the roller row, burners 223, 224 are provided close to the outlet of the combustion chamber, and burners 225, 226 are provided close to the inlet of the combustion chamber. Through setting up the position of nozzle for heat energy in the combustion chamber distributes evenly, and the heat energy of make full use of combustion chamber has reduced heat energy consumption. The following is a description of specific data. In 2 rows of burners in the prior art, the combustion intensity of 1 main burner in each row is 30 ten thousand kilocalories, the combustion intensity of 1 auxiliary burner is 10 ten thousand kilocalories, and the total combustion intensity is 80 ten thousand kilocalories. The burners of this embodiment are arranged in the full length of the combustion chamber, and the copper material is preheated and heated sufficiently, and through changing the position of the burner, the combustion intensity of each row of 3 burners is 10 ten thousand kilocalories, so that the combustion intensity is reduced from 80 ten thousand kilocalories in the prior art to 60 ten thousand kilocalories, and the energy consumption is greatly reduced.
In addition, the combustion chamber is internally pasted with rock wool and ceramic fiber felts, and the combustion chamber is light in material, so that the whole furnace body is light in weight and simple to maintain and replace. The whole framework of the preheating furnace and the furnace plate are of steel structures, and then the rock wool and the ceramic fiber felt are sequentially attached to the inner side of the furnace plate.
In addition, a plurality of temperature sensors (not shown) and a speed sensor (not shown) for detecting the speed of the roller discharge are provided in the combustion chamber, and the temperature sensors are used for monitoring the temperature at a plurality of positions in the combustion chamber. The temperature sensor transmits the temperature in the combustion chamber to the control system in real time, and the control system compares the detected temperature with the set temperature so as to adjust the flow of the combustible gas of each burner. And when the copper material reaches the set temperature, the control system controls the rotation speed of the roller row, the copper material is conveyed to the melting furnace, and the copper material is added into the preheating furnace. The influence on the melting process caused by the fact that the copper material enters the melting furnace without being heated to the set temperature can be avoided. The waste of heat energy caused by continuous heating after the copper material reaches the set temperature can be avoided, so that the feeding speed is matched with the speed of the front and rear related devices.
In addition, the running roller of running roller row can adopt SCH24 foundry goods to make, has higher heat-resisting strength, can guarantee that the running roller row has longer life under the high temperature of combustion chamber.
According to another aspect of the present invention, there is provided a method of manufacturing a copper rod using the preheating furnace described above. The manufacturing process of the oxygen-free copper rod by dip coating forming method comprises the steps of smelting, casting and rolling the electrolytic copper material into a rod, and then winding the rod into a ring, thereby producing the bright oxygen-free copper rod for electricians. The preheating furnace is mainly used for preheating and heating the electrolytic copper material and burning off attachments on the surface of the copper material. The preheating furnace is adopted for producing the copper rod, and comprises the following steps:
the copper material is placed on a conveying device by a feeding device, the conveying device adopts a roller row, the roller row 27 extends from a feeding port of the preheating furnace 2 to an outlet of the combustion chamber 22, and the copper material is conveyed into the combustion chamber 22 through the roller row 27.
Combustible gas is introduced into the burners, and after ignition and combustion, the copper material on the roller row 27 is preheated and heated, so that attachments on the surface of the copper material are burnt. During the preheating process, the flow of combustible gas of each burner can be adjusted in real time according to signals of the temperature sensor. The conveying speed of the roller row can be adjusted in real time according to the signals of the temperature sensors.
The preheated copper material is conveyed to the melting furnace through the roller row 27 and the connecting chamber 23, and the combustion chamber 22 and the melting furnace 3 are hermetically connected through the connecting chamber 23. Since the inlet of the melting furnace is lower than the outlet of the preheating furnace, the roller row 27 in the connecting chamber 23 is disposed at an inclined angle to the horizontal plane, and the preheated copper material is introduced into the melting furnace 3 along the inclined roller row 27.
According to the closed preheating furnace for producing the copper rod, the connecting chamber is added, and the copper material is conveyed in a closed manner, so that the temperature in the furnace can be effectively ensured, the copper material can reach the requirement of 300 ℃, and the heat energy loss is reduced; the crawler-type conveying belt in the prior art is changed into a roller-way conveying belt, so that the stress strength is increased, the deformation and the damage are not easy to occur, and the maintenance strength is saved; the position of the burner is changed, so that the heat energy distribution in the combustion chamber is more reasonable, and the heat efficiency is improved.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. A closed preheating furnace is used in copper pole production, includes:
the combustion chamber is internally provided with a plurality of burners for preheating the copper material;
the connecting chamber is used for hermetically connecting the combustion chamber with the melting furnace;
a conveying device which conveys the copper material into the combustion chamber and conveys the preheated copper material to the melting furnace,
a plurality of burners are arranged on any side wall above the conveying device and close to the middle part, a plurality of burners are respectively arranged on any side wall below the conveying device and close to the inlet of the combustion chamber and the outlet of the combustion chamber, combustible gas is introduced into the burners, incomplete combustion is carried out in the combustion chamber,
in addition, the preheating furnace is also provided with a temperature sensor for detecting the temperature of the copper material and a speed sensor for detecting the speed of the conveying device, the control system adjusts the flow of combustible gas of each burner and the speed of the conveying device according to the temperature value of the copper material,
wherein, conveyor is the running roller row, and the running roller row in the connecting chamber slopes down gradually.
2. The preheating furnace of claim 1, wherein the combustion chamber is internally mounted with rock wool and ceramic fiber felt.
3. A method for manufacturing a copper bar, comprising the steps of smelting, casting, rolling into a bar and forming a ring, wherein the smelting step uses the preheating furnace of any one of claims 1-2 to perform the following steps:
conveying the copper material to a combustion chamber by a conveying device;
combustible gas is introduced into the burner to preheat the copper fuel in the combustion chamber;
and the conveying device conveys the preheated copper material to the melting furnace in a closed manner through the connecting chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610685959.2A CN106440774B (en) | 2016-08-18 | 2016-08-18 | Closed preheating furnace for copper rod production and copper rod manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610685959.2A CN106440774B (en) | 2016-08-18 | 2016-08-18 | Closed preheating furnace for copper rod production and copper rod manufacturing method |
Publications (2)
| Publication Number | Publication Date |
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| CN106440774A CN106440774A (en) | 2017-02-22 |
| CN106440774B true CN106440774B (en) | 2019-12-27 |
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| CN201610685959.2A Active CN106440774B (en) | 2016-08-18 | 2016-08-18 | Closed preheating furnace for copper rod production and copper rod manufacturing method |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107812926A (en) * | 2017-12-28 | 2018-03-20 | 湖北启宏热工设备有限公司 | A kind of horizontal alloy pig preheating charger |
| CN109631573A (en) * | 2018-12-28 | 2019-04-16 | 浙江中晶新能源有限公司 | A kind of temperature automatically controlled sintering furnace |
| CN110486735A (en) * | 2019-08-02 | 2019-11-22 | 广东省特种设备检测研究院汕尾检测院 | A kind of liquefied petroleum gas steel cylinder incinerator of controllable temperature |
| CN114645136A (en) * | 2022-03-16 | 2022-06-21 | 杭州富通集团有限公司 | Processing technology of copper rod |
| CN117490403B (en) * | 2023-12-28 | 2024-03-19 | 福建省漳州瑞成陶瓷有限公司 | Quick-firing roller kiln |
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| CN101907401A (en) * | 2010-05-12 | 2010-12-08 | 中冶赛迪工程技术股份有限公司 | Scrap steel pre-heating conveyor with short process |
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| CN201787807U (en) * | 2010-08-13 | 2011-04-06 | 游述怀 | Vertical high-efficiency energy-saving copper melting furnace with premixing combustion system |
| CN103382520A (en) * | 2013-07-04 | 2013-11-06 | 富通集团有限公司 | Manufacturing method of copper rods and copper plate preheating furnace thereof |
| JP5838793B2 (en) * | 2011-12-26 | 2016-01-06 | Ｊｆｅスチール株式会社 | Method and apparatus for melting iron scrap |
| CN204981944U (en) * | 2015-09-06 | 2016-01-20 | 江苏兴辉炉业科技有限公司 | Steel scrap preheats heating furnace |
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2016
- 2016-08-18 CN CN201610685959.2A patent/CN106440774B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2011020092A1 (en) * | 2009-08-14 | 2011-02-17 | Pyrotek, Inc. | Waste heat system |
| CN101907401A (en) * | 2010-05-12 | 2010-12-08 | 中冶赛迪工程技术股份有限公司 | Scrap steel pre-heating conveyor with short process |
| CN201787807U (en) * | 2010-08-13 | 2011-04-06 | 游述怀 | Vertical high-efficiency energy-saving copper melting furnace with premixing combustion system |
| JP5838793B2 (en) * | 2011-12-26 | 2016-01-06 | Ｊｆｅスチール株式会社 | Method and apparatus for melting iron scrap |
| CN103382520A (en) * | 2013-07-04 | 2013-11-06 | 富通集团有限公司 | Manufacturing method of copper rods and copper plate preheating furnace thereof |
| CN204981944U (en) * | 2015-09-06 | 2016-01-20 | 江苏兴辉炉业科技有限公司 | Steel scrap preheats heating furnace |
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| CN106440774A (en) | 2017-02-22 |
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