CN110953890A - Fused magnesium lump cooling and waste heat recovery system and implementation method - Google Patents
Fused magnesium lump cooling and waste heat recovery system and implementation method Download PDFInfo
- Publication number
- CN110953890A CN110953890A CN201911378618.0A CN201911378618A CN110953890A CN 110953890 A CN110953890 A CN 110953890A CN 201911378618 A CN201911378618 A CN 201911378618A CN 110953890 A CN110953890 A CN 110953890A
- Authority
- CN
- China
- Prior art keywords
- shell
- movable baffle
- waste heat
- fused magnesium
- baffle plate
- 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
Links
Images
Classifications
-
- 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
- F27D9/00—Cooling of furnaces or of charges therein
-
- 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
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/004—Systems for reclaiming waste heat
-
- 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
- F27D9/00—Cooling of furnaces or of charges therein
- F27D2009/007—Cooling of charges therein
- F27D2009/0072—Cooling of charges therein the cooling medium being a gas
- F27D2009/0075—Cooling of charges therein the cooling medium being a gas in direct contact with the charge
-
- 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
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/004—Systems for reclaiming waste heat
- F27D2017/006—Systems for reclaiming waste heat using a boiler
-
- 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
-
- 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
- F27M2003/13—Smelting
-
- 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 discloses a cooling and waste heat recovery system for an electric fused magnesium lump and an implementation method. The rail cars loaded with the fused magnesium lumps are sequentially put into the tunnel cooling device; and after entering the tunnel cooling device and performing countercurrent heat exchange with the fused magnesium lump, the circulating gas enters the material preheating device and the waste heat boiler to release heat and cool, and is sent back to the tunnel cooling device through the circulating fan to complete cooling gas circulation. The technical effect is that the problem of continuous and rapid cooling of the high-temperature fused magnesium lump is solved, and simultaneously, the waste heat is fully recovered for preheating materials and generating steam for heat supply or power generation; the cooling medium is recycled, and the method has the advantages of energy conservation, environmental protection and zero emission.
Description
Technical Field
The invention relates to the fused magnesia smelting industry, in particular to a fused magnesium lump cooling and waste heat recovery system and an implementation method thereof, which are used for cooling a fused magnesium lump produced by an electric arc furnace.
Background
The fused magnesia lump is formed by melting natural magnesite, light-burned magnesia or sintered magnesia through an electric arc furnace, and the fused magnesia is obtained after crushing and sorting, is an excellent high-temperature electrical insulating material, and is also an important raw material for manufacturing high-grade magnesia bricks, magnesia carbon bricks and unshaped refractory materials.
The smelting temperature of the electric arc furnace is more than 3000 ℃, the surface temperature of the electric magnesium lump after being discharged is more than 500 ℃, and the central temperature is more than 2500 ℃. The next process can be carried out after natural cooling is generally adopted. In the process, a large amount of sensible heat is dissipated to the working space, so that heat is wasted, the environment is polluted, potential safety hazards are brought to production personnel, and accidents are easy to occur.
The invention relates to a high-efficiency fused magnesium lump waste heat convection radiation n-shaped straddle type plate heat exchanger which is disclosed in patent CN201410025769.9, wherein a plate heat exchanger is directly covered on a fused magnesium lump, and a low-temperature gasification medium is used as a heat exchange medium to recover waste heat; the low-temperature gasification medium has low temperature, poor heat quality and low available value; the leakage of a general low-temperature gasification medium can cause environmental pollution, and has certain potential safety hazard; the raw material of the electric smelting magnesium is not preheated; the device cost is higher.
The invention patent CN201010190749.9 waste heat recovery device and method for fused magnesium lump adopts a single-closed body furnace sleeve air cooling method to recover waste heat, and has the main defect that the fused magnesium lump and the furnace sleeve are difficult to assemble and disassemble; the continuity and stability of monomer cooling are poor; the air heating temperature is low, and the heat quality is poor; each fused magnesium lump needs to be provided with a furnace sleeve, and the method is not suitable for mass production.
Disclosure of Invention
In view of the problems in the prior art, the invention provides a system for cooling an electric smelting magnesium lump and recovering waste heat and an implementation method thereof. The high-temperature fused magnesium lump can be continuously and rapidly cooled, and simultaneously, the waste heat is recovered and used for preheating raw materials and generating steam for heat supply or power generation.
The technical scheme adopted by the invention is as follows: a cooling and waste heat recovery system for an electric smelting magnesium lump comprises a tunnel cooling device and a waste heat recovery system, wherein the tunnel cooling device comprises a rail car, a ground rail, a shell, an air inlet, an air outlet, a movable baffle plate, a feeding door and a discharging door;
the shell is a cuboid and comprises a side wall I, a side wall II and a top wall, two air inlets are symmetrically arranged on the side wall I and the side wall II at the outlet end of the shell, a plurality of movable baffle plate openings and an air outlet are arranged on the top wall of the shell at intervals, the air outlet is close to the inlet end of the shell, the movable baffle plate openings are arranged in a staggered mode, namely, one ends of the movable baffle plate openings are connected with the side wall I of the shell, a certain distance is reserved between the other ends of the movable baffle plate openings and the side wall II of the shell, each pair of movable baffle plate openings connected with the side wall I correspond to each other, one end of each movable baffle plate opening is connected with the side wall II of the shell, and a certain distance is reserved between the other ends of the movable baffle plate openings and the side wall I of the;
the feeding door is arranged at the inlet end of the shell, the discharging door is arranged at the outlet end of the shell, and two ground rails are laid on the ground at the bottom of the shell;
the multiple rail cars are arranged on the ground rail, the multiple movable baffle plates are inserted into the shell through the multiple movable baffle plate openings of the shell, one movable baffle plate is arranged between every two rail cars, and openings at the lower ends of the multiple movable baffle plates are arranged at the connection position of the hooks between the two rail cars;
the waste heat recovery system comprises a material preheater, a waste heat boiler and a circulating fan which are arranged outside the shell;
the air outlet of the shell is sequentially connected with the material preheater, the waste heat boiler, the circulating fan and the four air inlets in series through pipelines to form a closed circulating system.
An implementation method of a fused magnesium lump cooling and waste heat recovery system comprises the following steps:
and firstly, starting a circulating fan of the waste heat recovery system, and enabling circulating gas to enter a shell of the tunnel cooling device from four air inlets of the tunnel cooling device.
Two, open tunnel cooling device's feeding door and discharge door, and take several movable baffling boards out entirely, the railcar that will load high temperature electric smelting magnesium lump 1 passes through the ground rail from the feeding door and impels the casing in, several railcars take one's place the back, several movable baffling board mouths that pass through the casing with a plurality of movable baffling boards cartridge respectively in the casing, be equipped with a movable baffling board between per two railcars, the couple junction between two railcars is arranged in to the opening of a plurality of movable baffling board lower extremes, constitute curve gas flow channel between the corresponding end of a plurality of movable baffling boards on lateral wall I and lateral wall II, close feeding door and discharge door simultaneously.
And thirdly, circulating gas flows in the shell along a plurality of movable baffle plate curve flow channels, absorbs heat of the high-temperature fused magnesium lump 1 and then is discharged from an air outlet of the shell, enters a material preheater to preheat a blocky fused magnesium raw material required by the fused magnesium electric arc furnace, cold raw material enters from the upper part of the material preheater, hot raw material is discharged from the lower part of the material preheater after directly contacting with the circulating gas for heat exchange, and the hot raw material is sent to a feeding bin of the electric arc furnace.
And fourthly, the circulating gas discharged from the upper part of the material preheater enters a waste heat boiler to heat the feed water to generate low-pressure steam, and the low-pressure steam is conveyed to a steam pipe network of a factory to supply heat or generate electricity.
And fifthly, after the circulating gas is discharged from the waste heat boiler, the cooled circulating gas is sent back to the air inlet of the shell through the circulating fan, and the cooling and waste heat recovery circulation of the fused magnesium lump is completed.
The invention has the technical effects that: the cooling of the fused magnesium lump adopts pure countercurrent flow, and the baffle plate is arranged to enhance airflow disturbance enhanced heat exchange, so that the fused magnesium lump has good cooling effect, high temperature of heat exchange gas and cyclic use, ensures that waste heat can be fully utilized, can be used for raw material preheating and heat supply or power generation, improves heat utilization efficiency, reduces electric arc furnace load and production power consumption, saves energy, reduces consumption, improves working environment, reduces potential safety hazards, and has low investment and operation cost.
The invention solves the problem of continuous and rapid cooling of the high-temperature fused magnesium lump, and simultaneously fully recovers the waste heat for preheating materials and generating steam for supplying heat or generating electricity; the cooling medium is recycled, and the method has the advantages of environmental protection and zero emission.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a side cross-sectional view of the present invention;
FIG. 3 is a top view of the housing of the present invention;
FIG. 4 is a schematic view of a movable baffle of the present invention;
FIG. 5 is a diagram of the present invention in use state I;
fig. 6 is a use state diagram ii of the present invention.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1 to 4, the cooling and waste heat recovery system for the fused magnesium lump comprises a tunnel cooling device and a waste heat recovery system, wherein the tunnel cooling device comprises a rail car 2, a ground rail 3, a shell 4, an air inlet 5, an air outlet 6, a movable baffle plate 10, a feeding door 11 and a discharging door 12.
The shell 4 is a cuboid and consists of a side wall I4-1, a side wall II 4-2 and a top wall 4-3, two air inlets 5 are symmetrically arranged on the side wall I4-1 and the side wall II 4-2 at the outlet end of the shell 4, a plurality of movable baffle plate openings 4-3-1 and an air outlet 6 are arranged on the top wall 4-3 of the shell 4 at intervals, the air outlet 6 is close to the inlet end of the shell 4, the plurality of movable baffle plate openings 4-3-1 are arranged in a staggered way, namely, one end of each pair of movable baffle plate openings 4-3-1 is connected with the side wall I4-1 of the shell 4, the other end of each pair of movable baffle plate openings 4-3-1 is arranged at a distance from the side wall II 4-2 of the shell 4, and each pair of movable baffle plate openings 4-3-1 connected with the side wall I4-1 are corresponding to each other, one end of each of the pairs of movable baffle openings 4-3-1 is connected with the side wall II 4-2 of the shell 4, and the other end of each of the pairs of movable baffle openings 4-3-1 is spaced from the side wall I4-1 of the shell 4.
A feed gate 11 is mounted on the inlet end of the housing 4, a discharge gate 12 is mounted on the outlet end of the housing 4, and two ground rails 3 are laid on the ground at the bottom of the housing 4.
The multiple rail cars 2 are arranged on the ground rail 3, the multiple movable baffle plates 10 are inserted into the shell 4 through the multiple movable baffle plate openings 4-3-1 of the shell 4, one movable baffle plate 10 is arranged between every two rail cars 2, and the openings 10-1 at the lower ends of the multiple movable baffle plates 10 are arranged at the connection position of the hooks between the two rail cars 2.
The waste heat recovery system comprises a material preheater 7, a waste heat boiler 8 and a circulating fan 9 which are arranged outside the shell 4;
an air outlet 6 of the shell 4 is sequentially connected with a material preheater 7, a waste heat boiler 8, a circulating fan 9 and four air inlets 5 in series through pipelines to form a closed circulating system.
The shell of the shell 4 is a carbon steel metal shell, the middle layer is made of heat insulation materials, and the inner layer is made of porous refractory bricks.
The air inlet 5 adopts a round-to-square flaring structure, and the central line of the air inlet 5 and the horizontal plane form an inclination angle of 15-45 degrees downwards.
The movable baffle plate 10 is built by porous refractory bricks by adopting a metal frame structure, an opening 10-1 is arranged on one side of the lower end of the movable baffle plate 10, the movable baffle plate 10 is hermetically connected with the shell 4, and the movable baffle plate 10 is pulled out from the shell 4 by adopting a crane or an actuating mechanism.
The feeding door 11 and the discharging door 12 are connected with the shell 4 in a sealing mode and can be opened upwards or laterally.
As shown in fig. 5 and 6, a method for implementing a cooling and waste heat recovery system for an electric fused magnesium lump comprises the following steps:
firstly, a circulating fan 9 of the waste heat recovery system is started, and circulating gas enters a shell 4 of the tunnel cooling device from four air inlets 5 of the tunnel cooling device.
Opening a feeding door 11 and a discharging door 12 of the tunnel cooling device, completely drawing out a plurality of movable baffle plates 10, pushing a plurality of railcars 2 loaded with high-temperature fused magnesium lumps 1 into a shell 4 through ground rails 3 from the feeding door 11, inserting a plurality of movable baffle plates 10 into the shell 4 through a plurality of movable baffle plate openings 4-3-1 of the shell 4 after the railcars 2 are in place, arranging one movable baffle plate 10 between every two railcars 2, arranging openings 10-1 at the lower ends of the movable baffle plates 10 at the hook connection part between the two railcars 2, forming a curved gas flow channel between corresponding ends of the movable baffle plates 10 on a side wall I4-1 and a side wall II 4-2, and closing the feeding door 11 and the discharging door 12.
Circulating gas flows along a plurality of movable baffle plates 10 in the shell 4, and is discharged from an air outlet 6 of the shell 4 after absorbing heat of the high-temperature fused magnesium lump 1, enters a material preheater 7 to preheat a blocky fused magnesium raw material required by a fused magnesium electric arc furnace, a cold raw material enters from the upper part of the material preheater 7, and a hot raw material is discharged from the lower part of the material preheater 7 after directly contacting with the circulating gas for heat exchange and is sent to an electric arc furnace feeding bin.
And fourthly, the circulating gas discharged from the upper part of the material preheater 7 enters a waste heat boiler 8, and low-pressure steam is generated by heating feed water and is conveyed to a steam pipe network of a factory for heat supply or power generation.
Fifthly, after the circulating gas is discharged from the waste heat boiler 8, the cooled circulating gas is sent back to the gas inlet 5 of the shell 4 through the circulating fan 9, and cooling and waste heat recovery circulation of the fused magnesium lump is completed.
The outer layer of the material preheater 7 is made of a heat insulation material, and the inner layer is made of a carbon steel lining wear-resistant ceramic material; vertical pure countercurrent direct contact heat exchange is adopted, circulating gas flows from bottom to top, and the massive fused magnesium raw material moves from top to bottom by virtue of gravity.
In this embodiment, 4 railcars 2 are provided, and 3 movable baffles 10 are provided.
Claims (7)
1. The utility model provides an electrically fused magnesium cooling that sticks together and waste heat recovery system which characterized in that: the tunnel cooling device comprises a rail car (2), a ground rail (3), a shell (4), an air inlet (5), an air outlet (6), a movable baffle plate (10), a feeding door (11) and a discharging door (12);
the shell (4) is a cuboid and consists of a side wall I (4-1), a side wall II (4-2) and a top wall (4-3), two air inlets (5) are symmetrically arranged on the side wall I (4-1) and the side wall II (4-2) at the outlet end of the shell (4), a plurality of movable baffle plate openings (4-3-1) and an air outlet (6) are arranged on the top wall (4-3) of the shell (4) at intervals, the air outlet (6) is close to the inlet end of the shell (4), the movable baffle plate openings (4-3-1) are arranged in a staggered mode, namely, one end of each pair of movable baffle plate openings (4-3-1) is connected with the side wall I (4-1) of the shell (4), the other end of each pair of movable baffle plate openings (4-3-1) is spaced from the side wall II (4-2) of the shell (4), each pair of movable baffle openings (4-3-1) connected with the side wall I (4-1) corresponds to each other, one end of each pair of movable baffle openings (4-3-1) is connected with the side wall II (4-2) of the shell (4), and the other end of each pair of movable baffle openings (4-3-1) is spaced from the side wall I (4-1) of the shell (4);
the feeding door (11) is installed on the inlet end of the shell (4), the discharging door (12) is installed on the outlet end of the shell (4), and two ground rails (3) are arranged on the ground at the bottom of the shell (4);
the multiple rail cars (2) are arranged on the ground rail (3), the multiple movable baffle plates (10) are inserted into the shell (4) through the multiple movable baffle plate openings (4-3-1) of the shell (4), one movable baffle plate (10) is arranged between every two rail cars (2), and openings (10-1) at the lower ends of the multiple movable baffle plates (10) are arranged at the connection part of the hooks between the two rail cars (2);
the waste heat recovery system comprises a material preheater (7), a waste heat boiler (8) and a circulating fan (9) which are arranged outside the shell (4);
the shell (4) is characterized in that an air outlet (6) is sequentially connected with a material preheater (7), a waste heat boiler (8), a circulating fan (9) and four air inlets (5) in series through pipelines to form a closed circulating system.
2. The fused magnesium lump cooling and waste heat recovery system of claim 1, wherein: the shell of the shell (4) is a carbon steel metal shell, the middle layer is made of heat insulation materials, and the inner layer is made of porous refractory bricks.
3. The fused magnesium lump cooling and waste heat recovery system of claim 1, wherein: the air inlet (5) adopts a round-to-square flaring structure, and the central line of the air inlet (5) and the horizontal plane form an inclination angle of 15-45 degrees downwards.
4. The fused magnesium lump cooling and waste heat recovery system of claim 1, wherein: the movable baffle plate (10) is formed by building porous refractory bricks by adopting a metal frame structure, an opening (10-1) is formed in one side of the lower end of the movable baffle plate (10), the movable baffle plate (10) is hermetically connected with the shell (4), and the movable baffle plate (10) is pulled out of the shell (4) by adopting a crane or an actuating mechanism.
5. The fused magnesium lump cooling and waste heat recovery system of claim 1, wherein: the feeding door (11) and the discharging door (12) are connected with the shell (4) in a sealing mode and can be opened upwards or laterally.
6. An implementation method of the fused magnesium lump cooling and waste heat recovery system of claim 1 is characterized by comprising the following steps:
firstly, starting a circulating fan (9) of a waste heat recovery system, and enabling circulating gas to enter a shell (4) of the tunnel cooling device from four air inlets (5) of the tunnel cooling device;
secondly, a feeding door (11) and a discharging door (12) of the tunnel cooling device are opened, a plurality of movable baffle plates (10) are completely drawn out, a plurality of railcars (2) loaded with high-temperature fused magnesium lumps (1) are pushed into the shell (4) through the ground rails (3) from the feeding door (11), after the railcars (2) are in place, a plurality of movable baffle plates (10) are respectively inserted into the shell (4) through a plurality of movable baffle plate openings (4-3-1) of the shell (4), one movable baffle plate (10) is arranged between every two railcars (2), openings (10-1) at the lower ends of the movable baffle plates (10) are arranged at the connection position of hooks between the two railcars (2), and curve gas flowing channels are formed between the corresponding ends of the movable baffle plates (10) on the side wall I (4-1) and the side wall II (4-2), simultaneously closing the feeding door (11) and the discharging door (12);
circulating gas flows in the shell (4) along a plurality of movable baffle plate (10) curve flow channels, absorbs heat of the high-temperature fused magnesium lump (1), then is discharged from an air outlet (6) of the shell (4), enters a material preheater (7) to preheat a blocky fused magnesium raw material required by a fused magnesium electric arc furnace, a cold raw material enters from the upper part of the material preheater (7), and a hot raw material is discharged from the lower part of the material preheater (7) after directly contacting with the circulating gas for heat exchange and is sent to an electric arc furnace feeding bin;
fourthly, circulating gas discharged from the upper part of the material preheater (7) enters a waste heat boiler (8) to heat feed water to generate low-pressure steam, and the low-pressure steam is conveyed to a factory steam pipe network to be used for heat supply or power generation;
fifthly, after the circulating gas is discharged from the waste heat boiler (8), the cooled circulating gas is sent back to the gas inlet (5) of the shell (4) through the circulating fan (9), and cooling and waste heat recovery circulation of the fused magnesium lump is completed.
7. The method for realizing the cooling and waste heat recovery system of the fused magnesium lump as set forth in claim 6, wherein: the outer layer of the material preheater (7) is made of a heat-insulating material, and the inner layer is made of a carbon steel lining wear-resistant ceramic material; vertical pure countercurrent direct contact heat exchange is adopted, circulating gas flows from bottom to top, and the massive fused magnesium raw material moves from top to bottom by virtue of gravity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911378618.0A CN110953890A (en) | 2019-12-27 | 2019-12-27 | Fused magnesium lump cooling and waste heat recovery system and implementation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911378618.0A CN110953890A (en) | 2019-12-27 | 2019-12-27 | Fused magnesium lump cooling and waste heat recovery system and implementation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110953890A true CN110953890A (en) | 2020-04-03 |
Family
ID=69984626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911378618.0A Pending CN110953890A (en) | 2019-12-27 | 2019-12-27 | Fused magnesium lump cooling and waste heat recovery system and implementation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110953890A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203629343U (en) * | 2013-12-14 | 2014-06-04 | 灵宝金源矿业股份有限公司 | A flue gas cooling device |
| CN104215078A (en) * | 2014-08-29 | 2014-12-17 | 东北大学 | Magnesia clinker production equipment with waste heat recovery device and process |
| CN104229839A (en) * | 2014-08-29 | 2014-12-24 | 东北大学 | Magnesium molten lump waste heat recovery technique and device |
| CN204154124U (en) * | 2014-08-29 | 2015-02-11 | 东北大学 | A kind of water cooled wall type magnesium fusing lump afterheat retracting device |
| CN107335415A (en) * | 2016-05-03 | 2017-11-10 | 孙小平 | A kind of activated coke regenerator |
| CN211823858U (en) * | 2019-12-27 | 2020-10-30 | 天津健威泽节能环保科技股份有限公司 | Fused magnesium lump cooling and waste heat recovery system |
-
2019
- 2019-12-27 CN CN201911378618.0A patent/CN110953890A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203629343U (en) * | 2013-12-14 | 2014-06-04 | 灵宝金源矿业股份有限公司 | A flue gas cooling device |
| CN104215078A (en) * | 2014-08-29 | 2014-12-17 | 东北大学 | Magnesia clinker production equipment with waste heat recovery device and process |
| CN104229839A (en) * | 2014-08-29 | 2014-12-24 | 东北大学 | Magnesium molten lump waste heat recovery technique and device |
| CN204154124U (en) * | 2014-08-29 | 2015-02-11 | 东北大学 | A kind of water cooled wall type magnesium fusing lump afterheat retracting device |
| CN107335415A (en) * | 2016-05-03 | 2017-11-10 | 孙小平 | A kind of activated coke regenerator |
| CN211823858U (en) * | 2019-12-27 | 2020-10-30 | 天津健威泽节能环保科技股份有限公司 | Fused magnesium lump cooling and waste heat recovery system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206339094U (en) | Heating using microwave produces the product line device of alloy | |
| CN102748955B (en) | Heat-energy recovery system of high-temperature material | |
| US20130062185A1 (en) | Tunnel typed coking furnace with a movable sliding bed and the method using the same | |
| CN101531906B (en) | Method for electrical heating continuous coal pyrogenation coking and coking furnace thereof | |
| CN204612502U (en) | A kind of electric-arc furnace steelmaking fume afterheat efficient system for reclaiming | |
| CN211823858U (en) | Fused magnesium lump cooling and waste heat recovery system | |
| WO2014101710A1 (en) | Steam-water circulating system utilizing waste heat of high-temperature calcined coke generated by pot calciner | |
| CN106546096A (en) | The product line device and production method of microwave heating production alloy | |
| CN201926290U (en) | Energy-saving electrothermal tunnel kiln | |
| CN113149471A (en) | Magnesite electric light-burning shaft kiln | |
| CN2684967Y (en) | Sand heating device for casting | |
| CN104359326A (en) | System for efficiently recovering steel-making flue gas residual heat of electric-arc furnace | |
| CN102042750A (en) | Energy-saving electrothermal tunnel kiln | |
| CN107815516A (en) | A kind of external-heat coal base upright furnace for being used to produce DRI | |
| CN110953890A (en) | Fused magnesium lump cooling and waste heat recovery system and implementation method | |
| CN201413027Y (en) | Heat storage type heating furnace | |
| CN217423939U (en) | Tunnel kiln for microwave roasting green anode | |
| CN104762096A (en) | Gas guide unit, gas guide device, coal powder pyrolysis device and coal powder pyrolysis method | |
| CN2256085Y (en) | Coal air-heating furnace | |
| CN212902588U (en) | Energy-saving roasting furnace | |
| CN204509202U (en) | Gas-conducting cells, gas operated device and pulverized coal pyrolysis device | |
| CN210481213U (en) | Electric lime kiln | |
| CN203550637U (en) | Plate-type preheating device for aluminum-fusing shaft furnace | |
| CN105674743A (en) | Electrical heating roasting furnace for carbon-graphite crucible | |
| CN202754954U (en) | High-efficiency heating oil shale retorting gas device |
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 |