CN114576604A - Hot-melt slag gasification boiler heat recovery system and use method thereof - Google Patents
Hot-melt slag gasification boiler heat recovery system and use method thereof Download PDFInfo
- Publication number
- CN114576604A CN114576604A CN202210361214.6A CN202210361214A CN114576604A CN 114576604 A CN114576604 A CN 114576604A CN 202210361214 A CN202210361214 A CN 202210361214A CN 114576604 A CN114576604 A CN 114576604A
- Authority
- CN
- China
- Prior art keywords
- slag
- hot
- temperature gasifier
- heat recovery
- recovery system
- 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
- 239000002893 slag Substances 0.000 title claims abstract description 113
- 239000012943 hotmelt Substances 0.000 title claims abstract description 37
- 238000011084 recovery Methods 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000002309 gasification Methods 0.000 title claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 14
- 230000008569 process Effects 0.000 claims abstract description 9
- 238000012216 screening Methods 0.000 claims description 16
- 230000009471 action Effects 0.000 claims description 14
- 239000007787 solid Substances 0.000 claims description 11
- 239000000498 cooling water Substances 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 4
- 238000002844 melting Methods 0.000 claims description 2
- 239000006200 vaporizer Substances 0.000 abstract description 10
- 238000005507 spraying Methods 0.000 abstract description 4
- 230000003028 elevating effect Effects 0.000 abstract description 3
- 230000006872 improvement Effects 0.000 abstract description 3
- 239000002699 waste material Substances 0.000 abstract description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 229910000863 Ferronickel Inorganic materials 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910001710 laterite Inorganic materials 0.000 description 1
- 239000011504 laterite Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
- F22B1/04—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being hot slag, hot residues, or heated blocks, e.g. iron blocks
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B33/00—Steam-generation plants, e.g. comprising steam boilers of different types in mutual association
- F22B33/18—Combinations of steam boilers with other apparatus
-
- 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
-
- 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
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Gasification And Melting Of Waste (AREA)
Abstract
The invention discloses a heat recovery system of a hot-melt slag gasification boiler and a use method thereof, and relates to the technical field of comprehensive utilization of wastes. This hot melt slag gasification boiler heat recovery system, including hot melt slag ladle and belt feeder, be provided with the intermediate slag ladle under the hot melt slag ladle, be provided with high temperature vaporizer under the intermediate slag ladle, the vertical up of pan feeding mouth of high temperature vaporizer, the vertical down of discharge gate, be provided with the vibration elevating platform under the high temperature vaporizer. According to the heat recovery system of the hot-melt slag gasification boiler and the using method of the heat recovery system, a series of heat recovery operations are performed on the molten slag after the hot-melt slag is generated, the temperature of the hot molten slag is effectively reduced while the heat energy is recovered, the water required by subsequent water spraying treatment is reduced, the cost is saved while the environment is protected, meanwhile, the whole system is relatively independent and cannot influence other processes, the whole structure is a high tower structure, the occupied area is small, and the heat recovery system is suitable for large-scale improvement.
Description
Technical Field
The invention relates to the technical field of comprehensive utilization of wastes, in particular to a heat recovery system of a hot-melt slag gasification boiler and a using method thereof.
Background
Along with the continuous progress of society, the use of stainless steel is more and more extensive, the yield of stainless steel is continuously improved, the stainless steel needs to use a large amount of ferronickel in the production process, a submerged arc furnace is used for producing the ferronickel in large amount, laterite is subjected to submerged arc furnace high-temperature heating operation, a large amount of hot slag is generated in the production process, about 500 tons of hot slag are generated each day when each submerged arc furnace works, the initial temperature of the hot slag is 1500-1600 ℃, and in the prior art, the temperature of the slag is reduced by adopting a water spraying treatment mode, so that the next process is continuously carried out.
In the prior art, the produced steel slag is directly sprayed with water, a large amount of resources are consumed, certain environmental pollution is caused, the heat energy of hot slag cannot be well recovered, the cost is increased, the working efficiency is reduced, and meanwhile, a series of physical discomfort can be caused to operators due to high-temperature operation.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a heat recovery system of a hot-melt slag gasification boiler and a using method thereof, and solves the problems that in the prior art, the produced steel slag is directly sprayed with water, a large amount of resources are consumed, certain environmental pollution is caused, the heat energy of hot slag cannot be well recovered, the cost is increased, the working efficiency is reduced, and meanwhile, a series of physical discomfort is caused to operators due to high-temperature operation.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a hot melt slag gasification boiler heat recovery system, includes hot melt slag ladle and belt feeder, be provided with the intermediate slag ladle under the hot melt slag ladle, be provided with high temperature vaporizer under the intermediate slag ladle, the vertical up of pan feeding mouth of high temperature vaporizer, the discharge gate is vertical down, be provided with the vibration elevating platform under the high temperature vaporizer, be provided with crushing and screening system under the vibration elevating platform, be provided with the intermediate slag fill under the crushing and screening system, the left side of intermediate slag fill bottom is provided with well low temperature vaporizer, the pan feeding mouth of well low temperature vaporizer is up towards the right, and the discharge gate is down left, the straight line that well low temperature vaporizer place has 1-89 contained angle for the horizontal plane, be provided with the belt feeder discharge gate under the well low temperature vaporizer discharge gate.
A use method of a heat recovery system of a hot-melt slag gasification boiler comprises the heat recovery system of the hot-melt slag gasification boiler, and specifically comprises the following operations:
s1, after the hot melt slag is generated, adding the hot melt slag into the intermediate slag tank through the hot melt slag tank;
s2, plugging a discharge hole of the high-temperature gasifier by the vibration lifting platform, then adding the slag in the intermediate slag tank into the high-temperature gasifier, and controlling the high-temperature gasifier to work, so that cooling water enters through a water inlet of the high-temperature gasifier and is changed into steam to be discharged under the high-temperature conduction action;
s3, controlling the vibration lifting platform to vibrate up and down and move down relative to the high-temperature gasifier, so that the slag in the high-temperature gasifier is separated from the inner wall of the high-temperature gasifier in vibration, and horizontally moving the vibration lifting platform when the temperature of the slag is lower than 1000 ℃ so that the solid slag in the high-temperature gasifier falls into the crushing and screening system;
s4, further crushing the solid slag falling into the crushing and screening system under the action of the crushing and screening system, and falling into an intermediate slag hopper after the crushing is finished;
s5, controlling the middle and low temperature gasifier to work after the temperature of the molten slag in the intermediate slag hopper reaches 750-fold 850 ℃, inclining the intermediate slag hopper to enable the solid hot molten slag in the intermediate slag hopper to fall to the middle and low temperature gasifier, enabling cooling water to enter through a water inlet of the middle and low temperature gasifier and become steam to be discharged under the action of high temperature, and simultaneously enabling the temperature of the solid molten slag to further fall to 100 ℃ and fall onto the belt conveyor through a discharge hole of the middle and low temperature gasifier;
and S6, conveying the slag to the next process for processing operation under the action of the belt conveyor.
(III) advantageous effects
The invention provides a heat recovery system of a hot-melt slag gasification boiler and a using method thereof. The method has the following beneficial effects:
according to the heat recovery system of the hot-melt slag gasification boiler and the using method thereof, a series of heat recovery operations are carried out on the molten slag after the molten slag is generated, so that the temperature of the molten slag is effectively reduced while the heat energy is recovered, the water required by subsequent water spraying treatment is reduced, the cost is saved while the environment is protected, meanwhile, the whole system is relatively independent, other processes cannot be influenced, the whole structure is a high tower structure, the occupied area is small, and the system is suitable for large-scale improvement.
Drawings
FIG. 1 is a schematic structural view of the present invention;
in the figure: 1. a hot-melting slag tank; 2. a middle slag pot; 3. a high temperature gasifier; 4. vibrating the lifting table; 5. a crushing and screening system; 6. an intermediate slag hopper; 7. a medium-low temperature gasifier; 8. a belt conveyor.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the present invention provides a technical solution: a hot-melt slag gasification boiler heat recovery system comprises a hot-melt slag tank 1 and a belt conveyor 8, wherein an intermediate slag tank 2 is arranged under the hot-melt slag tank 1, a high-temperature gasifier 3 is arranged under the intermediate slag tank 2, a feeding port of the high-temperature gasifier 3 faces upwards vertically, a discharging port faces downwards vertically, a vibrating lifting table 4 is arranged under the high-temperature gasifier 3, a crushing and screening system 5 is arranged under the vibrating lifting table 4, an intermediate slag hopper 6 is arranged under the crushing and screening system 5, a medium and low-temperature gasifier 7 is arranged on the left side of the bottom of the intermediate slag hopper 6, a feeding port of the medium and low-temperature gasifier 7 faces upwards to the right, a discharging port faces downwards to the left, an included angle of 1-89 degrees exists between the straight line where the medium and low-temperature gasifier 7 is located and the horizontal plane, and the belt conveyor 8 is arranged under the discharging port of the medium and low-temperature gasifier 7.
A use method of a heat recovery system of a hot-melt slag gasification boiler comprises the heat recovery system of the hot-melt slag gasification boiler, and specifically comprises the following operations:
s1, after the hot-melt slag is generated, adding the hot-melt slag into the intermediate slag tank 2 through the hot-melt slag tank 1;
s2, plugging a discharge hole of the high-temperature gasifier 3 through the vibrating lifting platform 4, then adding the slag in the intermediate slag tank 2 into the high-temperature gasifier 3, and controlling the high-temperature gasifier 3 to work, so that cooling water enters through a water inlet of the high-temperature gasifier 3 and is changed into steam to be discharged under the action of high-temperature conduction;
s3, controlling the vibration lifting platform 4 to vibrate up and down and move down relative to the high-temperature gasifier 3, so that the slag in the high-temperature gasifier 3 is separated from the inner wall of the high-temperature gasifier 3 in vibration, and when the temperature of the slag is lower than 1000 ℃, horizontally moving the vibration lifting platform 4, so that the solid slag in the high-temperature gasifier 3 falls into the crushing and screening system 5;
s4, further crushing the solid slag falling into the crushing and screening system 5 under the action of the crushing and screening system 5, and falling into the middle slag hopper 6 after the crushing is finished;
s5, controlling the medium-low temperature gasifier 7 to work after the temperature of the molten slag in the intermediate slag hopper 6 reaches 750-850 ℃, inclining the intermediate slag hopper 6 to enable the solid hot molten slag in the intermediate slag hopper 6 to fall to the medium-low temperature gasifier 7, enabling cooling water to enter through a water inlet of the medium-low temperature gasifier 7 and become steam to be discharged under the action of high temperature, further reducing the temperature of the solid molten slag to 100 ℃, and enabling the solid molten slag to fall onto the belt conveyor 8 through a discharge hole of the medium-low temperature gasifier 7;
and S6, conveying the slag to the next process for processing operation under the action of the belt conveyor 8.
In conclusion, according to the heat recovery system of the hot-melt slag gasification boiler and the use method thereof, a series of heat recovery operations are performed on the molten slag after the molten slag is generated, so that the temperature of the molten slag is effectively reduced while the heat is recovered, the water required by subsequent water spraying treatment is reduced, the cost is saved while the environment is protected, meanwhile, the whole system is relatively independent and does not influence other processes, the whole structure is a high tower structure, the occupied area is small, and the system is suitable for large-scale improvement.
It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (2)
1. The utility model provides a hot melt slag gasification boiler heat recovery system, includes hot melt slag ladle (1) and belt feeder (8), its characterized in that: an intermediate slag pot (2) is arranged right below the hot-melting slag pot (1), a high-temperature gasifier (3) is arranged right below the intermediate slag pot (2), a feeding port of the high-temperature gasifier (3) is vertically upward, a discharging port of the high-temperature gasifier is vertically downward, a vibration lifting table (4) is arranged under the high-temperature gasifier (3), a crushing and screening system (5) is arranged under the vibration lifting platform (4), an intermediate slag hopper (6) is arranged right below the crushing and screening system (5), a middle and low temperature gasifier (7) is arranged on the left side of the bottom of the middle slag hopper (6), the feed inlet of the middle and low temperature gasifier (7) faces upwards to the right, the discharge outlet faces downwards to the left, the straight line of the middle and low temperature gasifier (7) has an included angle of 1-89 degrees relative to the horizontal plane, a belt conveyor (8) is arranged right below the discharge hole of the medium-low temperature gasifier (7).
2. The use method of the heat recovery system of the hot-melt slag gasification boiler is characterized by comprising the following steps: the hot melt slag gasification boiler heat recovery system comprises the hot melt slag gasification boiler heat recovery system of claim 1, and specifically operates as follows:
s1, after the hot melt slag is generated, adding the hot melt slag into the intermediate slag tank (2) through the hot melt slag tank (1);
s2, plugging a discharge hole of the high-temperature gasifier (3) through the vibration lifting platform (4), then adding the slag in the intermediate slag tank (2) into the high-temperature gasifier (3), and controlling the high-temperature gasifier (3) to work, so that cooling water enters through a water inlet of the high-temperature gasifier (3) and is changed into steam to be discharged under the action of high-temperature conduction;
s3, controlling the vibration lifting platform (4) to vibrate up and down relative to the high-temperature gasifier (3) and move down, so that the slag in the high-temperature gasifier (3) is separated from the inner wall of the high-temperature gasifier (3) in vibration, and horizontally moving the vibration lifting platform (4) when the temperature of the slag is lower than 1000 ℃ so that the solid slag in the high-temperature gasifier (3) falls into the crushing and screening system (5);
s4, further crushing the solid slag falling into the crushing and screening system (5) under the action of the crushing and screening system (5), and falling into the middle slag hopper (6) after the crushing is finished;
s5, controlling the medium-low temperature gasifier (7) to work after the temperature of the molten slag in the intermediate slag hopper (6) reaches 750-;
s6, transporting the slag to the next process for processing operation under the action of the belt conveyor (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210361214.6A CN114576604A (en) | 2022-04-07 | 2022-04-07 | Hot-melt slag gasification boiler heat recovery system and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210361214.6A CN114576604A (en) | 2022-04-07 | 2022-04-07 | Hot-melt slag gasification boiler heat recovery system and use method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114576604A true CN114576604A (en) | 2022-06-03 |
Family
ID=81784401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210361214.6A Pending CN114576604A (en) | 2022-04-07 | 2022-04-07 | Hot-melt slag gasification boiler heat recovery system and use method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114576604A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115752030A (en) * | 2022-12-20 | 2023-03-07 | 成都永会利机械制造有限公司 | High-temperature slag waste heat recovery boiler |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB190903623A (en) * | 1909-02-13 | 1909-08-12 | Claude Vautin | Improvements relating to the Generation of Steam from the Heat contained in Slags. |
| GB223533A (en) * | 1923-10-16 | 1925-08-20 | Arbed | Improvements in or relating to the method of and apparatus for the treatment of molten slag, metals or the like |
| CN201770710U (en) * | 2010-08-13 | 2011-03-23 | 宋涛 | Heat recovery device of liquid blast furnace slag |
| CN203625395U (en) * | 2013-12-06 | 2014-06-04 | 无锡市东方环境工程设计研究所有限公司 | Liquid-state blast furnace slag granulation and multi-roller waste heat recovery system |
| CN104404179A (en) * | 2014-10-18 | 2015-03-11 | 郑州轻工业学院 | Liquid high temperature material waste heat recovery unit |
| CN108165686A (en) * | 2018-01-13 | 2018-06-15 | 秦皇岛点知汇科技有限公司 | A kind of drum-type slag granulation and residual neat recovering system |
| CN207973711U (en) * | 2018-03-16 | 2018-10-16 | 新能能源有限公司 | Fluidized-bed gasification furnace stable state slag-draining device |
| CN210485660U (en) * | 2019-07-29 | 2020-05-08 | 山东昊通节能服务股份有限公司 | High-temperature solid material waste heat conversion device |
| CN211823882U (en) * | 2020-02-18 | 2020-10-30 | 思源交大河北科技有限公司 | High-temperature pellet cooling treatment device |
| CN213207804U (en) * | 2020-05-20 | 2021-05-14 | 义马环保电力有限公司 | Boiler slag heat recovery device |
-
2022
- 2022-04-07 CN CN202210361214.6A patent/CN114576604A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB190903623A (en) * | 1909-02-13 | 1909-08-12 | Claude Vautin | Improvements relating to the Generation of Steam from the Heat contained in Slags. |
| GB223533A (en) * | 1923-10-16 | 1925-08-20 | Arbed | Improvements in or relating to the method of and apparatus for the treatment of molten slag, metals or the like |
| CN201770710U (en) * | 2010-08-13 | 2011-03-23 | 宋涛 | Heat recovery device of liquid blast furnace slag |
| CN203625395U (en) * | 2013-12-06 | 2014-06-04 | 无锡市东方环境工程设计研究所有限公司 | Liquid-state blast furnace slag granulation and multi-roller waste heat recovery system |
| CN104404179A (en) * | 2014-10-18 | 2015-03-11 | 郑州轻工业学院 | Liquid high temperature material waste heat recovery unit |
| CN108165686A (en) * | 2018-01-13 | 2018-06-15 | 秦皇岛点知汇科技有限公司 | A kind of drum-type slag granulation and residual neat recovering system |
| CN207973711U (en) * | 2018-03-16 | 2018-10-16 | 新能能源有限公司 | Fluidized-bed gasification furnace stable state slag-draining device |
| CN210485660U (en) * | 2019-07-29 | 2020-05-08 | 山东昊通节能服务股份有限公司 | High-temperature solid material waste heat conversion device |
| CN211823882U (en) * | 2020-02-18 | 2020-10-30 | 思源交大河北科技有限公司 | High-temperature pellet cooling treatment device |
| CN213207804U (en) * | 2020-05-20 | 2021-05-14 | 义马环保电力有限公司 | Boiler slag heat recovery device |
Non-Patent Citations (2)
| Title |
|---|
| 一色尚次: "《节能101例》", 31 December 1985, 烃加工出版社, pages: 127 - 128 * |
| 陈祥明等: "《绿色能源与低碳生活》", 30 November 2011, 时代出版传媒股份有限公司, pages: 175 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115752030A (en) * | 2022-12-20 | 2023-03-07 | 成都永会利机械制造有限公司 | High-temperature slag waste heat recovery boiler |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102057060B (en) | Process and device for producing pig iron or liquid steel precursors | |
| CN1317398C (en) | Start method for directly smelting technology | |
| CN105238938A (en) | Three continuous furnace technology for continuous production of anode copper with copper concentrate | |
| CN104498731B (en) | A kind of method and apparatus of the solid sulfur melting of oxygen-enriched side-blowing low-temperature alkali | |
| CN108267013B (en) | Sinter cooling and waste heat utilization system and low-oxygen full-circulation cooling method | |
| CN107377598A (en) | Disposal of Electronic Wastes recovery system | |
| CN114576604A (en) | Hot-melt slag gasification boiler heat recovery system and use method thereof | |
| CN201713555U (en) | Combined type refining furnace for continuously producing mixed cropper regeneration casting anode plates | |
| CN105002371A (en) | Process for producing anode copper by adoption of four connected furnaces | |
| CN201583139U (en) | Smelting furnace group capable of efficiently and continuously producing reborn aluminium alloy | |
| CN102776383A (en) | Method for smelting crude lead in oxygen-enriched side-blowing smelting furnace | |
| WO2009009960A1 (en) | Asphalt melting apparatus and method | |
| CN107828968A (en) | A kind of low-grade copper scap cleaning novel process for smelting and its device | |
| CN201043182Y (en) | Electrical heated equipment for direct reduction of sponge iron | |
| CN106892429A (en) | A kind of method of furnace of calcium carbide and production calcium carbide | |
| CN104192799A (en) | Device for preparing hydrogen-rich gas by gasifying biomass under catalysis of high-temperature metallurgical slag particles and method | |
| CN111187920A (en) | Continuous copper smelting system and method | |
| CN201520639U (en) | Continuous sulfur paste processing device | |
| CN207537559U (en) | A kind of cathode copper mechanized production system | |
| CN110042250B (en) | Cold aluminum slag regeneration recycling system and cold aluminum slag regeneration method | |
| CN109777519B (en) | Blast furnace slag waste heat driving gasification reaction system | |
| CN210085533U (en) | Cold aluminium sediment regeneration cyclic utilization system | |
| CN102382985A (en) | Thin aluminum material recovery melting device | |
| CN202246795U (en) | Aluminum thin material regenerative recovery smelting device | |
| CN213421863U (en) | Feeding mechanism of electric arc 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 |