CN111548029B - Preparation method of metallurgical waste residue micro powder - Google Patents
Preparation method of metallurgical waste residue micro powder Download PDFInfo
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- CN111548029B CN111548029B CN202010427720.1A CN202010427720A CN111548029B CN 111548029 B CN111548029 B CN 111548029B CN 202010427720 A CN202010427720 A CN 202010427720A CN 111548029 B CN111548029 B CN 111548029B
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- waste residue
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- 239000000843 powder Substances 0.000 title claims abstract description 68
- 239000002699 waste material Substances 0.000 title claims abstract description 41
- 238000002360 preparation method Methods 0.000 title claims abstract description 21
- 239000007789 gas Substances 0.000 claims abstract description 74
- 239000002912 waste gas Substances 0.000 claims abstract description 31
- 239000002893 slag Substances 0.000 claims description 31
- 229910000831 Steel Inorganic materials 0.000 claims description 12
- 239000010959 steel Substances 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 7
- 238000002485 combustion reaction Methods 0.000 claims description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 6
- 239000000446 fuel Substances 0.000 claims description 5
- 239000000779 smoke Substances 0.000 claims description 4
- 239000003034 coal gas Substances 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 3
- 239000003345 natural gas Substances 0.000 claims description 3
- 238000005265 energy consumption Methods 0.000 abstract description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 4
- 239000003546 flue gas Substances 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 239000004568 cement Substances 0.000 description 3
- 238000000227 grinding Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- JHLNERQLKQQLRZ-UHFFFAOYSA-N calcium silicate Chemical compound [Ca+2].[Ca+2].[O-][Si]([O-])([O-])[O-] JHLNERQLKQQLRZ-UHFFFAOYSA-N 0.000 description 2
- 235000012241 calcium silicate Nutrition 0.000 description 2
- 229910052918 calcium silicate Inorganic materials 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- BCAARMUWIRURQS-UHFFFAOYSA-N dicalcium;oxocalcium;silicate Chemical compound [Ca+2].[Ca+2].[Ca]=O.[O-][Si]([O-])([O-])[O-] BCAARMUWIRURQS-UHFFFAOYSA-N 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 229910001678 gehlenite Inorganic materials 0.000 description 1
- 238000001879 gelation Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- -1 iron aluminate Chemical class 0.000 description 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 235000019976 tricalcium silicate Nutrition 0.000 description 1
- 229910021534 tricalcium silicate Inorganic materials 0.000 description 1
- 239000010456 wollastonite Substances 0.000 description 1
- 229910052882 wollastonite Inorganic materials 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B5/00—Treatment of metallurgical slag ; Artificial stone from molten metallurgical slag
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B7/00—Hydraulic cements
- C04B7/14—Cements containing slag
- C04B7/147—Metallurgical slag
- C04B7/153—Mixtures thereof with other inorganic cementitious materials or other activators
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B7/00—Hydraulic cements
- C04B7/36—Manufacture of hydraulic cements in general
- C04B7/38—Preparing or treating the raw materials individually or as batches, e.g. mixing with fuel
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B7/00—Hydraulic cements
- C04B7/36—Manufacture of hydraulic cements in general
- C04B7/38—Preparing or treating the raw materials individually or as batches, e.g. mixing with fuel
- C04B7/40—Dehydrating; Forming, e.g. granulating
-
- 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
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The invention discloses a preparation method of metallurgical waste residue micro powder, which comprises the following steps: crushing metallurgical waste residues in a mill to form metallurgical waste residue micro powder; the metallurgical waste residue micro powder is dried by the waste gas discharged by the gas turbine, and the dried metallurgical waste residue micro powder is carried to a powder collecting device; and connecting the waste gas discharge port of the powder collecting device with the suction inlet of a gas compressor of the gas turbine, and extracting waste gas in the powder collecting device through the gas compressor of the gas turbine. The invention utilizes the gas turbine to replace an air exhaust fan at the air outlet side of the powder collecting device and a hot blast stove adopted by the existing metallurgical waste residue micro powder preparation method, thereby greatly saving energy consumption.
Description
Technical Field
The invention relates to a preparation process of metallurgical waste residue micro powder.
Background
The metallurgical waste slag refers to various solid wastes generated in the production process of metallurgical industry, including slag, steel slag and the like. The slag and steel slag micropowder is ultrafine powder obtained by grinding blast furnace granulated slag and steel slag. The chemical components of the slag micro powder are mainly silicon dioxide, aluminum oxide, calcium oxide, magnesium oxide, ferric oxide, titanium dioxide, manganese dioxide and the like; contains more than 95 percent of glass body and minerals such as dicalcium silicate, gehlenite, wollastonite and the like, and has the components close to those of cement; the steel slag micro powder mainly comprises oxides such as calcium, iron, silicon, magnesium, aluminum, manganese, phosphorus and the like, contains active mineral substances such as tricalcium silicate, dicalcium silicate, iron aluminate and the like similar to cement, and has hydraulic gelation property. The slag and steel slag micropowder has ultrahigh activity, is used as a high-quality admixture for cement and concrete, and is a novel green building material.
The production process flow of the metallurgical slag micro powder at present comprises the following steps: conveying the metallurgical waste residues to a storage yard by an automobile, conveying the metallurgical waste residues to a raw material warehouse by conveying equipment, and feeding the slag and the steel slag stored in the raw material warehouse into a mill by the conveying equipment; the slag and the steel slag are crushed in the mill and dried at the same time, the qualified micro powder is collected by the powder collecting device, and the collected finished slag powder is conveyed to a finished product warehouse by the conveying equipment.
In the process of powder preparation and grinding, a hot-blast stove is directly heated to provide high-temperature hot flue gas, slag and steel slag micro powder is dried, and a hot flue gas medium for carrying powder is provided. The dust particles in the flue gas are collected through the dust collecting device, so that the filtering of the particulate matters in the waste gas of the hot blast stove is realized.
At present, metallurgical waste residue micro powder preparation system equipment belongs to energy consumption households, wherein an exhaust fan on an air outlet side of a powder collecting device is driven by electric energy, the power consumption of a metallurgical plant is greatly influenced, and the gas consumption of a hot blast stove per hour reaches three thousand cubic meters.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to provide an improved preparation method of metallurgical waste residue micro powder, which utilizes a gas turbine to replace an exhaust fan at the air outlet side of a powder collecting device and a hot blast furnace, thereby saving energy consumption.
In order to achieve the purpose, the invention adopts the following technical scheme: a preparation method of metallurgical waste residue micro powder is characterized by comprising the following steps: crushing metallurgical waste residues in a mill to form metallurgical waste residue micro powder; the metallurgical waste residue micro powder is dried by the waste gas discharged by the gas turbine, and the dried metallurgical waste residue micro powder is carried to a powder collecting device; and connecting the waste gas discharge port of the powder collecting device with the suction inlet of a gas compressor of the gas turbine, and extracting waste gas in the powder collecting device through the gas compressor of the gas turbine.
Further, in the preparation method, the mixed gas of air and gas fuel and the waste gas extracted by the air compressor are introduced into a combustion chamber of the gas turbine together for combustion to generate high-temperature gas, the high-temperature gas does work in the gas turbine to form waste gas, and the waste gas is discharged through a waste gas discharge port of the gas turbine and then introduced into a smoke inlet of the mill.
Further, in the preparation method, the power of the gas turbine is 2000-2500 KW, the pressure of a suction inlet of a compressor of the gas turbine is controlled to be-8.5-7 Kpa, and the pressure of a waste gas discharge outlet of the gas turbine is 1 Kpa.
Further, in the preparation method, the gas fuel is coal gas or natural gas.
Further, in the preparation method, the metallurgical slag is slag or/and steel slag.
Further, in the preparation method, the mill is a vertical mill
Further, in the preparation method, the powder collecting device is a cloth bag powder collector.
Has the advantages that: according to the preparation method of the metallurgical waste residue micro powder, the exhaust fan at the air outlet side of the powder collecting device and the hot blast stove are replaced by the gas turbine, the metallurgical waste residue micro powder is dried by the waste gas discharged by the gas turbine, the dried metallurgical waste residue micro powder is carried to the powder collecting device, and the waste gas in the powder collecting device is extracted by the gas compressor of the gas turbine, so that the energy consumption of equipment is greatly reduced.
Drawings
FIG. 1 is a schematic view of the equipment used in the method for preparing metallurgical waste residue micropowder.
In the figure: 1-grinding; 2-a powder collecting device; 3-gas turbine.
The specific implementation mode is as follows:
the invention is further explained below with reference to the drawings.
As shown in figure 1, the preparation method of the metallurgical waste residue micro powder is completed by adopting a mill, a powder collecting device and a gas turbine. The gas turbine replaces an exhaust fan arranged on the air outlet side of the powder collecting device and a hot blast stove used for drying slag and steel slag micro powder and providing hot flue gas medium for carrying powder, which are adopted in the existing metallurgical waste slag micro powder preparation process. The waste gas discharge port of the gas turbine is connected with the smoke inlet of the mill, and the waste gas discharge port of the powder collecting device is connected with the suction inlet of the gas compressor of the gas turbine.
The metallurgical slag is slag or/and steel slag. The mill adopts a vertical mill. The powder collecting device adopts a cloth bag powder collecting device. When the mill works, the metallurgical waste residue is crushed in the mill to form metallurgical waste residue micro powder, the metallurgical waste residue micro powder is dried by waste gas discharged by the gas turbine, and the dried metallurgical waste residue micro powder is carried to the powder collecting device; and then extracting waste gas in the powder collecting device by a gas compressor of the gas turbine.
The power of the gas turbine is 2000-2500 KW, the pressure of a suction inlet of a gas compressor of the gas turbine is controlled to be-8.5-7 Kpa, and the pressure of a waste gas discharge outlet of the gas turbine is 1 Kpa. The gas fuel can adopt coal gas or natural gas. When the gas turbine works, mixed gas of air and gas fuel and waste gas extracted by the air compressor are introduced into a combustion chamber of the gas turbine together for combustion to generate high-temperature gas, the high-temperature gas does work in the gas turbine to form waste gas, and the waste gas is discharged through a waste gas discharge port of the gas turbine and then introduced into a smoke inlet of the mill.
By adopting the preparation method of the metallurgical waste residue micro powder, the exhaust fan at the air outlet side of the powder collecting device and the hot blast stove are replaced by the gas turbine, so that the energy consumption of equipment is greatly reduced. By taking the gas consumption as an example, the existing metallurgical waste residue micro powder preparation method is adopted for production, the gas consumption of the hot blast stove per hour reaches more than three thousand cubic meters, after the gas turbine is adopted for replacement, the gas consumption is obviously reduced, the gas turbine is connected with a generator, the power generated by the gas consumption per cubic meter can generate one-degree electricity, and the economic effect is obvious.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (6)
1. A preparation method of metallurgical waste residue micro powder is characterized by comprising the following steps: crushing metallurgical waste residues in a mill to form metallurgical waste residue micro powder; the metallurgical waste residue micro powder is dried by the waste gas discharged by the gas turbine, and the dried metallurgical waste residue micro powder is carried to a powder collecting device; connecting a waste gas discharge port of the powder collecting device with a suction inlet of a gas compressor of the gas turbine, and extracting waste gas in the powder collecting device through the gas compressor of the gas turbine; the mixed gas of air and gas fuel and the waste gas extracted by the air compressor are introduced into a combustion chamber of the gas turbine together for combustion to generate high-temperature gas, the high-temperature gas does work in the gas turbine to form waste gas, and the waste gas is discharged through a waste gas discharge port of the gas turbine and then introduced into a smoke inlet of the mill.
2. The method for preparing metallurgical waste residue micropowder according to claim 1, characterized by comprising the following steps: the power of the gas turbine is 2000-2500 KW, the pressure of a suction inlet of a gas compressor of the gas turbine is controlled to be-8.5-7 Kpa, and the pressure of a waste gas discharge outlet of the gas turbine is 1 Kpa.
3. The method for preparing metallurgical waste residue micropowder according to claim 2, characterized by comprising the following steps: the gas fuel is coal gas or natural gas.
4. The method for preparing metallurgical waste residue micropowder according to claim 2, characterized by comprising the following steps: the metallurgical slag is slag or/and steel slag.
5. The method for preparing metallurgical waste residue micropowder according to claim 2, characterized by comprising the following steps: the mill is a vertical mill.
6. The method for preparing metallurgical waste residue micropowder according to claim 2, characterized by comprising the following steps: the powder collecting device is a cloth bag powder collecting device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010427720.1A CN111548029B (en) | 2020-05-20 | 2020-05-20 | Preparation method of metallurgical waste residue micro powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010427720.1A CN111548029B (en) | 2020-05-20 | 2020-05-20 | Preparation method of metallurgical waste residue micro powder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111548029A CN111548029A (en) | 2020-08-18 |
| CN111548029B true CN111548029B (en) | 2022-04-01 |
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Family Applications (1)
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| CN202010427720.1A Active CN111548029B (en) | 2020-05-20 | 2020-05-20 | Preparation method of metallurgical waste residue micro powder |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003044350A1 (en) * | 2001-11-22 | 2003-05-30 | Sanyo Chemical Industries, Ltd. | Drying machine system utilizing gas turbine, and method of use |
| CN102500604A (en) * | 2011-11-28 | 2012-06-20 | 辽宁科技大学 | Household solid garbage recycling and renewable biological carbon circulating technology |
| CN103170398A (en) * | 2013-03-26 | 2013-06-26 | 上海理工大学 | Drying and crushing machine system using waste heat of micro power station |
| CN103539333A (en) * | 2013-10-28 | 2014-01-29 | 凤阳海泰科能源环境管理服务有限公司 | System and method for drying sludge through waste heat of gas turbine |
| CN106050418A (en) * | 2016-07-13 | 2016-10-26 | 上海电气燃气轮机有限公司 | Waste gas recycling system of gas turbine and work method of waste gas recycling system |
| CN110694772A (en) * | 2019-10-21 | 2020-01-17 | 大峘集团有限公司 | Production process of slag and steel slag micropowder |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105445007B (en) * | 2015-11-23 | 2017-09-29 | 沈阳黎明航空发动机(集团)有限责任公司 | A kind of gas turbine gaseous fuel control valve Flow characteristic test system and method |
-
2020
- 2020-05-20 CN CN202010427720.1A patent/CN111548029B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003044350A1 (en) * | 2001-11-22 | 2003-05-30 | Sanyo Chemical Industries, Ltd. | Drying machine system utilizing gas turbine, and method of use |
| CN102500604A (en) * | 2011-11-28 | 2012-06-20 | 辽宁科技大学 | Household solid garbage recycling and renewable biological carbon circulating technology |
| CN103170398A (en) * | 2013-03-26 | 2013-06-26 | 上海理工大学 | Drying and crushing machine system using waste heat of micro power station |
| CN103539333A (en) * | 2013-10-28 | 2014-01-29 | 凤阳海泰科能源环境管理服务有限公司 | System and method for drying sludge through waste heat of gas turbine |
| CN106050418A (en) * | 2016-07-13 | 2016-10-26 | 上海电气燃气轮机有限公司 | Waste gas recycling system of gas turbine and work method of waste gas recycling system |
| CN110694772A (en) * | 2019-10-21 | 2020-01-17 | 大峘集团有限公司 | Production process of slag and steel slag micropowder |
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| CN111548029A (en) | 2020-08-18 |
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