CN210711593U - Metallurgical slag micro powder process system - Google Patents
Metallurgical slag micro powder process system Download PDFInfo
- Publication number
- CN210711593U CN210711593U CN201921764499.8U CN201921764499U CN210711593U CN 210711593 U CN210711593 U CN 210711593U CN 201921764499 U CN201921764499 U CN 201921764499U CN 210711593 U CN210711593 U CN 210711593U
- Authority
- CN
- China
- Prior art keywords
- powder
- draught fan
- mill
- ware
- gas outlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
Abstract
The utility model discloses a metallurgical sediment miropowder powder process system, including the hot-blast furnace, the mill, receive the powder device, the exhaust emission pipeline, receive the powder device including first receipts powder ware, the powder ware is received to the second, first draught fan, the second draught fan, hot-blast furnace exhanst gas outlet and mill flue gas entry linkage, the mill discharge gate passes through the gas flow distributor respectively with first receipts powder ware pan feeding mouth, the powder ware pan feeding mouth is received to the second and is connected, first receipts powder ware exhanst gas outlet is connected with first draught fan air inlet, first draught fan gas outlet is connected with the exhaust emission pipeline, the powder ware exhanst gas outlet is received to the second and is connected with second draught fan air inlet, second draught fan gas outlet is connected with the backflow pipeline, backflow pipeline and mill flue gas entry linkage. The hot blast stove of the powder making system takes pulverized coal and coal gangue as fuels, can effectively filter particulate matters in the waste gas of the hot blast stove, and meets the waste gas emission standard of enterprises.
Description
Technical Field
The utility model relates to a metallurgical sediment miropowder powder process system.
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.
In the prior art, the ignition fuel of the direct heating hot blast stove mainly comprises heavy oil, converter gas, synthetic gas, coke oven gas, blast furnace gas, natural gas and the like, and a small amount of small production lines use coal powder and coal gangue. With the rise of large production lines, the fuel cost advantage of hot blast stoves using coal powder and coal gangue as fuels is more and more obvious. The hot blast stove using coal powder and coal gangue as fuel has the defect that the concentration of particulate matters in waste gas is high and can reach 500-1000g/m3. The conventional powder collecting device cannot be adoptedParticulate matters in the waste gas of the hot blast stove can be effectively filtered, and the exhaust emission standard of enterprises can not be met.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: the utility model aims at providing a metallurgical sediment miropowder powder process system, this powder process system hot-blast furnace use buggy, gangue as the fuel, can effectively filter particulate matter in the hot-blast furnace waste gas, satisfy the exhaust emission standard of enterprise.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a metallurgical sediment miropowder pulverizing system, including the hot-blast furnace, the mill, receive the powder device, the exhaust emission pipeline, receive the powder device including first receipts powder ware, the powder ware is received to the second, first draught fan, the second draught fan, the hot-blast furnace exhanst gas outlet is connected with mill flue gas entry, the mill discharge gate passes through gas flow distributor respectively with first receipts powder ware pan feeding mouth, the powder ware pan feeding mouth is received to the second and is connected, first receipts powder ware exhaust outlet is connected with first draught fan air inlet, first draught fan gas outlet and exhaust emission pipeline connection, the powder ware exhaust outlet is received to the second and second draught fan air inlet is connected, second draught fan gas outlet and backflow pipeline are connected, backflow pipeline and mill flue gas entry connection.
Furthermore, the first powder collector and the second powder collector both adopt bag-type powder collectors.
Further, the mill is a vertical mill.
Has the advantages that: adopt the utility model discloses a slay, slag miropowder powder process system sets up between mill discharge gate and the exhaust emission pipeline and receives the powder device, receives the powder device and adopts two to receive powder ware parallel connection, carries out meticulous filtration to a small amount of flue gas through first receipts powder ware, and all the other flue gases receive the powder ware through the second and carry out the colating, and the flue gas after the colating flows back to mill inner loop through the return line and utilizes, then filters once more, can effectively filter particulate matter in the hot-blast furnace waste gas, satisfies the exhaust emission standard of enterprise.
Drawings
FIG. 1 is a schematic structural view of the present invention;
in the figure: 1-hot blast stove; 2-grinding; 3-exhaust gas discharge line; 4-a first powder collector; 5-a second powder collector; 6-a first induced draft fan; 7-a second induced draft fan; 8-a return line; 9-gas flow distributor.
The specific implementation mode is as follows:
the present invention will be further explained with reference to the accompanying drawings.
As shown in fig. 1, the utility model discloses a metallurgical sediment miropowder powder process system, including hot-blast furnace 1, mill 2, receive the powder device, exhaust emission pipeline 3, receive the powder device including first receipts powder ware 4, the powder ware 5 is received to the second, first draught fan 6, second draught fan 7, 1 exhanst gas outlet of hot-blast furnace and 2 flue gas entry linkage of mill, 2 discharge gates of mill pass through gas flow distributor 9 respectively with first receipts powder ware 4 pan feeding mouth, the second is received the powder ware 5 pan feeding mouth and is connected, first receipts powder ware 4 exhanst gas outlet and first draught fan 6 air inlet connection, 6 gas outlets of first draught fan are connected with exhaust emission pipeline 3, the second is received powder ware 5 exhanst gas outlet and is connected with 7 air inlets of second draught fan, 7 gas outlets of second draught fan are connected with backflow pipeline 8, backflow pipeline 8 and 2 flue gas entry linkage of mill.
When the powder making system works, high-temperature hot flue gas provided by the hot blast stove 1 dries metallurgical slag micro powder in the mill 2, then the flue gas carrying the metallurgical slag micro powder is divided into two parts by the gas flow distributor 9, a small amount (30%) of flue gas is sent to the first powder collector 4, and the small amount of flue gas is finely filtered by the first powder collector 4, so that the concentration of particulate matters is reduced to 5-10g/m3Then the flue gas is introduced into a waste gas discharge pipeline 3, the rest (70%) of the flue gas is sent into a second powder collecting device 5, and the particles in the flue gas are coarsely filtered by the second powder collecting device 5, so that the concentration of the particles is reduced to 200g/m3And the flue gas after rough filtration flows back to the mill 2 through a return pipeline 8 for recycling, and then is filtered again.
In this embodiment, the first powder collector 4 has a small dust handling capacity, and a small and medium-sized bag type powder collector is used, and the second powder collector 5 has a large dust handling capacity, and a large bag type powder collector is used. The mill adopts a large vertical mill integrating powder, drying and grading conveying.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of 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 (3)
1. The utility model provides a metallurgical sediment miropowder powder process system, includes hot-blast furnace (1), mill (2), receives powder device, exhaust emission pipeline (3), its characterized in that: receive the powder device and include first receipts powder ware (4), powder ware (5) is received to the second, first draught fan (6), second draught fan (7), hot-blast furnace (1) exhanst gas outlet and mill (2) flue gas entry linkage, mill (2) discharge gate pass through gas flow distributor (9) respectively with first receipts powder ware (4) pan feeding mouth, powder ware (5) pan feeding mouth is received to the second is connected, first receipts powder ware (4) exhaust outlet is connected with first draught fan (6) air inlet, first draught fan (6) gas outlet is connected with exhaust emission pipeline (3), powder ware (5) exhaust outlet is received to the second and second draught fan (7) air inlet is connected, second draught fan (7) gas outlet is connected with return line (8), return line (8) and mill (2) flue gas entry linkage.
2. The metallurgical slag micropowder pulverizing system of claim 1, which is characterized in that: the first powder collecting device (4) and the second powder collecting device (5) both adopt bag type powder collecting devices.
3. The metallurgical slag micropowder pulverizing system of claim 1, which is characterized in that: the mill (2) is a vertical mill.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921764499.8U CN210711593U (en) | 2019-10-21 | 2019-10-21 | Metallurgical slag micro powder process system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921764499.8U CN210711593U (en) | 2019-10-21 | 2019-10-21 | Metallurgical slag micro powder process system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210711593U true CN210711593U (en) | 2020-06-09 |
Family
ID=70928638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921764499.8U Active CN210711593U (en) | 2019-10-21 | 2019-10-21 | Metallurgical slag micro powder process system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210711593U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115094168A (en) * | 2022-06-02 | 2022-09-23 | 中节能工业节能有限公司 | Slag recovery system |
-
2019
- 2019-10-21 CN CN201921764499.8U patent/CN210711593U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115094168A (en) * | 2022-06-02 | 2022-09-23 | 中节能工业节能有限公司 | Slag recovery system |
| CN115094168B (en) * | 2022-06-02 | 2024-02-20 | 中节能工业节能有限公司 | Slag recovery system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101122442B (en) | Iron mineral suspended magnetic baking oven system and baking process | |
| CN102628097B (en) | Method for preparing iron concentrate powder by reducing and magnetizing red mud in fluidized bed | |
| CN110694772B (en) | Production process of slag and steel slag micropowder | |
| CN108239700A (en) | A kind of coal base fluidization reduction roasting system and its method of roasting | |
| CN105195272A (en) | Single-linkage device and method for low-temperature drying, ore grinding and graded powder collection of chromite | |
| CN108380360A (en) | A kind of high-quality steel slag iron fine powder production technology | |
| CN210711593U (en) | Metallurgical slag micro powder process system | |
| CN108502884A (en) | A method of producing the grey mix and convert calcium lime powder pressure ball molding of calcium carbide furnace of calcium carbide purification | |
| CN205095889U (en) | Powder device is received to simply connected chrome iron ore low temperature drying grind grading | |
| CN103486867A (en) | Bypass process and system for cement kiln | |
| CN111744670B (en) | Method for preparing iron ore concentrate and aluminum ore concentrate by suspension co-roasting of red mud and coal gangue | |
| CN210935345U (en) | Slag and steel slag micro powder making system | |
| CN101716548B (en) | Grinding system used for extracting vanadium from stone coal | |
| CN205152076U (en) | Electrolytic manganese sediment utilization system | |
| CN207973788U (en) | A kind of coal base fluidization reduction roasting system | |
| CN207552397U (en) | A kind of iron ore fluidization suspension preheating prereduction device | |
| CN211011446U (en) | Denitration and desulfurization device of metallurgical waste residue micro powder preparation system | |
| CN211198619U (en) | Energy-conserving efficient carbide production system | |
| CN103878057A (en) | Novel preparation process of limestone powder for in-furnace desulphurization of circulating fluidized bed | |
| CN111548029B (en) | Preparation method of metallurgical waste residue micro powder | |
| CN203095880U (en) | Equipment for producing cement and trapping CO2 by using airtight annular calcining furnace | |
| CN205095923U (en) | Powder device is received to chrome iron ore low temperature drying grind gradings that ally oneself with more | |
| CN102745915B (en) | Production device and method of resource regeneration type high activity lime | |
| CN208150976U (en) | Handle the device of calcium carbide purifying and dedusting ash | |
| CN201811263U (en) | Full N2 circulation equipment for preparing soft coal powder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |