CN205419100U - High slag thick liquid conveying system - Google Patents
High slag thick liquid conveying system Download PDFInfo
- Publication number
- CN205419100U CN205419100U CN201620192724.5U CN201620192724U CN205419100U CN 205419100 U CN205419100 U CN 205419100U CN 201620192724 U CN201620192724 U CN 201620192724U CN 205419100 U CN205419100 U CN 205419100U
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- Prior art keywords
- frequency drive
- thick liquid
- pulp pump
- slurry
- blast furnace
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- 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
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The utility model relates to a high slag thick liquid conveying system, including blast furnace granulation tower, blast furnace granulation tower in be provided with the granulation ware, one side of blast furnace granulation tower is provided with slag inlet, and the top is provided with the water inlet, blast furnace granulation tower in still be provided with pressure transmitter, blast furnace granulation tower bottom be provided with two thick liquid pipelines of slagging tap, thick liquid pipe connection is slagged tap to one of them strip has a main variable frequency drive sediment stuff pump, another thick liquid pipe connection of slagging tap there is a subsidiary variable frequency drive sediment stuff pump, main variable frequency drive sediment stuff pump, assist variable frequency drive sediment stuff pump and all be connected with sediment thick liquid transport pipe way, main variable frequency drive sediment stuff pump, assist variable frequency drive sediment stuff pump and be connected to the respective sediment stuff pump converter of control respectively, pressure transmitter be connected to local digital display liquid level meter, local digital display liquid level meter be connected to the input of signal isolation distributor through shielded cable, two way outputs of signal isolation distributor insert respectively two sediment stuff pump converters.
Description
Technical field
This utility model belongs to steel smelting equipment technical field, is specifically related to the induction system in a kind of steel smelting procedure, especially a kind of blast furnace dregs thick liquid expulsion system；Realize the conveying of blast furnace process molten iron slag full water quenching granulating slurry, drought slag zero-emission, while improving environmental benefit, reduce production cost.
Background technology
In steel manufacture process, water cooling is the most vital technique process, it may be said that from ironmaking to steel-making, all be unable to do without water cooling from making steel to steel rolling.
Produced a large amount of scum, slags in steel manufacture process, after water cooling, forming the mixture-slurry of scum, slag and water, the slurry at every moment produced in production needs to transport the most continuously, and iron and steel produces the continuous high and stable yields of line just can be carried out.
Adjust or charge composition structural change yet with smelting process for production, and trial production and cost declining new process such as strong power smelt the quantity of slag variation abnormality caused, and cause the fluctuation of slurry conveying capacity acutely；On the other hand, owing in slurry, pellet hardness is relatively big, Pulp pump conveying equipment (pump housing with impeller, draw slurry pipeline and conveyance conduit) institute is frayed acutely, easily leaks damage and even scraps.These two aspects reason all can have a strong impact on Pulp pump conveying capacity and even causes drought slag discharge or be forced damping down, and normal production is smelted in impact；This is prior art weak point.
Therefore it provides a kind of blast furnace dregs thick liquid expulsion system of design, to solve above-mentioned technical problem, it is necessary.
Utility model content
The purpose of this utility model is, the Pulp pump existed for above-mentioned prior art can not be according to the slurry amount of actual output, so that slurry to transport out of the defect of production line timely and effectively, it is provided that a kind of blast furnace dregs thick liquid expulsion system of design, to solve above-mentioned technical problem；Realize the conveying of blast furnace process molten iron slag full water quenching granulating slurry, drought slag zero-emission, while improving environmental benefit, reduce production cost.
For achieving the above object, this utility model provides techniques below scheme:
A kind of blast furnace dregs thick liquid expulsion system, including granulated blast-furnace tower, is provided with pelletizer in described granulated blast-furnace tower, the side of described granulated blast-furnace tower is provided with slag inlet, and top is provided with water inlet；It is characterized in that: in described granulated blast-furnace tower, be additionally provided with pressure transmitter; described granulated blast-furnace tower bottom is provided with two and goes out slurry pipeline; wherein one go out slurry pipeline connect have main Frequency Drive Pulp pump; another goes out the connection of slurry pipeline auxiliary Frequency Drive Pulp pump; described main Frequency Drive Pulp pump, auxiliary Frequency Drive Pulp pump are respectively connected with slurry transport pipeline, and described main Frequency Drive Pulp pump, auxiliary Frequency Drive Pulp pump are respectively connecting to control respective Pulp pump converter；
Described pressure transmitter is connected to local digital display level meter, and described local digital display level meter is connected to the input of signal isolation allotter by shielded cable, and the two-way outfan of signal isolation allotter is respectively connected to described two Pulp pump converter.
Preferably, it is filled with high-abrasive material overcoat in described slurry transport pipeline；To prevent the strength of scum slurry from wearing and tearing, improve service life.
Preferably, described high-abrasive material overcoat is wear resistant protective ceramic layer；Further enhance the protection effect to slurry transport pipeline.
Preferably, the thickness of described wear resistant protective ceramic layer is 5mm to 10mm.
Preferably, the thickness of described wear resistant protective ceramic layer is 8mm.
This utility model gives the control method of a kind of blast furnace dregs thick liquid expulsion system, comprises the following steps:
S1: slurry liquid level in detection granulated blast-furnace tower: by slurry liquid level in the pressure transmitter detection tower of setting in granulated blast-furnace tower；
S2: the slurry liquid level detected is analyzed, and make corresponding operating: the slurry liquid level elevation information collected is sent to local digital display level meter by pressure transmitter, the slurry liquid level collected is carried out locally displayed by local digital display level meter, slurry liquid level elevation information is sent to two Pulp pump converters by the most local digital display level meter by signal isolation allotter, if be detected that slurry liquid level within the scope of preset height, then continue to be carried out the transport of slurry by main Frequency Drive Pulp pump, if be detected that slurry liquid level beyond preset height, then start auxiliary Frequency Drive Pulp pump, by main Frequency Drive Pulp pump, auxiliary Frequency Drive Pulp pump transports slurry jointly.
The beneficial effects of the utility model are, use two Frequency Drive Pulp pump independently PID to regulate AC frequency conversion transmission, and then based on the major-minor operation of Liquid level two pumps, in good time automatic start-stop, thus realize slurry and carry automatic model-following control；It is automatically obtained major-minor pump startup based on liquid level regulation to stop controlling; it is automatically adjusted slurry conveying capacity size; thus realize dregs thick liquid expulsion system and automatically follow the quantity of slag fluctuation that production technology adjustment variation causes with plant issue; realize the conveying of blast furnace process molten iron slag full water quenching granulating slurry; drought slag zero-emission, environmental benefit and production cost declining remarkable benefit.
Additionally, this utility model design principle is reliable, simple in construction, there is application prospect widely.
As can be seen here, this utility model compared with prior art, has substantive distinguishing features and progress, and its beneficial effect implemented also is apparent from.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of blast furnace dregs thick liquid expulsion system that this utility model provides.
Fig. 2 is the control principle drawing of a kind of blast furnace dregs thick liquid expulsion system that this utility model provides.
Fig. 3 is the theory diagram of Pulp pump converter in Fig. 2.
Wherein, 1-granulated blast-furnace tower, 2-pelletizer, 3-slag inlet, 4-water inlet; 5-pressure transmitter, 6-goes out slurry pipeline, 7-main Frequency Drive Pulp pump, 8-auxiliary Frequency Drive Pulp pump; 9-Pulp pump converter, 10-this locality digital display level meter, 11-signal isolation allotter, 12-slurry transport pipeline.
Detailed description of the invention
The utility model is elaborated below in conjunction with the accompanying drawings and by specific embodiment, and following example are to explanation of the present utility model, and this utility model is not limited to implementation below.
As shown in Figures 1 to 3, a kind of blast furnace dregs thick liquid expulsion system that this utility model provides, including granulated blast-furnace tower 1, in described granulated blast-furnace tower 1, it is provided with pelletizer 2, the side of described granulated blast-furnace tower 1 is provided with slag inlet 3, and top is provided with water inlet 4；It is additionally provided with pressure transmitter 5 in described granulated blast-furnace tower 1; it is provided with two bottom described granulated blast-furnace tower 1 and goes out slurry pipeline 6; wherein one go out slurry pipeline connect have main Frequency Drive Pulp pump 7; another goes out the connection of slurry pipeline auxiliary Frequency Drive Pulp pump 8; described main Frequency Drive Pulp pump 7, auxiliary Frequency Drive Pulp pump 8 are respectively connected with slurry transport pipeline 12, and described main Frequency Drive Pulp pump 7, auxiliary Frequency Drive Pulp pump 8 are respectively connecting to control respective Pulp pump converter 9；
Described pressure transmitter 5 is connected to local digital display level meter 10, described local digital display level meter 10 is connected to the input of signal isolation allotter 11 by shielded cable, and the two-way outfan of signal isolation allotter 11 is respectively connected to described two Pulp pump converter 9.
In the present embodiment, in described slurry transport pipeline 12, it is filled with high-abrasive material overcoat；To prevent the strength of scum slurry from wearing and tearing, improve service life.
In the present embodiment, described high-abrasive material overcoat is wear resistant protective ceramic layer；Further enhance the protection effect to slurry transport pipeline.
In the present embodiment, the thickness of described wear resistant protective ceramic layer is 8mm.
In other embodiments, the thickness of described wear resistant protective ceramic layer is 5mm or 10mm.
In the present embodiment, the analog input signal of Pulp pump converter has passage AI1 and AI2, AI1 and accesses potentiometer, 0-10V voltage signal, and artificial knob manually regulates；AI2 accesses on-the-spot granulated blast-furnace tower slurry liquid level signal, as the feedback signal of actual liquid level, compares with the desired value set and then controls converter as control signal regulation, i.e. realize liquid level PID auto-adjustment control.The most automatic two kinds of control modes are by permutator artificial selection.The another external direct current reactor of Pulp pump frequency changer direct current bus, it is therefore an objective to improve the power factor improving complete equipment.
In the present embodiment, give the control method of a kind of blast furnace dregs thick liquid expulsion system, comprise the following steps:
S1: slurry liquid level in detection granulated blast-furnace tower: by slurry liquid level in the pressure transmitter detection tower of setting in granulated blast-furnace tower；
S2: the slurry liquid level detected is analyzed, and make corresponding operating: the slurry liquid level elevation information collected is sent to local digital display level meter by pressure transmitter, the slurry liquid level collected is carried out locally displayed by local digital display level meter, slurry liquid level elevation information is sent to two Pulp pump converters by the most local digital display level meter by signal isolation allotter, if be detected that slurry liquid level within the scope of preset height, then continue to be carried out the transport of slurry by main Frequency Drive Pulp pump, if be detected that slurry liquid level beyond preset height, then start auxiliary Frequency Drive Pulp pump, by main Frequency Drive Pulp pump, auxiliary Frequency Drive Pulp pump transports slurry jointly.
Only preferred implementation of the present utility model disclosed above; but this utility model is not limited to this; what any those skilled in the art can think does not has creative change; and the some improvements and modifications made under without departing from this utility model principle premise, all should fall in protection domain of the present utility model.
Claims (5)
1. a blast furnace dregs thick liquid expulsion system, including granulated blast-furnace tower, is provided with pelletizer in described granulated blast-furnace tower, the side of described granulated blast-furnace tower is provided with slag inlet, and top is provided with water inlet；It is characterized in that: in described granulated blast-furnace tower, be additionally provided with pressure transmitter; described granulated blast-furnace tower bottom is provided with two and goes out slurry pipeline; wherein one go out slurry pipeline connect have main Frequency Drive Pulp pump; another goes out the connection of slurry pipeline auxiliary Frequency Drive Pulp pump; described main Frequency Drive Pulp pump, auxiliary Frequency Drive Pulp pump are respectively connected with slurry transport pipeline, and described main Frequency Drive Pulp pump, auxiliary Frequency Drive Pulp pump are respectively connecting to control respective Pulp pump converter；
Described pressure transmitter is connected to local digital display level meter, and described local digital display level meter is connected to the input of signal isolation allotter by shielded cable, and the two-way outfan of signal isolation allotter is respectively connected to described two Pulp pump converter.
A kind of blast furnace dregs thick liquid expulsion system the most according to claim 1, it is characterised in that: it is filled with high-abrasive material overcoat in described slurry transport pipeline；To prevent the strength of scum slurry from wearing and tearing, improve service life.
A kind of blast furnace dregs thick liquid expulsion system the most according to claim 2, it is characterised in that: described high-abrasive material overcoat is wear resistant protective ceramic layer；Further enhance the protection effect to slurry transport pipeline.
A kind of blast furnace dregs thick liquid expulsion system the most according to claim 3, it is characterised in that: the thickness of described wear resistant protective ceramic layer is 5mm to 10mm.
A kind of blast furnace dregs thick liquid expulsion system the most according to claim 4, it is characterised in that: the thickness of described wear resistant protective ceramic layer is 8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620192724.5U CN205419100U (en) | 2016-03-14 | 2016-03-14 | High slag thick liquid conveying system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620192724.5U CN205419100U (en) | 2016-03-14 | 2016-03-14 | High slag thick liquid conveying system |
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| Publication Number | Publication Date |
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| CN205419100U true CN205419100U (en) | 2016-08-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620192724.5U Expired - Fee Related CN205419100U (en) | 2016-03-14 | 2016-03-14 | High slag thick liquid conveying system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105600460A (en) * | 2016-03-14 | 2016-05-25 | 山东钢铁股份有限公司 | Blast furnace slag pulp conveying system and control method thereof |
| CN106329944A (en) * | 2016-08-30 | 2017-01-11 | 济南济钢铁合金厂 | Dual-source given control system for frequency converter, and implementation method |
| CN107190111A (en) * | 2017-06-02 | 2017-09-22 | 唐山钢铁集团有限责任公司 | A kind of non-damageable blast furnace slurry conveying conversion equipment |
-
2016
- 2016-03-14 CN CN201620192724.5U patent/CN205419100U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105600460A (en) * | 2016-03-14 | 2016-05-25 | 山东钢铁股份有限公司 | Blast furnace slag pulp conveying system and control method thereof |
| CN105600460B (en) * | 2016-03-14 | 2018-11-16 | 山东钢铁股份有限公司 | A kind of blast furnace dregs thick liquid expulsion system and its control method |
| CN106329944A (en) * | 2016-08-30 | 2017-01-11 | 济南济钢铁合金厂 | Dual-source given control system for frequency converter, and implementation method |
| CN107190111A (en) * | 2017-06-02 | 2017-09-22 | 唐山钢铁集团有限责任公司 | A kind of non-damageable blast furnace slurry conveying conversion equipment |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160803 Termination date: 20190314 |
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| CF01 | Termination of patent right due to non-payment of annual fee |