CN203007320U - Mechanical vacuumizing device of VD (Vacuum Degassing) furnace - Google Patents
Mechanical vacuumizing device of VD (Vacuum Degassing) furnace Download PDFInfo
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- CN203007320U CN203007320U CN 201220710567 CN201220710567U CN203007320U CN 203007320 U CN203007320 U CN 203007320U CN 201220710567 CN201220710567 CN 201220710567 CN 201220710567 U CN201220710567 U CN 201220710567U CN 203007320 U CN203007320 U CN 203007320U
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- vacuum pump
- pump group
- dust collector
- stage vacuum
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Abstract
The utility model relates to a mechanical vacuumizing device of a VD (Vacuum Degassing) furnace. The mechanical vacuumizing device comprises a cyclone dust collector and a cloth bag dust collector, wherein an inlet of the cyclone dust collector is connected with the VD furnace through a main vacuum stop valve; an outlet of the cyclone dust collector is connected with an inlet of the cloth bag dust collector; and an outlet of the cloth bag dust collector is sequentially connected with a controlled-release vacuum stop valve, a third-grade vacuum pump set, a second-grade vacuum pump set and a first-grade vacuum pump set. The mechanical vacuumizing device disclosed by the utility model is low in energy consumption and small in occupied area; a mechanical system is compact in structure; occupied areas of a boiler and a pipeline are saved relative to a steam system; and the mechanical vacuumizing device has the advantages of strong maneuverability, convenience in starting and stopping and flexibility in operation, and is suitable for a steel-making production work mode.
Description
Technical field
The utility model relates to a kind of metallurgy vacuum extractor, particularly in a kind of VD stove mechanical vacuumizing device of steel-making.
Technical background
Turn to from the growth of devoting exclusive attention to output along with the center of gravity of Steel industry and pursue kind and quality, the outer vacuum refinement of molten steel stove will further be popularized and be developed.The VD stove is the visual plant of steel-making external refining, can realize molten steel is vacuumized the dividing potential drop of processing, reduction gas, and the free gas atom that is conducive to be dissolved in molten steel is got rid of from molten steel, can effectively reduce various gas contents in molten steel; And vacuum tightness is less, more is conducive to the eliminating of free gas atom in steel, also just more is conducive to reduce the gas content in molten steel, improves degassing efficiency.Therefore, the core of VD stove vacuum refinement is whole vacuum system, and its performance has not only determined the effect of refining, also affects greatly quality and the operation and maintenance cost of product.
Summary of the invention
The purpose of this utility model is to provide a kind of VD stove mechanical vacuumizing device, and this device is used for the VD stove evacuation by the VD stove evacuation device that vacuumometer, main vaccum stop valve, tornado dust collector, sack cleaner, blow-off valve and vacuum pump group form.
Particular content of the present utility model is as follows:
a kind of VD stove mechanical vacuumizing device, comprise tornado dust collector and sack cleaner, described tornado dust collector import is connected to the VD stove by a main vaccum stop valve, the outlet of tornado dust collector is connected with the sack cleaner import, and sack cleaner exports be linked in sequence slowly-releasing vaccum stop valve, third stage vacuum pump group, second stage vacuum pump group, first step vacuum pump group, be connected with the first cross-over connection stopping valve between described third stage vacuum pump group and second stage vacuum pump group, be connected with the second cross-over connection stopping valve between described second stage vacuum pump group and first step vacuum pump group, be provided with the first blow-off valve on pipeline between described third stage vacuum pump group and slowly-releasing vaccum stop valve, be provided with the second blow-off valve on connecting pipeline between described third stage vacuum pump group and second stage vacuum pump group, be provided with the 3rd blow-off valve on connecting pipeline between described second stage vacuum pump group and first step vacuum pump group, between described VD stove and tornado dust collector, between tornado dust collector and sack cleaner, on pipeline between sack cleaner and third stage vacuum pump group, temperature gauge is arranged even respectively, also be provided with the vacuum measurement meter on pipeline between described VD stove and tornado dust collector.
Further, described third stage vacuum pump group, second stage vacuum pump group, first step vacuum pump group are respectively to be composed in parallel by a plurality of vacuum pumps, and the power of each group vacuum pump is consistent, and each vacuum pump is connected with a stopping valve.
Further, described third stage vacuum pump group is in parallel by the vacuum pump of 8 equal-wattages, and described second stage vacuum pump group is in parallel by the vacuum pump of 3 equal-wattages, and described first step vacuum pump group is composed in parallel by the vacuum pump of 4 equal-wattages.
The beneficial effects of the utility model:
(1) be mainly the power consumption of vacuum pump due to mechanical vacuumizing technology power consumption, it is the steam of finding time that steam vacuumizes main power consumption, and from the design energy consumption, the steam power consumption is approximately 5-6 times of power consumption of vacuum pump, therefore adopts mechanical vacuumizing, and energy consumption is lower.
(2) floor space is little, and mechanical system structure is compact, and steam system is saved boiler and pipeline floor space relatively.
(3) environmental protection, mechanical vacuumizing discharges without waste gas and wastes, only has through uncontaminated air discharging after purifying.
(4) mobility strong, start and stop are convenient, flexible operation, more are applicable to the STEELMAKING PRODUCTION work pattern.
(5) performance is good, and final vacuum is better than vapour pump.
Description of drawings
Fig. 1 is the utility model structural representation.
Embodiment
a kind of VD stove mechanical vacuumizing device embodiment, referring to Fig. 1, described device comprises tornado dust collector 1 and sack cleaner 2, described tornado dust collector import is connected to VD stove 4 by a main vaccum stop valve 3, the outlet of tornado dust collector is connected with the sack cleaner import, and sack cleaner exports be linked in sequence slowly-releasing vaccum stop valve 5, third stage vacuum pump group 6, second stage vacuum pump group 7, first step vacuum pump group 8, be connected with the first cross-over connection stopping valve 9 between described third stage vacuum pump group and second stage vacuum pump group, be connected with the second cross-over connection stopping valve 10 between described second stage vacuum pump group and first step vacuum pump group, be provided with the first blow-off valve 11 on pipeline between described third stage vacuum pump group and slowly-releasing vaccum stop valve, be provided with the second blow-off valve 12 on connecting pipeline between described third stage vacuum pump group and second stage vacuum pump group, be provided with the 3rd blow-off valve 13 on connecting pipeline between described second stage vacuum pump group and first step vacuum pump group, between described VD stove and tornado dust collector, between tornado dust collector and sack cleaner, on pipeline between sack cleaner and third stage vacuum pump group, temperature gauge 14 is arranged even respectively, 15, 16, 17, also be provided with vacuum measurement meter 18 on pipeline between described VD stove and tornado dust collector.
In embodiment, described third stage vacuum pump group, second stage vacuum pump group, first step vacuum pump group are respectively to be composed in parallel by a plurality of vacuum pumps, and the power of each group vacuum pump is consistent, and each vacuum pump is connected with a stopping valve 19.
In embodiment, described third stage vacuum pump group is by vacuum pump 20 parallel connections of 8 equal-wattages, and described second stage vacuum pump group is by vacuum pump 21 parallel connections of 3 equal-wattages, and described first step vacuum pump group is composed in parallel by the vacuum pump 22 of 4 equal-wattages.
Claims (3)
1. VD stove mechanical vacuumizing device, it is characterized in that, described device comprises tornado dust collector and sack cleaner, described tornado dust collector import is connected to the VD stove by a main vaccum stop valve, the outlet of tornado dust collector is connected with the sack cleaner import, and sack cleaner exports be linked in sequence slowly-releasing vaccum stop valve, third stage vacuum pump group, second stage vacuum pump group, first step vacuum pump group, be connected with the first cross-over connection stopping valve between described third stage vacuum pump group and second stage vacuum pump group, be connected with the second cross-over connection stopping valve between described second stage vacuum pump group and first step vacuum pump group, be provided with the first blow-off valve on pipeline between described third stage vacuum pump group and slowly-releasing vaccum stop valve, be provided with the second blow-off valve on connecting pipeline between described third stage vacuum pump group and second stage vacuum pump group, be provided with the 3rd blow-off valve on connecting pipeline between described second stage vacuum pump group and first step vacuum pump group, between described VD stove and tornado dust collector, between tornado dust collector and sack cleaner, on pipeline between sack cleaner and third stage vacuum pump group, temperature gauge is arranged even respectively, also be provided with the vacuum measurement meter on pipeline between described VD stove and tornado dust collector.
2. a kind of VD stove mechanical vacuumizing device according to claim 1, it is characterized in that, described third stage vacuum pump group, second stage vacuum pump group, first step vacuum pump group are respectively to be composed in parallel by a plurality of vacuum pumps, the power of each group vacuum pump is consistent, and each vacuum pump is connected with a stopping valve.
3. a kind of VD stove mechanical vacuumizing device according to claim 1, it is characterized in that, described third stage vacuum pump group is in parallel by the vacuum pump of 8 equal-wattages, described second stage vacuum pump group is in parallel by the vacuum pump of 3 equal-wattages, and described first step vacuum pump group is composed in parallel by the vacuum pump of 4 equal-wattages.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220710567 CN203007320U (en) | 2012-12-21 | 2012-12-21 | Mechanical vacuumizing device of VD (Vacuum Degassing) furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220710567 CN203007320U (en) | 2012-12-21 | 2012-12-21 | Mechanical vacuumizing device of VD (Vacuum Degassing) furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203007320U true CN203007320U (en) | 2013-06-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220710567 Expired - Fee Related CN203007320U (en) | 2012-12-21 | 2012-12-21 | Mechanical vacuumizing device of VD (Vacuum Degassing) furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203007320U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104593547A (en) * | 2015-01-13 | 2015-05-06 | 山东钢铁股份有限公司 | Vacuumizing control method and system of VD mechanical pump |
| CN106399639A (en) * | 2016-01-19 | 2017-02-15 | 陈莉菲 | Dry type mechanical vacuum pump degassing system and method for liquid steel secondary refining |
-
2012
- 2012-12-21 CN CN 201220710567 patent/CN203007320U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104593547A (en) * | 2015-01-13 | 2015-05-06 | 山东钢铁股份有限公司 | Vacuumizing control method and system of VD mechanical pump |
| CN104593547B (en) * | 2015-01-13 | 2017-02-22 | 山东钢铁股份有限公司 | Vacuumizing control method and system of VD mechanical pump |
| CN106399639A (en) * | 2016-01-19 | 2017-02-15 | 陈莉菲 | Dry type mechanical vacuum pump degassing system and method for liquid steel secondary refining |
| CN106399639B (en) * | 2016-01-19 | 2018-05-08 | 陈莉菲 | Dry-type mechanical vacuum pump degassing system and degassing method for steel secondary refining |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20130619 Termination date: 20201221 |
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| CF01 | Termination of patent right due to non-payment of annual fee |