CN201864732U - Airbag type pressure regulating device used for charging of high-pressure smelting furnace - Google Patents
Airbag type pressure regulating device used for charging of high-pressure smelting furnace Download PDFInfo
- Publication number
- CN201864732U CN201864732U CN2010206066508U CN201020606650U CN201864732U CN 201864732 U CN201864732 U CN 201864732U CN 2010206066508 U CN2010206066508 U CN 2010206066508U CN 201020606650 U CN201020606650 U CN 201020606650U CN 201864732 U CN201864732 U CN 201864732U
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- Prior art keywords
- pressure
- nitrogen
- smelting furnace
- air bag
- valve
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Links
- 230000001105 regulatory effect Effects 0.000 title claims abstract description 23
- 238000003723 Smelting Methods 0.000 title claims abstract description 16
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 136
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 69
- 238000007789 sealing Methods 0.000 claims description 4
- 239000007789 gas Substances 0.000 abstract description 18
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 10
- 229910052742 iron Inorganic materials 0.000 abstract description 5
- 229910000831 Steel Inorganic materials 0.000 abstract description 4
- 239000010959 steel Substances 0.000 abstract description 4
- 230000000740 bleeding effect Effects 0.000 abstract 5
- 230000007363 regulatory process Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 12
- 239000003034 coal gas Substances 0.000 description 11
- 238000005516 engineering process Methods 0.000 description 9
- 239000000463 material Substances 0.000 description 6
- 238000007599 discharging Methods 0.000 description 5
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 238000005303 weighing Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 238000005273 aeration Methods 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Y02W30/54—
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- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The utility model relates to a pressure regulating device used for the charging of a high-pressure smelting furnace in the field of iron and steel industry, in particular to an airbag type pressure regulating device used for the charging of a high-pressure smelting furnace, which is characterized by comprising a pressure regulation stop valve, a pressure balancing device, an airbag, a nitrogen bleeding valve, a high-pressure nitrogen stop valve, a pressure balancing pipeline, a nitrogen bleeding pipe and a nitrogen pipe, wherein one end of the pressure balancing pipeline is communicated with a pressure regulation outlet of a charging bucket, the other end of the pressure balancing pipeline is communicated with the sealed pressure balancing device, and the pressure balancing pipeline is provided with the pressure regulation stop valve; and the airbag is positioned in a cavity of the pressure balancing device, the airbag is respectively communicated with one end of the nitrogen bleeding pipe and one end of the nitrogen pipe positioned outside the pressure balancing device through connectors, the nitrogen bleeding pipe is provided with the nitrogen bleeding valve, the other end of the nitrogen pipe is communicated with a nitrogen source, and the nitrogen pipe is provided with the high-pressure nitrogen stop valve. The device can achieve zero emission of gas in the pressure regulating process, and the gas is completely recycled internally without environment pollution.
Description
Technical field
The present invention relates to the reinforced used pressure regulating device of a kind of Iron And Steel Industry field mesohigh smelting furnace.
Background technology
The demand for development of Iron And Steel Industry is carried out process optimization from the whole production flow process, reaches energy-saving and cost-reducing, satisfies increasingly serious environmental requirement and cruel market competition, reduces cost, and improves the vitality of steel products.With the blast furnace iron-making process is example, and its weighing batch can is in all to press, diffuse under the alternation program and finishes in the blast furnace furnace roof equipment dress discharge process, all presses (pressurising) to need raw gas, half purified gas or N
2Pour in the weighing batch can, behind the charged by all press reach identical with the State of Blast Furnace internal pressure in case in State of Blast Furnace discharge; Must in atmosphere, discharge raw gas when diffusing, reach the pressure identical, satisfy the material feeding of weighing batch can with atmosphere, the process of diffusing has been discharged a large amount of coal gas and dust, dust can be recovered into stove by cyclone dust removal, but this part coal gas emptying, the amount of diffusing of ton iron is at 6～8Nm
3, the annual molten iron output of China is about 600,000,000 tons, and (the blast furnace gas unit price is by 0.11 yuan/Nm just to reach 40 billion cubic meters via the coal gas amount of blast furnace furnace roof pressure-equalizing and discharging equipment exhausting
3Calculate, be about 4.4 hundred million Renminbi) more than, the wasting of resources has also caused severe contamination to atmosphere simultaneously greatly, and coal gas itself also has good economic worth.
In the emerging non-blast furnace ironmaking technology, what also all adopt is to regulate technology with the similar feed pressure of present blast furnace, and waste greatly.How person skilled all accomplishes zero release to reach energy-saving and cost-reducing, to be beneficial to environmental protection in research.
Summary of the invention
Problem to be solved by this invention is at above-mentioned prior art, proposes a kind of reinforced bladder-type pressure regulating device of high pressure smelting furnace that is used for, and this device can be accomplished the coal gas zero release in the pressure regulate process, and the complete internal recycling of coal gas is used, and is free from environmental pollution.
The present invention solves the problems of the technologies described above the technical scheme that is adopted: be used for the reinforced bladder-type pressure regulating device of high pressure smelting furnace, it is characterized in that: it comprises that pressure adjusting trip valve, pressure equaliser, air bag, nitrogen diffuse valve, high pressure nitrogen trip valve, pressure-equalizing passageway, nitrogen bleeder, nitrogen tube; One end of pressure-equalizing passageway is regulated outlet with the pressure of batch can and is connected, and the other end of pressure-equalizing passageway is connected with the pressure equaliser of sealing, and pressure-equalizing passageway is provided with pressure and regulates trip valve; Air bag is positioned at the cavity of pressure equaliser, the air bag nitrogen bleeder outer with being positioned at pressure equaliser respectively by Link Port, an end of nitrogen tube are connected, the nitrogen bleeder is provided with nitrogen and diffuses valve, the other end of nitrogen tube is connected with source nitrogen, and nitrogen tube is provided with the high pressure nitrogen trip valve.
Principle of the present invention is: the adjustment of batch can internal pressure is actually by the variation of the gas volume in compression and the release batch can and finishes, gas its temperature in the pressure regulate process does not change in the batch can, and the gas in the outside in air bag cuts off fully, this condition satisfies the isothermal process of equation for ideal gases, and the principle formula is P
1V
1=P
2V
2
Therefore, adjustment by the air bag volume changes the gas volume size in the outside in the air bag to adjust the pressure of both sides, make the pressure in the batch can reach the technology controlling and process requirement, satisfy and produce, be respectively nitrogen and raw gas inside and outside the air bag, airbag aeration during pressurising, the raw gas gas volume of compression batch can side carries out discharge after making the rising of batch can internal pressure reach the interior pressure of stove, and air bag deflation during row pressure makes the volume of batch can side increase, pressure reduces, and satisfies the batch can material feeding after dropping to barometric point.The adjustment of air bag volume is filled denitrogen gas and is realized by the serial connection high pressure nitrogen.
The invention has the beneficial effects as follows: this device has fundamentally changed traditional pressure and has regulated technology, solved raw gas to empty emission problem, replaced the discharging of coal gas with the discharging of nitrogen, and original technology, equipment, material have been simplified, simple to operate, reduce fixed investment, saved the production run cost.This device stopped fully coal gas in the pressure-equalizing and discharging process to the sky discharging, what the pressure regulate process was used all is nitrogen, accomplishes the coal gas zero release in the pressure regulate process, the complete internal recycling of coal gas is used, and is free from environmental pollution.The effect of this device is apparent.
Description of drawings
Fig. 1 is the structural representation that is used for the reinforced bladder-type pressure regulating device of high pressure smelting furnace of the present invention;
Wherein: 1---batch can; 2---universal FlexbleJoint; 3---axial FlexbleJoint; 4---the blanking lock; 5---pressure is regulated trip valve; 6---pressure equaliser; 7---air bag; 8---nitrogen diffuses valve; 9---the high pressure nitrogen trip valve; 10---the material feeding lock, 11---pressure-equalizing passageway, 12---the nitrogen bleeder, 13---nitrogen tube.
Embodiment
The present invention is described further below by accompanying drawing, but can not be construed as limiting the invention.
Embodiment 1:
As shown in Figure 1, be used for the reinforced bladder-type pressure regulating device of high pressure smelting furnace and comprise that universal FlexbleJoint 2, axial FlexbleJoint 3, pressure adjusting trip valve 5, pressure equaliser 6, air bag 7, nitrogen diffuse valve 8, high pressure nitrogen trip valve 9, pressure-equalizing passageway 11, nitrogen bleeder 12, nitrogen tube 13; One end of pressure-equalizing passageway 11 is regulated outlet with the pressure of batch can 1 and is connected, the other end of pressure-equalizing passageway 11 is connected with the pressure equaliser of sealing (or claiming pressure balancing tank) 6, and pressure-equalizing passageway 11 is provided with universal FlexbleJoint 2, axially FlexbleJoint 3, pressure are regulated trip valve 5; Air bag 7 is positioned at the cavity of pressure equaliser 6, and an end of the air bag 7 nitrogen bleeder 12 outer with being positioned at pressure equaliser 6 respectively by Link Port, nitrogen tube 13 is connected, and (Link Port can be located on the pressure equaliser 6; Nitrogen diffuses valve 8 and also can be directly arranged in nitrogen and diffuse on the Link Port), nitrogen bleeder 12 is provided with nitrogen and diffuses valve 8, and the other end of nitrogen tube 13 is connected with source nitrogen (as high-pressure nitrogen bottle), and nitrogen tube 13 is provided with high pressure nitrogen trip valve 9.
The volume of described air bag 7 is 2～2.5 times of the volumetrical of batch can 1.
Be used for the reinforced bladder-type pressure of high pressure smelting furnace and regulate technology, it comprises the steps:
1) regulates outlet series connection one bladder-type pressure regulating device (, finishing pressure controlled process) at the pressure of batch can 1 by the volume size of adjusting in the air bag as terminal;
2) when the high pressure smelting furnace has just put into production, the batch can 1 interior pressure of filling it up with material is normal pressure, open with pressure and regulate the pressure adjusting trip valve 5 that exports the bladder-type pressure regulating device that links to each other, open the high pressure nitrogen trip valve 9 on the nitrogen tube 13 that links to each other with air bag 7 again, feeding high pressure nitrogen in air bag 7 (adopts conventional, can adopt the high pressure nitrogen of 0.4-15Mpa), (pressure equaliser is for sealing thereby high pressure nitrogen charges into coal gas volume in the air bag 7 compression pressure equilibrators 6; It is big that the volume of air bag becomes), and then compression batch can one side (is the air bag outside; Be called the inboard in the air bag) gas volume, make the pressure of batch can be elevated to smelting furnace in behind the identical pressure, close high pressure nitrogen trip valve 9, pressure is regulated trip valve 5, opens the blanking lock 4 of batch can 1 bottom, can be to smelting furnace charge;
When 3) carrying out row pressure, open earlier with pressure and regulate the pressure adjusting trip valve 5 that exports the bladder-type pressure regulating device that links to each other, after, the nitrogen of opening again on the nitrogen bleeder 12 that links to each other with air bag 7 diffuses valve 8, high pressure nitrogen in the air bag 7 directly diffuses sky, makes that batch can (being the weighing batch can) 1 one sides (are the air bag outside; The smaller volume of air bag) gas volume increases, and after pressure is reduced to barometric point, closes that nitrogen diffuses valve 8 and pressure is regulated trip valve 5, open the material feeding lock 10 on the batch can 1 after, can to batch can 1 in, feed in raw material, so circulate to finish pressure adjusting technology.
Claims (3)
1. be used for the reinforced bladder-type pressure regulating device of high pressure smelting furnace, it is characterized in that: it comprises that pressure adjusting trip valve (5), pressure equaliser (6), air bag (7), nitrogen diffuse valve (8), high pressure nitrogen trip valve (9), pressure-equalizing passageway (11), nitrogen bleeder (12), nitrogen tube (13); One end of pressure-equalizing passageway (11) is regulated outlet with the pressure of batch can (1) and is connected, and the other end of pressure-equalizing passageway (11) is connected with the pressure equaliser (6) of sealing, and pressure-equalizing passageway (11) is provided with pressure and regulates trip valve (5); Air bag (7) is positioned at the cavity of pressure equaliser (6), air bag (7) the nitrogen bleeder (12) outer with being positioned at pressure equaliser (6) respectively by Link Port, an end of nitrogen tube (13) are connected, nitrogen bleeder (12) is provided with nitrogen and diffuses valve (8), the other end of nitrogen tube (13) is connected with source nitrogen, and nitrogen tube (13) is provided with high pressure nitrogen trip valve (9).
2. the reinforced bladder-type pressure regulating device of high pressure smelting furnace that is used for according to claim 1 is characterized in that: the volume of described air bag (7) is 2～2.5 times of the volumetrical of batch can (1).
3. the reinforced bladder-type pressure regulating device of high pressure smelting furnace that is used for according to claim 1 is characterized in that: pressure-equalizing passageway (11) is provided with universal FlexbleJoint (2), axial FlexbleJoint (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206066508U CN201864732U (en) | 2010-11-15 | 2010-11-15 | Airbag type pressure regulating device used for charging of high-pressure smelting furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206066508U CN201864732U (en) | 2010-11-15 | 2010-11-15 | Airbag type pressure regulating device used for charging of high-pressure smelting furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201864732U true CN201864732U (en) | 2011-06-15 |
Family
ID=44135893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206066508U Expired - Lifetime CN201864732U (en) | 2010-11-15 | 2010-11-15 | Airbag type pressure regulating device used for charging of high-pressure smelting furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201864732U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101974659A (en) * | 2010-11-15 | 2011-02-16 | 中冶南方工程技术有限公司 | Air bag type pressure regulating device for material feeding operation of high-pressure smelting furnace |
-
2010
- 2010-11-15 CN CN2010206066508U patent/CN201864732U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101974659A (en) * | 2010-11-15 | 2011-02-16 | 中冶南方工程技术有限公司 | Air bag type pressure regulating device for material feeding operation of high-pressure smelting furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110615 Effective date of abandoning: 20120502 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20110615 Effective date of abandoning: 20120502 |