CN201406440Y - Blast furnace gas dry method dedusting heat pipe temperature rise and reduction device - Google Patents
Blast furnace gas dry method dedusting heat pipe temperature rise and reduction device Download PDFInfo
- Publication number
- CN201406440Y CN201406440Y CN200920106930XU CN200920106930U CN201406440Y CN 201406440 Y CN201406440 Y CN 201406440Y CN 200920106930X U CN200920106930X U CN 200920106930XU CN 200920106930 U CN200920106930 U CN 200920106930U CN 201406440 Y CN201406440 Y CN 201406440Y
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- soft water
- heat
- interchanger
- steam
- pipe
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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
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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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
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The utility model discloses a blast furnace gas dry method dedusting heat pipe temperature rise and reduction device. The device comprises: a heat exchanger body, a heat pipe, a stream or soft water bag at the center of the heat exchanger, a soft water or stream bag at the upper part of the heat exchanger, a periodic blowdown pipe, a continuous blowdown pipe, a safety valve, a relief valve, a drain valve, a condensing water tank, a condensing water filter, a condensing water pump, a check valve and a stop valve. The stream or soft water bag at the center of the heat exchanger is provided witha plurality of heat pipes arranged horizontally so as to convey heat; the upper part of the stream or soft water bag at the center of the heat exchanger is connected with the soft water or stream bagat the upper part of the heat exchanger, and the lower part thereof is connected with the condensing water tank, the condensing water pump and the filter; a pipeline is provided with the drain valve,the check valve and the stop valve; and a condensing water pipeline is connected with a soft water system in a blast furnace water pump room. The device has the advantages that: the gas temperature rise and reduction functions of the heat exchanger are integrated into a whole, and the device has small volume, small investment and good effect, and is applicable to blast furnace gas dry method dedusting.
Description
Technical field
The utility model belongs to the Iron And Steel Industry technical field of blast furnace ironmaking, and a kind of blast furnace gas dry dusting heat pipe heating-cooling device is provided; Be applicable to that blast furnace gas dry dusting technology coal gas heats up, falling temperature technique.
Background technology
Blast furnace gas dry dusting is the new technology of a coal gas dust removal.Principle is to adopt high-temperature filter material to purify coal gas with filtering method, is different from traditional wet dedusting.
Dry method dust has that depuration quality is good, energy-conservation, water saving, environmental protection, occupation of land less, advantage such as investment and productive expense be low, therefore have bright development prospect.
High-temperature filter material has certain temperature requirement, and present several filtrate Applicable temperatures are 100 ~ 220 ℃, the highlyest is no more than 260 ~ 280 ℃, and temperature is too high should suitably be controlled, otherwise influences the filter bag performance, and the life-span is reduced.
Easy dewfall during low temperature easily makes filter bag stick with paste, the influence operation.The blow-on initial stage, throat temperature was low because the coal gas washiness, influenced particularly seriously, and these problem wet dedustings are non-existent.
The blast furnace throat temperature is generally 150 ℃～250 ℃ scopes, but because the smelting situation is changeable, extremes of temperature is a common occurrence, such as blast wandering, is elevated to sometimes more than 500～600 ℃; Furnace condition anterograde is on the low side through normal temperature again, has only sometimes about 100 ℃, therefore uses dry method dust to control better gas temperature.
Control not too easily from operating gas temperature.High temperature can also further be lowered the temperature with interchanger before entering cloth bag except that the furnace roof spray cooling.The cooling interchanger has two types at present: a kind of is tubular heat exchange, promptly utilizes the weldless steel tube group as cooling system, passes through the cooling of heating gas natural heat dissipation in the pipe; A kind of is hot tube heat exchanger, utilizes heat pipe principle to conduct heat and lowers the temperature.So far lack means and heat up, once used hot flue gas heating method to heat up, promptly coal gas is by comb, and outside burning blast-furnace gas heat temperature raising has certain effect.Though how other schemes but are difficult to practice, though feasible also quite complicated, increase in addition heat riser make system huge, take up an area of many, also significantly increase of investment.
No matter temperature raises or reduces in fact respectively has 50 ℃ to get final product, if adopt a set of equipment not only can heat up but also can lower the temperature, two functions roll into one, and will make dry dedusting technology more advanced and suitable.The utility model utilizes the adopting heat pipes for heat transfer principle to finish can heat the temperature control equipment that also can lower the temperature.
Summary of the invention
The purpose of this utility model is to provide a kind of blast furnace gas dry dusting heat pipe heating-cooling device, is specially adapted to blast furnace gas dry dusting.Apparatus main body is an interchanger, and two combine into one for coal gas heating-cooling function, little, the reduced investment of volume.
The utility model comprises: the soft water on heat exchanger body, heat pipe, interchanger center steam or soft water bag, interchanger top or steam pockets, drain valve, condensation water tank, water of condensation strainer, condensate pump, vacuum breaker, stopping valve, periodic blow down pipe, continuous blowdown pipe, safety valve, diffuse valve.Main body is an interchanger, in establish center steam or soft water bag and wrap numerous Horizontal heat pipe.Interchanger center steam or soft water are wrapped with the soft water or the steam pockets on interchanger top and are linked to each other; Link to each other with condensation water tank, condensate pump and strainer under interchanger center steam or the soft water bag, pipeline is established drain valve, vacuum breaker, stopping valve, and condensate line links to each other with blast furnace pump works soft water system; Utilize the adopting heat pipes for heat transfer principle to carry out the coal gas heat temperature raising or cool.
Heat pipe is welded on interchanger center steam or the soft water involucrum body, horizontal positioned; The heat pipe surface of flow of gas one side is welded with longitudinal fin to strengthen the adopting heat pipes for heat transfer area, heat pipe surface soldering or spraying nickel chromium triangle matter high-abrasive material outside interchanger center steam or soft water bag.
When the soft water on interchanger center steam or soft water bag and interchanger top or steam pockets are full of soft water and UNICOM, finish coal gas radiating and cooling task; When interchanger center steam or soft water Bao Gaitong saturation steam, finish coal gas heat temperature raising task with bottom soft water recovery system.An equipment can have the intensification and the two kinds of functions of lowering the temperature.
When this coal gas temperature control unit need heat up, have saturation steam supply pipe and water of condensation recvery facility as: condensation water tank, condensate pump, valve etc. are supporting with it; When coal gas need cool off, there are water pipe, top steam pockets and steam bleeding device to realize the coal gas cooling.
The utility model principle is: utilize hot pipe technique to realize heating-cooling.Interchanger is a sleeve structure, and outer shroud is walked coal gas; In logical steam of pericardium or soft water, inside and outsidely utilize the heat pipe that is welded on the involucrum body of center to transmit heat between two-layer.
During the coal gas heat temperature raising, logical saturation steam in the middle pericardium.The heat pipe of solid matter passes to outer shroud coal gas with steam heat, makes its heat temperature raising.Heat transfer process mainly is to have utilized the heat of phase transformation principle: the one, and the vapor condensation process is emitted a large amount of heats of condensation and is added heating gas, and the 2nd, heat pipe has utilized Transformation Principle conduction heat, and heat transfer capacity is big, thermo-efficiency is high.
Cooling principle is to utilize same set of equipment, same group of heat pipe to carry out heat exchange, and just middle pericardium makes soft water into as heat-eliminating medium from logical steam.Coal gas of high temperature passes to heat in the water by heat pipe, and heating makes water vapor take away heat and finishes the coal gas cooling.
Difunctional hot tube heat exchanger key is that heat pipe needs horizontal positioned, no matter is that heating or cooling can both be transmitted heat rapidly.Medium difference in the pericardium in the difference in functionality: logical saturation steam during the coal gas heating; Change soft water during cooling into, change on request.
In order to strengthen the heat interchanging area between coal gas and the heat pipe, the heat pipe surface of outer flow of gas one side of interchanger center steam or soft water bag is welded with longitudinal fin.Be the wearing and tearing that prevent that dust-laden coal gas from causing, heat pipe outer surface spraying or the certain thickness hard wear-resistant material of soldering.
Interchanger pressing force Vessel Design.Coal gas is imported and exported bellow expander, and the connecting tube of middle pericardium has certain bending, in order to eliminate thermal stresses.
Because heating or cooling are be interrupted to use,, can insert or excise as required so interchanger is located at before the dry-method bag-type fly-ash separator inlet on the parallel pipeline.
Adopting heat pipes for heat transfer efficient is very high, is again difunctional, and volume is little, and is therefore very characteristic.
The invention has the advantages that:
No matter be to heat up or cooling, all be to utilize adopting heat pipes for heat transfer, and all be to have utilized heat of phase transformation to carry out heat exchange that heat transfer capacity is big, the thermo-efficiency height, therefore little a lot of than tubular type surface exchanger heat transfer area, intensification or cooling-down effect are better.Equipment life is long, it is little to take up an area of, investment is only quite or a little more than existing heat sink expense.Perfect steam supply and water feeding and draining device are arranged, ensured system's works better.
Description of drawings
Fig. 1 is heat pipe heating and refrigerating unit figure.Wherein, the soft water on heat exchanger body 1, heat pipe 2, interchanger center steam or soft water bag bag 3, interchanger top or steam pockets 4, drain valve 5, condensation water tank 6, water of condensation strainer 7, condensate pump 8, vacuum breaker 9, stopping valve 10, periodic blow down pipe 11, continuous blowdown pipe 12, safety valve 13, diffuse valve 14.
Embodiment
Interchanger center steam or soft water bag bag 3 pass through pipe connection with the steam or the soft water bag 4 on interchanger top; The bottom is connected with condensation water tank 6.Middle pericardium is connected with the soft water pipeline with vapour pipe, both can lead to saturation steam, can pass to soft water again.
There is certain thickness sprayed coating to rise adiabatic in the heat exchanger shell and prevents abrasive action.At the upper and lower maintenance manhole that is provided with of housing.
Hot tube heat exchanger body 1 and built-in heat exchanger center steam or soft water bag bag 3 are pressurized vessel, are equipped with the heat pipe 2 of thousands of horizontal positioned on interchanger center steam or soft water bag bag 3 housings.Feed saturation steam in the pericardium in when coal gas need heat up, heat pipe passes to outside raw gas with steam heat, makes it heat temperature raising.Steam becomes water of condensation after conducting heat, through trap 5, and condensation water tank 6, strainer 7, condensate pump 8 and vacuum breaker 9, stopping valve 10 reclaim.When coal gas need be lowered the temperature in the interchanger in the pericardium steam change and to be soft water, the coal gas of high temperature heat reaches in the water through heat pipe, and soft water vaporization, steam are overflowed, thereby makes the coal gas cooling; The soft water on interchanger top or steam pockets 4 should keep certain water level and have the carbonated drink centrifugation, have safety valve 13, steam to diffuse valve 14, periodic blow down pipe 11, continuous blowdown pipe 12 and water pipe on the soft water on interchanger top or the steam pockets 4.
Because therefore the heat pipe horizontal positioned can two-wayly conduct heat, change different media and can heat or cool off coal gas, make it to heat up or cooling.
Claims (5)
1, a kind of blast furnace gas dry dusting heat pipe heating-cooling device; Comprise: the soft water on heat exchanger body, heat pipe, interchanger center steam or soft water bag, interchanger top or steam pockets, drain valve, condensation water tank, water of condensation strainer, condensate pump, vacuum breaker, stopping valve, periodic blow down pipe, continuous blowdown pipe, safety valve, diffuse valve; It is characterized in that: establish center steam or soft water bag in the interchanger and wrap numerous heat pipes; Interchanger center steam or soft water bag (3) are gone up and are linked to each other with the soft water or the steam pockets (4) on interchanger top; Interchanger center steam or soft water bag (3) link to each other with condensation water tank (6), condensate pump (8) and strainer (7) down, and pipeline also is provided with drain valve (5), vacuum breaker (9), stopping valve (10), and the water of condensation recycling pipeline links to each other with blast furnace pump works soft water system; Heat pipe (2) is welded on pericardium in the interchanger (3) housing, horizontal positioned; Heat pipe (2) surface of interchanger center steam or outer flow of gas one side of soft water bag (3) is welded with longitudinal fin.
2, device as claimed in claim 1 is characterized in that: heat pipe surface soldering or spraying nickel chromium triangle matter high-abrasive material.
3, as claims 1 described device, it is characterized in that: have access opening on the heat exchanger shell, the shell inner surface spraying wear-resistant materials.
4, hot tube heat exchanger body (1) and built-in heat exchanger center steam or soft water bag (3) are pressurized vessel, the heat pipe of peace horizontal positioned on interchanger center steam or soft water bag (3) housing.
5, device as claimed in claim 1 is characterized in that: have safety valve (13), steam to diffuse valve (14), periodic blow down pipe (11), continuous blowdown pipe (12) and water pipe on the soft water on interchanger top or the steam pockets (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920106930XU CN201406440Y (en) | 2009-04-03 | 2009-04-03 | Blast furnace gas dry method dedusting heat pipe temperature rise and reduction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920106930XU CN201406440Y (en) | 2009-04-03 | 2009-04-03 | Blast furnace gas dry method dedusting heat pipe temperature rise and reduction device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201406440Y true CN201406440Y (en) | 2010-02-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920106930XU Expired - Lifetime CN201406440Y (en) | 2009-04-03 | 2009-04-03 | Blast furnace gas dry method dedusting heat pipe temperature rise and reduction device |
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| CN (1) | CN201406440Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102296979A (en) * | 2010-06-22 | 2011-12-28 | 武汉高科佳诚动力科技有限公司 | Dedusting and dehydrating process of deep condensation to gas by utilizing natural cold source |
| CN103436649A (en) * | 2013-09-03 | 2013-12-11 | 南京工业大学 | Dry type bag dedusting temperature control system and temperature control method |
| CN104087694A (en) * | 2014-07-22 | 2014-10-08 | 攀钢集团工程技术有限公司 | Blast furnace smoke recycling device |
| CN111550756A (en) * | 2020-03-31 | 2020-08-18 | 四川建筑职业技术学院 | System and method for treating smoke dust and comprehensively utilizing waste heat of ferromanganese alloy submerged arc furnace |
-
2009
- 2009-04-03 CN CN200920106930XU patent/CN201406440Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102296979A (en) * | 2010-06-22 | 2011-12-28 | 武汉高科佳诚动力科技有限公司 | Dedusting and dehydrating process of deep condensation to gas by utilizing natural cold source |
| CN102296979B (en) * | 2010-06-22 | 2013-09-25 | 武汉高科佳诚动力科技有限公司 | Dedusting and dehydrating process of deep condensation to gas by utilizing natural cold source |
| CN103436649A (en) * | 2013-09-03 | 2013-12-11 | 南京工业大学 | Dry type bag dedusting temperature control system and temperature control method |
| CN104087694A (en) * | 2014-07-22 | 2014-10-08 | 攀钢集团工程技术有限公司 | Blast furnace smoke recycling device |
| CN111550756A (en) * | 2020-03-31 | 2020-08-18 | 四川建筑职业技术学院 | System and method for treating smoke dust and comprehensively utilizing waste heat of ferromanganese alloy submerged arc furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100217 |