CN112943674A - Dry dust removal fan for converter gas - Google Patents
Dry dust removal fan for converter gas Download PDFInfo
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- CN112943674A CN112943674A CN202110148555.0A CN202110148555A CN112943674A CN 112943674 A CN112943674 A CN 112943674A CN 202110148555 A CN202110148555 A CN 202110148555A CN 112943674 A CN112943674 A CN 112943674A
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- air cooling
- air
- sealing
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- 239000000428 dust Substances 0.000 title claims abstract description 29
- 238000007789 sealing Methods 0.000 claims abstract description 80
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 60
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 60
- 238000002347 injection Methods 0.000 claims abstract description 39
- 239000007924 injection Substances 0.000 claims abstract description 39
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 24
- 238000001816 cooling Methods 0.000 claims description 62
- 229910052799 carbon Inorganic materials 0.000 claims description 16
- 125000004122 cyclic group Chemical group 0.000 claims description 8
- 239000003034 coal gas Substances 0.000 claims description 5
- 238000010276 construction Methods 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 6
- 239000007789 gas Substances 0.000 description 14
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 9
- 235000017491 Bambusa tulda Nutrition 0.000 description 9
- 241001330002 Bambuseae Species 0.000 description 9
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 9
- 239000011425 bamboo Substances 0.000 description 9
- 238000004880 explosion Methods 0.000 description 9
- 238000012423 maintenance Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000000746 purification Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
- 230000029058 respiratory gaseous exchange Effects 0.000 description 2
- 238000009628 steelmaking Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005474 detonation Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 235000011187 glycerol Nutrition 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 229910001349 ledeburite Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
- F04D29/056—Bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/002—Details, component parts, or accessories especially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/10—Shaft sealings
- F04D29/12—Shaft sealings using sealing-rings
- F04D29/122—Shaft sealings using sealing-rings especially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/287—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps with adjusting means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/30—Vanes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/4226—Fan casings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/582—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a dry type dust removal fan for converter gas, which comprises a wind tube main body, wherein an impeller is arranged in the wind tube main body and rotates in the wind tube main body through a rotating shaft; a carbon ring sealing mechanism is arranged between the rotating shaft and the air duct main body, and sealing oil is injected between the sealing main body and the rotating shaft through an injection mechanism on the sealing main body, so that the sealing effect is improved; the impeller is provided with an adjustable blade with an adjustable angle, and the angle of the adjustable blade can be changed according to the operation condition of the dust removal fan; the air duct main body is provided with an explosion-proof structure corresponding to the adjustable blades, and the inner wall corresponding to the adjustable blades is provided with an explosion-proof aluminum plate, so that the blades are prevented from generating sparks due to friction with the inner wall of the air duct main body, and the running safety of equipment is improved.
Description
Technical Field
The invention belongs to the field of dust removal fan equipment, and particularly relates to a dry dust removal fan for converter gas.
Background
The existing converter flue gas purification modes in China include a wet method and a dry method, a plurality of manufactured wet purification systems are built, and the dry purification systems are developed by 80-year Germany Lurgi company and the Thisen company in a cooperative way. Worldwide, only 10% of operating converters are equipped with dry dedusting devices.
The dry-method purification system comprises: 1. the dust removal effect is good, the quality of the collected dust and coal gas is high, and the dust and coal gas can be directly reused by users; 2. the service life of the fan is long, and the maintenance workload is small; 3. the recovery amount of each ton of steel gas is 1.4 times of that of the wet method; 4. the system power consumption is about 1/5 of a wet system; 5. the system water consumption is 1/3 for the wet system; 6. the dust recycling rate of the system is high, and the steel yield can be improved by about 1%. Therefore, the dry dedusting technology of the converter is recognized as the future development direction of converter steelmaking.
The current dry dust remover applied to a ledeburite 120T converter has the following defects: 1. the bearing seat for supporting the rotating shaft is arranged in the air duct main body, and the bearing seat is cooled by two external air cooling devices in the prior art, so that the early investment of the air cooling devices is large, and the later maintenance cost is high; 2, the blades on the impeller are fixedly welded on the impeller and cannot be adjusted according to working conditions; 3. the friction of the blade and the main body of the wind barrel generates sparks, so that the safety problem exists.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a dry dust removal fan for converter gas, which solves many defects of the dry dust removal fan in the prior art.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a converter coal gas dry-type dust exhausting fan, includes the dryer main part, is provided with the impeller in the dryer main part, and the impeller rotates in the dryer main part through the pivot, and the inside of dryer main part is provided with the bearing frame, and the pivot rotates with the bearing frame to be connected, be provided with air cooling mechanism on the bearing frame, air cooling mechanism confined forced air cooling section of thick bamboo, the bearing frame is located an air cooling section of thick bamboo, and the pivot is provided with the forced air cooling fan in stretching into one of an air cooling section of thick bamboo, be provided with the external intake pipe of intercommunication and outlet duct on the air cooling section of thick bamboo, the one end of intake pipe stretches into an air cooling.
Further, be provided with between intake pipe and the air-cooled fan axial both ends and be open-ended air-cooled cover, wherein be close to the bearing frame be the gas outlet, keep away from the bearing frame be the air inlet, the gas outlet is towards the bearing frame, the intake pipe is connected to the air inlet.
Further, be provided with carbocycle seal structure between dryer main part and the pivot, carbocycle seal structure establishes the epaxial sealed main part in including the cover, be provided with the pivot hole in the sealed main part, be provided with a plurality of seal grooves in the pivot hole, be provided with the carbon sealing ring in the seal groove, be provided with the oil blanket groove in the pivot hole, the both sides in oil blanket groove all have a seal groove at least, be provided with the oil blanket hole in intercommunication oil blanket groove in the sealed main part, be connected with the injection mechanism that can pour into sealing oil in the oil blanket hole.
Further, be provided with a plurality of adjustable type blades on the impeller, be provided with control surface and bolt face on the impeller, be provided with penetrating regulation hole between control surface and the bolt face, adjustable type blade includes blade body and blade root, the blade root stretches into in the regulation hole, be provided with fixing bolt on the bolt face, fixing bolt's screw rod stretches into the blade root and with blade root threaded connection, and fixing bolt's head and bolt face are inconsistent.
Further, be provided with explosion-proof construction in the dryer main part, explosion-proof construction is including being located on the dryer main part inner wall with the corresponding cyclic annular mounting groove of adjustable type blade, be provided with a plurality of explosion-proof aluminum plate on the cyclic annular mounting groove, be provided with first fixing bolt between explosion-proof aluminum plate and the cyclic annular mounting groove, explosion-proof aluminum plate flushes with the inner wall of dryer main part mutually.
Compared with the prior art, the invention has the beneficial effects that:
1. the built-in cooling mechanism can cool the bearing seat and reduce the early investment cost;
2. a carbon ring sealing mechanism is arranged between the rotating shaft and the air duct main body, and sealing oil is injected between the sealing main body and the rotating shaft through an injection mechanism on the sealing main body, so that the sealing effect is improved;
3. the impeller is provided with an adjustable blade with an adjustable angle, and the angle of the adjustable blade can be changed according to the operation condition of the dust removal fan;
4. the air duct main body is provided with an explosion-proof structure corresponding to the adjustable blades, and the inner wall corresponding to the adjustable blades is provided with an explosion-proof aluminum plate, so that the blades are prevented from generating sparks due to friction with the inner wall of the air duct main body, and the running safety of equipment is improved.
Drawings
FIG. 1 is a schematic front view of a dry dust removal fan for converter gas according to the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
FIG. 3 is an enlarged view of portion B of FIG. 1;
FIG. 4 is a schematic cross-sectional view of a carbon seal ring;
FIG. 5 is an enlarged view of portion C of FIG. 1;
FIG. 6 is a schematic structural view of an impeller;
FIG. 7 is a top view of the adjustable vanes when mounted on the impeller;
FIG. 8 is an enlarged view of portion D of FIG. 1;
FIG. 9 is a side cross-sectional view of the explosion proof construction;
fig. 10 is an enlarged view of a portion E of fig. 9.
Reference numerals: 1. a wind barrel main body; 2. an impeller; 201. an adjustable blade; 202. adjusting the surface; 203, bolt face; 204. an adjustment hole; 205. fixing the bolt; 206. an adjustment groove; 207. a fixed block; 208, a gasket groove; 209. a rubbing pad; 210. an angle indicating line; 211. an angle pointer; 3. a bearing seat; 4. an air cooling mechanism; 401. an air-cooled cylinder; 402. an air cooling fan; 4021. an eddy fan blade; 4022. an exhaust chamber; 403. an air inlet pipe; 404. an air outlet pipe; 405. air cooling cover; 406. a thermal insulation layer; 5, a carbon ring sealing structure; 501. a sealing body; 502. a rotating shaft hole; 503. a sealing groove; 504. a carbon seal ring; 5041. a first seal ring; 5042. a second seal ring; 505. an oil seal groove; 506. sealing the oil hole; 507. an injection mechanism; 5071. an injection cylinder; 5072. an injection chamber; 5073. injecting a screw; 5074. an injection piston; 508. an annular spring; 6. an explosion-proof structure; 601. an annular mounting groove; 602. an explosion-proof aluminum plate; 603. a first fixing bolt; 604. a rubber pad; 605. T-shaped aluminum plate; 6051. cover plate; 6052. a connecting plate; 606. a second fixing bolt; 607. a tension spring; 608. a positioning column; 609. positioning holes; 7. a drive motor; 8. a rotating shaft.
Detailed Description
In the description of the present invention, it should be noted that, for the terms of orientation, such as "central", "lateral (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate that the orientation and positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific scope of the present invention.
Furthermore, if the terms "first" and "second" are used for descriptive purposes only, they are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. Thus, a definition of "a first" or "a second" feature may explicitly or implicitly include one or more of the features, and in the description of the invention, "a number" or "a number" means two or more unless explicitly specified otherwise.
The present invention is further explained with reference to fig. 1 to 10.
The utility model provides a converter coal gas dry-type dust exhausting fan, includes dryer main part 1, is provided with impeller 2 in the dryer main part 1, and impeller 2 rotates in dryer main part 1 through pivot 8, and the inside of dryer main part 1 is provided with bearing frame 3, and pivot 8 rotates with bearing frame 3 to be connected, be provided with air cooling mechanism 4 on the bearing frame 3, 4 confined air cooling section of thick bamboo 401 of air cooling mechanism, bearing frame 3 is located air cooling section of thick bamboo 401, and pivot 8 stretches into one of air cooling section of thick bamboo 401 and serves and be provided with air cooling fan 402, be provided with the external intake pipe 403 of intercommunication and outlet duct 404 on the air cooling section of thick bamboo 401.
As shown in fig. 1, a driving motor 7 is disposed outside the air duct body 1, and the driving motor 7 is connected to a rotating shaft 8 and drives the rotating shaft 8 to rotate.
The driving motor 7 is started, the impeller 2 is driven to rotate through the rotating shaft 8, high-temperature dust gas generated by converter steelmaking enters the cavity of the air duct main body 1, at the moment, the rotating shaft 8 can also synchronously drive the air cooling fan 402 to rotate, after the air cooling fan 402 rotates, the air inlet pipe 403 can form negative pressure at the pipe orifice inside the air cooling drum 401, normal-temperature air can enter the air cooling drum 401 from the air inlet pipe 403, when the high-temperature dust gas transfers heat to the bearing seat 3, heat exchange can be carried out with the normal-temperature air inside the air cooling drum 401, so as to cool the bearing seat 3, and hot air after absorbing the heat can be discharged from the air outlet pipe 404, so that the bearing seat 3 in the air cooling drum 401 can be cooled and cooled, the bearing seat 3 can be cooled quickly and effectively through the air cooling mechanism 4 arranged inside the cavity of the air duct main body 1, the service life of the bearing seat 3, reduce the investment cost of dust exhausting fan earlier stage, reduce the maintenance cost of later stage to air cooling mechanism 4 simultaneously.
As shown in fig. 2, preferably, one end of the air inlet pipe 403 extends into the air cooling cylinder 401 and extends to the air cooling fan 402, and one end of the air inlet pipe 403 in the air cooling cylinder 401 is opened toward the air cooling fan 402, so that normal temperature air can be directly blown to the bearing seat 3 to cool the bearing seat 3.
Preferably, a heat insulation layer 406 is arranged between the inner wall and the outer wall of the air cooling cylinder 401, and the heat insulation layer 406 is filled with a heat insulation material, so that heat transfer from high-temperature dust gas in the cavity of the air cylinder main body 1 to the air cooling cylinder 401 can be reduced.
Preferably, the air inlet pipe 403 is located below the air outlet pipe 404, and the hot air after absorbing heat rises in the air cooling cylinder 401, so that the hot air is better discharged through the air outlet pipe 404, and the residence time of the hot air in the air cooling cylinder 401 is reduced.
As shown in fig. 2, an air cooling cover 405 with openings at both axial ends is preferably disposed between the air inlet pipe 403 and the air cooling fan 402, wherein, the air outlet is close to the bearing seat 3, the air inlet is far away from the bearing seat 3, the air outlet faces to the bearing seat 3, the air inlet is connected with an air inlet pipe 403, when the air cooling fan 402 rotates, a smaller cavity is formed between the air cooling cover 405 and the air cooling fan 402, so that negative pressure is more easily formed between the air inlet and the air outlet of the air cooling cover 405, can make external normal atmospheric temperature air inhaled through intake pipe 403 through the negative pressure, then blow normal atmospheric temperature air to bearing frame 3, make and carry out the heat exchange between normal atmospheric temperature air and the bearing frame 3, the hot-air after the absorption heat is then discharged from outlet duct 404, makes the lower normal atmospheric temperature air of temperature can cool off bearing frame 3 more fast, improves the cooling efficiency to bearing frame 3.
As shown in fig. 2, preferably, a plurality of vortex fan blades 4021 are circumferentially and uniformly distributed on the air cooling fan 402, the plurality of vortex fan blades 4021 are enclosed to form an exhaust cavity 4022, one end of the air inlet pipe 403 connected with the air cooling cover 405 extends into the exhaust cavity 4022, when the air cooling fan 402 rotates, normal temperature air is sucked from the air inlet pipe 403 and then enters the exhaust cavity 4022, then the normal temperature air is diffused all around through the vortex fan blades 4021, and then the normal temperature air is blown to the bearing seat 3 through the air cooling cover 405, so that the cooling efficiency of the normal temperature air on the bearing seat 3 is increased, and meanwhile, the suction efficiency of the normal temperature air can be further improved through the vortex fan.
Preferably, the air inlet pipe 403 is provided with a dust screen, dust in normal temperature air is reduced by the dust screen to enter the air cooling cylinder 401, and the influence on the cooling effect of the bearing block 3 is avoided; the air outlet pipe 404 is provided with an exhaust fan, namely, hot air in the air cooling cylinder 401 is rapidly exhausted through the exhaust fan, and the cooling efficiency is improved.
As shown in fig. 3, a carbon ring sealing structure 5 is disposed between the air duct main body 1 and the rotating shaft 8, the carbon ring sealing structure 5 includes a sealing main body 501 sleeved on the rotating shaft 8, a rotating shaft 8 hole 502 is disposed on the sealing main body 501, a plurality of sealing grooves 503 are disposed on the rotating shaft 8 hole 502, a carbon sealing ring 504 is disposed in the sealing groove 503, the carbon sealing ring 504 is abutted to the rotating shaft 8, an oil sealing groove 505 is disposed on the rotating shaft 8 hole 502, at least one sealing groove 503 is disposed on each of two sides of the oil sealing groove 505, an oil sealing hole 506 communicating the oil sealing groove 505 is disposed on the sealing main body 501, and an injection mechanism 507 capable of injecting sealing oil is connected to the oil sealing hole 506.
As shown in fig. 3, the injection mechanism 507 can be installed on the sealing main body 501 through threaded connection, then the sealing oil is injected into the oil seal groove 505, when the sealing oil enters the oil seal groove 505, the sealing oil flows towards the carbon sealing rings 504 on both sides, so that the gap between the carbon sealing rings 504 and the rotating shaft 8 is filled up, thereby sealing toxic gas is achieved, a certain amount of sealing oil can be stored in the oil seal groove 505, only the sealing oil needs to be fed into and discharged from the oil seal groove 505 periodically, meanwhile, the injection mechanism 507 is installed on the sealing main body 501, and no additional equipment is needed, thereby reducing the sealing cost.
Preferably, the sealing oil is oil with poor fluidity and high viscosity, such as glycerin.
As shown in fig. 3, preferably, the injection mechanism 507 includes an injection cylinder 5071, the injection cylinder 5071 is screwed with the oil seal hole 506, an injection cavity 5072 is arranged in the injection cylinder 5071, sealing oil is arranged in the injection cavity 5072, the injection cavity 5072 is communicated with the oil seal groove 505, an injection screw 5073 is connected to the shell in a threaded manner, one end of the injection screw 5073 extends into the injection cavity 5072, and an injection piston 5074 is arranged at the end extending into the injection cavity, the injection piston 5074 is contacted with the cavity wall of the injection cavity 5072, when the sealing oil needs to be injected, the injection screw 5073 is rotated, the injection piston 5074 is moved toward the oil seal groove 505 in the injection chamber 5072, that is, the sealing oil in the injection chamber 5072 is injected into the oil seal groove 505 by the injection piston 5074, the injection amount of the sealing oil can be controlled by the injection screw 5073 screwed, the injection mechanism 507 is simple in structure, and low in early-stage investment cost and later-stage maintenance cost.
Preferably, a rubber seal is provided on the injection piston 5074 to prevent leakage of sealing oil from the injection chamber 5072.
As shown in fig. 3, in the preferred embodiment, a supplementary hole is provided in the injection cylinder 5071, and a supplementary bolt is threadedly connected to the supplementary hole, so that when all the sealing oil in the injection cavity 5072 is injected into the oil seal groove 505, the injection piston 5074 is moved to a position above the supplementary hole, and then the supplementary bolt is unscrewed, so that the sealing oil can be replenished into the injection cavity 5072 through the supplementary hole.
As shown in fig. 4, preferably, carbon sealing ring 504 includes a first sealing ring 5041 and a second sealing ring 5042, second sealing ring 5042 is located on an outer circumferential surface of first sealing ring 5041, and a thickness of second sealing ring 5042 is smaller than that of first sealing ring 5041, that is, a step is formed on an outer circumferential surface of first sealing ring 5041, a supporting step is provided on sealing groove 503, first sealing ring 5041 is in contact with the supporting step, when carbon sealing ring 504 is mounted on sealing body 501, second sealing ring 5042 and first sealing ring 5041 are extended into sealing groove 503, so that the step on the outer circumferential surface of first sealing ring 5041 is in contact with the supporting step, carbon sealing ring 504 can be initially positioned by first sealing ring 5041 and the supporting step, so that when sealing body 501 is mounted on the shaft sleeve, it is not necessary to manually center carbon sealing ring 504 and the shaft sleeve, and the mounting efficiency of sealing body 501 is improved, the labor force is reduced, and the carbon seal ring 504 is prevented from moving radially when the seal body 501 is operated, so that the clearance between the carbon seal ring 504 and the rotating shaft 8 is kept unchanged, and the sealing oil is prevented from losing the sealing effect due to the enlarged clearance.
As shown in fig. 4, it is preferable that the second sealing ring 5042 is provided with an annular spring 508, that is, the carbon sealing ring 504 is prevented from expanding after friction heating by the contractive elastic force of the annular spring 508, which affects the sealing effect of the carbon sealing ring 504.
As shown in fig. 5, in the preferred embodiment, a plurality of adjustable blades 201 are disposed on the impeller 2, an adjusting surface 202 and a bolt surface 203 are disposed on the impeller 2, a through adjusting hole 204 is disposed between the adjusting surface 202 and the bolt surface 203, each adjustable blade 201 includes a blade body and a blade root, the blade root extends into the adjusting hole 204, a fixing bolt 205 is disposed on the bolt surface 203, a screw of the fixing bolt 205 extends into the blade root and is in threaded connection with the blade root, and a head of the fixing bolt 205 is abutted against the bolt surface 203.
As shown in fig. 5 to 6, when the adjustable blade 201 is installed, the blade root on the adjustable blade 201 is aligned with the adjusting hole 204 on the adjusting surface 202 of the impeller 2, then the blade root is inserted into the adjusting hole 204, the fixing bolt 205 is moved to the bolt surface 203, the screw rod of the fixing bolt 205 is aligned with the threaded hole on the blade root, so that the fixing bolt 205 and the adjustable blade 201 are in threaded connection, when the head of the fixing bolt 205 is abutted against the bolt surface 203 and tightly attached to the bolt surface 203, the adjustable blade 201 is fixed on the impeller 2, and when the angle of the adjustable blade 201 needs to be adjusted, the fixing bolt 205 can be loosened, so that the adjustable blade 201 can rotate around the axis of the adjusting hole 204, and the fixing bolt 205 is screwed again after the rotation is completed, so that the adjustable blade 201 is fixed on the impeller 2 again; when adjustable type blade 201 is cracked, can go out fixing bolt 205 on the blade root, and fall cracked adjustable type blade 201 and take off from impeller 2, the adjustable type blade 201 of renewal can, conveniently change adjustable type blade 201 through detachable mounting means promptly, rotate fixing bolt 205 simultaneously and can adjust adjustable type blade 201, make adjustable type blade 201 adapt to different operating modes.
Preferably, the adjustable blade 201 is formed by forging steel integrally, so that the adjustable blade 201 can bear a larger force, the adjustable blade 201 is prevented from being broken, and the service life is prolonged.
As shown in fig. 6, preferably, an adjusting groove 206 is formed in the adjusting surface 202, the diameter of the adjusting groove 206 is larger than that of the adjusting hole 204, a fixing block 207 is arranged between the blade body and the blade root, the fixing block 207 is located in the adjusting groove 206, a gasket groove 208 is formed in the bolt surface 203, a friction gasket 209 is arranged between a screw and a head of the fixing bolt 205, and the friction gasket 209 is located in the gasket groove 208, that is, the fixing block 207 increases the contact area between the adjustable blade 201 and the mounting surface, so as to increase the friction force; increase the area of contact between fixing bolt 205 and the bolt face 203 through friction gasket 209, prevent that the bolt from producing when adjustable type blade 201 operates not hard up, and can improve adjustable type blade 201's installation stability through the cooperation of adjustment tank 206 and fixed block 207 and gasket groove 208 and friction gasket 209, prevent that adjustable type blade 201 from producing circumference when operating and rocking or the displacement, influence the use of fan.
As shown in fig. 7, preferably, a plurality of angle indicating lines 210 are arranged on the fixing block 207, angle marks are marked on the angle indicating lines 210, an angle indicator 211 is arranged on the mounting surface, the angle indicator 211 points at the angle indicating lines 210, and the angle indicating lines 210 and the angle indicator 211 can rotate at a desired angle quickly and accurately when the adjustable blade 201 is adjusted.
As shown in fig. 8, preferably, the air duct main body 1 of the present embodiment is provided with an explosion-proof structure 6, the explosion-proof structure 6 includes an annular mounting groove 601 corresponding to the adjustable vane 201 and located on the inner wall of the air duct main body 1, the annular mounting groove 601 is provided with a plurality of explosion-proof aluminum plates 602, a first fixing bolt 603205 is arranged between the explosion-proof aluminum plates 602 and the annular mounting groove 601, and the explosion-proof aluminum plates 602 are flush with the inner wall of the air duct main body 1.
Before installing impeller 2 in dryer main body 1, set up round annular mounting groove 601 on dryer main body 1's inner wall earlier, then install a plurality of explosion-proof aluminum plate 602 in annular mounting groove 601, and fix explosion-proof aluminum plate 602 in annular mounting groove 601 through first fixing bolt 603205, then install impeller 2 again, when impeller 2 normally works and rotates at a high speed, if adjustable type blade 201 on impeller 2 rubs with explosion-proof aluminum plate 602, because the melting point of explosion-proof aluminum plate 602 is lower than the melting point of adjustable type blade 201, thereby its friction part is melted in the twinkling of an eye with adjustable type blade 201, thereby prevent the production of spark, prevent the inside gaseous detonation that takes place of dryer main body 1, improve equipment operation's security, guarantee workman's life safety.
Preferably, the material of the explosion-proof aluminum plate 602 may be industrial pure aluminum or industrial aluminum alloy, so that the melting point thereof is far lower than that of the adjustable blade 201, thereby avoiding the generation of sparks due to friction.
Preferably, first fixing bolt 603205 is provided with a plurality ofly, and in first fixing bolt 603205 passed explosion-proof aluminum plate 602 and stretched into the bottom surface of cyclic annular mounting groove 601, its first fixing bolt 603205 all with explosion-proof aluminum plate 602 and dryer main part 1 threaded connection, be provided with first conical bolt head on the first fixing bolt 603205, explosion-proof aluminum plate 602 is provided with the bell mouth that corresponds first conical bolt head, and during fixed explosion-proof aluminum plate 602, first fixing bolt 603205 stretched into dryer main part 1 after passing explosion-proof aluminum plate 602 earlier, when the pore wall of first conical bolt head and bell mouth was inconsistent, can fix explosion-proof aluminum plate 602 on cyclic annular mounting groove 601.
As shown in fig. 8, preferably, an elastic rubber gasket 604 is arranged between the explosion-proof aluminum plate 602 and the annular mounting groove 601, when the explosion-proof aluminum plate 602 is fixed by using the first fixing bolt 603205, the rubber gasket 604 can be compressed to a certain thickness, and the explosion-proof gasket is flush with the inner wall of the air duct main body 1, when the explosion-proof aluminum plate 602 is worn, the first fixing bolt 603205 can be loosened to a certain degree, the explosion-proof aluminum plate 602 extends out for a certain distance through the elasticity of the rubber gasket 604, so that a small gap between the adjustable blade 201 and the explosion-proof aluminum plate 602 is maintained, a new explosion-proof aluminum plate 602 is not required, and the maintenance cost is reduced.
As shown in fig. 8, preferably, two adjacent anti-explosion aluminum plates 602 are provided with a T-shaped aluminum plate 605 therebetween, the T-shaped aluminum plate 605 includes a cover plate 6051 and a connecting plate 6052 located on the bottom surface of the cover plate 6051 and perpendicular to the cover plate 6051, and the connecting plate 6052 is located on the center line of the bottom surface of the cover plate 6051, the bottom surface of the cover plate 6051 is respectively inconsistent with the two anti-explosion aluminum plates 602, the connecting plate 6052 is located between the two adjacent anti-explosion aluminum plates 602, a second fixing bolt 606205 is provided between the connecting plate 6052 and the air duct body 1, that is, the T-shaped aluminum plate 605 is fixed on the air duct body 1 while the T-shaped aluminum plate 605 is inconsistent with the anti-explosion aluminum plate 602 through the second fixing bolt 606205, the anti-explosion aluminum plate 602 is provided with a step capable of placing the cover plate 6051, so that the surface of the cover plate 6051 facing the center.
Can eliminate the installation clearance between two adjacent explosion-proof aluminum plate 602 through T type aluminum plate 605, prevent that gas from getting into in the installation clearance, avoid gas to cause the corruption to the thin section of thick bamboo wall of this department for a long time, damage dryer main part 1, lead to gas leakage.
As shown in fig. 10, preferably, a telescopic spring 607 is disposed between the connecting plate 6052 and the bottom of the annular mounting groove 601, the connecting plate 6052 is slidably connected to the two anti-explosion aluminum plates 602, the second fixing bolt 606205 passes through the air duct body 1 and extends into the connecting plate 6052, the second fixing bolt 606205 is in threaded connection with the connecting plate 6052, one end of the second fixing bolt 606205 away from the connecting plate 6052 is provided with a second conical bolt head, the second conical bolt head abuts against the outer surface of the air duct body 1, when the T-shaped aluminum plate 605 is installed, the telescopic spring 607 is first placed between the connecting plate 6052 and the annular mounting groove 601, then the connecting plate 6052 extends into between the two anti-explosion aluminum plates 602 and is in sliding contact with the anti-explosion aluminum plates 602, then the second fixing bolt 606205 passes through the air duct body 1 from the outside and then is in threaded connection with the connecting plate 6052 until the second conical bolt head is tightly attached to the air duct body 1, causing the extension spring 607 to be compressed.
After adjustable type blade 201 rubs with explosion-proof aluminum plate 602 and T type aluminum plate 605 for a long time, make explosion-proof aluminum plate 602 and T type aluminum plate 605 wear, lead to the clearance grow between adjustable type blade 201 and the dryer main part 1, influence the efficiency of breathing in that the impeller 2 is right, loosen second fixing bolt 606205 the certain degree this moment, release one section distance with T type aluminum plate 605 under expanding spring 607's elasticity, thereby be close to the clearance that makes between T type aluminum plate 605 and the adjustable type blade 201 and reduce, thereby guarantee impeller 2's the efficiency of breathing in to a certain extent.
Preferably, when the impeller 2 eccentrically rotates, only one side of the aluminum explosion-proof plate 602 may be worn, and the gap between the opposite side of the aluminum explosion-proof plate 602 and the adjustable blade 201 becomes larger, at this time, the second fixing bolt 606205 may be adjusted to push the T-shaped aluminum plate 605 at the side which is not rubbed out by a distance, so as to reduce the gap between the T-shaped aluminum plate 605 and the adjustable blade 201, and improve the suction efficiency of the impeller 2.
Preferably, a sealing ring may be disposed on the connecting plate 6052, so as to improve the sliding tightness between the connecting plate 6052 and the aluminum explosion-proof plate 602, and prevent gas leakage.
As shown in fig. 8, preferably, the annular mounting groove 601 is provided with a positioning column 608, and the explosion-proof aluminum plate 602 is provided with a positioning hole 609 corresponding to the positioning column 608, that is, the positioning hole 609 on the explosion-proof aluminum plate 602 is aligned with the positioning column 608 on the annular mounting groove 601 during mounting, so that the explosion-proof aluminum plate 602 is quickly and accurately mounted on the annular mounting groove 601, and the mounting efficiency is improved.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (5)
1. The utility model provides a converter coal gas dry-type dust exhausting fan, includes the dryer main part, is provided with the impeller in the dryer main part, and the impeller rotates in the dryer main part is inside through the pivot, and the inside of dryer main part is provided with the bearing frame, and the pivot is connected its characterized in that with the bearing frame rotation: the bearing seat is provided with an air cooling mechanism, the air cooling mechanism is provided with a closed air cooling cylinder, the bearing seat is positioned in the air cooling cylinder, one end of the rotating shaft extending into the air cooling cylinder is provided with an air cooling fan, the air cooling cylinder is provided with an air inlet pipe and an air outlet pipe communicated with the outside, and one end of the air inlet pipe extends into the air cooling cylinder and extends to the air cooling fan.
2. The dry dust removal fan for converter gas as claimed in claim 1, wherein: be provided with between intake pipe and the air-cooled fan axial both ends and be open-ended air-cooled cover, wherein be close to the bearing frame be the gas outlet, keep away from the bearing frame be the air inlet, the gas outlet is towards the bearing frame, the intake pipe is connected to the air inlet.
3. The dry dust removal fan for converter gas as claimed in claim 2, wherein: the utility model discloses a dryer, including dryer main part, carbon ring seal structure, pivot hole, a plurality of seal grooves, carbon sealing ring, oil seal groove, oil seal hole, be provided with the oil seal hole in the seal groove, be provided with the carbon ring seal structure between dryer main part and the pivot, carbon ring seal structure establishes the epaxial sealed main part in pivot including the cover, be provided with the pivot hole in the sealed main part, be provided with the oil seal groove in the seal groove, be provided with the oil seal hole in intercommunication oil seal groove in the pivot hole, be connected with the injection mechanism that can pour.
4. The dry dust removal fan for converter gas as claimed in claim 3, wherein: be provided with a plurality of adjustable type blades on the impeller, be provided with control surface and bolt face on the impeller, be provided with penetrating regulation hole between control surface and the bolt face, adjustable type blade includes blade body and blade root, the blade root stretches into in the regulation hole, be provided with fixing bolt on the bolt face, fixing bolt's screw rod stretches into the blade root and with blade root threaded connection, and fixing bolt's head and bolt face are inconsistent.
5. The dry dust removal fan for converter gas as claimed in claim 4, wherein: be provided with explosion-proof construction in the dryer main part, explosion-proof construction including be located on the dryer main part inner wall with the corresponding cyclic annular mounting groove of adjustable type blade, be provided with a plurality of explosion-proof aluminum plate on the cyclic annular mounting groove, be provided with first fixing bolt between explosion-proof aluminum plate and the cyclic annular mounting groove, explosion-proof aluminum plate flushes with the inner wall of dryer main part mutually.
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| CN202110148555.0A CN112943674A (en) | 2021-02-03 | 2021-02-03 | Dry dust removal fan for converter gas |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110148555.0A CN112943674A (en) | 2021-02-03 | 2021-02-03 | Dry dust removal fan for converter gas |
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| CN112943674A true CN112943674A (en) | 2021-06-11 |
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| CN202110148555.0A Pending CN112943674A (en) | 2021-02-03 | 2021-02-03 | Dry dust removal fan for converter gas |
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Application publication date: 20210611 |