CN107841589A - Flue rotating device - Google Patents
Flue rotating device Download PDFInfo
- Publication number
- CN107841589A CN107841589A CN201711153954.6A CN201711153954A CN107841589A CN 107841589 A CN107841589 A CN 107841589A CN 201711153954 A CN201711153954 A CN 201711153954A CN 107841589 A CN107841589 A CN 107841589A
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- Prior art keywords
- housing
- flue
- weight
- spiral cylinder
- air
- Prior art date
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 57
- 238000004880 explosion Methods 0.000 claims abstract description 57
- 239000003546 flue gas Substances 0.000 claims abstract description 57
- 238000013022 venting Methods 0.000 claims abstract description 32
- 239000003500 flue dust Substances 0.000 claims abstract description 22
- 239000000725 suspension Substances 0.000 claims description 21
- 238000007599 discharging Methods 0.000 claims description 8
- 239000007789 gas Substances 0.000 claims description 7
- 230000007704 transition Effects 0.000 claims description 7
- 230000000694 effects Effects 0.000 claims description 6
- 230000005484 gravity Effects 0.000 claims description 5
- 238000005338 heat storage Methods 0.000 claims description 5
- 238000010276 construction Methods 0.000 claims description 4
- 239000011261 inert gas Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 241000233855 Orchidaceae Species 0.000 claims 1
- 239000011248 coating agent Substances 0.000 claims 1
- 238000000576 coating method Methods 0.000 claims 1
- 239000000428 dust Substances 0.000 abstract description 12
- 238000009628 steelmaking Methods 0.000 abstract description 7
- 238000000926 separation method Methods 0.000 abstract description 4
- 239000010410 layer Substances 0.000 description 9
- 239000000779 smoke Substances 0.000 description 8
- 230000009471 action Effects 0.000 description 4
- 239000011247 coating layer Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 239000003517 fume Substances 0.000 description 3
- 239000008187 granular material Substances 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 230000002153 concerted effect Effects 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 239000012774 insulation material Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/42—Constructional features of converters
- C21C5/46—Details or accessories
- C21C5/4646—Cooling arrangements
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/38—Removal of waste gases or dust
Abstract
The invention discloses a kind of flue rotating device, including spiral cylinder (21), spiral cylinder (21) is connected with flue-dust retainer (24) and explosion venting valve (27), flue-dust retainer (24) and explosion venting valve (27) be positioned at spiral cylinder (21) outside, flue-dust retainer (24) is located at the bottom of spiral cylinder (21), and the inner surface of spiral cylinder (21) is provided with wearing layer (22).The flue rotating device can carry out effective dry type separation to the dust in pneumatic steelmaking flue gas, have huge realistic meaning and commercial value to the field of comprehensive utilization of pneumatic steelmaking flue gas and dust.
Description
Technical field
The present invention relates to fume recovery apparatus field, a kind of particularly flue rotating device.
Background technology
At present in dedusting system, cyclone separator has obtained extensively as a kind of effective technology of centrifugal separation technology
General application, the advantage is that technology maturation, flow is big for processing, high-temperature adaptability is strong, but there is also resistance big (about 1500Pa) etc.
Weakness.
The flue gas and dust of substantial amounts of high temperature are produced in metallurgy industry, pneumatic steelmaking, it cools laggard by flue
Enter flue rotating device.The flue gas and dust of the high temperature of pneumatic steelmaking have huge value, but the explosive characteristic of flue gas, dust
The factor such as high temperature wear hamper the recovery of value.
The content of the invention
For the dust granules in recovered flue gas, the invention provides a kind of flue rotating device, the flue rotating device
Effective dry type separation can be carried out to the dust in pneumatic steelmaking flue gas, the comprehensive utilization neck to pneumatic steelmaking flue gas and dust
There are huge realistic meaning and commercial value in domain.
The technical solution adopted for the present invention to solve the technical problems is：A kind of flue rotating device, including spiral cylinder,
Spiral cylinder is connected with flue-dust retainer and explosion venting valve, and flue-dust retainer and explosion venting valve are outside spiral cylinder, and flue-dust retainer is located at spiral
The bottom of cylinder, the inner surface of spiral cylinder are provided with wearing layer.
The upper end of spiral cylinder is provided with smoke inlet, and the lower end of spiral cylinder is provided with exhanst gas outlet, and explosion venting valve is located at spiral
The top of cylinder, the lower end of flue-dust retainer are provided with cinder-discharging port, supporting construction, spiral cylinder are provided with the inside or outside of spiral cylinder
Inside be provided with and can store the heat storage of heat.
Spiral cylinder is in erectility, and the section of spiral cylinder is pentagon, and the pentagon contains the outside being sequentially connected
Side, upper side edge, inner side edge, lower side and oblique side, outer side edges and inner side edge are vertically set, upper side edge and lower side
Horizontally disposed, the width of lower side is less than the width of upper side edge, and wearing layer is located at outer side edges, oblique side and downside
Side.
The explosion venting valve includes housing, weight and explosion part, and housing is cylindrical in shape structure, and the lower end of housing flows into provided with gas
Mouthful, the lower end of housing is connected with spiral cylinder, and the side wall of housing is provided with air-flow side outlet；The air flow inlet gap of weight and housing
Coordinate, weight can rely on the effect of gravity to move down；Explosion part is arranged at outside the air-flow side outlet of housing, explosion part
Contain rupture disk；, should when air-flow, which promotes weight to be moved upward to the air flow inlet of housing, to be connected with the air-flow side outlet of housing
Air-flow can rupture the rupture disk of explosion part.
Housing is in erectility, is arranged with outer sleeve outside housing, the toroidal cavity of closing is formed between housing and outer sleeve,
The toroidal cavity is connected by air-flow side outlet with the inside of housing；The side wall of outer sleeve is provided with sleeve outlet, outside sleeve outlet
It is sealedly connected with outlet connection, outlet connection is cylindrical shape, and the center line of outlet connection intersects and vertical with the center line of housing,
The port of export of outlet connection is tightly connected with explosion part.
Along the centerline direction of housing, the length of outer sleeve is less than the length of housing, and the upper end of outer sleeve is less than housing
Upper end, the lower end of outer sleeve are higher than the lower end of housing, and the center line of outer sleeve overlaps with the center line of housing, and housing contains multiple
Air-flow side outlet, multiple air-flow side outlets are arranged in order along the circumference of housing.
Explosion part also contains outer cylinder body, and the edge of rupture disk and the inner surface of outer cylinder body are sealedly and fixedly connected, outer cylinder body
Arrival end and the port of export of outlet connection connected by flange, the center line of outer cylinder body overlaps with the center line of outlet connection,
The internal diameter of outer cylinder body is identical with the internal diameter of outlet connection, and outlet connection is connected with inert gas blowback interface.
The venting of dust explosion valve housing is in erectility, and the upper end of housing is sealedly connected with blind flange, and the explosion venting valve also wraps
Suspension rod and spring are included, spring is located at the top of blind flange, and suspension rod is upright rod-like structure, and suspension rod passes through blind flange, suspension rod
Lower end is connected with weight, and the upper end of suspension rod is fixed relative to the upper end of spring, and the lower end of spring is fixed relative to blind flange,
Spring can provide restoring force to weight.
The explosion venting valve also includes guide thimble, and guide thimble is sheathed on outside suspension rod, guide thimble and suspension rod interference fits,
Guide thimble is between blind flange and weight, and upper end and the blind flange of guide thimble are connected, along the center line side of housing
To the length of guide thimble and the length sum of weight are less than the center line of air-flow side outlet to the distance of blind flange.
High-temperature resistant coating layer is contained in the outside of weight, and weight is in round pie, and the lower edge of weight is provided with chamfered transition, should
The upper end of chamfered transition is concordant with the lower end of housing, and flange is equipped with outside the top and bottom of housing.
The beneficial effects of the invention are as follows：The flue rotating device can be used for connection converter evaporation cooling air flue and subsequent fine to remove
Dirt facility, it is both the circulation passage of flue gas, has the clinker swept along in removal flue gas, group's ash, block grey, particulate dust thick again
Dedusting function, and it is smaller to the resistance of flue gas.
Brief description of the drawings
The Figure of description for forming the part of the application is used for providing a further understanding of the present invention, and of the invention shows
Meaning property embodiment and its illustrate be used for explain the present invention, do not form inappropriate limitation of the present invention.
Fig. 1 is the structural representation of flue rotating device.
Fig. 2 is along the schematic diagram in A directions in Fig. 1.
Fig. 3 is the structural representation of explosion venting valve.
Fig. 4 is along the sectional view in C-C directions in Fig. 3.
1st, weight；2nd, suspension rod；3rd, spring；4th, housing；5th, explosion part；6th, first flange；7th, second flange；8th, flange
Lid；9th, the 3rd flange；10th, the 4th flange；11st, air-flow side outlet；12nd, sleeve outlet；13rd, guide thimble；14th, high-temperature resistant coating
Layer；15th, rupture disk；16th, outlet connection；17th, outer sleeve；18th, outer cylinder body；19th, high-temperature flue gas pipe；20th, blowback interface；
21st, spiral cylinder；22nd, wearing layer；23rd, insulation material；24th, flue-dust retainer；25th, cinder-discharging port；26th, supporting construction；27、
Explosion venting valve；28th, the cylinder of illusion；
211st, outer side edges；212nd, upper side edge；213rd, inner side edge；214th, lower side；215th, oblique side.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combination.Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
A kind of flue rotating device, including spiral cylinder 21, spiral cylinder 21 are connected with flue-dust retainer 24 and explosion venting valve 27, collection
Ash bucket 24 and explosion venting valve 27 are outside spiral cylinder 21, and flue-dust retainer 24 is located at the bottom of spiral cylinder 21, spiral cylinder 21
Inner surface be provided with wearing layer 22, as depicted in figs. 1 and 2.
In use, after flue gas enters spiral cylinder 21, flue gas accelerates flowing, flue dust therein in the presence of inertia force
Grain collides so as to separate with the inner surface of spiral cylinder 21, and then dust granule under gravity, falls in spiral cylinder
The bottom of 21 flue gas flow area, is then flowed downward in flue-dust retainer 24 along spiral cylinder 21, discharges flue rotating dress
Put.Explosion venting valve 27 is set to be used as safety guarantee on spiral cylinder 21.When operating mode medium causes the outside wall temperature of spiral cylinder 21 to reach
During to more than 50 DEG C, the outer surface of spiral cylinder 21 need to set necessary insulation material 23.
In the present embodiment, the upper end of spiral cylinder 21 is provided with smoke inlet, and the lower end of spiral cylinder 21 goes out provided with flue gas
Mouthful, explosion venting valve 27 is located at the top of spiral cylinder 21, and the lower end of flue-dust retainer 24 is provided with cinder-discharging port 25, and the soot dust granule being collected into leads to
Cross flue-dust retainer 24 and cinder-discharging port 25 is discharged.When the volume of spiral cylinder 21 is larger or heavier, the inner side of spiral cylinder 21 or outer
Side is provided with supporting construction 26 and reinforcing rib, keeps its strength and stability.When the temperature fluctuation that flue gas flows through is larger, spiral
The inside of cylinder 21 is provided with the heat storage that can store heat, realizes peak clipping Pinggu of heat smoke, tends to flue-gas temperature as far as possible
It is stable.The heat storage can be the spiral shape water pipe being sheathed in spiral cylinder 21, i.e., heat storage forms spiral shell with spiral cylinder 21
Revolve shape sleeve structure.Or spiral cylinder 21 can be designed to that itself carries heat accumulation function, as the barrel of spiral cylinder 21 be by
The membrane wall of water pipe composition.
In the present embodiment, spiral cylinder 21 is in erectility, the section of spiral cylinder 21 can be rectangle or circle or
Ellipse, the preferably section of spiral cylinder 21 are pentagon, and the pentagon contains the outer side edges 211 being sequentially connected, upper side edge
212nd, inner side edge 213, lower side 214 and oblique side 215, outer side edges 211 and inner side edge 213 are vertically set, upside
Side 212 and lower side 214 are horizontally disposed, and the width of lower side 214 is less than the width of upper side edge 212, wearing layer 22
Positioned at outer side edges 211, oblique side 215 and lower side 214, as shown in Fig. 2 tiltedly side 215 and the angle of outer side edges 211 are
135 °, oblique side 215 and the angle of lower side 214 are 135 °.Distance of the inner side edge 213 to the center line of the cylinder 28 of illusion
Less than the distance of the center line of the cylinder 28 of outer side edges 211 to illusion.Wearing layer 22 in spiral cylinder also has one simultaneously
Fixed heat accumulation function.
Spiral cylinder 21 is spinned for the section around the cylinder 28 of an illusion rises the spiral cylinder formed
Body, the medial surface of spiral cylinder 21 match connection with the outer surface of the cylinder 28 of illusion, and the section is in spiralling process
In the angle that turns over be not less than 180 °.Spiral cylinder 21 is perpendicular for the center line edge of the cylinder 28 of illusion in the implication of erectility
Nogata can also use cylinder or the frustum of a cone to replace to setting, the cylinder 28 of illusion.The side wall of spiral cylinder 21 is by certain
The steel plate of intensity, or the side wall of spiral cylinder 21 is membrane wall made of solid matter steel pipe, wearing layer 22 is located in spiral cylinder 21
Region easy to wear.
In use, the flue rotating device vertical, as shown in figure 1, flue gas upper entering and lower leaving.The device plays separation
The clinker swept along in flue gas, group's ash, block ash, the rough dedusting function of particulate dust, its flue gas resistance is about 500Pa, is only passed
The 1/3 of the cyclone dust collectors of system, so as to the electric energy for the system of saving.
Explosion venting valve 27 can use existing commercially available prod, can also use the specially designed explosion venting valve 27 of the present invention.This is let out
Quick-fried valve 27 includes housing 4, weight 1 and explosion part 5, and housing 4 is cylindrical in shape structure, and the lower end of housing 4 is provided with air flow inlet, housing
4 lower end is connected with spiral cylinder 21, and the side wall of housing 4 is provided with air-flow side outlet 11；Between the air flow inlet of weight 1 and housing 4
Gap coordinates, and weight 1 can rely on the effect of gravity to move down；Explosion part 5 is arranged at outside the air-flow side outlet 11 of housing 4,
Explosion part 5 contains rupture disk 15；When air-flow promotes weight 1 to be moved upward to the air flow inlet of housing 4 and the air-flow side of housing 4
During the connection of outlet 11, the air-flow can rupture the rupture disk 15 of explosion part 5, as shown in Figure 3 and Figure 4.The air-flow is spiral
Flue gas stream in cylinder 21.
When air-flow, which promotes weight 1 to be moved upward to the air flow inlet of housing 4, to be connected with the air-flow side outlet 11 of housing 4
(i.e. weight 1 is moved upward to dotted line position by the solid line position in Fig. 3), the air-flow can make the rupture disk 15 of explosion part 5
Rupture, as shown in Figure 3.
During original state, weight 1 is located at the solid line position in Fig. 3, and weight 1 rises in the normal operation pressure limit of flue gas
To the effect of sealing fume, when flue gas pressures exceed normal range (NR), weight 1 is shifted up by flue gas pressures effect, such as
The dotted line position being moved upward in Fig. 3, now the air flow inlet of housing 4 connects with the air-flow side outlet 11 of housing 4, while cigarette
Gas enters the air-flow side outlet 11 of housing 4 from the air flow inlet of housing 4, exceeds the pressure-resistant limit of rupture disk 15 in flue gas pressures
When, rupture disk 15 occurs immediately upon rupture, high-temperature flue gas of being released out at the rupture disk 15.After high-temperature flue gas is released, the air-flow
When the flue gas pressures of porch are returned in normal range (NR), weight 1 is moved down until recover initial sealing state, Fig. 3 and
Arrow B represents flow of flue gas in Fig. 4.
The explosion venting valve 27 is connected to outside the top of spiral cylinder 21 when in use, and the flue gas in spiral cylinder 21 is normal
When in the range of operating pressure, weight 1 plays a part of sealing fume.Exceed the pressure-resistant limit of rupture disk 15 in the pressure of flue gas
When, rupture disk 15 occurs immediately upon rupture action, so as to high-temperature flue gas of releasing out, as shown in Figure 3.The explosion venting valve 27 solves high temperature
The venting of dust explosion of flue gas, while can online change and part is destroyed caused by venting of dust explosion, ensure the normal production of technique.
Rupture disk 15 contains the sheet metal and plastic foil being stacked.Wherein, the sheet metal of rupture disk 15 can be according to《Explosion
Sheet devices safety and technical supervision code》And GB567《Rupture disk safety device》Manufactured, in the market is also available.It is simultaneously
The slip that explosion venting valve 27 seals is reduced, in the present embodiment, the plastic foil is located at the internal layer or outer layer of rupture disk 15, the plastics
Film is high compactness, low intensive leakproofing material.
In the present embodiment, housing 4 is in erectility, and housing 4 is cylindrical shape, and outer sleeve 17, housing are arranged with outside housing 4
The toroidal cavity of closing is formed between 4 and outer sleeve 17, the toroidal cavity is referred to as flue gas and confluxed room, and the toroidal cavity passes through air-flow
Side outlet 11 connects with the inside of housing 4, as shown in Figure 3 and Figure 4.
In the present embodiment, the side wall of outer sleeve 17 is provided with sleeve outlet 12, and outer sleeve 17 contains and connected successively from the top down
End cap, side perisporium and bottom end cover are connected, upper end cover and bottom end cover are annular, and sleeve outlet 12 is located in the side perisporium,
The external seal of sleeve outlet 12 is connected with outlet connection 16, and outlet connection 16 is cylindrical shape, center line and the housing 4 of outlet connection 16
Center line it is intersecting and vertical, the port of export and the explosion part 5 of outlet connection 16 are tightly connected.The side wall connection of outlet connection 16
There is the blowback interface 20 of inert gas, inert gas is blown into by the blowback interface 20 interior that can conflux to the flue gas.
In the present embodiment, along the centerline direction of housing 4, the length of outer sleeve 17 is less than the length of housing 4, outer sleeve
17 upper end is less than the upper end of housing 4, and the lower end of outer sleeve 17 is higher than the lower end of housing 4, center line and the housing 4 of outer sleeve 17
Center line overlap, housing 4 contains multiple air-flow side outlets 11, and circumference of multiple air-flow side outlets 11 along housing 4 is arranged in order.
The 30%~50% of the diameter of a diameter of housing 4 of air-flow side outlet 11., as shown in Figure 3 and Figure 4.
In the present embodiment, explosion part 5 also contains outer cylinder body 18, the edge of rupture disk 15 and the inner surface of outer cylinder body 18
It is sealedly and fixedly connected, the arrival end of outer cylinder body 18 is connected with the port of export of outlet connection 16 by flange, such as outlet connection 16
The port of export is connected with the arrival end of outer cylinder body 18 by the 3rd flange 9 and the 4th flange 10, the center line of outer cylinder body 18 and outlet
The center line of joint 16 overlaps, and the internal diameter of outer cylinder body 18 is identical with the internal diameter of outlet connection 16, the external diameter of outer cylinder body 18 and outlet
The external diameter of joint 16 is identical.
In the present embodiment, the upper end of housing 4 is sealedly connected with blind flange 8, and the explosion venting valve 27 also includes two suspension rods 2
With two springs 3, spring 3 is located at the top of blind flange 8, and suspension rod 2 is upright rod-like structure, and suspension rod 2 passes through blind flange 8, hung
The lower end of bar 2 is connected with weight 1, and the upper end of suspension rod 2 is fixed relative to the upper end of spring 3, and the lower end of spring 3 is relative to method
Blue lid 8 is fixed, and spring 3 can give weight 1 to provide restoring force.By setting the weight of weight 1 and the coefficient of elasticity of spring 3, just
The distance that different stream pressure lower heavy punches 1 move up can be adjusted, so as to adjust the valve of burst pressure together with rupture disk 15
Value.
On the threshold values of above-mentioned burst pressure, can select to flow into when air-flow promotes weight 1 to be moved upward to the gas of housing 4
When mouth connects with the air-flow side outlet 11 of housing 4, i.e., air-flow promotes weight 1 to be moved upward to the lower end of weight 1 and crosses air-flow side
Outlet 11 lower end when, the air-flow rupture immediately the rupture disk 15 of explosion part 5 (in the case of this kind, rupture disk 15 is resistance to
The pressure limit is smaller).Or it can also select to cross air-flow side outlet when air-flow promotes weight 1 to be moved upward to the lower end of weight 1
After 11 segment distance of lower end one, because the pressure of the air-flow has exceeded the 15 pressure-resistant limit of rupture disk, now air-flow can just make explosion
The rupture disk 15 of part 5 ruptures (in the case of this kind, the 15 pressure-resistant limit of rupture disk is larger).
In the present embodiment, in order that weight 1 can be moved vertically, the explosion venting valve 27 also includes guide thimble
13, guide thimble 13 is sheathed on outside suspension rod 2, and guide thimble 13 and the interference fits of suspension rod 2, guide thimble 13 are located at the He of blind flange 8
Between weight 1, upper end and the blind flange 8 of guide thimble 13 are connected, along the centerline direction of housing 4, guide thimble 13
Length and the length sum of weight 1 are less than the center line of air-flow side outlet 11 to the distance of blind flange 8, as weight 1 is located in Fig. 1
It is shown during dotted line position.
In the present embodiment, high-temperature resistant coating layer 14 is contained in the outside of weight 1, by the core of weight 1 and high-temperature flue gas every
Open, i.e., preferred weight 1 contains internal core and outside high-temperature resistant coating layer 14.Weight 1 is in round pie, the lower end of weight 1
Edge is provided with chamfered transition, and the upper end of the chamfered transition is concordant with the lower end of housing 4, and (upper end of the chamfered transition is circle, shell
The lower end of body 4 is circle, in two circles are generally aligned in the same plane), flange is equipped with outside the top and bottom of housing 4, such as housing 4
Top and bottom be externally provided with second flange 7.In use, the second flange 7 of the lower end of housing 4 and STEELMAKING PRODUCTION equipment high temperature
First flange 6 on smoke pipeline is connected.
The course of work of explosion venting valve 27 is described below：
High-temperature flue gas in spiral cylinder 21 allows pressure limit because combustion pressure is drastically increased to seal beyond weight 1,
Weight 1 is moved up by flue gas pressures effect, while flue gas goes out by air flow inlet and air-flow side successively from the side of weight 1
Flue gas is flowed into after mouthfuls 11 to conflux room.When flue gas confluxes indoor flue gas pressures beyond the pressure-resistant limit of rupture disk 15, rupture disk 15
Rupture action is occurred immediately upon, is released out high-temperature flue gas from high-temperature flue gas pipe.High-temperature flue gas is released returns to normal range (NR) to pressure
When interior, weight 1 is occurred to bottom offset until initial recovery sealing state by the elastic force force action of gravity and spring 3.
In original state, weight 1 and the air flow inlet gap of the lower end of housing 4 coordinate, and the flue gas in smoke discharging pipe is just
Only have space of a small amount of flue gas between weight 1 and the air flow inlet in the range of normal pressure power to overflow.Converter in smoke discharging pipe
High-temperature flue gas pressure is beyond weight 1 and when making a concerted effort of spring 3, and weight 1 shifts up, and flue gas flows out from the side of weight 1.
Converter high-temperature flue gas pressure in smoke discharging pipe is less than weight 1 and when making a concerted effort of spring 3, and weight 1 occurs to bottom offset until extensive
Multiple smoke impervious state.
The port of export of explosion part 5 is connected with high-temperature flue gas pipe 19, and rupture disk 15 is by the part group such as intensity film and diaphragm seal
Into.When flue gas confluxes indoor flue gas pressures beyond the 15 pressure-resistant limit of rupture disk in explosion part 5, rupture disk 15 occurs immediately upon brokenly
Action is split, is released out high-temperature flue gas from high-temperature flue gas pipe 19.The wherein structure on the basis of function is realized of rupture disk 15 is not limited to
This.
It is described above, it is only the specific embodiment of the present invention, it is impossible to the scope implemented is invented with its restriction, so it is equivalent
The displacement of component, or the equivalent variations made according to scope of patent protection of the present invention and modification, it should all still fall within what this patent was covered
Category.In addition, between technical characteristic and technical characteristic in the present invention, between technical characteristic and technical scheme, technical scheme with
It can be used between technical scheme with independent assortment.
Claims (10)
1. a kind of flue rotating device, it is characterised in that the flue rotating device includes spiral cylinder (21), spiral cylinder
(21) flue-dust retainer (24) and explosion venting valve (27) are connected with, flue-dust retainer (24) and explosion venting valve (27) are positioned at spiral cylinder (21)
Outside, flue-dust retainer (24) is located at the bottom of spiral cylinder (21), and the inner surface of spiral cylinder (21) is provided with wearing layer (22).
2. flue rotating device according to claim 1, it is characterised in that the upper end of spiral cylinder (21) enters provided with flue gas
Mouthful, the lower end of spiral cylinder (21) is provided with exhanst gas outlet, and explosion venting valve (27) is located at the top of spiral cylinder (21), flue-dust retainer (24)
Lower end be provided with cinder-discharging port (25), be provided with supporting construction (26), spiral cylinder (21) on the inside or outside of spiral cylinder (21)
Inside be provided with and can store the heat storage of heat.
3. flue rotating device according to claim 1, it is characterised in that spiral cylinder (21) is in erectility, spiral
The section of cylinder (21) is pentagon, and the pentagon contains the outer side edges (211) being sequentially connected, upper side edge (212), inner side edge
(213), lower side (214) and oblique side (215), outer side edges (211) and inner side edge (213) are vertically set, upside
Side (212) and lower side (214) are horizontally disposed, and the width of lower side (214) is less than the width of upper side edge (212),
Wearing layer (22) is located at outer side edges (211), oblique side (215) and lower side (214).
4. flue rotating device according to claim 1, it is characterised in that the explosion venting valve (27) includes housing (4), again
Hammer (1) and explosion part (5), housing (4) are cylindrical in shape structure, and the lower end of housing (4) is provided with air flow inlet, the lower end of housing (4)
It is connected with spiral cylinder (21), the side wall of housing (4) is provided with air-flow side outlet (11)；The air flow inlet of weight (1) and housing (4)
Gap coordinates, and weight (1) can rely on the effect of gravity to move down；The air-flow side that explosion part (5) is arranged at housing (4) goes out
Outside, explosion part (5) contains rupture disk (15) to mouth (11)；Flowed into when air-flow promotes weight (1) to be moved upward to the gas of housing (4)
When mouth connects with the air-flow side outlet (11) of housing (4), the air-flow can rupture the rupture disk (15) of explosion part (5).
5. flue rotating device according to claim 4, it is characterised in that housing (4) is in erectility, and housing (4) is outside
Outer sleeve (17) is arranged with, the toroidal cavity of closing is formed between housing (4) and outer sleeve (17), the toroidal cavity passes through air-flow
Side outlet (11) connects with the inside of housing (4)；The side wall of outer sleeve (17) is provided with sleeve outlet (12), and sleeve outlet (12) is outside
Be sealedly connected with outlet connection (16), outlet connection (16) is cylindrical shape, the center line of outlet connection (16) with housing (4)
Heart line is intersecting and vertical, and the port of export and the explosion part (5) of outlet connection (16) are tightly connected.
6. flue rotating device according to claim 5, it is characterised in that along the centerline direction of housing (4), outer sleeve
(17) length is less than the length of housing (4), and the upper end of outer sleeve (17) is less than the upper end of housing (4), under outer sleeve (17)
End is higher than the lower end of housing (4), and the center line of outer sleeve (17) overlaps with the center line of housing (4), and housing (4) contains multiple gas
Side outlet (11) is flowed, circumference of multiple air-flow side outlets (11) along housing (4) is arranged in order.
7. flue rotating device according to claim 5, it is characterised in that explosion part (5) also contains outer cylinder body (18),
The inner surface at the edge of rupture disk (15) and outer cylinder body (18) is sealedly and fixedly connected, the arrival end and outlet connection of outer cylinder body (18)
(16) the port of export is connected by flange, and the center line of outer cylinder body (18) overlaps with the center line of outlet connection (16), outer cylinder body
(18) internal diameter is identical with the internal diameter of outlet connection (16), and outlet connection (16) is connected with inert gas blowback interface (20).
8. flue rotating device according to claim 4, it is characterised in that the housing (4) of the explosion venting valve (27) is in straight
Vertical state, the upper end of housing (4) are sealedly connected with blind flange (8), and the explosion venting valve (27) also includes suspension rod (2) and spring (3),
Spring (3) is located at the top of blind flange (8), and suspension rod (2) is upright rod-like structure, and suspension rod (2) passes through blind flange (8), suspension rod
(2) lower end is connected with weight (1), and the upper end of suspension rod (2) is fixed relative to the upper end of spring (3), the lower end of spring (3)
Fixed relative to blind flange (8), spring (3) can give weight (1) to provide restoring force.
9. flue rotating device according to claim 8, it is characterised in that the explosion venting valve (27) also includes guide thimble
(13), guide thimble (13) is sheathed on suspension rod (2) outside, guide thimble (13) and suspension rod (2) interference fits, guide thimble (13) position
Between blind flange (8) and weight (1), upper end and the blind flange (8) of guide thimble (13) are connected, along housing (4)
Heart line direction, the length of guide thimble (13) and the length sum of weight (1) are less than the center line of air-flow side outlet (11) to method
The distance of orchid lid (8).
10. flue rotating device according to claim 4, it is characterised in that contain high-temperature resistant coating in the outside of weight (1)
Layer (14), weight (1) is in round pie, and the lower edge of weight (1) is provided with chamfered transition, the upper end of the chamfered transition and housing
(4) lower end is concordant, and flange is equipped with outside the top and bottom of housing (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711153954.6A CN107841589B (en) | 2017-11-20 | 2017-11-20 | Rotary flue device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711153954.6A CN107841589B (en) | 2017-11-20 | 2017-11-20 | Rotary flue device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107841589A true CN107841589A (en) | 2018-03-27 |
| CN107841589B CN107841589B (en) | 2023-12-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711153954.6A Active CN107841589B (en) | 2017-11-20 | 2017-11-20 | Rotary flue device |
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| Country | Link |
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| CN (1) | CN107841589B (en) |
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| CN207567274U (en) * | 2017-11-20 | 2018-07-03 | 北京京诚科林环保科技有限公司 | Flue rotating device |
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| FR1355017A (en) * | 1963-02-01 | 1964-03-13 | Primary blast furnace gas purification device | |
| CN2849385Y (en) * | 2005-08-24 | 2006-12-20 | 王德元 | Vacuum safety valve for vacuum boiler |
| EP2123778A1 (en) * | 2008-04-23 | 2009-11-25 | China Steel Corporation | Flue dust discharging method and system |
| RU2385950C1 (en) * | 2009-05-12 | 2010-04-10 | Александр Макарович Салдаев | Device for catching of desorganised emissions from metallurgycal aggregate |
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| Publication number | Publication date |
|---|---|
| CN107841589B (en) | 2023-12-08 |
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