CN105387214B - A kind of closed calcium carbide furnace charging system sealing device - Google Patents
A kind of closed calcium carbide furnace charging system sealing device Download PDFInfo
- Publication number
- CN105387214B CN105387214B CN201510937842.4A CN201510937842A CN105387214B CN 105387214 B CN105387214 B CN 105387214B CN 201510937842 A CN201510937842 A CN 201510937842A CN 105387214 B CN105387214 B CN 105387214B
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- lower sleeve
- sealing device
- charging system
- calcium carbide
- upper bush
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- 238000007789 sealing Methods 0.000 title claims abstract description 76
- 239000005997 Calcium carbide Substances 0.000 title claims abstract description 28
- CLZWAWBPWVRRGI-UHFFFAOYSA-N tert-butyl 2-[2-[2-[2-[bis[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]amino]-5-bromophenoxy]ethoxy]-4-methyl-n-[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]anilino]acetate Chemical compound CC1=CC=C(N(CC(=O)OC(C)(C)C)CC(=O)OC(C)(C)C)C(OCCOC=2C(=CC=C(Br)C=2)N(CC(=O)OC(C)(C)C)CC(=O)OC(C)(C)C)=C1 CLZWAWBPWVRRGI-UHFFFAOYSA-N 0.000 title claims abstract description 28
- 239000007789 gas Substances 0.000 claims abstract description 46
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 28
- 229910052757 nitrogen Inorganic materials 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 239000011241 protective layer Substances 0.000 claims description 7
- 238000009413 insulation Methods 0.000 claims description 5
- 125000006850 spacer group Chemical group 0.000 claims description 4
- 239000011230 binding agent Substances 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 239000002994 raw material Substances 0.000 abstract description 15
- 239000000428 dust Substances 0.000 abstract description 10
- 239000002341 toxic gas Substances 0.000 abstract description 8
- 230000006378 damage Effects 0.000 abstract description 4
- 208000027418 Wounds and injury Diseases 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 3
- 208000014674 injury Diseases 0.000 abstract description 3
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 6
- 239000011261 inert gas Substances 0.000 description 5
- 238000005453 pelletization Methods 0.000 description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- 235000012255 calcium oxide Nutrition 0.000 description 3
- 239000000292 calcium oxide Substances 0.000 description 3
- 229910002091 carbon monoxide Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000002360 explosive Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000008520 organization Effects 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 229910000863 Ferronickel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000002075 main ingredient Substances 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000009965 odorless effect Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/46—Sealings with packing ring expanded or pressed into place by fluid pressure, e.g. inflatable packings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D90/00—Component parts, details or accessories for large containers
- B65D90/54—Gates or closures
- B65D90/66—Operating devices therefor
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Architecture (AREA)
- Fluid Mechanics (AREA)
- Furnace Details (AREA)
Abstract
The present invention relates to charging technical field of sealing technology, disclose a kind of closed calcium carbide furnace charging system sealing device, including lower sleeve, upper bush, gas seal ring and expansion link, the lower end of lower sleeve and the inlet valve of feed bin are connected, the upper end of upper bush is provided with flange, and during lower sleeve is movably inserted in lower end from the upper end of lower sleeve；Lower sleeve is provided with corrector loop with the part that upper bush is socketed；Air seal is located on the upper end of lower sleeve, and air seal is equipped with gas feed and the annular slotted hole on gas seal ring lower inside circumference；One end of expansion link is connected with lower sleeve and the other end is connected with upper bush, for driving axial movement of the upper bush along the lower sleeve.The device has very reliable sealing, air can effectively be completely cut off, it is ensured that batch can car to feed bin feed when raw material all the time in the sealing space, prevent raw material and air contact and be oxidized, prevent dust and release of toxic gas simultaneously, it is to avoid produce pollution and human injury.
Description
Technical field
The present invention relates to charging technical field of sealing technology, more particularly to a kind of closed calcium carbide furnace charging system sealing device.
Background technology
The raw material that production calcium carbide is used is generally quick lime and coke, and that conventional closed calcium carbide furnace is added is Jiao of normal temperature
Charcoal and quick lime, in the absence of sealing problem, but it is high temperature pelletizing feed that present hot charging closed calcium carbide furnace, which adds, and Main Ingredients and Appearance is
Semicoke and quick lime, its temperature reach 500~800 DEG C, higher than the burning-point of semicoke, once the oxygen in ingress of air will fire
Burn, or even blast, it is therefore desirable to seal approach is taken to charging process, if poorly sealed, following adverse consequences can be caused：
(1) raw material is the inflammable and explosive pelletizing feed of high temperature, when batch can car feed hopper feeds, if poorly sealed, easily causes safety in production
Accident；(2) carbon in raw material is partially oxidized, and generates carbon monoxide, the ignition point of carbon monoxide is 650 DEG C, with air
The mixed explosion limit is 12.5~74%, belongs to flammable explosive gas, and carbon monoxide is hypertoxic gas, and colorless and odorless works as people
Low coverage leave away operation when, easily cause danger；(3) during raw material is from batch can car blanking, substantial amounts of dust can be produced, this
A little dust temperature are very high, equally with inflammable and explosive property, with great danger；(4) charging procedure seals are not tight, former
Material causes significant loss by the dioxygen oxidation in air, reduces yield, causes economic loss.
Hot charging closed calcium carbide furnace is when adding raw material, by batch can car by the feed bin of feedstock delivery to furnace roof, batch can
Car is connected with feed bin by sealing device, to complete charging process.The existing sealing device for charging system is typically all adopted
With being flexible coupling, the up and down motion of sealing device is realized using the cooperation of flexible connection structure and stretching structure, to improve its sealing
Property.But flexible connection structure non-refractory, is easily deformed damage, therefore be not suitable for conveying high temperature lump material, and existing sealing dress
Put it cannot be guaranteed that being fully sealed, air is entered inside sealing device easily by connection gap, so as to be reacted with raw material.
Therefore, it is not enough for more than, it is desirable to provide a kind of closed calcium carbide furnace charging system sealing device.
The content of the invention
(1) technical problem to be solved
The technical problem to be solved in the present invention is former when being the batch can car feed hopper charging for solving how to ensure closed calcium carbide furnace
Expect the problem of sealing, not ingress of air.
(2) technical scheme
In order to solve the above-mentioned technical problem, the invention provides a kind of closed calcium carbide furnace charging system sealing device, use
It is described in the discharge valve and the inlet valve of feed bin of binder tank car, including lower sleeve, upper bush, gas seal ring and expansion link
The lower end of lower sleeve is connected with the inlet valve of the feed bin, and the upper end of the upper bush, which is provided with, is used for the blanking with the batch can car
The flange of valve connection, during the lower sleeve is movably inserted in the lower end of the upper bush from the upper end of the lower sleeve；It is described
Lower sleeve is provided with corrector loop with the part that the upper bush is socketed；The air seal is located on the upper end of the lower sleeve, institute
State air seal and be equipped with gas feed and annular slotted hole, the annular slotted hole is located at the circle of the gas seal ring lower inside
Zhou Shang；One end of the expansion link is connected with the lower sleeve and the other end is connected with the upper bush, described for driving
Axial movement of the sleeve along the lower sleeve.
Preferably, the sealing device also includes sealing gasket, and the sealing gasket is located at the upper surface of the flange.
Further, the sealing gasket is fixed on the upper surface of the flange by annular pressing plate and sunk screw, described
Sealing gasket is made of exotic material.
Preferably, the sealing device also includes nitrogen feeder, and the nitrogen feeder is connected with the gas feed,
For providing nitrogen to the gas seal ring.
Preferably, the gas feed is two, and the angle between two gas feeds is 180 °.
Preferably, the corrector loop is annular round steel, and the annular round steel is two circles, and the two circle annular round steel are welded
In the inwall of the lower sleeve.
Preferably, the inwall of the upper bush is provided with protective layer, and the protective layer is wear-resistant castable.
Preferably, the two ends of the expansion link are connected with the lower sleeve and upper bush respectively by rotating hinge, described
Expansion link is cylinder or hydraulic cylinder or electric cylinder.
Preferably, the expansion link is 3,3 expansion link being arranged circumferentially along the lower sleeve.
Preferably, the connecting end surface of the lower sleeve and the feed bin inlet valve is provided with insulation spacer.
(3) beneficial effect
The above-mentioned technical proposal of the present invention has the following advantages that：
(1) closed calcium carbide furnace charging system of the invention has very reliable sealing with sealing device, can be effective
Completely cut off air, it is ensured that batch can car to feed bin feed when raw material all the time in the sealing space, prevent raw material with air contact by
Oxidation, while preventing dust and release of toxic gas, it is to avoid produce pollution and human injury.
(2) closed calcium carbide furnace charging system of the invention can be used for the conveying of high temperature lump material with sealing device, have
High temperature resistant, it is wear-resisting the characteristics of, can effectively prevent washing away for high temperature pelletizing feed, service life is long, and simple in construction, maintenance side
Just.
(3) closed calcium carbide furnace charging system sealing device of the invention can realize remote auto control, pass through expansion link
Control upper bush is quickly moved up and down, when batch can car in place after, quick response can be achieved, automatic and batch can underbody portion discharge valve is close
Envelope connection, opens the inlet valve on discharge valve and feed bin, realizes automatic blanking, charging rate is fast, and can realize remote control
System, automaticity is high, and safe operation is reliable, it is to avoid cause security incident and economic loss.
Brief description of the drawings
Fig. 1 is the sealing device and batch can car and feed bin attachment structure schematic diagram of the embodiment of the present invention；
Fig. 2 is the schematic diagram of sealing device of the embodiment of the present invention；
Fig. 3 is the gas seal ring schematic diagram of the embodiment of the present invention；
Fig. 4 is the sectional view of the gas seal ring of the embodiment of the present invention.
In figure：1：Sealing device；2：Batch can car；3：Feed bin；4：Inlet valve；5：Discharge valve；11：Lower sleeve；12：Upper set
Cylinder；13：Sealing gasket；14：Gas seal ring；141：Gas feed；142：Annular slotted hole；15：Expansion link；16：Corrector loop；17：
Flange；18：Protective layer.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
A part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill people
The every other embodiment that member is obtained on the premise of creative work is not made, belongs to the scope of protection of the invention.
As shown in Figure 1 to Figure 3, a kind of closed calcium carbide furnace charging system sealing device 1 provided in an embodiment of the present invention, is used
In the discharge valve 5 and the inlet valve 4 of feed bin 3 of binder tank car 2.As shown in Fig. 2 sealing device 1 includes lower sleeve 11, upper bush
12nd, gas seal ring 14 and expansion link 15, the lower end of lower sleeve 11 are connected with the inlet valve 4 of feed bin 3, and the upper end of upper bush 12 is set
There is the flange 17 being connected for the discharge valve 5 with batch can car 2, the lower end of upper bush 12 movably covers from the upper end of lower sleeve 11
Enter in lower sleeve 11, lower sleeve 11 is provided with corrector loop 16 with the part that upper bush 12 is socketed.Gas seal ring 14 is located at lower sleeve
11 upper end, gas seal ring 14 is provided with gas feed 141 and annular slotted hole 142, and annular slotted hole 142 is located at gas seal ring 14
On the circumference of lower inside.Specifically, as shown in Figure 3 and Figure 4, annular slotted hole 142 is multiple, along the circumference of gas seal ring 14
Uniform arrangement, and positioned at the lower inside of gas seal ring 14, it is preferred that the annular of annular slotted hole 142 and gas seal ring 14
Center angle at 45 °.One end of expansion link 15 is connected with lower sleeve 11 and the other end is connected with upper bush 12, for drive
Axial movement of the sleeve 12 along lower sleeve 11, expansion link 15 is provided with controlling organization, can realize the flexible of its piston rod by automatically controlled.
In use, when closed calcium carbide furnace needs charging, the batch can car 2 for filling raw material is transported to the top of sealing device 1,
Remote control is first passed through before charging, nitrogen or inert gas, nitrogen or inert gas are passed through into gas seal ring 14
Ejected from the annular slotted hole 142 of gas seal ring 14, barotropic gas sealing formed between upper bush 12 and lower sleeve 11,
Then start the controlling organization of expansion link 15, extend expansion link 15, drive upper bush 12 to rise, make upper bush 12 and batch can car
Keep compressing sealing between 2 bottom discharge valves 5, the inlet valve 4 on the top of feed bin 3 and falling for the bottom of batch can car 2 are then opened successively
Expect valve 5, by raw material deadweight blanking, after the completion of charging, then close the inlet valve 4 on the top of feed bin 3 and falling for the bottom of batch can car 2 successively
Expect valve 5, by the contraction of expansion link 15, decline upper bush 12, finally remove batch can car 2, complete charging task.In blanking mistake
Cheng Zhong, by gas seal ring 14 and the sealing function of the sealing structure of corrector loop 16, can effectively prevent what is produced during blanking
Dust pollution and toxic gas leak, and are reacted while air can be prevented to enter in lower sleeve 11 with raw material.Certainly, this reality
The sealing device 1 for applying example may be mounted at the top of feed bin 3, or be made of one with the inlet valve 4 at the top of feed bin 3, can also
It is made of one installed in the bottom of batch can car 2, or with the discharge valve 5 of the bottom of batch can car 2.
The closed calcium carbide furnace charging system sealing device 1 that the present embodiment is provided, between upper bush 12 and lower sleeve 11
Provided with the corrector loop 16 for playing guide effect, make upper bush 12 being capable of vertical up-or-down movement under the drive of expansion link 15, it is ensured that
It will not occur axial dipole field when moving, it is to avoid the socket gap of upper bush 12 and lower sleeve 11 becomes ambassador's dust and toxic gas
Overflow, while corrector loop 16 also acts as sealed effect, can effectively prevent high-temperature dust and toxic gas from entering lower sleeve 11
The gap being socketed with upper bush 12.The gas feed 141 of the gas seal ring 14 of the present embodiment is used for into gas seal ring 14
Be filled with nitrogen or inert gas, annular slotted hole 142 is then used as gas vent, can make nitrogen in gas seal ring 14 or
Inert gas enters the gap between upper bush 12 and lower sleeve 11, further effectively prevents dust and toxic gas from lower sleeve
11 and upper bush 12 be socketed gap outflow.Therefore, the sealing device 1 of the present embodiment has very reliable sealing, can
Effectively isolation air, it is ensured that batch can car 2 to feed bin 3 feed when raw material all the time be in sealing space in, prevent raw material from being connect with air
Touch and be oxidized, while preventing dust and release of toxic gas, it is to avoid produce pollution and human injury.
It is preferred that, the present embodiment is provided with sealing gasket 13 on the surface of the flange 17 of upper bush 12, and sealing gasket 13 passes through ring
Shape pressing plate and sunk screw are fixed on the upper surface of flange 17, can effectively ensure that the discharge valve 5 of upper bush 12 and batch can car 2 connects
The sealing connect, prevents air from entering sealing device 1 from the junction of upper bush 12 and discharge valve 5, at the same be also prevented from dust and
Toxic gas flows out from the junction of upper bush 12 and discharge valve 5.Sealing gasket 13 is made of exotic material, such as ceramic fibre
Felt, it is adaptable to the sealing of high-temperature material.
The sealing device 1 of the present embodiment also includes nitrogen feeder, and nitrogen feeder is connected with gas feed 141, is used for
Nitrogen is provided to gas seal ring 14.It is preferred that, gas feed 141 is provided with two, and the angle between two gas feeds 141 is
180 °, so that the nitrogen or inert gas pressure in gas seal ring 14 are evenly distributed, so as to improve sealing effectiveness.
The corrector loop 16 of the present embodiment is annular round steel, and annular round steel is welded in the interior of lower sleeve 11 provided with two circles
Wall simultaneously be arranged in parallel up and down, thus strengthens it and is oriented to and sealing function, is further ensured that drive of the upper bush 12 in expansion link 15
Under can vertical up-or-down movement, and keep sealing, while also overcoming the non-refractory that is flexible coupling in the prior art, not being suitable for height
The shortcoming of warm lump material conveying.
The inwall of the upper bush 12 of the present embodiment is provided with wear-resistant castable protective layer 18, and the main purpose of protective layer 18 is to protect
Upper bush 12 is protected, prevents upper bush 12 from being worn away by high temperature pelletizing feed, while playing heat-blocking action, the heated of sealing device 1 is reduced
Deformation, prevents expansion link 15 by high temperature failure, so as to improve the service life of sealing device 1.
The connecting end surface of the lower sleeve 11 of the present embodiment and the inlet valve 4 of feed bin 3 is provided with insulation spacer, the material of insulation spacer
Matter can be mica, to play a part of insulation high-temperature-resistant.
Thus, the above-mentioned sealing device 1 of the present embodiment can be used for the conveying of high temperature lump material, with high temperature resistant, wear-resisting
The characteristics of, washing away for high temperature pelletizing feed can be effectively prevented, service life is long, and simple in construction, easy to maintenance.
The two ends of the expansion link 15 of the present embodiment are connected with lower sleeve 11 and upper bush 12 respectively by rotating hinge, are stretched
Bar 15 can be cylinder or hydraulic cylinder or electric cylinder, and expansion link 15 is provided with 3, and circumference of 3 expansion links 15 along lower sleeve 11 is
Even arrangement, so that the stress balance of upper bush 12 is uniform, is further ensured that the sealing that upper bush 12 is connected with discharge valve 5.It is flexible
The inlet valve 4 of bar 15, the discharge valve 5 of batch can car 2 and feed bin 3 can take remote control, when batch can car 2 in place after, can be real
Existing quick response, automatic fast blanking, so as to improve the security and convenience of charging system, improves production environment.
What deserves to be explained is, sealing device 1 of the invention also may be used except the charging system available for hot charging closed calcium carbide furnace
With used in the charging system of ferronickel stove and converter.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
The present invention is described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：It still may be used
To be modified to the technical scheme described in foregoing embodiments, or equivalent substitution is carried out to which part technical characteristic；
And these modification or replace, do not make appropriate technical solution essence depart from various embodiments of the present invention technical scheme spirit and
Scope.
Claims (10)
1. a kind of closed calcium carbide furnace charging system sealing device, for the discharge valve and the inlet valve of feed bin of binder tank car,
It is characterized in that：Including lower sleeve, upper bush, gas seal ring and expansion link, the lower end of the lower sleeve and the feed bin
Inlet valve is connected, and the upper end of the upper bush is provided with the flange for being used for being connected with the discharge valve of the batch can car, the upper bush
Lower end be movably inserted in the lower sleeve from the upper end of the lower sleeve；The lower sleeve is socketed with the upper bush
Part is provided with corrector loop；The air seal is located on the upper end of the lower sleeve, and the air seal is equipped with gas feed
And annular slotted hole, the annular slotted hole is on the circumference of the gas seal ring lower inside；One end of the expansion link with
The lower sleeve is connected and the other end is connected with the upper bush, for driving the upper bush to be moved along the axial direction of the lower sleeve
It is dynamic.
2. closed calcium carbide furnace charging system sealing device according to claim 1, it is characterised in that：The sealing device
Also include sealing gasket, the sealing gasket is located at the upper surface of the flange.
3. closed calcium carbide furnace charging system sealing device according to claim 2, it is characterised in that：The sealing gasket leads to
Cross annular pressing plate and sunk screw is fixed on the upper surface of the flange, the sealing gasket is made of exotic material.
4. closed calcium carbide furnace charging system sealing device according to claim 1, it is characterised in that：The sealing device
Also include nitrogen feeder, the nitrogen feeder is connected with the gas feed, for providing nitrogen to the gas seal ring
Gas.
5. closed calcium carbide furnace charging system sealing device according to claim 1, it is characterised in that：The gas feed
For two, the angle between two gas feeds in a circumferential direction is 180 °.
6. closed calcium carbide furnace charging system sealing device according to claim 1, it is characterised in that：The corrector loop is
Annular round steel, the annular round steel is two circles, and the two circle annular round steel are welded in the inwall of the lower sleeve.
7. closed calcium carbide furnace charging system sealing device according to claim 1, it is characterised in that：The upper bush
Inwall is provided with protective layer, and the protective layer is wear-resistant castable.
8. closed calcium carbide furnace charging system sealing device according to claim 1, it is characterised in that：The expansion link
Two ends are connected with the lower sleeve and upper bush respectively by rotating hinge, and the expansion link is cylinder or hydraulic cylinder or electronic
Cylinder.
9. closed calcium carbide furnace charging system sealing device according to claim 1, it is characterised in that：The expansion link is
3,3 expansion link being arranged circumferentially along the lower sleeve.
10. closed calcium carbide furnace charging system sealing device according to claim 1, it is characterised in that：The lower sleeve
Insulation spacer is provided with the connecting end surface of the inlet valve of the feed bin.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510937842.4A CN105387214B (en) | 2015-12-15 | 2015-12-15 | A kind of closed calcium carbide furnace charging system sealing device |
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| CN201510937842.4A CN105387214B (en) | 2015-12-15 | 2015-12-15 | A kind of closed calcium carbide furnace charging system sealing device |
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| CN107954163A (en) * | 2017-11-06 | 2018-04-24 | 浙江德瑞摩擦材料有限公司 | A kind of automatic material transport system |
| CN110508332B (en) * | 2019-08-21 | 2021-12-07 | 中国航空制造技术研究院 | Combined flexible air purification cabin device |
| CN111220773B (en) * | 2019-12-04 | 2022-09-16 | 重庆朕尔医学研究院有限公司 | Poisonous gas monitoring devices of mill |
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| CN105387214A (en) | 2016-03-09 |
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