CN205933879U - Converter pushing off slag slide gate nozzle device - Google Patents
Converter pushing off slag slide gate nozzle device Download PDFInfo
- Publication number
- CN205933879U CN205933879U CN201620931071.8U CN201620931071U CN205933879U CN 205933879 U CN205933879 U CN 205933879U CN 201620931071 U CN201620931071 U CN 201620931071U CN 205933879 U CN205933879 U CN 205933879U
- Authority
- CN
- China
- Prior art keywords
- brick
- frame
- spring
- plate
- sliding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Carbon Steel Or Casting Steel Manufacturing (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Abstract
The utility model discloses a control gate -type converter pushing off slag slide gate nozzle device, fixed gate axle bed in fixed frame both sides setting " F " type, its centre bore sets up to 172~177mm to the distance of the tank bottom in inside slip plate brick groove, at switching frame both sides setting " T " type spring chamber, the width of spring plate and slide rail has been compromise, and simultaneously, spring chamber upper and lower both sides thickening sets up the dodge gate shaft hole, fix fixed frame on the debugging frame, open the door >= 110 do not have the interference extremely, during the pressurization operation, the face presses the bolt to pass spring plate respectively, a spring, the switching frame is screwed on fixed frame, in evenly transmitting the face pressure to through the slide rail, between the outer smooth plate brick. The utility model provides an angle of opening the door is big, the even invariant of transmission is pressed to undulant little, the face of spring pressure, off -line convenient operation, the maintenance is simple, with low costs, the security performance is good converter pushing off slag slide gate nozzle device, is present below the 180 tons ideal substitute products of converter pushing off the slag device.
Description
Technical field
The utility model belongs to steel-making field of mechanical technique, particularly to a kind of converter tapping being arranged on converter taphole
Pushing off the slag converter slag-resisting sliding nozzle device.
Background technology
In currently known less than 180 tons big-and-middle-sized converter taphole slide plate pushing off the slag sliding nozzle devices, typical structure is
Inner slider brick bottom land plate thickness, in order to reduce production cost and device total height, is generally set to by left and right opening door formula structure
10mm, to reduce inner slider brick public affairs open height and with outer sliding plate brick public affairs open height identical.In order to ensure the peace of device left and right opening door
Quan Xing, the height setting of usual fixed frame door-hinge seat is as far as possible low, the bottom land at general door-hinge bore center to inner slider brick groove
Distance is set to 120～140mm.Its shortcoming is：Sliding nozzle device open the door 65 ° -75 ° when, opening and closing framework spring housing with
Eyelet bolt interference on debugging frame, open angle wretched insufficiency（Normal requirement >=100 °, preferable more than 110 °）, offline replacing
When slide plate and the mouth of a river, change narrow space, operation very difficult, labour intensity substantially increases, simultaneously device cleaning difficult in maintenance,
Maintenance time is long, has had a strong impact on resistance to material installation, part cleaning maintenance work quality and efficiency, has reduced the security of system
Energy.
For solving device left and right opening door angle wretched insufficiency problem, currently known scheme is：Big for more than 180 tons
Type skimming device, by being gross thickness 30～35mm by inner slider brick bottom land plate thickness increase by 20～25mm, to improve fixed frame
Frame door-hinge seat centre-height, makes device left and right opening door angle increase and reaches 83～90 ° about, reach use requirement reluctantly, but
Highly increase with inner slider brick, device total height increases, the problem of system synthesis cost increase, big-and-middle for less than 180 tons
Type converter slag-resisting device, left and right opening door angle wretched insufficiency is still the technical barrier of puzzlement industry.
In currently known converter taphole slide plate pushing off the slag sliding nozzle device, opening and closing framework spring cell structure is straight-through
Formula, face pressure bolt passes through spring bearer plate two side holes, screws face pressure bolt, and spring pressure passes through fixed rack and the transmission of slip slide rail
To between two slide plates, realize face pressure loading procedure.It is primarily present problems with：In the case of opening and closing frame width is constant, bullet
Spring platen width cannot be taken into account with slide rail width, when the setting of slide rail width is normal（General 35～40mm）, spring bearer plate width
Too small, general 64～65mm（Corresponding aperture minimum wall thickness (MINI W.) 8～9mm）, two ends easily upwarp deformation, otherwise slide rail width is less than normal, makes
One-tenth spring pressure fluctuation is big, face pressure transmission stability declines, equipment safety reduction, easily causes bleed-out accident between slide plate.
Utility model content
In order to solve above-mentioned technical problem, the utility model provides a kind of converter slag-resisting sliding nozzle device.
The technical solution of the utility model is：
A kind of converter slag-resisting sliding nozzle device, including fixed frame, opening and closing framework, sliding frame, offline driving means,
Online driving means, inner nozzle pressing plate, outer mouth of a river seat, outer mouth of a river top-fastener, main protection thermal insulation board, auxiliary protection thermal insulation board, debugging
Frame, connecting plate, inner slider brick, outer sliding plate brick, inner nozzle brick and outer nozzle brick, described fixed frame and opening and closing framework switch gate
Axle links together, setting sliding frame in opening and closing framework, and opening and closing framework and sliding frame two side position are correspondingly arranged solid respectively
Determine slide rail, slip slide rail, on sliding frame, setting outer mouth of a river seat and main protection thermal insulation board, during off-line operation, fixed frame are used
Eyelet bolt is fixed on adjusting bracket, opens opening and closing framework to 110 °, outer sliding plate brick is individually positioned in inner slider brick
In fixed frame and sliding frame brick groove, closure opening and closing framework, sliding frame is connected and drives with offline driving means bearing pin
Dynamic sliding frame, makes outer slide plate and inner slider centering, outer nozzle brick is installed in the seat of the outer mouth of a river and with outer mouth of a river top-fastener top
Tightly, complete the Renewal process of resistance to material；As online converter taphole skimming device inner nozzle brick, inner slider brick, outer sliding plate brick and Wai Shui
After mouthful brick uses the life-span, the inner nozzle brick that more renews simultaneously is pressed on, with inner nozzle pressing plate, the pushing off the slag inside connecting plate, more renewing
Device is simultaneously connected with connecting plate and online driving means respectively, drives slider bar to move back and forth, drives outer slide plate and the outer mouth of a river
Brick is close to inner slider and is steadily slided, and completes converter tapping and pushing off the slag overall process.
In order to increase the open angle of skimming device, raise 40～45mm by door-hinge seat is fixed on fixed frame, make door-hinge
The distance of the bottom land to inner slider brick groove for the bore reaches 165～180mm（Preferred value 172～177mm）, keep inner slider brick bottom land
When plate thickness is constant（10mm）, when opening skimming device to 110 °, opening and closing framework is no longer occurred with the eyelet bolt on debugging frame
Interfere, be very easy to off-line operation and maintenance work.It is respectively provided with reinforcement platform outside fixing door-hinge seat simultaneously, make solid up and down
Determine door-hinge seat all in " F " type it is ensured that device open the door when security.
The described opening and closing framework left and right sides arranges up big and down small T-shape spring housing, and the upper and lower both sides of spring housing thicken and arrange
Dodge gate axis hole, spring interior setting spring bearer plate, spring lead, spring, face pressure bolt, face pressure bolt passes through spring pressure
Plate, the bolt hole of opening and closing framework, linked together opening and closing framework, spring, spring bearer plate compression and with fixed frame, complete
The pressure process of whole device.In the case of opening and closing frame width is constant, the setting of T-shape spring housing, make spring bearer plate and cunning
Rail width is all effectively ensured, and spring bearer plate width reaches 74～75mm（Corresponding aperture minimum wall thickness (MINI W.) 13～14mm, thickeies 50%
More than）, slide rail width reach 38～40mm（General slide rail width 30-32mm）, meanwhile, using novel spring and reduce spring number
Amount, outside setting spring bearer plate bolt hole, number of springs is one, further increases spring bearer plate non-deformability, by spring
The pressing plate life-span improve 3～5 times, effectively reduce spring pressure fluctuate and make face pressure transmit evenly, more stable, greatly improve
Security of system and stability.
Also include main protection thermal insulation board, auxiliary protection thermal insulation board, main protection thermal insulation board fixation is in the outside of outer mouth of a river seat, auxiliary anti-
Shield thermal insulation board is fixed on the outside of spring bearer plate, and main protection thermal insulation board afterbody is set to streamlined.Alleviate converter normally to smelt
When the collision to device for the dropping, the occurrence of reduce device to body of heater petticoat pipe interference and collision, improve the safety of device
Performance.
In opening and closing framework afterbody setting totally enclosed type pendant thing baffle plate, in converter steelmaking process, device is blocked completely, prevent
Only body of heater falling object from high altitude is fallen into inside device, increased security and the reliability of device.
Arrange outside described sliding frame and inside outer mouth of a river seat, outer mouth of a river seat, outer mouth of a river top-fastener is set, the outer mouth of a river holds out against
Device is connected with outer mouth of a river seat with three bolts and tightens together, and extends the service life of outer mouth of a river top-fastener, connects more firm
Reliable.
Also include inner slider hold down gag and outer slide plate hold down gag, inner slider brick is fixed on by inner slider hold down gag
Determine in framework, outer sliding plate brick is fixed in sliding frame outer slide plate hold down gag.
The beneficial effects of the utility model are：
1st, the distance of door-hinge bore to inner slider brick groove reaches 165～180mm（Preferred value 172～177mm）, sliding in holding
Plate brick bottom land plate thickness is constant（10mm）, when opening skimming device to 110 °, the eyelet bolt on opening and closing framework and debugging frame is not
Interfere again, be very easy to off-line operation and maintenance work.
The 2nd, T-shape spring housing is set, in the case of opening and closing frame width is constant, so that spring bearer plate and slide rail width is all obtained
It is effectively ensured, spring bearer plate width reaches 74～75mm（Corresponding aperture minimum wall thickness (MINI W.) 13～14mm, thickeies more than 50%）, slide rail width
Degree reaches 38～40mm（General slide rail width 30-32mm）, meanwhile, using novel spring and reduce number of springs, spring is set
Outside follower bolt hole, number of springs is one, further increases spring bearer plate non-deformability, the spring bearer plate life-span is carried
High 3～5 times, effectively reduce spring pressure fluctuate and make face pressure transmit evenly, more stable, greatly improve security of system
And stability.
The application provides a kind of open angle big (>=110 °), and spring pressure fluctuation is little, face pressure transmission homogeneous constant, from
Line is easy to operate, maintenance is simple, low cost, and the left and right gate-type converter slag-resisting sliding nozzle device having a safety feature, is current 180
The preferable substitute products of the following converter slag-resisting device of ton.
Brief description
Fig. 1 is the enabling three-view diagram of converter slag-resisting sliding nozzle device of the present utility model（Hiding debugging frame support, opens the door
110°）；
Fig. 2 is the front view of converter slag-resisting sliding nozzle device of the present utility model；
Fig. 3 is the enabling upward view of converter slag-resisting sliding nozzle device of the present utility model（Open the door 110 °）；
Fig. 4 is pressurization completely closed state between slide plate in converter slag-resisting sliding nozzle device of the present utility model
Longitudinal sectional view (pushing off the slag state)；
Fig. 5 is the 3-D view of the fixed frame in converter slag-resisting sliding nozzle device of the present utility model；
Fig. 6 is the assembling 3-D view of the opening and closing framework in converter slag-resisting sliding nozzle device of the present utility model；
Fig. 7 is horizontal stroke when pressurizeing and fully open between slide plate in converter slag-resisting sliding nozzle device of the present utility model
To sectional view (tapping state).
Specific embodiment
Referring to accompanying drawing 1-7, a kind of converter slag-resisting sliding nozzle device, including fixed frame 1, opening and closing framework 2, sliding frame
3rd, offline driving means 20, online driving means 21, inner nozzle pressing plate 63, outer mouth of a river seat 64, outer mouth of a river top-fastener 65, main protection
Thermal insulation board 66, auxiliary protection thermal insulation board 67, debugging frame 70, connecting plate 72, inner slider brick 102, outer sliding plate brick 103, inner nozzle brick 101
And outer nozzle brick 104, described fixed frame 1 is linked together with switch door-hinge 16 with opening and closing framework 2, arranges in opening and closing framework 2
Sliding frame 3, opening and closing framework 2 is correspondingly arranged fixed rack 13, slip slide rail 14 respectively with 3 liang of side positions of sliding frame, slides
Outer mouth of a river seat 64 and main protection thermal insulation board 66 are arranged on framework 3, during off-line operation, fixed frame 1 is used eyelet bolt 71 fixing
On adjusting bracket, open opening and closing framework 2（To 110 ° about）, outer sliding plate brick 103 is individually positioned in fixation with inner slider brick 102
In framework 1 and sliding frame 3 brick groove, closure opening and closing framework 2, sliding frame 3 is connected simultaneously with bearing pin with offline driving means 20
Drive sliding frame 3, make outer slide plate and inner slider centering, outer nozzle brick 104 is installed in outer mouth of a river seat 64 and uses the outer mouth of a river
Top-fastener 65 holds out against, and completes the Renewal process of resistance to material；When online converter taphole skimming device inner nozzle brick 101, inner slider brick
102nd, after outer sliding plate brick 103 and outer nozzle brick 104 use the life-span, the inner nozzle brick 101 that more renews with inner nozzle pressing plate 63
It is pressed on inside connecting plate 72, the skimming device more renewing simultaneously is connected with connecting plate 72 and online driving means respectively, drives
Slider bar moves back and forth, and drives outer slide plate and outer nozzle brick 104 to be close to inner slider and steadily slide, completes converter tapping and pushing off the slag is complete
Process.
In order to increase the open angle of skimming device, raise 40～45mm by door-hinge seat 10 is fixed on fixed frame 1, make door
The distance of the bottom land to inner slider brick groove 12 for the axle bed hole reaches 165～180mm（In the present embodiment preferred value be 172～
177mm）, when keeping inner slider brick groove 12 base plate thickness constant（10mm）, when opening skimming device to 110 °, opening and closing framework 2 with
Eyelet bolt 71 on debugging frame 70 no longer interferes, and is very easy to off-line operation and maintenance work.Fixing simultaneously
It is respectively provided with reinforcement platform 11 outside door-hinge seat 10, make to fix up and down door-hinge seat 10 all in " F " type it is ensured that safety during device enabling
Property.
Described opening and closing framework 2 left and right sides arranges up big and down small T-shape spring housing 51, T-shape spring housing both sides about 51
Thicken and arrange dodge gate axis hole, setting spring bearer plate 54, spring lead 55, spring 53, face pressure spiral shell in T-shape spring housing 51
Bolt 52, face pressure bolt 52 passes through spring bearer plate 54, the bolt hole of opening and closing framework 2, will be opened and closed framework 2, spring 53, spring bearer plate 54
Compression is simultaneously linked together with fixed frame 1, completes the pressure process of whole device.The setting of T-shape spring housing 51, is opening
Close framework 2 width constant in the case of, so that spring bearer plate 54 and slide rail width is all effectively ensured, spring bearer plate 54 width reaches
74～75mm（Corresponding aperture minimum wall thickness (MINI W.) 13～14mm, thickeies more than 50%）, slide rail width reach 38～40mm（General slide rail width
Degree 30-32mm）, meanwhile, using novel spring 53 and reduce spring 53 quantity, the outer lateral spring 53 of setting spring bearer plate 54 bolt hole
Quantity is one, further increases spring bearer plate 54 non-deformability, spring bearer plate 54 life-span is improved 3～5 times, effectively subtracts
Lacked spring 53 pressure oscillation and make face pressure transmit evenly, more stable, greatly improve security of system and stability.
Converter slag-resisting device also sets up main protection thermal insulation board 66, auxiliary protection thermal insulation board 67, is separately fixed at outer mouth of a river seat 64
And outside spring bearer plate 54, main protection thermal insulation board 66 afterbody is set to streamlined, alleviates dropping pair when converter is normally smelted
The collision of device, the occurrence of reduce device to body of heater petticoat pipe interference and collision, improves the security performance of device.
Additionally, in opening and closing framework 2 afterbody setting totally enclosed type pendant thing baffle plate 15, by device top in converter steelmaking process
Block completely, prevent body of heater falling object from high altitude from falling into inside device, increased security and the reliability of device.
Outer mouth of a river seat 64 is set outside sliding frame, and outer mouth of a river seat 64 is internal to arrange outer mouth of a river top-fastener 65, outer mouth of a river top
Tight device 65 is connected with outer mouth of a river seat 64 with three bolts and tightens together and hold out against outer nozzle brick 104, extends the outer mouth of a river and holds out against
The service life of device 65, connects more solid and reliable.
Also include inner slider hold down gag 30 and outer slide plate hold down gag 31, inner slider hold down gag 30 is by inner slider brick
102 are fixed in fixed frame 1, and outer sliding plate brick 103 is fixed in sliding frame 3 outer slide plate hold down gag 31.
Embodiment described above is only preferred embodiment of the present utility model to be described, without departing from this reality
On the premise of new design spirit, the various modifications that those of ordinary skill in the art make to the technical solution of the utility model
And improvement, all should fall in the protection domain of the utility model claims determination.
Claims (7)
1. a kind of converter slag-resisting sliding nozzle device is it is characterised in that include fixed frame（1）, opening and closing framework（2）, slider bar
Frame（3）, offline driving means（20）, online driving means（21）, inner nozzle pressing plate（63）, outer mouth of a river seat（64）, outer mouth of a river top
Tight device（65）, main protection thermal insulation board（66）, auxiliary protection thermal insulation board（67）, debugging frame（70）, connecting plate（72）, inner nozzle brick
（101）, inner slider brick（102）, outer sliding plate brick（103）And outer nozzle brick（104）；Described fixed frame（1）With opening and closing framework（2）
By switching door-hinge（16）Rotate links together, and is opened and closed framework（2）Interior setting sliding frame（3）, it is opened and closed framework（2）With cunning
Dynamic framework（3）Two side positions are correspondingly arranged fixed rack respectively（13）, slip slide rail（14）, sliding frame（3）The outer water of upper setting
Mouth seat（64）And main protection thermal insulation board（66）, outer sliding plate brick（103）It is arranged on sliding frame（3）Brick groove in, inner slider brick
（102）It is arranged on fixed frame（1）Brick groove in；Outer nozzle brick（104）Setting is in outer mouth of a river seat（64）Interior and with the outer mouth of a river top
Tight device（65）Hold out against；In fixed frame（1）Both sides are respectively provided with the fixing door-hinge seat of " F " type up and down（10）, the fixing door-hinge of " F " type
Seat（10）Door-hinge bore to fixed frame（1）Inner slider brick groove（12）Bottom land distance be 165～180mm；Online gear
During slag tapping, inner nozzle brick（101）Use inner nozzle pressing plate（63）It is fixed on connecting plate（72）On, fixed frame（1）Use movable joint spiral shell
Bolt（71）It is fixed on connecting plate（72）On, sliding frame（3）With online driving means（21）It is connected；During off-line operation, fixing
Framework（1）Use eyelet bolt（71）It is fixed on debugging frame（70）On, sliding frame（3）With offline driving means（20）It is connected.
2. converter slag-resisting sliding nozzle device according to claim 1 is it is characterised in that the fixing door of described " F " type
Axle bed（10）Door-hinge bore to fixed frame（1）Inner slider brick groove（12）Bottom land distance be 172～177mm.
3. converter slag-resisting sliding nozzle device according to claim 2 is it is characterised in that be opened and closed framework（2）Left and right two
The up big and down small T-shape spring housing of side setting（51）, T-shape spring housing（51）Both sides thicken and arrange dodge gate axis hole up and down,
Spring interior setting spring bearer plate（54）, spring lead（55）, spring（53）, face pressure bolt（52）, face pressure bolt（52）Wear
Cross spring bearer plate（54）, opening and closing framework（2）Bolt hole, framework will be opened and closed（2）, spring（53）, spring bearer plate（54）Compression is simultaneously
With fixed frame（1）Link together.
4. converter slag-resisting sliding nozzle device according to claim 3 is it is characterised in that also include main protection thermal insulation board
（66）, auxiliary protection thermal insulation board（67）, main protection thermal insulation board（66）Fix in outer mouth of a river seat（64）Outside, auxiliary protection thermal insulation board
（67）It is fixed on spring bearer plate（54）Outside, main protection thermal insulation board（66）Afterbody is set to streamlined.
5. converter slag-resisting sliding nozzle device according to claim 4 is it is characterised in that be opened and closed framework（2）Afterbody sets
Put totally enclosed type pendant thing baffle plate（15）, in converter steelmaking process, the top of converter slag-resisting sliding nozzle device is blocked completely.
6. converter slag-resisting sliding nozzle device according to claim 5 is it is characterised in that described sliding frame（3）Outside
Outer mouth of a river seat is set（64）, outer mouth of a river seat（64）Internal setting outer mouth of a river top-fastener（65）, outer mouth of a river top-fastener（65）With three
Bolt and outer mouth of a river seat（64）Connection tightens together.
7. converter slag-resisting sliding nozzle device according to claim 6 is it is characterised in that also include inner slider hold down gag
（30）With outer slide plate hold down gag（31）, inner slider hold down gag（30）By inner slider brick（102）It is fixed on fixed frame（1）
Interior, outer slide plate hold down gag（31）By outer sliding plate brick（103）It is fixed on sliding frame（3）Interior.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620931071.8U CN205933879U (en) | 2016-08-24 | 2016-08-24 | Converter pushing off slag slide gate nozzle device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620931071.8U CN205933879U (en) | 2016-08-24 | 2016-08-24 | Converter pushing off slag slide gate nozzle device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205933879U true CN205933879U (en) | 2017-02-08 |
Family
ID=57951683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620931071.8U Active CN205933879U (en) | 2016-08-24 | 2016-08-24 | Converter pushing off slag slide gate nozzle device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205933879U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106086297A (en) * | 2016-08-24 | 2016-11-09 | 河南熔金高温材料股份有限公司 | A kind of converter slag-resisting sliding nozzle device |
| CN110923392A (en) * | 2019-12-24 | 2020-03-27 | 马鞍山瑞恒精密制造有限公司 | Horizontal sliding plate slag blocking and flow control device for converter |
-
2016
- 2016-08-24 CN CN201620931071.8U patent/CN205933879U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106086297A (en) * | 2016-08-24 | 2016-11-09 | 河南熔金高温材料股份有限公司 | A kind of converter slag-resisting sliding nozzle device |
| CN106086297B (en) * | 2016-08-24 | 2018-02-13 | 河南熔金高温材料股份有限公司 | A kind of converter slag-resisting sliding nozzle device |
| CN110923392A (en) * | 2019-12-24 | 2020-03-27 | 马鞍山瑞恒精密制造有限公司 | Horizontal sliding plate slag blocking and flow control device for converter |
| CN110923392B (en) * | 2019-12-24 | 2024-04-05 | 马鞍山瑞恒精密制造有限公司 | Transverse sliding plate slag blocking and flow controlling device for converter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106086297B (en) | A kind of converter slag-resisting sliding nozzle device | |
| CN205933879U (en) | Converter pushing off slag slide gate nozzle device | |
| CN209578130U (en) | A kind of handware multi-angle die casting equipment | |
| CN105713633B (en) | Coking coal blending method with participation of medium and high sulfur fertilizer coal | |
| CN206035790U (en) | Horizontal combination valve fluid end | |
| CN105368999A (en) | Purging device and technology of blast furnace charging bucket weighing system | |
| CN208621680U (en) | A kind of electroscope | |
| CN210512641U (en) | Electric melting furnace door | |
| CN209101776U (en) | One kind making the clean-burning blast furnace of material | |
| CN202032595U (en) | Cold tube type boiler slag cooling device in jacket | |
| CN216808696U (en) | Dry quenching system | |
| CN201735773U (en) | Press cover device for aluminum flowing openings | |
| CN206755891U (en) | A kind of rotary forced-air cooler pressure-adjustable elastic sealing device | |
| CN203686197U (en) | Double-plugboard hot-air-isolating door | |
| CN203212522U (en) | Energy-saving heat-recovery tamping type coke oven | |
| CN201206647Y (en) | Rising-down check valve for nuclear 1 | |
| CN207483664U (en) | A kind of entrance lock of vertical type semi-coke stove | |
| CN217440797U (en) | Positive pressure releasing device for boiler furnace | |
| CN201959250U (en) | Traditional Chinese medicine extracting pot | |
| CN208183046U (en) | Supporting mechanism under a kind of molten copper refining fire door | |
| CN213288636U (en) | Injection structure of die casting machine for crankshaft case cover | |
| CN115505415A (en) | Catalytic cracking pilot scale is multidirectional closed detecting element for device | |
| CN208320773U (en) | Super corrosion-resistant graphite seal head for penta chloropyridine main reactor | |
| CN205646471U (en) | Cubical switchboard structure that can prevent fires | |
| CN108301725A (en) | A kind of intelligent electric door closer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |