CN206802008U - A kind of LF stoves furnace cover lifting hydraulic cylinder cooling device - Google Patents
A kind of LF stoves furnace cover lifting hydraulic cylinder cooling device Download PDFInfo
- Publication number
- CN206802008U CN206802008U CN201720661491.3U CN201720661491U CN206802008U CN 206802008 U CN206802008 U CN 206802008U CN 201720661491 U CN201720661491 U CN 201720661491U CN 206802008 U CN206802008 U CN 206802008U
- Authority
- CN
- China
- Prior art keywords
- pipe
- cooling water
- cooling
- hydraulic cylinder
- water
- 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.)
- Expired - Fee Related
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 55
- 239000000498 cooling water Substances 0.000 claims abstract description 104
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 81
- 239000002184 metal Substances 0.000 claims description 24
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 239000012530 fluid Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000009434 installation Methods 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- 239000011737 fluorine Substances 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Furnace Details (AREA)
Abstract
A kind of LF stoves furnace cover lifting hydraulic cylinder cooling device, belongs to LF furnace apparatus technical fields, and for solving the problems, such as bell hydraulic cylinder, service life is short in high temperature environments.Its technical scheme is：Cooling jacket is looped around hydraulic cylinder periphery, cooling jacket is concentric with hydraulic cylinder body, the length of cooling jacket and the length of hydraulic cylinder match, there are water inlet interface and backwater interface respectively in the top and bottom of cooling jacket, water inlet interface and backwater interface are connected with cooling water pipe respectively, and valve is provided with cooling water pipe.The utility model is simple in construction, easy for installation, cooling effect is notable.After the utility model, the average life of hydraulic cylinder extended to 2 years from three months, significantly reduce the repair and maintenance cost of bell hydraulic cylinder device, reduce maintenance load, prevent because of the generation for the production accident that hydraulic cylinder failure causes bell deflection to scrape broken Electrode, the purpose for reached steady production, increasing economic efficiency.
Description
Technical field
A kind of LF stoves furnace cover lifting hydraulic cylinder is the utility model is related to, belongs to LF furnace apparatus technical fields.
Background technology
LF stoves are a kind of external refining equipments, really a kind of electric arc furnaces of special shape, the basic functional principle of LF stoves
It is：Bell is first risen and is raised to extreme higher position, and the buggy ladle for being loaded with ladle is reached below bell, and ladle and bell centering, bell decline
It is suitable for reading to cover ladle, then three-phase electrode is powered from bell insertion ladle suitable for reading and carries out heating smelting.Bell is in smelting process
In play a part of insulation, reduce molten steel splash loss and reduce surrounding air and influence molten steel composition.Current LF stove bells
Lowering or hoisting gear mostly uses three-point type hydraulic cylinder lifting device, and hydraulic cylinder is common hydraulic cylinder, although the sealing of hydraulic cylinder
Part is using resistant to elevated temperatures fluorine glue, but because working environment maximum temperature reaches 290 degrees Celsius, close to the high temperature resistant of fluorine glue
The limit, cause the service life of hydraulic cylinder very short.And as dirt has been absorbed in the increasingly tight person of outstanding talent of Environmental Protection Situation, current LF furnace sides
It can not meet to require, many LF stoves are transformed, and are added top and are absorbed dirt, side, top suction compound dust-collection device are following LF stoves
Designer trends, this dust arrester added enclosing around body of heater so that bell hydraulic cylinder highest operating ambient temperature is up to 350
Degree Celsius, it more have impact on the service life of hydraulic cylinder, it is therefore desirable to often change, not only have impact on the continuity of production, increase
Maintenance load, also improves cost, it is quite necessary to be improved.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of LF stoves furnace cover lifting hydraulic cylinder cooling device, this
Cooling device can make the seal of hydraulic cylinder be worked close under normal temperature, so as to which the service life of hydraulic cylinder be greatly improved, reach
To steady production, cost-effective purpose.
Solve above-mentioned technical problem technical scheme be：
A kind of LF stoves furnace cover lifting hydraulic cylinder cooling device, it includes cooling jacket, cooling water pipe, valve, cooling jacket
Hydraulic cylinder periphery is looped around, cooling jacket is concentric with hydraulic cylinder body, and the length of cooling jacket and the length of hydraulic cylinder match,
There is 5-10mm gap between the cooling jacket inwall and hydraulic cylinder body outer wall of hydraulic cylinder body, the upper end in gap is with
End seal is closed, and has water inlet interface and backwater interface, water inlet interface and backwater interface difference respectively in the top and bottom of cooling jacket
It is connected with cooling water pipe, valve is installed in cooling water pipe.
Above-mentioned LF stoves furnace cover lifting hydraulic cylinder cooling device, the water inlet interface and backwater interface position of the cooling jacket with
The hydraulic fluid port of hydraulic cylinder staggers 180 degree.
Above-mentioned LF stoves furnace cover lifting hydraulic cylinder cooling device, the cooling water pipe is by cooling water supervisor and cooling water branch pipe group
Into cooling water supervisor includes cooling water supervisor's water inlet pipe and cooling water supervisor's outlet pipe, cooling water supervisor's water inlet pipe and cooling water
Supervisor's outlet pipe is connected with bell cooling water water inlet manifold and bell cooling water outfall sewer respectively, and cooling water branch pipe includes cold
But one end difference of water branch pipe water inlet pipe and cooling water branch pipe outlet pipe, cooling water branch pipe water inlet pipe and cooling water branch pipe outlet pipe
Water inlet pipe is responsible for cooling water and cooling water supervisor's outlet pipe is connected, cooling water branch pipe water inlet pipe and cooling water branch pipe outlet pipe
The other end be connected respectively with the water inlet interface and water outlet mouthpiece of the cooling jacket of multiple hydraulic cylinders.
Above-mentioned LF stoves furnace cover lifting hydraulic cylinder cooling device, cooling water supervisor's water inlet pipe and cooling water supervisor's outlet pipe
It is upper that stainless steel high-pressure ball valve, the cooling of cooling water branch pipe water inlet pipe and cooling water branch pipe outlet pipe and multiple hydraulic cylinders are installed respectively
It is connected respectively by metal armouring flexible pipe between the water inlet interface and water outlet mouthpiece of water jacket.
Above-mentioned LF stoves furnace cover lifting hydraulic cylinder cooling device, cooling water branch pipe water inlet pipe and cooling water the branch pipe outlet pipe
It is respectively welded with the connection end of metal armouring flexible pipe to silk, the water inlet interface and water outlet mouthpiece of the cooling jacket of multiple hydraulic cylinders
It is separately installed with and silk, the both ends of metal armouring flexible pipe is connected with above-mentioned to silk respectively, the end-fitting of metal armouring flexible pipe
Locate as convex arc surface, the connecting end surface to silk that metal armouring flexible pipe is connected is concaved circular cambered surface, metal armouring hose end
Convex arc surface and the circular arc degree of the concaved circular cambered surface to silk connecting end surface match.
The beneficial effects of the utility model are：
The utility model is mounted with cooling jacket in the periphery of hydraulic cylinder, and cooling jacket can carry out cooling drop to hydraulic cylinder
Temperature, hydraulic cylinder service life will not be extended because of high temperature failure by ensureing the seal of hydraulic cylinder.
The utility model is simple in construction, easy for installation, cooling effect is notable.After the utility model, hydraulic cylinder is put down
Equal service life extended to 2 years from three months, significantly reduced the repair and maintenance cost of bell hydraulic cylinder device, reduced
Maintenance load, has prevented, because of the generation for the production accident that hydraulic cylinder failure causes bell deflection to scrape broken Electrode, to have reached steady
The purpose produce calmly, increased economic efficiency.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 be connect water interface and metal armouring flexible pipe to silk structural representation.
Marked in figure as follows：It is cooling water supervisor water inlet pipe 1, cooling water supervisor outlet pipe 2, cooling water branch pipe water inlet pipe 3, cold
But water branch pipe outlet pipe 4, valve 5, metal armouring flexible pipe 6, to silk 7, oil cylinder suspension bracket 8, hydraulic cylinder 9, cooling jacket 10.
Embodiment
The utility model is responsible for water inlet pipe 1 by cooling jacket 10, cooling water, cooling water is responsible for outlet pipe 2, cooling water branch pipe
Water inlet pipe 3, cooling water branch pipe outlet pipe 4, valve 5, metal armouring flexible pipe 6, silk 7 is formed.
Shown in figure, hydraulic cylinder 9 is arranged on oil cylinder suspension bracket 8, in the cylinder body external welding cooling jacket 10 of hydraulic cylinder 9, cooling
Water jacket 10 is looped around the periphery of hydraulic cylinder 9, and cooling jacket 10 and the cylinder body of hydraulic cylinder 9 are concentric, length and the hydraulic cylinder 9 of cooling jacket 10
Length match, have 5-10mm gap between the inwall of cooling jacket 10 and the outer wall of cylinder block of hydraulic cylinder 9, the upper end in gap and under
End seal is closed, and blocks full weld, must not leak.And respectively open entering for four points of internal thread close to upper and lower position in the side of cooling jacket 10
Water interface and backwater interface, water inlet interface and backwater interface are connected with cooling water pipe respectively.When oil cylinder assembles, notice that water inlet connects
Mouthful and the hydraulic fluid port of backwater interface position and hydraulic cylinder stagger 180 degree, be so unlikely to cooling water pipe and mutual shadow during oil pipe installation
Ring.
Shown in figure, cooling water pipe is made up of cooling water supervisor and cooling water branch pipe.
Cooling water supervisor includes cooling water supervisor's water inlet pipe 1 and cooling water supervisor's outlet pipe 2, cooling water supervisor's water inlet pipe 1
It is connected respectively with bell cooling water water inlet manifold and bell cooling water outfall sewer with cooling water supervisor's outlet pipe 2.This practicality
DN25 water pipes are respectively adopted in cooling water supervisor's water inlet pipe 1 and cooling water supervisor's outlet pipe 2 of new one embodiment.
Cooling water branch pipe includes cooling water branch pipe water inlet pipe 3 and cooling water branch pipe outlet pipe 4, cooling water branch pipe water inlet pipe 3
Water inlet pipe 1 is responsible for cooling water respectively with one end of cooling water branch pipe outlet pipe 4 and cooling water supervisor's outlet pipe 2 is connected, it is cold
But the other end of water branch pipe water inlet pipe 3 and cooling water branch pipe outlet pipe 4 water inlet with the cooling jacket 10 of multiple hydraulic cylinders 9 respectively
Interface is connected with water outlet mouthpiece.The cooling water branch pipe water inlet pipe 3 and cooling water branch pipe of one embodiment of the present utility model go out
DN15 water pipes are respectively adopted in water pipe 4.
Shown in figure, valve 5 is installed respectively on cooling water supervisor's water inlet pipe 1 and cooling water supervisor's outlet pipe 2.It is cold to prevent
But the pipeline leak of water pipe is blown out, and valve 5 must assure that reliable closing, and one embodiment of the present utility model uses hydraulic system
Conventional YJZQ-J25W stainless steel high-pressure ball valves, this valve are non-maintaining in low pressure water system.
Shown in figure, cooling water branch pipe water inlet pipe 3 and cooling water branch pipe outlet pipe 4 and the cooling jacket of multiple hydraulic cylinders 9
Be connected respectively by metal armouring flexible pipe 6 between 10 water inlet interface and water outlet mouthpiece, attachment structure be respectively adopted to silk 7 with
The both ends of metal armouring flexible pipe 6 are connected.One embodiment of the present utility model is using four points to silk 7.
First, welded in the end of cooling water branch pipe water inlet pipe 3 and cooling water branch pipe outlet pipe 4 to silk 7, metal armouring is soft
Pipe 6 is the flexible pipe commonly used in hydraulic pressure high temperature conduit, non-maintaining in low pressure water system.Because hot environment, metal armouring flexible pipe 6
Joint can not use the soft seals such as O-ring, therefore convex arc surface is made in the joint of metal armouring flexible pipe 6, is attached thereto
Concaved circular cambered surface is processed into silk 7, both purely mechanic face sealings, can ensure completely to seal in this low-pressure system of cooling water.
Secondly, the water inlet interface and water outlet mouthpiece of cooling jacket 10, the other end of metal armouring flexible pipe 6 will be screwed into silk 7
With the water inlet interface of cooling jacket 10 and being connected to silk 7 for water outlet mouthpiece, it is convex to be equally that the joint of metal armouring flexible pipe 6 is made
Type arc surface, what is be attached thereto is processed into concaved circular cambered surface to silk 7, is then connected and sealed.
The course of work of the present utility model is as follows：
Water from bell cooling water water inlet manifold is responsible for the YJZQ-J25W stainless steel high pressures of water inlet pipe 1 through supercooled water
Ball valve enters cooling water branch pipe water inlet pipe 3, and three cooling water branch pipe water inlet pipes 3 enter three by metal armouring flexible pipe 6 respectively
The cooling jacket 10 of hydraulic cylinder 9, is cooled down to hydraulic cylinder 9.The backwater of cooling water enters via another metal armouring flexible pipe 6
Cooling water branch pipe outlet pipe 4, enter back into cooling water supervisor's outlet pipe 2 and flow back to bell cooling water return main.Using such cold
But device can be such that the seal of hydraulic cylinder 9 is substantially positioned under normal temperature environment, greatly extend the service life of hydraulic cylinder 9.
Claims (5)
- A kind of 1. LF stoves furnace cover lifting hydraulic cylinder cooling device, it is characterised in that：It includes cooling jacket（10）, cooling water pipe, Valve（5）, cooling jacket（10）It is looped around hydraulic cylinder（9）Periphery, cooling jacket（10）With hydraulic cylinder（9）Cylinder body is concentric, cooling Water jacket（10）Length and hydraulic cylinder（9）Length match, around hydraulic cylinder（9）The cooling jacket of cylinder body（10）Inwall and liquid Cylinder pressure（9）There are 5-10mm gap, the top and bottom closing in gap, in cooling jacket between outer wall of cylinder block（10）Upper end and There are water inlet interface and backwater interface in lower end respectively, and water inlet interface and backwater interface are connected with cooling water pipe respectively, cooling water pipe In valve is installed（5）.
- 2. LF stoves furnace cover lifting hydraulic cylinder cooling device according to claim 1, it is characterised in that：The cooling jacket （10）Water inlet interface and backwater interface position and hydraulic cylinder（9）Hydraulic fluid port stagger 180 degree.
- 3. LF stoves furnace cover lifting hydraulic cylinder cooling device according to claim 2, it is characterised in that：The cooling water pipe by Cooling water is responsible for and cooling water branch pipe composition, and cooling water supervisor includes cooling water supervisor's water inlet pipe（1）Water outlet is responsible for cooling water Pipe（2）, cooling water supervisor's water inlet pipe（1）Outlet pipe is responsible for cooling water（2）Respectively with bell cooling water water inlet manifold and bell Cooling water outfall sewer is connected, and cooling water branch pipe includes cooling water branch pipe water inlet pipe（3）With cooling water branch pipe outlet pipe（4）, Cooling water branch pipe water inlet pipe（3）With cooling water branch pipe outlet pipe（4）One end respectively with cooling water be responsible for water inlet pipe（1）And cooling Water is responsible for outlet pipe（2）It is connected, cooling water branch pipe water inlet pipe（3）With cooling water branch pipe outlet pipe（4）The other end respectively with Multiple hydraulic cylinders（9）Cooling jacket（10）Water inlet interface be connected with water outlet mouthpiece.
- 4. LF stoves furnace cover lifting hydraulic cylinder cooling device according to claim 3, it is characterised in that：The cooling water supervisor Water inlet pipe（1）Outlet pipe is responsible for cooling water（2）It is upper that stainless steel high-pressure ball valve, cooling water branch pipe water inlet pipe are installed respectively（3）With Cooling water branch pipe outlet pipe（4）With multiple hydraulic cylinders（9）Cooling jacket（10）Water inlet interface and water outlet mouthpiece between respectively By metal armouring flexible pipe（6）It is connected.
- 5. LF stoves furnace cover lifting hydraulic cylinder cooling device according to claim 4, it is characterised in that：The cooling water branch pipe Water inlet pipe（3）With cooling water branch pipe outlet pipe（4）With metal armouring flexible pipe（6）Connection end be respectively welded to silk（7）, it is multiple Hydraulic cylinder（9）Cooling jacket（10）Water inlet interface and water outlet mouthpiece be separately installed with to silk（7）, metal armouring flexible pipe（6） Both ends respectively with above-mentioned to silk（7）It is connected, metal armouring flexible pipe（6）End-fitting at be convex arc surface, metal armouring Flexible pipe（6）Be connected to silk（7）Connecting end surface be concaved circular cambered surface, metal armouring flexible pipe（6）The convex arc surface of end with it is right Silk（7）The circular arc degree of the concaved circular cambered surface of connecting end surface matches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720661491.3U CN206802008U (en) | 2017-06-08 | 2017-06-08 | A kind of LF stoves furnace cover lifting hydraulic cylinder cooling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720661491.3U CN206802008U (en) | 2017-06-08 | 2017-06-08 | A kind of LF stoves furnace cover lifting hydraulic cylinder cooling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206802008U true CN206802008U (en) | 2017-12-26 |
Family
ID=60745585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720661491.3U Expired - Fee Related CN206802008U (en) | 2017-06-08 | 2017-06-08 | A kind of LF stoves furnace cover lifting hydraulic cylinder cooling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206802008U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113063296A (en) * | 2021-04-22 | 2021-07-02 | 山东钢铁集团日照有限公司 | Double-station LF refining furnace water-cooled furnace cover water quantity control system and control method |
-
2017
- 2017-06-08 CN CN201720661491.3U patent/CN206802008U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113063296A (en) * | 2021-04-22 | 2021-07-02 | 山东钢铁集团日照有限公司 | Double-station LF refining furnace water-cooled furnace cover water quantity control system and control method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104948872A (en) | Expansion joint provided with elastic sealing structure and used for thermal insulation pipeline | |
| CN206802008U (en) | A kind of LF stoves furnace cover lifting hydraulic cylinder cooling device | |
| CN203820812U (en) | Device for repairing copper cooling stave of blast furnace | |
| CN209587399U (en) | It is a kind of based on BIM and be applied to colleges and universities' capital construction in fire protection pipeline | |
| CN205347468U (en) | Blast furnace stave prosthetic devices | |
| CN207324172U (en) | A kind of anti-vacuum structure of water-closing-barrel | |
| CN206706138U (en) | A kind of blast furnace air inlet device of vanadium titanium smelting | |
| CN212102905U (en) | Tuyere large sleeve with conical surface sealing structure for blast furnace | |
| CN210346361U (en) | Cooling water pipe for bottom ring of submerged arc furnace | |
| CN203585378U (en) | Self-cleaning gate valve for coal chemical industry | |
| CN207659307U (en) | Glass furnace pool wall cooling device and glass melter | |
| CN206054983U (en) | Self-cooled high temperature high voltage resistant flexible pipe | |
| CN218026179U (en) | Air port sleeve pressing and flow monitoring device | |
| CN219954370U (en) | Long-life micro-water energy-saving hot air valve body | |
| CN214582545U (en) | Expansion joint for water tank of circular cooler | |
| CN213409772U (en) | Water-cooling smoke hood of scour prevention heat preservation smoke hood | |
| CN207939785U (en) | A kind of mineral hot furnace copper pressure rings | |
| CN201392093Y (en) | Tunnel furnace coil type cooling hearth | |
| CN205956074U (en) | High temperature high pressure heat supply network circulation pump mechanical seal protection system | |
| CN220472376U (en) | Heat exchanger convenient to change return bend | |
| CN208619894U (en) | Connection structure for plastic lining composite steel pipe | |
| CN204042880U (en) | A kind of slag discharge pipe of fluidized bed boiler | |
| CN202849475U (en) | Installing structure for water inlet pipe of furnace cap and furnace mouth | |
| CN218347955U (en) | High-temperature-resistant bidirectional metal sealing butterfly valve | |
| CN215574952U (en) | Online hydraulic tandem type target plate device of steam blowpipe |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171226 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |