CN214516741U - Rotary type cooling bed heat preservation cover system - Google Patents
Rotary type cooling bed heat preservation cover system Download PDFInfo
- Publication number
- CN214516741U CN214516741U CN202120417074.0U CN202120417074U CN214516741U CN 214516741 U CN214516741 U CN 214516741U CN 202120417074 U CN202120417074 U CN 202120417074U CN 214516741 U CN214516741 U CN 214516741U
- Authority
- CN
- China
- Prior art keywords
- heat
- bed
- cold bed
- cover system
- cooling bed
- 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
Images
Landscapes
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
Abstract
The utility model provides a rotary type cold bed cover system that keeps warm, cold bed (1) are the cold bed for the rod, wholly are the rectangle, rotary type cold bed cover system that keeps warm includes: a plurality of heat preservation units at the both sides symmetrical arrangement of cold bed width direction, every heat preservation unit includes: the bottom end of the upright post (5) is supported on the base material; the top end of the upright post (5) is higher than the cooling bed; the rotating shaft (7) is arranged at the top end of the upright post (5); the heat-insulating cover (6) is of a plate-shaped structure, and the first end of the heat-insulating cover (6) can be rotatably connected with the rotating shaft (7); the first end of the steel wire rope (4) is connected with the second end of the heat-insulation cover (6); and the motor (2) is connected with the second end of the steel wire rope (4). The utility model discloses enable the rod heat preservation.
Description
Technical Field
The utility model relates to a steel production makes the field, concretely relates to rotary type cold bed heat preservation cover system.
Background
According to GB/T1499.2-2018, part 2 of steel for reinforced concrete: hot rolled ribbed bar, steel for reinforced concrete of GB/T1499.1-2017 part 1: hot rolling plain steel bar, the surface of the produced steel bar can form a layer of oxidation film at high temperature during production, and the effect of slowing down the corrosion of the steel bar is achieved. The conventional straight hot-rolled ribbed steel bar production process has the advantages that the fixed-length shearing mode is mechanical shearing, two end surface metal matrixes of the sheared straight steel bar are directly exposed in the air, and once the straight steel bar is in contact with water in the storage and transportation links, the straight steel bar is corroded at once, the appearance of the straight steel bar is influenced, and the selling and the using are influenced.
In summary, the following problems exist in the prior art: after the bar is sheared, the end can be rusted, and the use is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model provides a rotary type cold bed cover system that keeps warm to guarantee that the rod keeps warm before reaching the scale and cutting, thereby make the rod after cuting, produce the oxide film.
For this, the utility model provides a rotary type cold bed cover system that keeps warm, cold bed 1 are for rod (straight stick or twisted steel) with the cold bed, are not the cold bed of altitude, and cold bed 1 is whole for the rectangle, rotary type cold bed cover system that keeps warm includes: a plurality of heat preservation units at the both sides symmetrical arrangement of cold bed width direction, every heat preservation unit includes:
the bottom end of the upright post 5 is supported on the base material; the top end of the upright post 5 is higher than the cooling bed;
the rotating shaft 7 is arranged at the top end of the upright post 5;
the heat preservation cover 6 is of a plate-shaped structure, and a first end of the heat preservation cover 6 is rotatably connected with the rotating shaft 7;
the first end of the steel wire rope 4 is connected with the second end of the heat-preservation cover 6;
and the motor 2 is connected with the second end of the steel wire rope 4.
Further, each heat preservation unit further comprises: and the fixed pulley 3 is arranged in a plant where the cooling bed is arranged, and the motor 2 is connected with the second end of the steel wire rope 4 through the fixed pulley 3.
Further, the top end of the upright post 5 is 1-2 m higher than the plane of the cooling bed.
Further, the length of the cooling bed 1 is 120m, the width is 12m, the length of each heat-preserving cover 6 is 6m, 10 heat-preserving covers 6 are respectively arranged on each side of the cooling bed in the width direction, and the two sides of each heat-preserving cover 6 are 20.
Further, the heat preservation cover 6 comprises two parts, and the one side is the lower surface towards the cold bed, is the upper surface dorsad to the cold bed one side, and the upper surface is the structural layer, and the upper surface includes: the edge part frame, a middle X-shaped reinforcing rib arranged in the edge part frame and a plane plate arranged on the middle X-shaped reinforcing rib; the lower surface is a refractory cellucotton heat-insulating layer and is fixed below the upper surface through a steel belt.
Further, the thickness of the refractory cellucotton heat-insulating layer is 10 cm.
Furthermore, in each heat preservation unit, the motor, the fixed pulley and the steel wire rope are located on the same side of the center line of the cooling bed, and the motor, the fixed pulley and the steel wire rope are located on the outer side of the heat preservation cover.
Further, the height of the fixed pulley is higher than that of the upright post.
By adopting the measures, the steel bar can be ensured to be clean at the shearing opening of the fixed-length shear and be in a high-temperature environment, and the iron matrix of the shearing opening is combined with oxygen to form a layer of Fe3O4The oxide film protects the ends of the steel bars, and the thickness of the oxide film is thicker than that of the air cooling. The thickness of the oxide film layer is 1-3 mu m, and the surface Fe is subjected to energy spectrum analysis3O4The mass percentage of the O content of the oxide film is 2-15%. The end of the steel bar which is not blued has no Fe3O4And (3) an oxide film, wherein the content of O on the surface of the end of the steel bar is 0% by mass when the spectrum analysis is used.
Drawings
Fig. 1 is a schematic view of a rotary type cold bed heat preservation cover system adopted by the rotary type cold bed heat preservation cover system of the present invention in a top view direction; wherein, part of the motor and the steel wire rope are removed;
fig. 2 is a schematic view of the main viewing direction of the rotary type cooling bed heat preservation cover system adopted by the rotary type cooling bed heat preservation cover system of the present invention.
The reference numbers illustrate: 1. cooling the bed; 2. a motor; 3. a fixed pulley; 4. a wire rope; 5. a column; 6. a heat-preserving cover; 7. a rotating shaft; 15. the center line of the cooling bed; 20. and a heat preservation unit.
Detailed Description
In order to clearly understand the technical features, objects, and effects of the present invention, the present invention will now be described.
The utility model discloses a theory of operation is: the applicant found that: fe can be accelerated in high temperature environment3O4And forming an oxide film, namely forming a blue end face on the end face. Therefore, the applicant believes that the Fe can be accelerated by simulating a high-temperature environment3O4Formation of oxide film, e.g. in shear, by ensuring higher temperature, suitable Fe is formed3O4And (5) oxidizing the film.
Firstly, temperature guarantee: an 18-frame hot continuous rolling unit is adopted, and the method is as follows according to GB/T1499.2-2018 part 2 of steel for reinforced concrete: hot-rolled ribbed bar "no slitting process was used to produce phi 25mm specification HRB400E hot-rolled ribbed bar. The production time is winter, and the outside temperature is 5 ℃.
The cooling bed is additionally provided with a heat preservation cover: a rotary cooling bed heat-insulating cover is used in the cooling bed, the angle of the heat-insulating device is adjusted to be parallel to the cooling bed, and the coverage rate of the cooling bed is 100%.
The shear mouth of the fixed-length shearing equipment has no oil drip, and the end has no oil stain when the reinforcing steel bar is sheared.
The structure of the heat preservation cover:
the heat preservation device is rotary type cold bed heat preservation cover system, as shown in fig. 1 and fig. 2, rotary type cold bed heat preservation cover system includes: a plurality of heat-insulating units 20 symmetrically arranged on both sides in the width direction of the cooling bed 1, each heat-insulating unit 20 comprising:
the bottom end of the upright post 5 is supported on a base material of a factory building; the top end of the upright post 5 is higher than the cooling bed 1; for example, the top end of the upright post 5 is 1-2 m higher than the plane of the cooling bed; so as to realize proper heat preservation effect;
the rotating shaft 7 is arranged at the top end of the upright post 5;
the heat preservation cover 6 is of a plate-shaped structure, and a first end of the heat preservation cover 6 is rotatably connected with the rotating shaft 7;
the first end of the steel wire rope 4 is connected with the second end of the heat-preservation cover 6;
the motor 2 is connected with the second end of the steel wire rope 4, and the steel wire rope 4 is hoisted by the motor 2 to lift the top end of the heat-insulating cover 6, so that the heat-insulating cover 6 rotates upwards.
Further, each heat preservation unit further comprises: and the fixed pulley 3 is arranged in a plant where the cooling bed is arranged, and the motor 2 is connected with the second end of the steel wire rope 4 through the fixed pulley 3, namely the top end of the steel wire rope 4 in the figure 2. In each heat-insulating unit 20, for example, in the heat-insulating unit 20 on the left side in fig. 2, the motor 2, the fixed pulley 3, and the wire rope 4 are located on the same side of the center line 15 of the cooling bed, the motor 2, the fixed pulley 3, and the wire rope 4 are located on the outer side of the heat-insulating cover 6, the height of the fixed pulley 3 is higher than that of the upright post 5, and the fixed pulley 3 is located above the top end of the upright post 5. The motor 2 hoists the steel wire rope 4 to realize that the top end of the heat preservation cover 6 rises, when the top end of the heat preservation cover 6 descends, the motor 2 loosens the tension or the hoisting of the steel wire rope 4, the heat preservation cover 6 is suspended at the top end at the moment, and under the action of gravity, the steel wire rope can automatically descend due to the fact that the steel wire rope 4 is not tensioned, so that the complete action of ascending and descending is realized. Because the gravity action is adopted to realize automatic descending, the device for arranging the motor or realizing automatic descending is reduced, the space occupation and the economic cost are reduced, the structure is simple, the cost is low, and the effect is good.
For example, the cooling bed 1 of the 18-stand hot continuous rolling line has a rectangular shape as a whole, a length of 120m and a width of 12m, and 10 heat-insulating covers 6 are arranged on each side of the cooling bed in the width direction, and 20 heat-insulating covers are arranged on the two sides.
The heat preservation cover 6 is arranged at two ends of the rectangular cooling bed in the width direction symmetrically, a single heat preservation cover is a rectangle with the length of 12m and the width of 6m, the bottom of the heat preservation cover is positioned at two sides of the cooling bed in the width direction, the bottom of the heat preservation cover is a rotating shaft 7, and the bottom of the heat preservation cover is higher than the plane of the cooling bed by 1.5m so as to realize a better heat preservation effect and take cooling into account. The adjusting angles of the rotating shaft 7 and the heat-insulating cover 6 are 0-90 degrees, and the rotating shaft and the heat-insulating cover can be parallel to the cooling bed, so that complete coverage is realized. And the heat preservation cover can be in a state vertical to the cooling bed when the cooling bed is overhauled, so that the overhaul is convenient.
The heat preservation cover 6 is composed of two parts, one surface facing the cooling bed is a lower surface, the other surface back to the cooling bed is an upper surface, the upper surface is a structural layer and is composed of an edge frame, a middle X-shaped reinforcing rib and a plane plate, and the material is a common Q235 steel plate; the lower surface is the cotton heat preservation of refractory fibre, and thickness 10cm is fixed at the upper surface through the steel band, and the lower surface can play the heat preservation effect and can avoid high temperature to toast and lead to the ectonexine to warp again, has also alleviateed the weight that keeps warm the cover simultaneously.
When the outside is winter and the temperature is 5 ℃, the angle of the heat-insulating cover 6 is adjusted to be parallel to the cooling bed, the left heat-insulating cover 6 covers half of the cooling bed on the left side, and the right heat-insulating cover 6 covers half of the cooling bed on the right side, so that the coverage rate of the two symmetrical heat-insulating covers 6 on the cooling bed is 100%, and the temperature drop of the steel bars on the cooling bed is reduced. When the ambient temperature is high, e.g. in summerThe angle of the heat-insulating cover is adjusted to be 30 degrees, 45 degrees or 60 degrees with the horizontal direction, for example, so that the heat-insulating cover partially covers the cooling bed. The surface temperature of the steel bar at the fixed length shearing position is 290-330 ℃, the shearing opening is clean after the steel bar is sheared, and an iron matrix of the shearing opening is combined with oxygen in the air to form a layer of blue Fe with the thickness of 2.2 mu m3O4The oxidation film protects the ends of the steel bars.
The utility model discloses can be applied to straight ribbed steel bars such as phi 10 ~ 50mm specification HRB400, HRB400E, HRB500E, HRB600, HRBF400E, HRBF500E and straight round steel bars such as phi 14 ~ 22mm specification.
The above description is only exemplary of the present invention, and is not intended to limit the scope of the present invention. For the utility model discloses a each component can make up each other under the condition of conflict not, and any technical personnel in the field do not deviate from the utility model discloses an equal change and the modification made under the prerequisite of the design and principle all should belong to the scope of protection of the utility model.
Claims (8)
1. The utility model provides a rotary type cold bed cover system that keeps warm, its characterized in that, cold bed (1) are the cold bed for the rod, wholly are rectangle, rotary type cold bed cover system that keeps warm includes: a plurality of heat preservation units at the both sides symmetrical arrangement of cold bed width direction, every heat preservation unit includes:
the bottom end of the upright post (5) is supported on the base material; the top end of the upright post (5) is higher than the cooling bed;
the rotating shaft (7) is arranged at the top end of the upright post (5);
the heat-insulating cover (6) is of a plate-shaped structure, and the first end of the heat-insulating cover (6) can be rotatably connected with the rotating shaft (7);
the first end of the steel wire rope (4) is connected with the second end of the heat-insulation cover (6);
and the motor (2) is connected with the second end of the steel wire rope (4).
2. A rotary cold bed thermal cover system according to claim 1, wherein each thermal unit further comprises: and the fixed pulley (3) is arranged in a workshop where the cooling bed is located, and the motor (2) is connected with the second end of the steel wire rope (4) through the fixed pulley (3).
3. A rotary hotbed insulation cover system according to claim 1, characterised in that the top of the vertical column (5) is 1-2 m above the hotbed plane.
4. A rotary cooling bed heat-insulating cover system according to claim 1, characterized in that the cooling bed (1) is 120m long and 12m wide, each of said heat-insulating covers (6) is 6m long, and 10 heat-insulating covers (6) are respectively arranged on each side in the width direction of the cooling bed, and 20 heat-insulating covers (6) are arranged on both sides.
5. A rotary cooling bed insulation cover system according to claim 1, wherein the insulation cover (6) is formed by two parts, one side facing the cooling bed is a lower surface, the other side facing away from the cooling bed is an upper surface, the upper surface is a structural layer, and the upper surface comprises: the edge part frame, a middle X-shaped reinforcing rib arranged in the edge part frame and a plane plate arranged on the middle X-shaped reinforcing rib; the lower surface is a refractory cellucotton heat-insulating layer and is fixed below the upper surface through a steel belt.
6. A rotary cold bed insulation cover system according to claim 1, wherein the refractory cellucotton insulation layer is 10cm thick.
7. A rotary cold bed thermal cover system according to claim 1, wherein in each thermal unit, the motor and the fixed pulley, and the wire rope are located on the same side of the centerline of the cold bed, and the motor and the fixed pulley, and the wire rope are located on the outside of the thermal cover.
8. A rotary cold bed thermal cover system according to claim 1, wherein the height of the crown block is greater than the height of the column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120417074.0U CN214516741U (en) | 2021-02-24 | 2021-02-24 | Rotary type cooling bed heat preservation cover system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120417074.0U CN214516741U (en) | 2021-02-24 | 2021-02-24 | Rotary type cooling bed heat preservation cover system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214516741U true CN214516741U (en) | 2021-10-29 |
Family
ID=78236111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120417074.0U Active CN214516741U (en) | 2021-02-24 | 2021-02-24 | Rotary type cooling bed heat preservation cover system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214516741U (en) |
-
2021
- 2021-02-24 CN CN202120417074.0U patent/CN214516741U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20160130108A1 (en) | Device and method for winding and unwinding a parallel wire strand horizontally | |
| CN214516741U (en) | Rotary type cooling bed heat preservation cover system | |
| CN201850793U (en) | 1000kV GIS (gas insulated switchgear) room with corrugated steel arch roof structure | |
| CN214866121U (en) | Telescopic cold bed heat preservation cover system | |
| CN210559032U (en) | Material hoisting device for building safety | |
| CN215992714U (en) | Automatic kang feeding device for tobacco leaf baking | |
| CN210103368U (en) | Lifting device for mechanical production | |
| CN104139453A (en) | Steam pipe reinforced concrete combined bottom mould for prefabricated concrete | |
| CN113046679B (en) | Method for generating oxide film on rod end | |
| CN209065331U (en) | A kind of lifting device of heating furnace space for collecting ashes in a stove iron sheet | |
| CN109138465B (en) | Concrete is thermal-insulation shed for construction in winter | |
| CN212317136U (en) | Novel built on stilts building base | |
| CN2782638Y (en) | Overhead crane for stacking | |
| CN112777481A (en) | Bidirectional sliding device for prefabricated stand and construction method thereof | |
| CN208408497U (en) | A kind of casting machine rectangular bloom | |
| CN207348787U (en) | One kind maintenance cat ladder platform | |
| CN108048904B (en) | Bismuth crystal manufacturing equipment | |
| CN106363795B (en) | A kind of structure and preparation method thereof of row's ardealite deslagging field | |
| CN208532861U (en) | A kind of ESR ingot heat preservation slow cooling cover | |
| CN215882020U (en) | Maintenance production line is used in processing of concrete prefabricated component | |
| CN203091701U (en) | Device used for bending prevention of continuously cast blank | |
| CN218349250U (en) | High-temperature retaining wall for circular cooler | |
| CN212532028U (en) | Bridge crane with safety protection function | |
| JP5245423B2 (en) | Sprinkling cooling system for slab slabs | |
| CN217709258U (en) | Lifting device for glass chemical tempering furnace |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |