CN204892573U - Mill coil simply descale spray gun - Google Patents
Mill coil simply descale spray gun Download PDFInfo
- Publication number
- CN204892573U CN204892573U CN201520610555.8U CN201520610555U CN204892573U CN 204892573 U CN204892573 U CN 204892573U CN 201520610555 U CN201520610555 U CN 201520610555U CN 204892573 U CN204892573 U CN 204892573U
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- nozzle
- spray gun
- descale
- pressure air
- pressurepipe
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Abstract
The utility model provides a mill coil simply descale spray gun, belongs to the rolling technical field of metal for solve the current problem that the cost was descaled to equipment of descaling, its technical scheme is, the spray gun be should descale and nozzle, high -pressurepipe and condenser tube were included, the nozzle is connected to high -pressurepipe's one end, the high pressurized air source of other end connection, condenser tube's one end and water source are connected, water inlet on another termination high -pressurepipe lateral wall. The utility model discloses put nozzle, high -pressurepipe and condenser tube together according to the jet pump principle, utilize the high -speed air that flows to sweep away the cooling water and evenly spray it on the raw belt surface, realize descaling equipment with the tradition and comparing the descaling of raw belt, the device simple structure, low cost, occupation space is little, installation and easy maintenance, greatly reduced the mill coil descale the cost.
Description
Technical field
The utility model relates to a kind of de-scaling spray gun of mill coil, is specially adapted to the middle finish rolling de-scaling of mill coil, belongs to the rolling technical field of metal.
Background technology
In order to improve the surface quality of mill coil, the mill coil production line of high-quality all will remove the secondary iron scale on made-up belt surface in middle finishing stands, and some documents are referred to as secondary descaling steel.
At present, it is adopt high-pressure water descaling that hot rolling line removes the main method of iron scale, the method utilize special pressurized equipment to be added to by hydraulic pressure that 8 ~ 12Mpa(has is even higher), then utilize special nozzle, to made-up belt upper and lower surface inject high pressure current simultaneously, reach de-scaling object.Its shortcoming needs to lay special supply channel, purchase pressurized equipment and De-scaling box etc., and equipment investment is large, takes up room many, and equipment is installed inconvenient, and not easy care, considerably increases de-scaling cost.
Some producers adopt low pressure water flow to carry out de-scaling, the method is in roughing mills or intermediate mill upstream, adopt the pressure jet of 3 ~ 30 bar (about 0.3 ~ 3MPa), upper and lower surface facing to made-up belt sprays high-velocity flow simultaneously, make made-up belt surface temperature be reduced to 600 DEG C, secondary iron scale shrinkage cracking is also washed away removal by the high-velocity flow of post-injection.This method needs are special equally supply channel, De-scaling box, even also need water pressurized equipment, de-scaling cost is also larger.
Utility model content
The purpose of this utility model is the drawback for prior art, provides a kind of simple and easy de-scaling spray gun of mill coil, to reduce the de-scaling cost of mill coil.
Problem described in the utility model realizes with following technical proposals:
A kind of simple and easy de-scaling spray gun of mill coil, formation comprises nozzle, high-pressure air pipe and cooling water pipe, and one end of described high-pressure air pipe connects nozzle, and the other end connects high-pressure air source, one end of described cooling water pipe is connected with water source, the water inlet on another termination high-pressure air pipe sidewall.
The simple and easy de-scaling spray gun of above-mentioned mill coil, described nozzle is the flat burner with long and narrow spout, and two flat horizontal surfaces of its spout are provided with width of jet adjustment screw.
The simple and easy de-scaling spray gun of above-mentioned mill coil, the angle between described cooling water pipe and high-pressure air pipe is 20 ° ~ 60 °.
Nozzle, high-pressure air pipe and cooling water pipe are combined according to jet pump principle by the utility model, utilize swiftly flowing air to sweep away cooling water and it is evenly sprayed at made-up belt surface, realize the de-scaling to made-up belt, compare with traditional scale removal equipment, this apparatus structure is simple, with low cost, takes up room little, I&M is convenient, greatly reduces the de-scaling cost of mill coil.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Fig. 1 is structural representation of the present utility model,
Fig. 2 is the left view of Fig. 1.
In figure, mark is as follows: 1, nozzle; 2, cooling water pipe; 3, high-pressure air pipe; 4, width of jet adjustment screw.
Detailed description of the invention
Referring to Fig. 1 and Fig. 2, the utility model comprises nozzle 1, cooling water pipe 2, high-pressure air pipe 3 and width of jet adjustment screw 4, nozzle 1 is arranged on the front end of high-pressure air pipe 3, the rear end of high-pressure air pipe 3 connects high-pressure air source, cooling water pipe 2 one end is connected with water source, the water inlet on another termination high-pressure air pipe 3 sidewall.
Operation principle of the present utility model: compressed air is in high-pressure air pipe 3 during flow at high speed, and form vacuum at cooling water pipe 2 and the junction of high-pressure air pipe 3 because ambient air is swept away by jet, namely the cooling water in cooling water pipe 2 is inhaled into.Two fluids mixes and carries out momentum-exchange in high-pressure air pipe 3, the kinetic energy of cooling water is increased, finally by nozzle 1, most of kinetic energy is converted to pressure energy.
The spout size of nozzle 1 can adjust screw 4 by width of jet and regulate, and also can rule of thumb make fixing specification, its width of jet is between 0.5 millimeter ~ 3 millimeters.Cooling water pipe 2 and high-pressure air pipe 3 tubing of DN15 ~ DN25 make.Angle (α in Fig. 1) between cooling water pipe 2 and high-pressure air pipe 3 is 20 ° ~ 60 °.Spray gun total length 200 millimeters ~ 400 millimeters, width 150 millimeters ~ 300 millimeters.
After the utility model is arranged on vertical miller, before flat roll mill, nozzle is towards vertical miller direction, facing to made-up belt upper surface winding-up air-water mixture.
The utility model for power, with the milling train cooling water of 0.01 ~ 0.2MPa for medium, by the hitting power of air-water mixture, effectively removes the iron scale of made-up belt upper surface with the compressed air of 0.3 ~ 0.7MPa.
Nozzle 1 of the present utility model needs independent processing, after machining and cooling water pipe 2 and high-pressure air pipe 3 weld together.Then with pneumatic hose, source of the gas is connected with high-pressure air pipe 3, with common sebific duct, water source is connected with cooling water pipe 2, opens gas source valve, regulate water source valve gradually, regulate spout size by width of jet adjustment screw 4, reach satisfied strike effect.
Claims (3)
1. the simple and easy de-scaling spray gun of a mill coil, it is characterized in that, it comprises nozzle (1), high-pressure air pipe (3) and cooling water pipe (2), one end of described high-pressure air pipe (3) connects nozzle (1), the other end connects high-pressure air source, one end of described cooling water pipe (2) is connected with water source, the water inlet on another termination high-pressure air pipe (3) sidewall.
2. the simple and easy de-scaling spray gun of a kind of mill coil according to claim 1, is characterized in that, described nozzle (1), for having the flat burner of long and narrow spout, two flat horizontal surfaces of its spout is provided with width of jet adjustment screw (4).
3. the simple and easy de-scaling spray gun of a kind of mill coil according to claim 1 and 2, is characterized in that, the angle between described cooling water pipe (2) and high-pressure air pipe (3) is 20 ° ~ 60 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520610555.8U CN204892573U (en) | 2015-08-14 | 2015-08-14 | Mill coil simply descale spray gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520610555.8U CN204892573U (en) | 2015-08-14 | 2015-08-14 | Mill coil simply descale spray gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204892573U true CN204892573U (en) | 2015-12-23 |
Family
ID=54914787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520610555.8U Expired - Fee Related CN204892573U (en) | 2015-08-14 | 2015-08-14 | Mill coil simply descale spray gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204892573U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105170667A (en) * | 2015-08-05 | 2015-12-23 | 河北钢铁股份有限公司 | Scale removal method for hot-rolled narrow strips |
| CN108393363A (en) * | 2017-02-05 | 2018-08-14 | 鞍钢股份有限公司 | Hot-rolled plate blank high-pressure aerial fog descaling device and method |
-
2015
- 2015-08-14 CN CN201520610555.8U patent/CN204892573U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105170667A (en) * | 2015-08-05 | 2015-12-23 | 河北钢铁股份有限公司 | Scale removal method for hot-rolled narrow strips |
| CN108393363A (en) * | 2017-02-05 | 2018-08-14 | 鞍钢股份有限公司 | Hot-rolled plate blank high-pressure aerial fog descaling device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151223 Termination date: 20190814 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |