CN87213468U - Cooling-controlling unit for hot-rolled plate - Google Patents
Cooling-controlling unit for hot-rolled plate Download PDFInfo
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- CN87213468U CN87213468U CN 87213468 CN87213468U CN87213468U CN 87213468 U CN87213468 U CN 87213468U CN 87213468 CN87213468 CN 87213468 CN 87213468 U CN87213468 U CN 87213468U CN 87213468 U CN87213468 U CN 87213468U
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- cooling
- hydraulic pressure
- water
- nozzle
- cuts down
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Abstract
The utility model relates to a cooling control device of the hot rolled steel plate for the metal cooling, belonging to the metal rolling field. The utility model adopts a novel nozzle and makes the cooling water spray in the form of the rotating cone for improving the cooling type of the hot rolled plate. The utility model has the advantages of high capability, long service life, and the utility model can improve the integrated mechanical properties of the hot rolled plate. A hydraulic valve can automatically control the cooling water via a low temperature probe and a novel second-bit three-way electromagnetic pilot-operated type hydraulic valve. Thus the consumption of the cooling water can be saved for improving the environment pollution.
Description
The utility model belongs to metal rolled field, is used for the metal cooling.
The utility model is the cooling controller about hot rolled steel plate.Steel plate is after hot rolling.Must align operation to guarantee the flatness of steel plate.Temperature during the steel plate aligning has very big influence to quality, the especially mechanical performance of steel plate.Present domestic most of steel rolling mill generally all adopts the cascade mode of perennial draingage to cool off.The consumption of water is very big, and at a large amount of cooling water of steel rolling gap waste, and cooling effect is undesirable.Inhomogeneous cooling is even.The type of cooling of general water curtain type, be to be drilled with aperture respectively, directly cooling water be sprayed on the steel plate, the flowing water waste water yield about 80% open in usual at the collector pipe place, the water column of simultaneously this aperture ejection contacts inhomogeneous with steel plate, therefore cause the surface of steel plate inhomogeneous cooling even; Cooling capacity is low in addition, speed is slow, thereby causes every technical performance of steel plate to descend, and the steel plate comprehensive mechanical performance is bad, causes the qualification rate of product to descend.
The Japan clear 60-184635 of special permission Room publication provides a kind of hot plate cooling device, and this device construction is simple, but also adopts the type of cooling of perennial draingage, and the consumption of water is also bigger.And the clear 57-121702 of Japanese publication adopts the water tank cooling means of catchmenting to carry out the cooling of hot-finished material.But the cooling means of this water curtain type also makes the steel plate inhomogeneous cooling even, and is seriously polluted to surrounding environment; Simultaneously this cooling means can using water wisely when the production space, but can not economize on water in the rolling rhythm gap.
For this reason, the utility model is designed a kind of cooling controller.Automatically control cooling water by cryogenic probe and the electromagnetic pilot-operated hydraulic valve of two-position three way.Thereby save the consumption of cooling water, improve environmental pollution simultaneously, and prolong the service life of roller-way.In addition, the utility model is equipped with newly-designed cooling water nozzle, has improved the type of cooling of hot rolled plate, and cooling capacity is improved.Improve every comprehensive mechanical performances such as yield limit σ S, tensile strength sigma B of hot rolled plate, improved the qualification rate of product.
Above-mentioned cooling controller is to adopt cryogenic probe and two-position three way formula hydraulic pressure to cut down the automatic control that realizes whole cooling device; Perhaps, work asynchronously the control power supply of rollgang and the control valve of cooling water---the power supply of two-position three way Pilotoperated reducing valve is together in parallel.Roller-way entry into service when hot rolled plate enters cooling device, pilot valve sends work order simultaneously.Hydraulic pressure cuts down and opens or closes, and corresponding, nozzle opens or closes water spray, thereby realizes the cooling of hot rolled plate.
In addition, cooling device of the present utility model is owing to adopt new cooling water nozzle.Can spray the cooling water of big flow uniformly automatically, make steel plate evenly reach cooling fast, reach the temperature that hot rolled plate is aligned in control.
The operation principle of cooling controller of the present utility model is: when hot rolled plate arrives cooled region, by the cryogenic probe effect.Automatically open pilot-operated type hydraulic pressure and cut down, both direction is simultaneously to the hot rolled plate water spray up and down from hot rolled plate, and newly-designed nozzle has guaranteed the uniformity of spraying water.When hot rolled plate left cooled region, cryogenic probe sent instruction.The action of pilot-operated type electromagnetic valve.Hydraulic pressure is cut down close, cooling water stops ejection.
Below in conjunction with accompanying drawing the utility model is described in further detail:
Fig. 1 is a cooling controller schematic diagram of the present utility model;
Fig. 2 is the top view of Fig. 1;
Fig. 3 is Fig. 2 AA cutaway view, is single group collector pipe and nozzle layout drawing up and down;
Fig. 4 is the enlarged drawing at Figure 1B place;
Fig. 5 is that pilot-operated type hydraulic pressure cuts down structure and fundamental diagram;
Fig. 6 is the water spray scatter chart of newly-designed nozzle;
Fig. 7 is the water-cooled intensity;
Fig. 8 is the half-sectional view of the overall construction drawing of nozzle;
Fig. 9 is the guiding drainage core front view of nozzle;
Figure 10 is the guiding drainage core top view of nozzle;
Figure 11 is a hardness scatter chart behind the former water curtain type boring water pipe cooling metal sheets;
Figure 12 is a hardness scatter chart after the existing water cooling plant water-cooled;
Figure 13 is that electric machines for roller and guide cut down parallel line figure;
Figure 14, Figure 17 are the cryogenic probe schematic diagrams;
Figure 15 is two cryogenic probe working line figure;
Figure 16 is that hydraulic pressure cuts down profile.
Cooling controller of the present utility model manually cuts down 9 by one, a two-position three way electromagnetic pilot cuts down 17, hydraulic pressure cuts down 8, the guide cuts down 17 and cuts down 8 with hydraulic pressure and form the pilot-operated type hydraulic pressure and cut down last collector pipe 6,16, following collector pipe 10,13, backplate 3,14, nozzle 7,5, two cryogenic probes of steel column 11,12 are formed.
Below in conjunction with accompanying drawing, each building block with the utility model cooling controller is described earlier:
Fig. 2 is the top view of cooling controller, and by finding out among the figure that collector pipe is in a symmetrical arrangement up and down, nozzle becomes two, three arranged crosswise.
Fig. 3 is single group collector pipe and nozzle layout drawing up and down, cuts down the cooling water that attracts by pilot-operated type hydraulic pressure and enters collector pipe 6,16 respectively, and following collector pipe 10,13 enters nozzle 7 ejections then.The nozzle both sides are welded with backplate 3,14, to avoid breaking nozzle in transmission hot rolled plate process.
Adopted newly-designed nozzle 7 in the utility model, this nozzle is by nozzle body 21, and guiding drainage core 22 and hold-doun nut 23 are formed.Guiding drainage core 22 is used for guiding being provided when spraying cooling water and revolving the effect of penetrating.On the guiding drainage core perisporium three uniform square spiral grooves 24 are arranged.Groove width is preferably 6mm, helical angle is preferably 50 °, in the centre of guiding drainage core 22 aperture 25 is arranged, and hole diameter is preferably 4～5mm, in the inner chamber exit of nozzle body 21 R is arranged
1, R
2Two sections smooth connection arcs.
Cooling water flows into three helicla flutes 24 on guiding drainage core middle part aperture 25 and the perisporium, because the helicla flute effect forces cooling water to become the ejection of rotation shape.Rotation water garden Zhou Zhongxin water shortage for the compensation ejection, thereby in the middle part of guiding drainage core, open an aperture 25, right cylinder current by aperture 25 outflows, being rotated current drives, current curl ejection with the helicla flute ejection, thereby guaranteed the even of the whole sprinkling water surface water yield, guaranteed the cooling quality of steel plate.
Two, three arranged crosswise of the vertical one-tenth of nozzle, the garden cone-apex angle of nozzle can become 60 ° of ejections, forms a cone.
Fig. 4 is the partial enlarged drawing at Figure 1B place, and nozzle 7 and backplate 3,14 can be formed with channel-section steel 4 and DG60 water pipe, and the water pipe of also available other material or different-diameter constitutes.
Whole nozzle is screwed on the screwed pipe that is welded on the collector pipe, and tightens with fastening nut.
Another vitals is that newly-designed pilot-operated type hydraulic pressure cuts down in the utility model, and it cuts down 17 and hydraulic pressure by a two-position three way electromagnetic pilot and cuts down 8 two parts and form, and the guide cuts down 17 control hydraulic pressure and cuts down 8 actions.
Hydraulic pressure cuts down 8 and cuts down core 29, spring 30, cuts down 31 and cut down cover 32 and form by cutting down body 26, nut 27, conducting lid 28, nylon.
As shown in figure 16.Cut down 31 closing motion in order to control automatically, the aperture size (promptly cutting down the cover internal diameter) of cutting down 31 33 places, top is greater than the aperture size of cutting down 31 37 places, bottom (promptly cut down the inlet opening that body 26 is connected with water inlet pipe A and locate diameter), produce the top and bottom product moment, cause that cutting down 31 moves up and down cutting down the cover internal diameter thereby produce pressure differential.In order to adapt to closing and opening of low-pressure large-diameter pipe stream, cutting down 31 weight should be lighter, the utility model will cut down and be designed to a combiner for this reason, cut down 31 tops hollow out in concavity inlay a nylon and cut down core 29 with weight reduction, it is active in one's movements, life-span is long, and there is a garden groove at the middle part of cutting down core 29 at nylon, lay spring 30, the other end of spring 30 withstands on garden, the middle part groove of conducting lid 28, conducting lid 28 has an inlet opening 34, and cut down body 26 also has same aperture in the corresponding position aperture, cut down 17 E pipe by this hole and guide and be connected, cutting down the body bottom has two apopores 35,36, one link to each other with outlet pipe F pipe, another links to each other with outlet pipe B pipe, cuts down to overlap 32 and be provided with four uniform holes in this position.Form an annular distance liquid stream.The assurance water outlet is even.Like this, water can cut down interior discharge from hydraulic pressure by these four holes, tightens with a nut 27 on the conducting lid 28.
The course of work that pilot-operated type hydraulic pressure cuts down is as follows:
Cut down the bottom when cutting down 31 places when cooling water enters control by water inlet pipe A pipe, this moment is if electromagnetic pilot cuts down 17 and closes, then cut down 33 places, 31 tops anhydrous, be in depressurization phase.At this moment Di Bu hydraulic pressure is greater than the pressure of spring 30 with cut down weight own.Cut down 31 and move up under the effect of bottom water flow pressure, apopore 35,36 is connected with the inlet opening, cooling water enters B, F pipe from water inlet pipe A by apopore, finishes and opens the action of supplying water.
If electromagnetic pilot cuts down 17 and opens, then cooling water cuts down 17 from the A pipe by electromagnetic pilot and enters the inlet opening 34 of conducting lid 28 by the E pipe, enters and cuts down 31 33 places, top.Because this aperture, place is greater than the aperture at 32 places, bottom, therefore, cut down 31 top hydraulic pressure greater than cutting down bottom hydraulic pressure, like this, under the effect of hydraulic pressure and spring 30, cut down 31 and move down, apopore 35,36 is closed, cut-out A pipe flows to the current of F pipe, B pipe, and whole pilot-operated type hydraulic pressure cuts down closes, and has finished closing motion.
Wherein, A pipe with manually cut down 9 be connected, outlet pipe F is connected with following collector pipe 10, be connected with following collector pipe 13 again and manage 10; Outlet pipe B is connected with last collector pipe 6, and pipe 6 is connected with last collector pipe 16 again.Above-mentioned connection all can adopt flange to connect, but can adopt welding between the collector pipe.
Figure 14, Figure 17 are the cryogenic probe fundamental diagrams.
Figure 15 is two cryogenic probe working line figure.
As shown in the figure, 11,12 is cryogenic probe, utilizes the steel plate radiations heat energy.The irradiation thermistor, then change in resistance causes that output signal changes.Its concrete course of work is: when steel plate arrives the water-cooled district, cryogenic probe 11 detects signal and changes relay J
1.Normally open contact Ja closure, intermediate relay ZJ get electric, its normally open contact ZJ
1Self-locking, ZJ
2Connect electromagnetic valve 17, the water flowing cooling.When steel plate water outlet cold-zone, cryogenic probe 12 detects signal and changes relay J
2Must be electric, normally closed interlock Jb opens, and disconnects the ZJ line loop, the intermediate relay ZJ dead electricity, ZJ removes self-locking, ZJ
2Disconnect, promptly disconnect the electromagnetic valve loop, the stop supplies cooling water.
The course of work of cooling controller of the present utility model is as described below:
When the hot rolled plate 1 after rolling enters the cooling controller end, cryogenic probe 11 thermal radiation effects, sending instruction leads for two-position three way electromagnetism electricity to cut down 17, make its action, cut down 17 this moment and be closed condition, thereby hydraulic pressure cuts down the anhydrous depressurization phase that is in 8 tops, back down hydraulic pressure and cut down core 31 by manually cutting down 9 cooling waters that enter pipeline A, hydraulic pressure is cut down automatically to be opened, cooling water enters collector pipe 6 up and down, 16,10,13, nozzle 7 begins water spray with cooling hot-rolled plate 1, hot rolled plate 1 is when coming out in the cooling controller, and cryogenic probe 12 detects the hot rolled plate variations in temperature, send instruction and cut down 17, thereby make its action be in open mode to electromagnetic pilot, at this moment controlling water enters hydraulic pressure and cuts down 8 top, force hydraulic pressure to cut down core 31 and move down, close cooling water, at this moment nozzle 7 stops water spray.
Cooling controller of the present utility model is compared with conventional art and is had the following advantages:
1. this cooling controller can be controlled cooling water inflow automatically, when hot rolled plate enters this device, automatically opens water spray, when hot rolled plate leaves this device then autoshutdown, stop water spray, thereby save the consumption of cooling water. Calculate according to rolling rhythm, stop the water supply in rolling gap, can save 80% injection flow rate, per hour can economize on water 200～300 tons.
2. the utility model can be sprayed on the hot rolled plate cooling water owing to adopted newly-designed nozzle equably, and Fig. 6 is that this nozzle of employing is sprayed at cooling water the distribution situation on the steel plate equably, near the distribution curve of the desirable water yield. Thereby improved every combination properties such as yield limit σ S, the tensile strength sigma B of steel plate and percentage elongation σ S, improved the qualification rate of product.
Adopt two kinds of method coolings to compare test result to 10 batches of 16Mn steel plates and show that adopt traditional type of cooling of water curtain type, the yield limit σ S average of steel plate is that 35.2MPa, mechanical tensile strength sigma B average are 57MPa, percentage elongation σ S average is 28.1. And adopt newly-designed nozzle to cool off, σ S average is that 39.7MPa, σ B average are 59.7MPa, σ S average is 24.65, thereby make the yield limit average improve 12.8%, the tensile strength average has improved 4.7%, σ S average has descended 3.55%, has improved the mechanical performance of steel plate, has improved qualification rate.
Figure 11 is that the hardness scatter chart of the cooling metal sheets that obtains is surveyed in traditional water curtain type water spray cooling, the hardness distribution is extremely inhomogeneous as can be seen from Figure, and the middle hardness value is on the low side.
Figure 12 is the hardness scatter chart of steel plate after the newly-designed cooling device water-cooled of employing, and hardness distributes and is tending towards even as can be seen from Figure.
3. this cooling controller can use the cooling water of range hydraulic pressure as 0.15MPa～4MPa, and is not tight to water quality requirement, can use not treated river, provides cost savings.Its investment is less, effective, instant effect, and also equipment need not change originally, was well suited for middle-size and small-size factories and miness and used.
4. can form a cooling system easily with above-mentioned cooling controller, quantity can be calculated according to product thickness, chilling temperature, arranges one or several cooling controller, to satisfy manufacturing technique requirent.
5. Fig. 7 adopts σ of the present utility model=10 molten steel cold strength curves, and the conveying transmission speed of roller-way is 1.86 meter per seconds, and maximum water-cooled intensity is 15 ℃/second., can align the levelling roller-way change water-cooled intensity if transmitting steel plate speed.
6. to cut down 8 be to produce custom-designed for steel rolling to the hydraulic pressure in the utility model.Be fit to environment is poor, operating frequency is high production occasion, and be fit to the cooling water of mesolow, especially be fit to 0.15MPa～0.25MPa low pressure and the per minute operating frequency is used at the working environment more than 40 times.This cuts down the main core segment that cuts down and is combined by stainless steel and two kinds of unlike materials of nylon, adopt the low-pressure state work of lower curtate inflow, both sides water flowing out structure, suitable fully common water quality, by this being cut down nearly 2000 workaday uses in 700 days, stable working does not have and damages, moves correctly.
Claims (7)
1, a kind of cooling controller of forming by collector pipe, it is characterized in that being equipped with in the said cooling device control hydraulic pressure and cut down the cryogenic probe that opens or closes, two-position three way electromagnetic pilot cuts down the pilot-operated type hydraulic pressure that cuts down formation with a hydraulic pressure and cuts down, and makes cooling water become the nozzle of rotating cone shape ejection.
2, cooling controller as claimed in claim 1 is characterized in that the hydraulic pressure of said pilot-operated type hydraulic pressure in cutting down cuts down by cutting down body, nut, conducting lid, nylon to cut down core, spring, cut down and cut down cover and form.Nylon cuts down core and is contained in the middle recess that cuts down top, and conducting has covered an inlet opening.
3, cooling controller as claimed in claim 2, what it is characterized in that said hydraulic pressure cuts down cuts down the aperture size of top aperture size greater than the bottom of cutting down.
4, cooling controller as claimed in claim 1 is characterized in that said nozzle is made up of nozzle body, nut and guiding drainage core, on the circumferential wall of guiding drainage core three uniform square spiral grooves is arranged, and there is an aperture centre of guiding drainage core.
5, cooling controller as claimed in claim 4 is characterized in that said square spiral well width is 6mm, and helical angle is 50 °.
6, cooling controller as claimed in claim 4, the aperture that it is characterized in that said aperture is 4～5mm.
7,, it is characterized in that said nozzle both sides are welded with backplate as claim 1,2,3,4,5 or 6 described cooling controllers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87213468 CN87213468U (en) | 1987-09-19 | 1987-09-19 | Cooling-controlling unit for hot-rolled plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87213468 CN87213468U (en) | 1987-09-19 | 1987-09-19 | Cooling-controlling unit for hot-rolled plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN87213468U true CN87213468U (en) | 1988-07-20 |
Family
ID=4827961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87213468 Withdrawn CN87213468U (en) | 1987-09-19 | 1987-09-19 | Cooling-controlling unit for hot-rolled plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN87213468U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100396394C (en) * | 2006-03-10 | 2008-06-25 | 叶林 | Opening high-efficient water-cooling nozzle |
| CN110496863A (en) * | 2018-05-17 | 2019-11-26 | 宝山钢铁股份有限公司 | A kind of rolled piece conveyor roller cooling control system and its method |
-
1987
- 1987-09-19 CN CN 87213468 patent/CN87213468U/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100396394C (en) * | 2006-03-10 | 2008-06-25 | 叶林 | Opening high-efficient water-cooling nozzle |
| CN110496863A (en) * | 2018-05-17 | 2019-11-26 | 宝山钢铁股份有限公司 | A kind of rolled piece conveyor roller cooling control system and its method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Designer after: Zhu Xinglong Designer after: Wang Haichang Designer before: Zhu Xinglong |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: DESIGNER; FROM: ZHU XINGLONG TO: ZHU XINGLONG; WANG HAIZHANG |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |