CN110586669B - Multi-line cutting rolling control cooling device for bar - Google Patents
Multi-line cutting rolling control cooling device for bar Download PDFInfo
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- CN110586669B CN110586669B CN201910827493.9A CN201910827493A CN110586669B CN 110586669 B CN110586669 B CN 110586669B CN 201910827493 A CN201910827493 A CN 201910827493A CN 110586669 B CN110586669 B CN 110586669B
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- water inlet
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- 238000001816 cooling Methods 0.000 title claims abstract description 210
- 238000005096 rolling process Methods 0.000 title claims abstract description 27
- 238000005520 cutting process Methods 0.000 title claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 224
- 230000007704 transition Effects 0.000 claims abstract description 51
- 238000004519 manufacturing process Methods 0.000 claims abstract description 41
- 238000011010 flushing procedure Methods 0.000 claims abstract 2
- 230000000903 blocking effect Effects 0.000 claims description 9
- 238000003825 pressing Methods 0.000 claims description 4
- 238000005507 spraying Methods 0.000 claims description 4
- 230000001154 acute effect Effects 0.000 claims description 3
- 230000003247 decreasing effect Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 26
- 229910000831 Steel Inorganic materials 0.000 abstract description 22
- 239000010959 steel Substances 0.000 abstract description 22
- 238000000034 method Methods 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 7
- 230000002829 reductive effect Effects 0.000 abstract description 7
- 238000009826 distribution Methods 0.000 abstract description 4
- 230000001681 protective effect Effects 0.000 description 22
- 238000007664 blowing Methods 0.000 description 15
- 230000000149 penetrating effect Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 230000000670 limiting effect Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 238000007789 sealing Methods 0.000 description 4
- 239000000498 cooling water Substances 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000009960 carding Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000036961 partial effect Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 230000003993 interaction Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
- B21B45/0203—Cooling
- B21B45/0209—Cooling devices, e.g. using gaseous coolants
- B21B45/0215—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes
- B21B45/0224—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes for wire, rods, rounds, bars
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
- B21B45/0203—Cooling
- B21B45/0209—Cooling devices, e.g. using gaseous coolants
- B21B45/0215—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes
- B21B45/0233—Spray nozzles, Nozzle headers; Spray systems
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
Abstract
The invention relates to a bar multi-line splitting rolling control cooling device, which comprises a plurality of single-line cooling devices arranged in parallel, wherein the single-line cooling devices are arranged on the same fixed water beam, so that the centering precision of a bar running center line is obviously improved, the steel stacking risk of bars is reduced, each single-line cooling device comprises a transition guide groove, a cooling structure and a collecting guide groove which are sequentially arranged along the bar production direction, and the cooling structure comprises a water cooling unit, a water back-flushing unit and a blank-passing unit; the cooling nozzle and the hollow pipe can be rapidly positioned and installed by the structural arrangement of the water cooling unit and the hollow pipe, the first assembly seat of the cooling nozzle and the second assembly seat of the hollow pipe are set to be of the same structure, and different distributions of the cooling nozzle and the hollow pipe on the fixed water beam can be realized by adopting the same installation mode, so that the production process and the production error can be rapidly adjusted, for example, the cooling process is continuously cooled to an intermittent cooling process, the temperature difference between wires and the like.
Description
Technical Field
The invention relates to the field of bar production, in particular to a bar multi-line splitting rolling control cooling device.
Background
In the multi-line cutting rolling production of bars, a control cooling device is needed, and the control cooling device is generally arranged between a K1 finishing mill group and a flying shear and mainly comprises a transition guide groove, a water penetrating and cooling device and a collecting guide groove which are sequentially arranged along the production direction of the bars. During actual production, bars rolled by the K1 finishing mill group are transited to a water passing-through cooling device by a transition guide groove for water passing, and the bars are gathered to flying shears by a collecting guide groove after cooling.
Wherein, for different rolling process requirements and factory requirements, the existing water passing device is provided with two replaceable water passing devices, each water passing device is provided with 7 groups of water passing pipes along the rolling direction, all water penetrating pipes are arranged in one water penetrating tank through round pipe clamps, the water penetrating tank is arranged on 2 movable trolleys, the movable trolleys are connected together through bolts, and when the water penetrating pipe is used, one set of water penetrating pipes is driven to move to a working position through a hydraulic cylinder according to process requirements. The water passing-through device has the following defects although the water passing-through device can have a cooling effect: firstly, 2 moving trolley structures are adopted, so that the front-back centering of a water cooling device is poor, steel stacking accidents are easy to occur, and the steel rolling production process is influenced; and the circular pipe clamp is easy to loosen after frequent movement, and the water pipe penetrating pipe is easy to deviate under high-pressure water supply, so that the neutrality is affected, and the steel stacking risk is increased. Secondly, the cooling effect of the existing water cooling device is poor, when the multi-wire cooling device is used for cooling conveniently, the cooling water of the multi-wire bars is controlled by a unified switch, so that each wire is synchronously supplied with water, but in actual cooling, due to different rolling processes, for example, errors of the rolled center wire bars and the rolled side wire bars are about 5-6 ℃, temperature differences of 15-20 ℃ possibly occur between each wire due to manual installation errors of rolling heads on neutrality, and accordingly the defects of different quality, high rejection rate and the like of the produced bars can be caused. Thirdly, when the existing water-passing device cools the bar, water is seriously carried along with the bar, so that the surface of the bar is unevenly cooled, wavy bending is generated, the quality of a finished product is seriously influenced, and steel stacking accidents are easily caused. Fourth, the cooling effect is comparatively single, can't satisfy the technological requirement of carrying out the segmentation cooling according to different length.
The existing transition guide groove adopts a fixed base structure, but the centering precision is poor due to the fact that the water penetrating tank moves back and forth, and the transition guide groove belongs to a long-term steel stacking accident point.
Disclosure of Invention
The invention provides the bar multi-line cutting rolling control cooling device with high centering precision, which can prevent the bar from being watered after being cooled by the cooling device, realize the adjustment of the temperature difference between wires and realize intermittent or continuous cooling of the bar through the distribution of the air-passing unit and the water-cooling unit on the fixed water beam, and solve the problems in the prior art.
The invention adopts the technical means for solving the technical problems that:
the multi-line splitting rolling control cooling device for the bars comprises a plurality of single-line cooling devices which are arranged in parallel, the single-line cooling devices are arranged on the same fixed water beam, each single-line cooling device comprises a transition guide groove, a cooling structure and a collecting guide groove which are sequentially arranged along the production direction of the bars, and the cooling structure comprises a water cooling unit, a water-back-blowing unit and an air-passing unit;
the water cooling unit comprises a first assembly seat arranged on a fixed water beam, a cooling nozzle is arranged on the first assembly seat, a water inlet and a first clamping table are arranged on the cooling nozzle along the bar production direction, an annular convex part is connected outside the water inlet, the annular convex part is embedded and connected with a water inlet hole arranged on the first assembly seat, the first clamping table is clamped with a clamping groove arranged on the first assembly seat, a pressing part for fastening the cooling nozzle on the first assembly seat is arranged on the first assembly seat, and the water cooling units of adjacent single lines share the first assembly seat;
the hollow unit comprises a second assembly seat arranged on the fixed water beam, the second assembly seat is identical to the first assembly seat, a hollow pipe is arranged on the second assembly seat, a plugging part for plugging a water inlet hole and a second clamping table matched with the clamping groove are arranged on the hollow pipe, and the hollow units of adjacent single wires share the second assembly seat.
From the above, this application adopts transition guide slot, cooling structure and collects the guide slot and install on same fixed water roof beam, can improve each other's centering, reduces the rod and piles the steel risk, and from the water-cooling unit with empty the structure setting of passing the unit, can realize cooling nozzle and empty quick location installation of passing the pipe. The first assembly seat of the cooling nozzle and the second assembly seat of the hollow pipe are arranged to be of the same structure, and different distributions of the cooling nozzle and the hollow pipe on the fixed water beam can be realized by adopting the same installation mode, so that the production process and the production error can be adjusted more quickly, for example, the process from continuous cooling to intermittent cooling, the temperature difference between wires and the like.
When the cooling structure is formed by at least 1 water cooling unit, at least 1 anti-water-blowing unit, at least 1 air-passing unit, at least 1 water cooling unit and at least 1 minimum unit formed by 1 anti-water-blowing unit, and the cooling structure of adjacent single lines is the same, intermittent production of bars can be realized, when the bars are produced, the bars are primarily cooled through the water cooling unit, then are warmed through the air-passing unit, and are cooled again through the water cooling unit, wherein the anti-water-blowing unit is used for preventing the bars cooled by the water cooling unit from carrying water backwards, the occurrence of uneven cooling phenomenon can be avoided, the phenomenon that the bars are bent due to waves and the like caused by uneven cooling is further reduced, and finally the steel piling risk is reduced. The number of the water cooling units is related to the bar process, and the lower the temperature of the cooling bed in the later stage of the bar is, the more the number of the water cooling units is along the bar production direction.
When the cooling structure is composed of at least 1 minimum unit formed by at least 1 water cooling unit, at least 1 anti-water-blowing unit and at least 1 air-passing unit, and the cooling structures of adjacent single wires are the same, continuous cooling production of the bars can be realized, wherein the water cooling unit is used for water cooling of the bars, the anti-water-blowing unit is used for preventing the bars from running backwards to carry water, and the air-passing unit is used for guiding the bars to the collecting guide groove.
When the cooling structure is formed by at least 1 minimum unit formed by at least 1 empty passing unit, at least 1 water cooling unit and at least 1 anti-water-blowing unit, and the cooling structures of adjacent single lines are the same, continuous cooling production of bars can be realized, wherein the water cooling unit is used for water cooling of bar passing, the anti-water-blowing unit is used for preventing the bars from running backwards to carry water, the empty passing unit is used for guiding the bars from the transition guide groove to the water cooling unit, and the water of the water cooling unit can be prevented from being reversely sprayed to a temperature measuring device at the tail end of the transition guide groove to a certain extent, so that the use of the temperature measuring device is influenced.
When the empty pipe is arranged between the adjacent cooling nozzles of one single line, and the cooling nozzles are arranged on the other single lines which are parallel to the empty pipe, the adjustment of larger temperature difference between the lines can be realized, for example, when the bar is produced by a certain production process, when the cooling temperature of one single line cooling device is lower than the cooling temperature of the other single lines by 15-20 ℃, the machine is stopped, one cooling nozzle of the line is replaced by the empty pipe rapidly, and the temperature difference adjustment range of the single empty pipe is about 15-20 ℃, so that the temperature difference between the lines can be compensated, the uniform temperature production of each line is realized, and the quality of the finished product is ensured.
Preferably, a plurality of protective covers are buckled on the fixed water beam provided with the cooling structure, the cooling structure is arranged between the fixed water beam and the protective covers, the protective covers can play a protective role in steel piling, and can prevent the waste water after cooling and using of the cooling nozzle from splashing, so that the utilization rate of cooling water is improved. Specifically, in order to facilitate the hoisting of the protective cover, a plurality of hoisting rings are arranged at the top of the protective cover; for accurate positioning of the protective cover and the fixed water beam, the fixed water beam is provided with a buckling convex part, and the protective cover is provided with a buckling cap which is matched with and embedded in the buckling convex part.
In order to increase the tightness of the joint of the water inlet hole, sealing rings are respectively arranged between the water inlet hole and the annular convex part and between the water inlet hole and the plugging part. For the empty pipe, the plugging effect is better, and the stability of the water inlet pressure difference of other lines is prevented from being influenced; for the cooling nozzle, the water supply effect is better, the waste is avoided, and the stability of the pressure difference of water inlet is ensured. Specifically, the plugging part comprises a positioning block sleeved and fixed with the hollow pipe, and a plugging clamping table is fixedly connected to the bottom of the positioning block.
Preferably, in order to reduce the installation units, two adjacent water-cooling units along the running direction of the bar can also share the first assembly seat, and two adjacent air-cooling units along the running direction of the bar can also share the second assembly seat.
Preferably, the cooling nozzle comprises an inlet conduit A, a box body A, an outlet conduit A and an outlet guide sleeve which are sequentially connected along the bar production direction, a cooling channel is formed among the inlet conduit A, the outlet conduit A and the outlet guide sleeve, a water cavity A communicated with the cooling channel is formed in the box body A, the tail end of the inlet conduit A and the starting end of the outlet conduit A extend into the water cavity A and form a water inlet seam A forming an acute angle with the bar production direction, the water inlet and the annular convex part are arranged at the bottom of the box body, the first clamping table is arranged on the outlet guide sleeve, the water inlet seam A is communicated with the cooling channel and the water inlet, and a plurality of gaskets are arranged between the inlet conduit A and the box body A and used for adjusting the size of the water inlet seam A by increasing or decreasing the gaskets. Compared with the traditional thread adjusting mode, the device can ensure the consistency of the water inflow of different cooling nozzles or quantitatively realize the water inflow adjustment of different cooling nozzles.
During rolling, the rolling edge line is contacted with air, so that the temperature of a bar on the edge line is slightly lower than that of a bar on the central line, and the temperature difference is 5-6 ℃, therefore, when the bar is cooled, the water inflow of the central line is required to be increased, and at the moment, the water inflow is increased by increasing the number of gaskets of a plurality of cooling nozzles on the central line, so that the temperature difference of each line is adjusted, and the quality of a finished product is ensured. The washer adjustment is accomplished by this point when the cooling nozzle is installed because of the line differential temperature that exists in the split rolling process itself.
The outlet guide sleeve can be of a structure in order to strengthen the connection strength of the outlet guide sleeve and the outlet guide pipe A, and specifically comprises a guide sleeve body, wherein a fixing plate is integrally connected to the outer peripheral side of the initial end of the guide sleeve body, and the fixing plate is fixedly connected with the outlet guide pipe A. And the initial end of the guide sleeve body penetrates through the fixing plate to form an embedded convex part, and the embedded convex part is connected with a caulking groove formed in the outlet guide pipe in a matched mode.
The initial end of the cooling channel of the outlet guide sleeve, the initial end of the cooling channel of the outlet guide pipe A and the initial end of the cooling channel of the inlet guide pipe A are annular horn mouths for reducing steel stacking accidents of bars; sealing rings are respectively arranged between the outlet conduit A and the box body A, between the inlet conduit A and the box body A and between the annular convex part and the water inlet hole for the tightness of the connection of the parts.
Preferably, the anti-water-spraying unit comprises a third assembly seat arranged on the fixed water beam, a plurality of opposite nozzles and guide pipes are arranged on the third assembly seat in a centering manner along the bar production direction, the opposite nozzles are used for preventing the bar from running backwards to carry water, the anti-water-spraying units of adjacent single lines share the third assembly seat, and the opposite nozzles comprise an inlet guide pipe B, a box body B and an outlet guide pipe B which are fixedly connected in sequence along the bar running direction; the inlet guide pipe B and the outlet guide pipe B are respectively provided with a water blocking channel, the opposite end parts of the inlet guide pipe B and the outlet guide pipe B are in shaft hole clearance fit to form a water inlet joint B communicated with the water blocking channels, and the water inlet direction of the water inlet joint B is arranged at an obtuse angle with the bar running direction; the box body B, the inlet conduit B and the outlet conduit B jointly enclose a water cavity B communicated with the water inlet joint B, a water inlet B communicated with the water cavity B is arranged on the box body B, and the water inlet B is communicated with a water inlet hole arranged on the third assembly seat. The size of the water inlet seam B is adjusted in the same way as the water inlet seam A of the cooling nozzle.
The difference between the third assembly seat and the first assembly seat is that the number of the water inlet holes and the number of the compacting parts are different.
Preferably, a plurality of water inlet pipes are arranged on the side part of the fixed water beam, a plurality of water inlet channels connected with the water inlet pipes are arranged on the top of the fixed water beam, and the water inlet channels are communicated with water inlet holes on the first assembly base, the second assembly base and the third assembly base so as to supply water.
Preferably, the transition guide groove comprises a transition plate and a cover plate, the top of the transition plate is provided with a first guide groove along the running direction of the bar, and the first guide grooves of adjacent single wires share the transition plate; the cover plate is arranged on the transition plate at the top of the first guide groove, the cover plates of adjacent single wires are shared and form a transition channel with the first guide groove for bar operation, the operation tail end of the cover plate is fixedly connected with the transition plate, and the operation initial end of the cover plate is movably covered with the transition plate; wherein, in order to restrict the angle of opening and shutting of apron, the end of apron is equipped with spacing portion, is equipped with on the transition board with spacing portion complex butt portion, spacing portion with butt portion laminating is in order to restrict the angle of opening and shutting of apron, so set up, can prevent that the apron from transiting the upset striking other equipment. When the opening and closing angle of the cover plate is between 90 degrees and 180 degrees, the carding bar is not influenced by the cover plate when steel rolling accidents happen conveniently. For ease of handling, a handle may also be provided on top of the cover plate. For convenient hoisting, a lifting hook can be arranged on the transition plate; in order to fix the transition plate, a fixing plate is fixedly connected to the bottom of the transition plate, and the fixing plate is connected with a fixed water beam through bolts.
The collecting guide groove comprises a collecting base, a collecting plate and a second protective cover, and the collecting base is arranged on the fixed water beam; the collecting plates are fixedly arranged on the collecting base, a second guide groove is formed in the top of each collecting plate, the second guide grooves of adjacent single wires share one collecting plate, and the second guide grooves on the plurality of single wires gather from the starting end of each second guide groove to the tail end of each second guide groove along the running direction of the bar; the second protection cover is buckled on the collecting plate at the top of the second guide groove, and the second protection covers of the adjacent single wires are shared and form a channel for bar running with the second guide groove. The second protective cover is characterized in that a handle is fixedly arranged at the top of the second protective cover for facilitating installation of the second protective cover, a second clamping groove is formed in the side portion of the second protective cover, and a limiting column matched with the second clamping groove is arranged on the collecting plate. When the second draw-in groove to rod direction of operation slope setting, can make between the two more firm with the rod operation between second protection casing and the collecting plate. In order to reduce the steel stacking probability, the initial end of the collecting channel is an annular horn mouth; for the installation of the whole collecting guide groove, a hanging ring is arranged on the collecting guide groove. In actual use, the number of the collecting guide grooves can be set according to the needs, and the number of the collecting guide grooves is generally 2 or 4 in the common case of steel rolling.
Preferably, the compressing part comprises supporting columns symmetrically fixedly connected to two sides of the assembly seat, a cross beam is fixedly connected to the tops of the two supporting columns, a plurality of adjusting bolts are connected to the cross beam in a threaded mode, and the bottoms of the adjusting bolts penetrate through the cross beam and then are abutted to the top of the cooling nozzle and the top of the hollow pipe. One end of the cross beam is hinged with one support column, the other end of the cross beam is detachably fixed with the other support column, and the movable end of the cross beam is provided with a handle, so that the replacement and installation of the empty part and the cooling nozzle are facilitated.
The bottom of first assembly seat and collection base has set firmly a plurality of installation department respectively, and every installation department tip extends first assembly seat and collection base's lateral part setting, be equipped with on the fixed water roof beam with installation department complex mounting groove, the installation department is restricted in the mounting groove through the stopper, stopper demountable installation is in the mounting groove. The lifting ring is fixedly arranged on the first assembling seat and the collecting base for convenient installation, and the lifting ring is installed after the lifting ring is lifted and squatted when the lifting ring is assembled with the fixed water beam.
In the above text, the various starting ends and the end ends mentioned are opposite, the starting end being the bar entry end and the end being the bar exit end.
The invention adopts the structure and has the advantages that:
1. by improving the structure of the control cooling device, the centering precision of the bar running center line is obviously improved, and the cooling nozzle and the hollow pipe can be rapidly positioned and installed from the structural arrangement of the water cooling unit and the hollow unit; the first assembly seat of the cooling nozzle and the second assembly seat of the hollow pipe are arranged to be of the same structure, and different distributions of the cooling nozzle and the hollow pipe on the fixed water beam can be realized by adopting the same installation mode, so that the production process and the production error can be adjusted more quickly, for example, the process from continuous cooling to intermittent cooling, the temperature difference between wires and the like.
2. The problem of carrying water after the bar cooling can be solved, the wave bending phenomenon caused by uneven bar surface cooling is avoided, thereby avoiding the steel piling accident caused thereby, and improving the quality of finished products.
3. The small-range temperature difference adjustment of each line can be realized through the adjustment of the water inlet seam of the cooling nozzle.
4. The centering precision of the transition guide groove and the collecting guide groove with the cooling structure is improved, and the steel stacking risk is reduced.
Drawings
FIG. 1 is a schematic side view of embodiment 1 of the present invention;
FIG. 2 is a schematic view of the partial top view of FIG. 1;
FIG. 3 is a left side schematic view of the first mount and cooling nozzle of FIG. 2 mounted in cooperation;
FIG. 4 is a right side schematic view of the first mount and cooling nozzle of FIG. 2 mounted in cooperation;
FIG. 5 is a schematic cross-sectional view of the cooling nozzle of FIG. 2;
FIG. 6 is a schematic view of the hollow tube of FIG. 3;
FIG. 7 is a schematic cross-sectional view of the reversing nozzle of FIG. 3;
FIG. 8 is a schematic top view of a portion of the transition channel of FIG. 1;
FIG. 9 is an enlarged schematic view of the portion A in FIG. 1;
FIG. 10 is an enlarged schematic view of the portion B of FIG. 1;
fig. 11 is a schematic top view of embodiment 2;
fig. 12 is a schematic top view of embodiment 3;
fig. 13 is a schematic top view of embodiment 4;
fig. 14 is a schematic view of a portion of the structure of fig. 13.
In the figure, 1, a fixed water beam, 2, a transition guide groove, 3, a cooling structure, 4 and a collecting guide groove;
11. the convex part 12, the water inlet pipe 13 and the water inlet channel are buckled;
21. a transition plate 211, a first guide groove 212, an abutting part 213 and a fixing plate;
22. cover plate 221, limit part 222, handle;
31. the device comprises a water cooling unit 311, a first assembly seat 3111, a water inlet hole 3112, a clamping groove 3113 and a pressing part; 312. cooling nozzle, 3121, water inlet, 3122, first clamping platform, 3123, annular convex part, 3124, inlet conduit a,3125, box body a,3126, outlet conduit a,3127, outlet guide sleeve, 3128, water cavity a,3129, water inlet seam a;
32. the back water-blowing unit 321, the third assembly seat 322, the back nozzle 3221, the inlet guide pipes B,3222, the box bodies B,3223, the outlet guide pipes B,3224, the water inlet joints B,3225, the water cavities B,3226 and the water inlet B;
33. the empty pipe comprises an empty passing unit 331, an empty passing pipe 3311, a plugging part 3312 and a second clamping table; 332. a second mount;
34. a protective cover 341 and a buckling cap;
41. the collecting base, 42, collecting plate, 421, second guide slot, 422, spacing post, 43, second protection casing, 431, second draw-in groove.
Detailed Description
In order to clearly illustrate the technical features of the present solution, the present invention will be described in detail below with reference to the following detailed description and the accompanying drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, the present application may be practiced otherwise than as described herein, and thus the scope of the present application is not limited by the specific embodiments disclosed below.
In addition, in the description of the present application, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," etc. indicate or refer to an azimuth or a positional relationship based on that shown in the drawings, and are merely for convenience of description and to simplify the description, and do not indicate or imply that the apparatus or element in question must have a specific azimuth, be configured and operated in a specific azimuth, and therefore should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In this application, unless specifically stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; the device can be mechanically connected, electrically connected and communicated; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.
In this application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
It should be noted that, in fig. 2, for the convenience of understanding the present solution, along the bar production direction, the cooling structure does not show the protection cover, and part of the fixed water beam is exposed to directly see the partial top view thereof; the second shield structure is not shown in the collection trough. In fig. 8, for the convenience of understanding the transition guide groove structure, two transition guide grooves are continuously drawn, and a cover plate structure of one transition guide groove is not shown.
Example 1:
as shown in fig. 1-10, in this embodiment, the multi-line splitting rolling control cooling device for a bar includes a plurality of single-line cooling devices arranged in parallel, and the plurality of single-line cooling devices are arranged on the same fixed water beam 1, so that the single-line pair neutrality can be improved, the steel stacking risk of the bar can be reduced, each single-line cooling device includes a transition guide groove 2, a cooling structure 3 and a collecting guide groove 4 which are sequentially arranged along the bar production direction, and the cooling structure 3 includes a water cooling unit 31, a counter-blowing unit 32 and an empty passing unit 33;
the water cooling unit 31 comprises a first assembling seat 311 arranged on the fixed water beam 1, a cooling nozzle 312 is arranged on the first assembling seat 311, a water inlet 3121 and a first clamping table 3122 are arranged on the cooling nozzle 312 along the bar production direction, an annular convex part 3123 is connected outside the water inlet 3121, the annular convex part 3123 is embedded and connected with a water inlet 3111 arranged on the first assembling seat 311, the first clamping table 3122 is clamped and connected with a clamping groove 3112 arranged on the first assembling seat 311, a pressing part 3113 for fastening the cooling nozzle 312 on the first assembling seat 311 is arranged on the first assembling seat 311, and the water cooling units 31 of adjacent single lines share the first assembling seat 311; the hollow unit 33 comprises a second assembly seat installed on the fixed water beam 1, the second assembly seat is identical to the first assembly seat, the hollow pipe 331 is installed on the second assembly seat, the hollow pipe 331 is provided with a blocking part 3311 for blocking the water inlet 3111 and a second clamping table 3312 matched with the clamping groove 3112, and the hollow units 33 of adjacent single wires share the second assembly seat. By the structural arrangement of the water cooling unit and the air passing unit, the cooling nozzle 312 and the air passing pipe 331 can be quickly positioned and installed and replaced.
The cooling structure 3 is composed of at least 1 water cooling unit, at least 1 anti-water-blowing unit, at least 1 air-passing unit, at least 1 water cooling unit and at least 1 minimum unit formed by anti-water-blowing units, and the cooling structure 3 of adjacent single lines is the same, so that intermittent production of bars can be realized, during bar production, the bars are initially cooled through the water cooling unit 31, then are warmed through the air-passing unit 33, and are cooled again through the water cooling unit 31, wherein the anti-water-blowing unit 32 is used for preventing the bars cooled by the water cooling unit 31 from carrying water backwards, the occurrence of uneven cooling phenomenon can be avoided, the phenomenon that the bars are bent due to waves and the like caused by uneven cooling is further reduced, and finally the steel piling risk is reduced. The number of the water cooling units 31 is related to the bar process, and the lower the temperature of the cooling bed in the later stage of the bar is, the more the number of the water cooling units 31 is along the bar production direction.
It can be understood that the fixed water beam 1 provided with the cooling structure 3 is provided with the plurality of protective covers 34 in a buckling manner, the cooling structure 3 is arranged between the fixed water beam 1 and the plurality of protective covers 34, the protective covers 34 can play a protective role in steel stacking, and can prevent the waste water after the cooling nozzle 312 is used for cooling from splashing, so that the utilization rate of cooling water is improved. Specifically, in order to facilitate the hoisting of the protective cover 34, a plurality of hoisting rings are arranged at the top of the protective cover 34; for accurate positioning with the fixed water beam 1, the fixed water beam 1 is provided with a buckling protrusion 11, and the protective cover 34 is provided with a buckling cap 341 which is matched and embedded with the buckling protrusion 11.
It is understood that in order to increase the sealability of the connection portion of the water inlet 3111, sealing rings are provided between the water inlet 3111 and the annular protrusion 3123, and between the water inlet 3111 and the blocking portion 3311, respectively. For the empty pipe 331, the plugging effect is better, and the stability of the water inlet pressure difference of other lines is prevented from being influenced; for the cooling nozzle 312, the water supply effect is better, waste is avoided, and the stability of the pressure difference of the inlet water is ensured. Specifically, the plugging portion 3311 includes a positioning block sleeved and fixed with the hollow tube 331, and a plugging clamping table fixedly connected to the bottom of the positioning block and fitted with the water inlet hole.
It can be appreciated that the compressing portion 3113 includes support columns symmetrically and fixedly connected to two sides of the assembly seat, a cross beam is fixedly connected to the top of the two support columns, a plurality of adjusting bolts are screwed on the cross beam, and the bottoms of the adjusting bolts penetrate through the cross beam and then are abutted to the top of the cooling nozzle 312 and the top of the hollow tube 331. One end of the cross beam is hinged with one of the support columns, the other end of the cross beam is detachably fixed with the other support column, and the movable end of the cross beam is provided with a handle, so that replacement and installation of the hollow tube 331 and the cooling nozzle 312 are facilitated.
It will be appreciated that, in order to reduce the number of installation units and facilitate the installation, two adjacent water cooling units 31 along the running direction of the bar may also share the first assembly seat 311, and two adjacent air passing units 33 along the running direction of the bar may share the second assembly seat.
It can be understood that the cooling nozzle 312 includes an inlet pipe a3124, a box body a3125, an outlet pipe a3126 and an outlet guide sleeve 3127 which are sequentially connected along the bar production direction, cooling channels are respectively formed in the inlet pipe a3124, the outlet pipe a3126 and the outlet guide sleeve 3127, a water cavity a3128 communicated with the cooling channels is formed in the box body a3125, the tail end of the inlet pipe a3124 and the beginning end of the outlet pipe a3126 extend into the water cavity a3128 and form a water inlet seam a3129 forming an acute angle with the bar production direction, the water inlet 3121 and the annular convex part 3123 are arranged at the bottom of the box body 3125, the first clamping platform 3122 is arranged on the outlet guide sleeve 3127, the water inlet seam a3129 communicates the cooling channels with the water inlet 3121, a plurality of gaskets are installed between the inlet pipe a3124 and the box body a3125, and the size of the water inlet seam a3129 is adjusted by increasing or decreasing the gaskets. Thus, compared with the traditional thread adjusting mode, the consistency of the water inflow of different cooling nozzles 312 can be ensured, or the water inflow adjustment of different cooling nozzles can be quantitatively realized.
Specifically, when rolling, the rolling edge line contacts air, so that the temperature of the bar material on the edge line is slightly lower than that of the bar material on the central line, and the error is 5-6 ℃, therefore, when the bar material is cooled, the central line water inflow is required to be increased, and at the moment, the water inflow is increased by increasing the number of gaskets of a plurality of cooling nozzles 312 on the central line due to the lower error temperature, so that the temperature difference of each line is adjusted, and the quality of a finished product is ensured. The washer adjustment is here completed when the cooling nozzle is installed, because of the errors in the rolling itself.
In order to enhance the connection strength between the outlet guide sleeve 3127 and the outlet conduit a3126, the outlet guide sleeve 3127 may be configured in a structure, specifically, the outlet guide sleeve 3127 includes a guide sleeve body, and a fixing plate is integrally connected to the outer peripheral side of the start end of the guide sleeve body, and is fixedly connected to the outlet conduit a 3126. The initial end of the guide sleeve body penetrates through the fixing plate to form an embedded convex part, and the embedded convex part is connected with a caulking groove formed in the outlet guide pipe in a matched mode; in order to reduce steel stacking accidents of bars, the initial end of the cooling channel of the outlet guide sleeve, the initial end of the cooling channel of the outlet conduit A3126 and the initial end of the cooling channel of the inlet conduit A3124 are annular horn mouths; for the tightness of the connection of the parts, sealing rings are respectively arranged between the outlet conduit A3126 and the box body A3125, between the inlet conduit A3124 and the box body A3125, and between the annular convex part 3123 and the water inlet 3111.
It can be understood that the anti-water-blowing unit 32 comprises a third assembly seat 321 installed on the fixed water beam 1, a plurality of opposite nozzles 322 and guide pipes 323 are installed on the third assembly seat 321 in a centering way along the bar production direction, the opposite nozzles 322 are used for preventing the bar from running backwards to carry water, the adjacent single-line anti-water-blowing units 32 share the third assembly seat 321, and the opposite nozzles 322 comprise an inlet guide pipe B3221, a box body B3222 and an outlet guide pipe B3223 which are fixedly connected in sequence along the bar running direction; water blocking channels are respectively arranged in the inlet conduit B3221 and the outlet conduit B3223, the opposite ends of the inlet conduit B3221 and the outlet conduit B3223 are in shaft hole clearance fit to form a water inlet joint B3224 communicated with the water blocking channels, and the water inlet direction of the water inlet joint B3224 is arranged at an obtuse angle with the bar running direction; the box body B3222, the inlet conduit B3221 and the outlet conduit B3223 jointly enclose a water cavity B3225 communicated with the water inlet joint B3224, a water inlet B3226 communicated with the water cavity B3225 is arranged on the box body B3222, and the water inlet B3226 is communicated with a water inlet hole arranged on the third assembly seat 321. The size of the water inlet seam B is adjusted in the same way as the water inlet seam A of the cooling nozzle. The difference between the third assembling seat 321 and the first assembling seat is that the number of the water inlet holes and the number of the compressing parts are different.
It can be understood that a plurality of water inlet pipes 12 are arranged on the side part of the fixed water beam 1, a plurality of water inlet channels 13 connected with the water inlet pipes are arranged on the top of the fixed water beam 1, and the water inlet channels 13 are communicated with water inlet holes on the first assembly base, the second assembly base and the third assembly base so as to realize water supply.
The transition guide groove 2 comprises a transition plate 21 and a cover plate 22, a first guide groove 211 is formed in the top of the transition plate 21 along the running direction of the bar, and the first guide grooves of adjacent single lines share one transition plate 21; the cover plate 22 is arranged on the transition plate 21 at the top of the first guide groove 211, the cover plates of adjacent single wires are shared and form a transition channel with the first guide groove 211 for bar running, the running tail end of the cover plate 22 is fixedly connected with the transition plate 21, and the running start end of the cover plate 22 is movably covered with the transition plate 21; in order to limit the opening and closing angle of the cover plate 22, the end of the cover plate 22 is provided with a limiting part 221, the transition plate 21 is provided with an abutting part 212 matched with the limiting part 221, the limiting part 221 is attached to the abutting part 212 to limit the opening and closing angle of the cover plate 22, and the arrangement can prevent the cover plate 22 from transitionally overturning and striking other devices. And when the opening and closing angle of the cover plate 22 is set to be more than 90 degrees to 180 degrees, the carding bar is not influenced by the cover plate when steel rolling accidents happen. A handle 222 may also be provided on top of the cover plate 22 for ease of operation. For convenient lifting, a lifting hook can be arranged on the transition plate 21; for fixing the transition plate 21, a fixing plate 213 is fixedly connected to the bottom thereof, and is connected to the fixed water beam 1 by bolts.
The collecting guide groove 4 comprises a collecting base 41, a collecting plate 42 and a second protective cover 43, and the collecting base 41 is arranged on the fixed water beam 1; the collecting plate 42 is fixedly arranged on the collecting base 41, a second guide groove 421 is formed in the top of the collecting plate 42, the second guide grooves of adjacent single wires share one collecting plate, and the second guide grooves 421 on a plurality of single wires gather from the beginning end of the second guide groove to the tail end of the second guide groove along the running direction of the bars; the second protection cover 43 is fastened to the collection plate 42 at the top of the second guiding groove 421, and the second protection covers of adjacent single wires are shared and form a channel with the second guiding groove 421 for the bar to run. In order to facilitate the installation of the second protection cover 43, a handle is fixedly arranged at the top of the second protection cover 42, a second clamping groove 431 is arranged at the side of the second protection cover 43, and a limit column 422 matched with the second clamping groove 431 is arranged on the collecting plate 42. When the second locking groove 431 is inclined toward the bar running direction, the second protection cover 43 and the collecting plate 42 are connected more firmly along with the bar running. In order to reduce the steel stacking probability, the initial end of the collecting channel is an annular horn mouth; for the installation of the whole collecting guide groove, a hanging ring is arranged on the collecting guide groove. In actual use, the number of the collecting guide grooves can be set according to the needs, and the number of the collecting guide grooves is generally 2 or 4 in the common case of steel rolling.
The bottom of first assembly seat 311 and collection base 41 has set firmly a plurality of installation department 3114 respectively, and the lateral part setting of first assembly seat and collection base is extended to every installation department 3114 tip, be equipped with on the fixed water beam 1 with installation department complex mounting groove, the installation department is restricted through the stopper and is installed in the mounting groove, stopper demountable installation is in the mounting groove. The lifting ring is fixedly arranged on the first assembling seat and the collecting base for convenient installation, and the lifting ring is installed after the lifting ring is lifted and squatted when the lifting ring is assembled with the fixed water beam.
Example 2:
as shown in fig. 11, on the basis of embodiment 1, the arrangement mode of the cooling structure is different from embodiment 1, specifically, the cooling structure is composed of at least 1 water cooling unit, at least 1 anti-water cooling unit and at least 1 minimum unit formed by the air passing unit, and the cooling structures of adjacent single wires are the same, so that continuous cooling production of bars can be realized, wherein the water cooling unit 31 is used for bar water cooling, the anti-water cooling unit 32 is used for preventing the bars from running backwards to carry water, and the air passing unit 33 is used for guiding the bars to the collecting guide groove.
Example 3:
as shown in fig. 12, in the embodiment 1 or 2, at least one air-passing unit 33 is provided at the start of the cooling structure, and the cooling structures 3 of the adjacent single wires are the same. At this time, the empty unit 33 is used for guiding the bar from the transition guide groove to the water cooling unit 31, and can prevent the water of the water cooling unit 31 from being reversely sprayed to the temperature measuring device at the tail end of the transition guide groove to a certain extent, thereby affecting the use of the temperature measuring device.
Example 4:
as shown in fig. 13-14, on the basis of embodiment 3, when the air-passing tube 331 is disposed between the adjacent cooling nozzles 312 of one single wire, and the cooling nozzles 312 are disposed on the other single wires parallel to the air-passing tube 311, adjustment of a larger temperature difference between wires can be achieved, for example, when a certain production process produces bars, when the cooling temperature of one single wire cooling device is lower than that of the other single wires by 15-20 ℃, shutdown is required, and one cooling nozzle of the wire is replaced by the air-passing tube rapidly, and the temperature difference adjustment range of a single air-passing tube is about 15-20 ℃, so that the temperature difference between wires can be compensated, uniform temperature production of each wire can be achieved, and the quality of finished products is ensured.
In the above text, the various starting ends and the end ends mentioned are opposite, the starting end being the bar entry end and the end being the bar exit end.
The above embodiments are not to be taken as limiting the scope of the invention, and any alternatives or modifications to the embodiments of the invention will be apparent to those skilled in the art and are intended to fall within the scope of the invention. The present invention is not described in detail in the following, but is well known to those skilled in the art.
Claims (4)
1. The multi-line cutting rolling control cooling device for the bars is characterized by comprising a plurality of single-line cooling devices which are arranged in parallel, wherein the single-line cooling devices are arranged on the same fixed water beam, each single-line cooling device comprises a transition guide groove, a cooling structure and a collecting guide groove which are sequentially arranged along the production direction of the bars, and the cooling structure comprises a water cooling unit, a water back-flushing unit and an air-passing unit;
the water cooling unit comprises a first assembly seat arranged on a fixed water beam, a cooling nozzle is arranged on the first assembly seat, a water inlet and a first clamping table are arranged on the cooling nozzle along the bar production direction, an annular convex part is connected outside the water inlet, the annular convex part is embedded and connected with a water inlet hole arranged on the first assembly seat, the first clamping table is clamped with a clamping groove arranged on the first assembly seat, a pressing part for fastening the cooling nozzle on the first assembly seat is arranged on the first assembly seat, and the water cooling units of adjacent single lines share the first assembly seat;
the hollow passing unit comprises a second assembly seat which is arranged on the fixed water beam, the second assembly seat is identical with the first assembly seat, a hollow passing pipe is arranged on the second assembly seat, a blocking part for blocking a water inlet hole and a second clamping table matched with the clamping groove are arranged on the hollow passing pipe, and the hollow passing units of adjacent single wires share the second assembly seat;
a hollow pipe is arranged between adjacent cooling nozzles of one single line, and cooling nozzles are arranged on the other single lines parallel to the hollow pipe;
the cooling nozzle comprises an inlet guide pipe A, a box body A, an outlet guide pipe A and an outlet guide sleeve which are sequentially connected along the bar production direction, wherein the tail end of the inlet guide pipe A and the beginning end of the outlet guide pipe A extend into the box body A to be arranged, a water inlet seam A forming an acute angle with the bar production direction is formed, a water inlet and an annular convex part are arranged at the bottom of the box body, a first clamping table is arranged on the outlet guide sleeve, the water inlet seam A is communicated with the water inlet, a plurality of gaskets are arranged between the inlet guide pipe A or/and the outlet guide pipe A and the box body A, and the size of the water inlet seam A is adjusted by increasing or decreasing the gaskets;
the transition guide groove comprises a transition plate and a cover plate, wherein the top of the transition plate is provided with a first guide groove along the running direction of the bar, the first guide grooves of adjacent single lines share the transition plate, the cover plate is arranged on the transition plate at the top of the first guide groove and encloses a transition channel for the bar to run with the first guide groove, the cover plates of the adjacent single lines share, the running tail end of the cover plate is fixedly connected with the transition plate, and the running start end of the cover plate is movably covered with the transition plate.
2. The bar multi-line splitting rolling control cooling device according to claim 1, wherein a plurality of protection covers are buckled on the fixed water beam provided with the cooling structure along the bar production direction, and the cooling structure is arranged between the protection covers and the fixed water beam.
3. The multi-line bar splitting rolling control cooling device according to claim 1, wherein two adjacent water cooling units along the bar running direction share a first assembly seat, and two adjacent air cooling units along the bar running direction share a second assembly seat.
4. The bar multi-line splitting rolling control cooling device according to claim 1, wherein the anti-water-spraying unit comprises a third assembly seat arranged on a fixed water beam, a plurality of opposite nozzles and guide pipes are arranged on the third assembly seat in a centering manner along the bar production direction, the opposite nozzles are used for preventing the bar from running backwards to carry water, and the anti-water-spraying units of adjacent single lines share the third assembly seat.
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| CN201910827493.9A CN110586669B (en) | 2019-09-03 | 2019-09-03 | Multi-line cutting rolling control cooling device for bar |
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| CN114074116B (en) * | 2020-08-13 | 2024-03-19 | 北京京诚瑞信长材工程技术有限公司 | Rolling and cooling control production line for hot rolled steel bar |
| CN112170492A (en) * | 2020-09-24 | 2021-01-05 | 宁夏建龙龙祥钢铁有限公司 | Many segmentations production minus tolerance stabilising arrangement |
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| CN211330750U (en) * | 2019-09-03 | 2020-08-25 | 石横特钢集团有限公司 | Controlled cooling device for multi-line slitting rolling of bar |
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| KR20050067848A (en) * | 2003-12-29 | 2005-07-05 | 주식회사 포스코 | Water cooling apparatus in hot rolled wire rod |
| CN1718769A (en) * | 2005-07-07 | 2006-01-11 | 东北大学 | Ultrafast cooling device for wire and rod hot rolling production line |
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