WO2010105579A1 - 精轧机架间冷却装置 - Google Patents

精轧机架间冷却装置 Download PDF

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Publication number
WO2010105579A1
WO2010105579A1 PCT/CN2010/071160 CN2010071160W WO2010105579A1 WO 2010105579 A1 WO2010105579 A1 WO 2010105579A1 CN 2010071160 W CN2010071160 W CN 2010071160W WO 2010105579 A1 WO2010105579 A1 WO 2010105579A1
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WO
WIPO (PCT)
Prior art keywords
plunger
cooling device
disposed
nozzles
fixedly connected
Prior art date
Application number
PCT/CN2010/071160
Other languages
English (en)
French (fr)
Inventor
王军
Original Assignee
宝山钢铁股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 宝山钢铁股份有限公司 filed Critical 宝山钢铁股份有限公司
Publication of WO2010105579A1 publication Critical patent/WO2010105579A1/zh

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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
    • B21B45/0233—Spray nozzles, Nozzle headers; Spray systems
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/74—Temperature control, e.g. by cooling or heating the rolls or the product
    • 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
    • B21B45/0218—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes for strips, sheets, or plates

Definitions

  • the present invention relates to a strip cooling device in the metallurgical field, and more particularly to a strip cooling device suitable for use in a finishing rolling line. Background technique
  • the steel rolling mill's finishing line uses a strip cooling device. Its main function is to rapidly cool the finished strip according to the set finishing temperature to ensure the product structure and performance of the strip.
  • the root cause of the strip side wave and the unevenness of the edge structure is the uneven temperature in the width direction of the strip. Therefore, in order to improve the quality of the strip edge, it is urgent to solve the problem of the uniformity of the cooling temperature of the hot strip.
  • the edge heater needs a large equipment configuration space, and the finishing rolling rack area of the hot rolling line often does not have enough space to set such a huge set of equipment. For example, the Baosteel Hot Rolling 2250mm production line cannot set this. Edge heater device;
  • the initial input cost of the edge heater is high. Taking the Baosteel 1580 production line as an example, the initial input of the edge heater (EH) will cost 80 million yuan; 3.
  • the edge heater uses high energy consumption.
  • the steel industry is facing the arduous mission of implementing a low-carbon economy, and the edge heater (EH) technology set to increase the temperature of the strip side of the hot rolling line is electric induction heating, which consumes a large amount of electricity during production and use.
  • the electrothermal conversion efficiency of the 1580mm line side heater is only 40%. At present, the electrothermal conversion efficiency of Baosteel's hot-rolled 1880mm line side heater has reached 80%, but the cost of heating the edge of the strip is high. It is unavoidable and is not conducive to the saving and control of production resources;
  • the side induction heater has an electric induction heating head with high failure rate and maintenance cost. Taking Baosteel 1580 production line as an example, the life of the heating head is only 6 to 12 months, the cost is 800,000, and the installed capacity is 8 heating heads. Only the heating head spare parts consume more than 6 million yuan a year. Hot cloth costs are also very high.
  • the applicant wishes to invent another strip cooling device for the finishing rolling line, which can achieve the basis of less equipment manufacturing capacity and equipment configuration cost without affecting the stability of the finishing strip.
  • the cooling process requirements of different widths of the finish strip are corresponding to the establishment of the gap cooling water of the finishing stand corresponding to the width of the strip passage, so as to achieve the corresponding change of the cooling water of the finishing stand in the width of the strip.
  • the object of the present invention is to provide a cooling device arranged between the finishing stands, which can achieve the fineness of equipment manufacturing and equipment configuration cost without affecting the cooling stability of the finishing strip.
  • the cooling process requirements of different widths of the strip steel strip are corresponding to the establishment of the gap cooling water of the finishing stand corresponding to the width of the strip channel, so as to achieve the corresponding change of the cooling water of the finishing stand in the width of the strip, thereby adjusting the cooling water in the finishing stand.
  • the cooling width region in the width direction overcomes the problem that the cooling device in the prior art cannot solve the problem of uneven distribution of the cooling width in the strip width direction, thereby realizing the reduction of the temperature drop of the strip edge portion in the finish rolling zone, and ensuring the strip steel.
  • the purpose of plate shape, mechanical properties, temperature and phase change in the width direction of the strip are examples of the width direction of the strip.
  • the present invention provides a cooling device disposed between the finishing stands, comprising a header on which a plurality of rows of nozzles connected to the header are arranged; and the device further comprises:
  • valve devices corresponding to each row of nozzles
  • a plurality of driving devices are respectively connected with the respective valve devices, and each of the valve devices is driven to block the conduction between the nozzles and the headers of the respective rows.
  • the header is an upper spray pipe
  • the nozzle is an upper spray pipe
  • each upper spray pipe is electrically connected to the upper spray pipe through an upper port thereof.
  • the number of nozzles in each row is at least one.
  • each of the valve devices comprises:
  • each plunger sleeve is electrically connected to the upper port of each upper nozzle, and each of the plunger sleeves passes through a wall provided on the wall of the tube.
  • the nozzle is connected to the upper spray pipe; a plurality of plungers are respectively disposed in the respective plunger sleeves, the outer diameter of the plunger is matched with the inner diameter of the plunger sleeve, and the plungers are respectively disposed along the plunger sleeves Slide to block the water inlet.
  • the plurality of driving devices are vertically arranged hydraulic cylinders or cylinders, and the hydraulic rod of each hydraulic cylinder or the cylinder rod of the cylinder is connected to the upper end portion of each plunger through a connecting mechanism.
  • the upper end of the plunger is provided with a ball head
  • the connecting mechanism comprises:
  • An upper plate the upper end surface thereof is fixedly connected with each hydraulic rod or the cylinder rod, and the lower end surface is provided with a plurality of upper semi-spherical grooves corresponding to the plunger;
  • the lower plate is correspondingly provided with a plurality of lower semi-spherical grooves, and the upper plate and the lower plate are fixedly connected to form a plurality of spherical grooves, and the plurality of ball ends are correspondingly disposed in the respective spherical grooves.
  • the cooling device disposed between the finishing stands further comprises:
  • a plurality of guide frames are disposed between the adjacent two rows of nozzles along the axial direction of the upper spray header, and a vertically disposed guide groove is formed on the left and right outer sidewalls of the guide frame;
  • the plug corresponds to the connection.
  • a connecting mechanism is disposed between the lower end surface of each of the guiding blocks and the plunger at the corresponding position, and the connecting mechanism comprises:
  • the two side plates are respectively disposed at the left and right ends of the lower end surface of the horizontal connecting plate, and are vertically fixedly connected with the horizontal connecting plate, and the upper ends of the plurality of plungers are respectively disposed between the two side plates, and each of the two columns a pin hole is opened in the upper end of the plug, and the two side plates are provided with a plurality of pairs of perforations at positions corresponding to the pin holes;
  • a plurality of pins are respectively inserted into the pair of perforations and pin holes for connecting the upper ends of the plungers to the side plates.
  • the upper spray header is a split type upper spray header, which comprises a fixedly connected upper tube cover and a lower tube body, wherein the upper spray nozzles in each of the rows are flush, the each A valve device includes:
  • a guiding sleeve vertically penetrating the upper tube cover and sealingly and fixedly connected thereto;
  • a transmission rod is sleeved in the guide sleeve and slides along the guide sleeve; a connecting block, the upper end of which is fixedly connected to each driving device, and the lower end thereof is fixedly connected with the upper end of the transmission rod;
  • a horizontal plate is fixedly connected to the lower end of the transmission rod, and a lower surface of the horizontal plate is in contact with a port on each of the upper nozzles to block the cooling water flow of each of the upper nozzles.
  • the driving device is a vertically disposed cylinder or hydraulic cylinder, and a cylinder rod of the cylinder or a hydraulic rod of the hydraulic cylinder is fixedly connected to the connecting block.
  • connection block comprises:
  • An upper connecting block the lower end surface of which is provided with an upper semi-spherical groove
  • the connecting block has a lower hemispherical groove corresponding to the position, and the upper connecting block is fixedly connected with the lower connecting block to form a spherical groove, and the ball head is disposed in the spherical groove.
  • the upper nozzle port is connected to a horizontally arranged nozzle interface plate, and the nozzle interface plate has a plurality of vertical through holes at positions corresponding to the upper nozzle ports, and the nozzle interface The upper surface of the plate is in sealing contact with the horizontal plate to block the flow of cooling water from each of the upper nozzles.
  • the lower surface of the horizontal plate is further provided with a sealing layer.
  • the header is a lower spray header
  • the nozzle is a lower spray nozzle
  • each lower spray nozzle is electrically connected to the lower spray header through a lower port thereof.
  • each of the valve devices comprises:
  • a tail-end sealed plunger tube correspondingly disposed under each row of lower nozzles, the first end of the plunger tube penetrates the lower nozzle tube wall and is fixedly and sealingly connected thereto, the plunger tube wall A plurality of holes are formed in the position corresponding to each of the lower nozzles for achieving conduction between the lower nozzle and the plunger tube, and a water inlet is further disposed on the wall of the plunger tube for realizing the plunger tube and Conduction of the lower spray header;
  • a plunger is disposed in the plunger tube to slide the water inlet along the plunger tube, and the outer diameter of the plunger matches the inner diameter of the plunger tube.
  • the first end of the plunger is provided with a ball head, and is connected to the connecting mechanism.
  • the connecting mechanism comprises: a first connecting block, an outer end surface thereof is correspondingly connected with the driving device, and an inner end surface thereof is provided with a semi-spherical groove;
  • the first connecting block is fixedly connected to the second connecting block to form a spherical slot, and the ball head is disposed in the spherical slot.
  • the plurality of driving devices are all cylinders or hydraulic cylinders, and the cylinder rods of the cylinders or the hydraulic rods of the hydraulic cylinders are correspondingly connected with the plungers.
  • the invention adopts the cooling device described in the above technical solution, so that it can establish the cooling water of the finishing stand corresponding to the width of the strip channel according to the cooling process requirements of different widths of the finish strip, and realize the cooling of the finishing stand.
  • the corresponding change of water in the width of the strip thereby adjusting the cooling width area of the cooling water of the finishing stand in the width direction of the channel, thereby reducing the temperature drop of the strip edge in the finish rolling zone, ensuring the shape of the strip, mechanical properties,
  • Fig. 1 is a schematic view showing the structure of an upper spray cooling device provided between finish rolling stands in the present invention.
  • Fig. 2 is a schematic view showing the structure of an upper spray cooling device in the first embodiment of the present invention.
  • Figure 3 is a cross-sectional view taken along line A-A of Figure 2.
  • Figure 4 is a schematic view showing the structure of a plunger in Embodiment 1 of the present invention.
  • Figure 5 is a schematic view showing the structure of a plunger tube in Embodiment 1 of the present invention.
  • Figure 6 is a schematic view showing the structure of an upper spray cooling device in Embodiment 2 of the present invention.
  • Figure 7 is a cross-sectional view taken along line A-A of Figure 6.
  • Figure 8 is a schematic view showing the structure of a plunger in Embodiment 2 of the present invention.
  • Figure 9 is a schematic view showing the structure of a guiding mechanism in Embodiment 2 of the present invention.
  • Figure 10 is a cross-sectional view taken along line B-B of Figure 9.
  • Figure 11 is a schematic view showing the connection structure of the plunger in the second embodiment of the present invention.
  • Figure 12 is a schematic view showing the structure of an upper spray cooling device in Embodiment 3 of the present invention.
  • Figure 13 is a cross-sectional view taken along line A-A of Figure 12.
  • Figure 14 is a schematic view showing the structure of a lower jet cooling device provided between the finishing stands in the present invention.
  • Figure 15 is a schematic view showing the structure of a lower jet cooling device of Embodiment 4 and Embodiment 5 in the present invention.
  • Figure 16 is a plan view of Figure 15.
  • Figure 17 is a cross-sectional view taken along line A-A of Figure 15 of Embodiment 4 of the present invention.
  • Figure 18 is a cross-sectional view taken along line B-B of Figure 17.
  • Figure 19 is a cross-sectional view taken along line A-A of Figure 15 of Embodiment 5 of the present invention.
  • Figure 20 is a cross-sectional view taken along line B-B of Figure 19.
  • Figure 21 is a schematic view showing the structure of a plunger in Embodiment 4 and Embodiment 5 of the present invention.
  • Figure 22 is a schematic view showing the structure of a plunger tube in Embodiment 4 and Embodiment 5 of the present invention. Description of the reference numerals
  • 29-low connection block 30-horizontal plate 31-nozzle interface plate 32-drive rod ball head
  • the upper spray cooling device L is disposed above the strip G on the inlet side of the finishing stand H, and the cooled strip is formed under the rolling of the roll P.
  • the upper spray cooling device includes an upper spray header 1 which is disposed along the vertical strip running direction, and a plurality of rows of spray nozzles are evenly distributed along the axial direction of the upper spray header 1.
  • each row of upper nozzles comprises three upper nozzles 2, and the three upper nozzles 2 are arranged along the radial direction of the upper nozzle 1, all of which are sprayed
  • the nozzle 2 is electrically connected to the upper spray header 1 through its upper port provided in the upper spray header 1.
  • a plurality of sets of plunger devices are correspondingly disposed above the plurality of rows of nozzles.
  • Each of the plunger devices comprises: three positioning sleeves 5 arranged in parallel with each other, the positioning sleeves 5 respectively correspondingly disposed above the three upper nozzles 2, and the positioning sleeves 5 pass through the tubes of the upper nozzles 1
  • the wall is fixedly sealed with the same;
  • the three plunger sleeves 3 are provided with a water inlet 6 as shown in FIG. 5, and the three plunger sleeves 3 are respectively fixedly disposed in the three positioning sleeves 5, and the lower end and each of the upper sprays
  • the upper port of the nozzle 2 is correspondingly connected to realize the conduction with the upper nozzle 2;
  • the three upper spray plungers 4 are respectively disposed in the three plunger sleeves 3 and slide along the axial direction of the plunger sleeve 3 Block the water inlet 6.
  • the cylinder 7 is fixedly mounted above the upper spray header 1 through a support frame, and the cylinder rod 8 is connected to the three upper spray plungers 4 through a connecting mechanism, thereby realizing one cylinder to simultaneously drive the three plungers.
  • the connecting mechanism includes an upper plate 10 and a lower plate 11, wherein the lower end of the cylinder rod 8 is fixedly connected to the upper plate 10 through a connecting plate, and the lower end surface of the upper plate 10 has three upper semi-spherical grooves 12, and the three lower plates 11 respectively pass the screws.
  • the upper plate 10 is fixedly connected to the upper plate 10, and the lower semi-spherical groove 13 is formed at a position corresponding to the upper plate.
  • the upper semi-spherical groove 12 and the lower semi-spherical groove 13 together form a spherical groove 14, and the plunger ball 9 is disposed in the spherical groove 14. , to achieve the connection of the upper spray plunger 4 and the connection mechanism.
  • the plunger in the device is a ball plunger, and the upper end of the plunger rod is screwed to the ball 9 .
  • the upper end of the plunger sleeve of the device is further provided with a sealing member 15 for sealing the gap between the upper spray plunger and the plug sleeve to prevent overflow of the cooling water.
  • the upper spray device drives a row of upper spray plungers corresponding to a row of upper spray nozzles by a cylinder, and the upper spray plunger slides along the inner wall of the plunger sleeve, thereby opening the water inlet and Closed, thereby achieving adjustment of the amount of cooling water along the width of the strip.
  • the upper spray cooling device L is disposed above the strip G on the inlet side of the finishing stand H, and the cooled strip is formed under the rolling of the roll P.
  • the upper spray cooling device includes an upper spray header 1 which is disposed along the direction in which the vertical strip runs, and a plurality of rows of spray nozzles are evenly distributed along the axial direction of the upper spray header 1.
  • each row of upper nozzles comprises three upper nozzles 2, which are arranged in the radial direction of the upper spray header 1, through which all upper nozzles 2 pass
  • the port is electrically connected to the upper spray pipe 1, and a plurality of sets of plunger devices are correspondingly arranged above the plurality of discharge nozzles.
  • Each of the plunger devices comprises: three positioning sleeves 5 arranged in parallel with each other, the positioning sleeves 5 respectively correspondingly disposed above the three upper nozzles 4, and the positioning sleeves 5 pass through the tubes of the upper nozzles 1 Wall and its fixed
  • the three plunger sleeves 3 are respectively fixedly arranged in the three positioning sleeves 5, wherein each of the plunger sleeves 3 is provided with a water inlet, and the upper end thereof is also provided with a sealing sleeve 16, the lower end and each of which The upper port of the lower nozzle 2 is correspondingly connected to realize the conduction with the upper nozzle 2; the three upper spray plungers 4 are respectively disposed in the three plunger sleeves 3, and are slidably blocked along the plunger sleeve 3 water intake.
  • the cylinder 7 is fixedly mounted above the upper spray header 1 through the support frame, the lower end of the cylinder rod 8 is fixedly connected with the guiding device, and the guiding device is connected with the three upper spray plungers 4 through the connecting mechanism, thereby realizing one cylinder synchronously driving the three columns. Plug.
  • the structure of the guiding device is as shown in FIG. 6, FIG. 9 and FIG. 10.
  • the guiding frame 17 is fixedly mounted on the upper spray header 1 through the base of the guide frame, and the guide frame 17 is disposed adjacent to each other along the axial direction of the upper spray header 1.
  • the left and right outer side walls of the guide frame 17 are respectively provided with a vertically disposed guiding groove 18; the left and right ends of the guiding block 19 are respectively disposed in two adjacent guiding grooves 18, along the
  • the guiding groove 18 slides up and down, the upper end surface of the guiding block 11 is screwed and fixed to the head of the cylinder rod, and the lower end surface is fixedly connected with the connecting mechanism by bolts.
  • a plunger pin hole 20 is provided at the upper end portion of the upper spray plunger 4.
  • the upper end surface of the horizontal connecting plate 21 and the lower end surface of the guiding block 19 are bolted and fixed, and the two side plates 22 are respectively disposed on the horizontal connecting plate 21.
  • the left and right ends of the lower end surface are perpendicularly fixedly connected to the horizontal connecting plate 21, and the upper end portions of the three upper spray plungers 4 are disposed between the two side plates 22, and the two side plates 22 correspond to the respective plunger pins.
  • the hole 20 is provided with three pairs of pairs of perforations, and the three pins 23 are correspondingly inserted into the pair of perforations and the plunger pin holes 20 for connecting the three upper spray plungers 4 to the side plates 22. This connection allows the upper spray plunger 4 and the side plate 22 to be hinged to ensure the parallelism of the plunger movement when a cylinder drives a plurality of plungers.
  • a row of upper spray nozzles corresponding to a row of nozzles is driven by a cylinder, so that the upper spray plunger slides along the inner wall of the plunger tube, thereby achieving the advancement.
  • the opening and closing of the nozzle realizes the adjustment of the amount of cooling water along the width of the strip, and the guiding device can guide the linear reciprocating motion of the cylinder rod, thereby ensuring the stability of the operation of the entire device.
  • the upper spray device L is disposed above the strip G on the inlet side of the finishing stand H, and the cooled strip is formed under the rolling of the roll P.
  • the upper spray header 1 of the upper spray device is a split header comprising a lower tubular body 25 and an upper tubular cover 24 fixedly connected thereto.
  • the upper spray header 1 is disposed along a direction in which the vertical strip runs, and a plurality of rows of spray nozzles are uniformly disposed along the axial direction of the upper spray header 1, and each of the spray nozzles includes Three upper nozzles 2, which are arranged in the radial direction of the upper spray pipe 1, and three upper nozzles 2 are electrically connected to the upper spray header 1 through their upper ports.
  • Each of the upper spray nozzles is provided with an opening and closing valve correspondingly, comprising: a guiding sleeve 26 vertically extending through the upper tube cover 24, the outer wall of the guiding sleeve 26 is fixedly connected with the upper tube cover 24; the upper end portion is provided with a ball head
  • the transmission rod 27 is sleeved in the guiding sleeve 26 and slides along the inner wall of the guiding sleeve 26; a pair of fixed connecting upper connecting blocks 28 and lower connecting blocks 29, wherein the upper end of the upper connecting block 28 is fixedly connected with the cylinder rod 8, and the lower end thereof is provided
  • the lower end of the lower connecting block 29 is fixedly connected to the upper end of the transmission rod 27, and the upper end is correspondingly provided with a hemispherical groove.
  • the transmission rod ball head 32 is disposed on the spherical groove formed by the upper connecting block 28 and the lower connecting block 29. Inside.
  • the cylinder 7 is fixedly mounted on the upper tube cover 24 by a support frame.
  • the lower end of the transmission rod 27 is fixedly connected with the upper end of the horizontal plate 30, so that the transmission rod 27 is linearly reciprocated along the guide sleeve 26 under the driving of the cylinder 7, thereby driving the horizontal plate 30 to open or close the three upper nozzles 2
  • the pipe interface plate 31 has corresponding nozzle through holes formed therein to achieve conduction with the respective upper nozzles 2.
  • the lower surface of the horizontal plate 30 is further provided with a sealing layer 33.
  • the upper spray device is driven by a cylinder to drive an opening and closing valve to reciprocate up and down along the guide sleeve, thereby opening and closing the upper port of the upper spray nozzle, thereby realizing the pair of strips. Adjustment of the amount of cooling water in the width direction.
  • the lower spray device Q is disposed under the strip G on the inlet side of the finishing stand H, and the cooled strip is formed under the rolling of the roll P.
  • the lower spray device includes a lower spray header 34 disposed in the direction in which the vertical strip runs, and the inlet pipe 35 is disposed on the lower spray header 34 and is in communication therewith.
  • the tubes each include two lower nozzles 36 that are arranged in the radial direction of the lower nozzle 34, both of which are guided through their lower and lower nozzles 34.
  • a plurality of sets of plunger devices are respectively disposed corresponding to the respective discharge nozzles.
  • Each of the plunger devices includes: a plunger tube 37 corresponding to each of the lower nozzles 36 of each row, the axial direction of the plunger tube 37 being parallel to the axial direction of the inlet pipe 35
  • the tail end of the plunger tube 37 is sealed, and the leading end thereof penetrates the wall of the lower spray header 34 and is fixedly and sealingly connected thereto. As shown in Fig.
  • the inner wall of the first end of the plunger tube 37 is provided with a sealing member 15, and the upper edge of the tube wall
  • Two plunger tube holes 38 are opened in the axial direction, and the lower ports of the two lower nozzles 36 are correspondingly connected with the two plunger tube holes 38 for achieving conduction with the plunger tube 37
  • the column A water inlet 6 is further defined in the wall of the plug tube 37 for guiding the plunger tube 37 and the lower spray header 34; a lower spray plunger 39 is disposed in the plunger tube 37 along the plunger tube The inner wall of 37 slides to block the water inlet 6, thereby achieving adjustment of the cooling water opening and closing.
  • the outer diameter of the lower spray plunger 39 matches the inner diameter of the plunger tube 37, and the sealing member 15 is disposed between the two. The fit clearance is sealed.
  • the structure of the lower spray plunger 39 is as shown in Fig. 21.
  • the upper end portion is provided with a ball head 9, and the lower portion of the ball head 9 has a threaded journal, and the threaded journal and the threaded hole of the end face of the lower spray plunger 39 are provided.
  • the cylinder 7 is fixedly disposed on the lower spray header 34 through a support frame.
  • the cylinder rod 8 is connected to the lower spray plunger 39 through two connecting blocks.
  • the inner end surface of the first connecting block 40 is provided with a semi-spherical groove, and the second connecting block 41 is provided.
  • Another semi-spherical groove is provided, and the two connecting blocks are fixedly connected to form a spherical groove, and the ball head 9 is disposed in the spherical groove for connecting the lower spray plunger 39 and the two connecting blocks 40 and 41, the cylinder rod 8 It is screwed to the outer end surface of the first connecting block 40.
  • the device is driven by the cylinder to drive the lower plunger to slide in the plunger tube, thereby realizing the opening and closing of the water inlet, thereby realizing the opening and closing of the lower port of each lower nozzle in each row, thereby realizing the adjustment of the water volume. .
  • the lower spray device Q is disposed under the strip G on the inlet side of the finishing stand H, and the cooled strip is formed under the rolling of the roll P.
  • the lower spray device includes a lower spray header 34 which is disposed in the direction in which the vertical strip runs, and the inlet pipe 35 is disposed on the lower spray header 34.
  • the inlet pipe 35 is disposed on the lower spray header 34.
  • Each of the lower nozzles includes two lower nozzles 36 arranged in the radial direction of the lower nozzle 34, both of which are passed through the lower port thereof.
  • the lower spray pipe 34 is turned on, and a plurality of sets of plunger devices are respectively disposed corresponding to the respective discharge nozzles.
  • Each of the plunger devices includes: a plunger tube 37 corresponding to each of the lower nozzles 36 disposed in each row, the plunger tube 37 is horizontally disposed along the radial direction of the lower nozzle 34, the column The tail end of the plug tube 37 is sealed, and its leading end penetrates the wall of the lower spray header 34 and is fixedly and sealingly connected thereto.
  • the inner wall of the first end of the plunger tube 37 is provided with a sealing member 15 having two plunger tube holes 38 in the axial direction thereof, and the lower port of the two lower nozzles 36 and two.
  • the plunger tube hole 38 is correspondingly connected to realize the conduction with the plunger tube 37.
  • the inlet wall of the plunger tube 37 is further provided with a water inlet 6 for realizing the plunger tube 37 and the lower spray header. 34 is turned on; a lower spray plunger 39 is provided in the plunger tube 37 Inside, sliding along the inner wall of the plunger tube 37 blocks the water inlet 6, thereby achieving adjustment of the cooling water opening and closing.
  • the outer diameter of the lower spray plunger 39 matches the inner diameter of the plunger tube 37, and is disposed therebetween.
  • the seal 15 seals the mating gap between the two.
  • the structure of the lower spray plunger 39 is as shown in Fig. 21.
  • the upper end portion is provided with a ball head 9, and the lower portion of the ball head 9 has a threaded journal, and the threaded journal and the threaded hole of the end face of the lower spray plunger 39 are provided.
  • the cylinder 7 is fixedly disposed on the lower spray header 34 through a support frame.
  • the cylinder rod 8 is connected to the lower spray plunger 39 through two connecting blocks.
  • the inner end surface of the first connecting block 40 is provided with a semi-spherical groove, and the second connecting block 41 is provided.
  • Another semi-spherical groove is provided, and the two connecting blocks are fixedly connected to form a spherical groove, and the ball head 9 is disposed in the spherical groove for connecting the lower spray plunger 39 and the two connecting blocks 40 and 41, the cylinder rod 8 It is screwed to the outer end surface of the first connecting block 40.
  • the device is driven by the cylinder to drive the lower plunger to slide in the plunger tube, thereby realizing the opening and closing of the water inlet, thereby realizing the opening and closing of the lower port of each lower nozzle in each row, thereby realizing the adjustment of the water volume. .
  • the cooling device disposed between the finishing stands according to the present invention can be configured according to the cooling process requirements of different widths of the finished strip by corresponding embodiments, and correspondingly establish the fine corresponding to the width of the strip channel. Rolling the gap cooling water of the frame to realize the corresponding change of the cooling water of the finishing stand in the width of the strip, thereby adjusting the cooling width area of the cooling water in the channel width direction of the finishing stand, thereby reducing the temperature drop of the strip edge in the finishing rolling zone To ensure the strip shape, mechanical properties, temperature and phase change of the strip in the direction of the width of the strip.
  • the invention can avoid the waste of resources, especially the power consumption, while achieving the same temperature drop effect of the edge of the strip, thereby greatly reducing the production cost while improving the quality of the strip product.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Heat Treatment Of Articles (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
  • Nozzles (AREA)
  • Spray Control Apparatus (AREA)

Description

精轧机架间冷却装置 技术领域
本发明涉及一种冶金领域的带钢冷却装置， 尤其涉及一种适用于精轧生产线 的带钢冷却装置。 背景技术
钢铁企业的精轧生产线都要使用到带钢冷却装置， 其主要功能就是根据设定 的精轧目标温度将精轧带钢进行快速冷却， 以保证带钢的产品组织和性能。
随着冶金生产技术的不断发展， 带钢品种、 规格逐渐扩大， 微合金钢和碳锰 钢替代普通钢成为主要产品。 现有的带钢冷却装置， 随着轧线轧制规格的不断拓 展和用户对产品质量要求的不断提高， 已经不能满足部分钢种生产的需要， 尤其 是一些含有合金元素的强度钢 （如： BS600、 BS700、 B510L、 S45C、 SS400 等） 。 这些强度钢在轧线生产过程中， 多次出现带钢产品由于冷却不均造成的 C 翘， 以及带钢宽度方向冷却不均造成的板形变化,尤其是带钢边部温度降低较大会 在后续冷却过程中产生带来双边浪趋势的内应力， 从而给带钢的板形、 机械性 能、 温度及相变在宽度方向的均匀性都带来很大影响。
研究发现， 带钢边浪和边部组织不均匀的根本原因在于带钢宽度方向温度的 不均匀， 因此要改善带钢边部质量就迫切需要解决热轧带钢冷却温度均匀性问 题。
为了解决上述问题， 国外针对如何改善带钢边部质量研发了安装在精轧机入 口的边部加热器 （简称 EH ) 和层流冷却边部遮挡装置， 对带钢质量进行综合控 制， 国内多家冶金企业的热轧生产线都引进了德国 SMS公司的层流冷却边部遮挡 装置， 期待该装置能够改善带钢边部的质量。 然而， 在实际生产过程中， 采用该 设备还存在以下缺点：
1. 边部加热器需要较大设备配置空间， 而已有热轧产线的精轧机架区域， 往 往没有充足的空间设置如此一套庞大的设备， 例如宝钢股份热轧 2250mm产线就无 法设置该边部加热器装置；
2. 边部加热器初期投入成本高。 以宝钢 1580产线为例， 其边部加热器 （简称 EH) 初期投入就需 8000万元； 3. 边部加热器使用能耗高。 钢铁行业面临着实施低碳经济的艰巨使命， 而热 轧产线设置的为提高带钢边部温度的边部加热器 （EH) 技术为电感应加热， 在生 产使用时消耗电量大， 宝钢热轧 1580mm产线边部加热器的电热转换效率仅 40% 多， 目前宝钢热轧 1880mm产线边部加热器的电热转换效率虽然已达 80%， 但造成 带钢边部加热处理成本居高不下是无法避免的， 不利于生产资源的节约和控制；
4. 边部加热器 （EH) 的电感应加热头故障率和维护成本高。 以宝钢 1580产 线为例， 加热头寿命只有 6个至 12个月， 多个成本要 80万， 装机量 8个加热头， 仅 加热头备件消耗一年就要超过 600万元， 进口的隔热布费用也非常高。
因此， 申请人希望发明另外一种用于精轧生产线的带钢冷却装置， 该装置在 不影响精轧带钢稳定性的前提下， 以较少的设备制造量和设备配置成本， 达到能 够根据精轧带钢不同宽度的冷却工艺要求， 对应建立相应于带材通道宽度的精轧 机架缝隙冷却水， 从而实现精轧机架冷却水在带钢宽度上的相应变化。 发明内容
本发明的目的是提供一种设于精轧机架间的冷却装置， 该装置在不影响精轧 带钢冷却稳定性的前提下， 以较少的设备制造量和设备配置成本， 达到能够根据 精轧带钢不同宽度的冷却工艺要求， 对应建立相应于带材通道宽度的精轧机架缝 隙冷却水， 实现精轧机架冷却水在带钢宽度上的相应变化,从而调节精轧机架冷却 水在通道宽度方向上的冷却宽度区域， 以克服现有技术中的冷却装置对带钢宽度 方向冷却分布不均匀的问题无法解决的现象， 实现减少精轧区域带钢边部的温 降， 确保带钢的板形、 机械性能、 温度及相变在带钢宽度方向的均匀性的目的。
为了实现上述目的， 本发明提供了一种设于精轧机架间的冷却装置， 包括一 集管， 其上排布有若干排与集管导通的喷管； 此外该装置还包括：
若干阀门装置， 与各排喷管对应设置；
若干驱动装置， 与各阀门装置对应连接， 驱动各阀门装置活动阻断各排喷管 与集管的导通。
优选地， 所述集管为上喷集管， 所述喷管为上喷喷管， 各上喷喷管通过其上 端口与所述上喷集管导通。 每一排上喷喷管的个数最少为一个。
优选地， 所述每一阀门装置均包括：
若干柱塞套， 对应设于每一排的各上喷喷管上方， 所述各柱塞套的上端垂直 贯穿上喷集管管壁并与其密封固定连接， 各柱塞套的下端口与各上喷喷管的上端 口对应导通， 所述各柱塞套均通过设于其管壁上的一进水口与上喷集管导通； 若干柱塞， 分别对应设于各柱塞套内， 所述柱塞的外径与柱塞套的内径相匹 配， 所述各柱塞分别沿各柱塞套滑动， 阻断所述进水口。
优选地， 所述若干驱动装置均为垂直设置的液压缸或气缸， 每一液压缸的液 压杆或气缸的气缸杆通过一连接机构与各柱塞的上端部连接。
优选地， 所述柱塞的上端部设有球头， 所述连接机构包括：
一上板， 其上端面与各液压杆或气缸杆对应固定连接， 其下端面对应柱塞设 有若干上半球形槽；
一下板， 其上对应设有若干下半球形槽， 所述上板和下板固定连接， 组成若 干球形槽， 所述若干球头对应设于各球形槽内。
优选地， 所述设于精轧机架间的冷却装置还包括：
若干导向架， 沿所述上喷集管轴向方向设于相邻两排喷管之间， 所述导向架 的左、 右外侧壁上均开有一垂直设置的导向槽；
若干导向块， 其左、 右两端分别设于两相邻设置的导向槽中， 沿导向槽上下 滑动， 各导向块的上端面与各液压杆或气缸杆对应连接， 其下端面与各柱塞对应 连接。
优选地， 所述每一个导向块下端面与对应位置的柱塞之间均设有一连接机 构， 所述连接机构包括：
一水平连接板， 其上端面与所述导向块的下端面固定连接；
两侧板， 分别设于所述水平连接板下端面的左、 右两端， 与水平连接板垂直 固定连接， 所述若干柱塞其上端均设于两侧板之间， 所述每一个柱塞上端均开有 一销孔， 所述两侧板在对应销孔的位置开有若干对穿孔；
若干柱销， 分别对应插入所述对穿孔和销孔中， 用以实现各柱塞上端与两侧 板的连接。
优选地， 所述上喷集管为分体式上喷集管， 其包括固定连接的上管盖和下管 体， 所述每一排中的各上喷喷管上端口平齐， 所述每一阀门装置均包括：
一导向套， 垂直贯穿所述上管盖， 与其密封固定连接；
一传动杆， 套于所述导向套内， 沿导向套滑动； 一连接块， 其上端与各驱动装置对应固定连接， 其下端与所述传动杆的上端 固定连接；
一水平板， 与所述传动杆下端垂直固定连接， 所述水平板的下表面与各上喷 喷管上端口接触密封， 以阻断各上喷喷管的冷却水流。
优选地， 所述驱动装置为垂直设置的气缸或液压缸， 所述气缸的气缸杆或液 压缸的液压杆与所述连接块固定连接。
优选地， 所述传动杆上端部设有一球头， 所述连接块包括：
一上连接块， 其下端面设有一上半球形槽；
一下连接块， 其对应位置设有一下半球形槽， 所述上连接块与下连接块固定 连接， 形成一球形槽， 所述球头设于球形槽内。
优选地， 所述各上喷喷管上端口与一水平设置的喷管接口板连接， 所述喷管 接口板在对应各上喷喷管上端口的位置开有若干垂直通孔， 喷管接口板的上表面 与所述水平板接触密封， 以阻断各上喷喷管的冷却水流。
优选地， 所述水平板下表面还设有一密封层。
优选地， 所述集管为下喷集管， 所述喷管为下喷喷管， 各下喷喷管通过其下 端口与所述下喷集管导通。
优选地， 所述每一阀门装置均包括：
一尾端密封的柱塞管， 对应设于各排下喷喷管下方， 所述柱塞管的首端穿透 下喷集管管壁， 并与其固定密封连接， 所述柱塞管管壁上对应各下喷喷管的位置 开有若干孔， 用以实现各下喷喷管与柱塞管的导通， 所述柱塞管管壁上还设有一 进水口用以实现柱塞管与下喷集管的导通；
一柱塞， 设于所述柱塞管内， 沿柱塞管滑动阻断所述进水口， 所述柱塞的外 径与柱塞管的内径相匹配。
优选地， 所述柱塞首端设有一球头， 与连接机构连接， 所述连接机构包括： 第一连接块， 其外端面与所述驱动装置对应连接， 其内端面设有一半球形 槽；
第二连接块， 其上设有另一半球形槽；
所述第一连接块与第二连接块对应固定连接， 形成一球形槽， 所述球头设于 球形槽内。 优选地， 所述若干驱动装置均为气缸或液压缸， 所述各气缸的气缸杆或液压 缸的液压杆与各柱塞对应连接。
本发明由于采用了以上技术方案所述的冷却装置， 使其能够根据精轧带钢不 同宽度的冷却工艺要求， 对应建立相应于带材通道宽度的精轧机架缝隙冷却水， 实现精轧机架冷却水在带钢宽度上的相应变化,从而调节精轧机架冷却水在通道宽 度方向上的冷却宽度区域， 实现减少精轧区域带钢边部的温降， 确保带钢的板 形、 机械性能、 温度及相变在带钢宽度方向的均匀性的目的。 因此， 本发明在达 到同样带钢边部温降效果的同时， 能够避免资源浪费， 特别是电源的消耗， 从而 在提高带钢产品质量的同时， 大大降低了生产成本。 附图概述
本发明的具体特征、 性能由以下的实施例及其附图进一步给出。
此处所说明的附图用来提供对本发明的进一步理解， 构成本申请的一部分， 本发明的示意性实施例及其说明用于解释本发明， 并不构成对本发明的不当限 定。
图 1为本发明中的设于精轧机架间的上喷冷却装置的结构设置示意图。
图 2为本发明实施例 1中上喷冷却装置的结构示意图。
图 3为图 2中 A-A处的剖视图。
图 4为本发明实施例 1中柱塞的结构示意图。
图 5为本发明实施例 1中柱塞管的结构示意图。
图 6为本发明实施例 2中上喷冷却装置的结构示意图。
图 7为图 6中 A-A处的剖视图。
图 8为本发明实施例 2中柱塞的结构示意图。
图 9为本发明实施例 2中导向机构的结构示意图。
图 10为图 9中 B-B处的剖视图。
图 11为本发明实施例 2中柱塞的连接结构示意图。
图 12为本发明实施例 3中上喷冷却装置的结构示意图。
图 13为图 12中 A-A处的剖视图。
图 14为本发明中的设于精轧机架间的下喷冷却装置的结构设置示意图。
图 15为本发明中的实施例 4和实施例 5的下喷冷却装置结构示意图。 图 16为图 15的俯视图。
图 17为本发明实施例 4的图 15中 A-A处的剖视图。
图 18为图 17中 B-B处的剖视图。
图 19为本发明实施例 5的图 15中 A-A处的剖视图。
图 20为图 19中 B-B处的剖视图。
图 21为本发明实施例 4和实施例 5中的柱塞结构示意图。
图 22为本发明实施例 4和实施例 5中的柱塞管结构示意图。 附图标记说明
L-上喷冷却装置 P-轧辊 H-精轧机架 G-带钢 Q-下喷冷却装置
1-上喷集管 2-上喷喷管 3-柱塞套 4-上喷柱塞
5-定位套 6-进水口 7-气缸 8-气缸杆
9-球头 10-上板 11-下板 12-上半球形槽
13-下半球形槽 14-球形槽 15-密封件 16-密封套
17-导向架 18-导向槽 19-导向块 20-柱塞销孔
21-水平连接板 22-侧板 23-柱销 24-上管盖
25-下管体 26-导向套 27-传动杆 28-上连接块
29-下连接块 30-水平板 31-喷管接口板 32-传动杆球头
33-密封层 34_下喷集管 35-进水管 36-下喷喷管
37-柱塞管 38-柱塞管管孔 39-下喷柱塞 40-第一连接块
41-第二连接块 本发明的最佳实施方式
下面结合附图 1一 22来具体介绍本发明的较佳实施例。
实施例 1
如图 1所示， 该上喷冷却装置 L设于精轧机架 H入口侧的带钢 G上方， 经过冷 却的带钢在轧辊 P的轧制下成形。
如图 2和图 3所示， 该上喷冷却装置包括一根上喷集管 1， 其沿垂直带钢运行 方向设置， 若干排上喷喷管沿上喷集管 1的轴向方向均布于其上， 每一排上喷喷管 均包括三个上喷喷管 2， 这三个上喷喷管 2沿上喷集管 1的径向方向排布， 所有上喷 喷管 2均通过其设于上喷集管 1内的上端口与上喷集管 1导通。 若干套柱塞装置， 对 应设于所述若干排喷管上方。 其中每一套柱塞装置均包括： 三个彼此平行设置的 定位套 5， 定位套 5分别对应垂直设于三个上喷喷管 2的上方， 定位套 5穿过上喷集 管 1的管壁与其固定密封连接； 三个柱塞套 3， 其上开有如图 5所示的进水口 6， 三 个柱塞套 3分别对应固定设于三个定位套 5内， 其下端与各上喷喷管 2的上端口对应 连接， 从而实现与上喷喷管 2的导通； 三根上喷柱塞 4， 分别对应设于三个柱塞套 3 内， 沿柱塞套 3的轴向方向滑动阻断进水口 6。 气缸 7通过支撑架固定架设在上喷集 管 1的上方， 气缸杆 8通过连接机构与三根上喷柱塞 4连接， 从而实现一台气缸同步 驱动三根柱塞。 连接机构包括上板 10和下板 11， 其中气缸杆 8下端通过一连接板与 上板 10固定连接， 上板 10的下端面开有三个上半球形槽 12， 三块下板 11分别通过 螺钉与上板 10固定连接， 其与上板对应位置开有下半球形槽 13， 上半球形槽 12和 下半球形槽 13共同组成球形槽 14， 柱塞球头 9就设于球形槽 14内， 用以实现上喷柱 塞 4与连接机构的连接。
如图 4所示， 该装置中的柱塞为球头柱塞， 其柱塞杆的上端部螺纹连接有球 头 9。
如图 5所示， 该装置中的柱塞套上端还设有密封件 15， 用于对上喷柱塞和柱 塞套之间的间隙进行密封， 防止冷却水的溢出。
该上喷装置在使用过程中， 由一台气缸驱动与一排上喷喷管对应设置的一排 上喷柱塞， 上喷柱塞沿柱塞套内壁滑动， 从而实现对进水口的打开和闭合， 进而 实现对沿带钢宽度方向冷却水量的调节。
实施例 2
如图 1所示， 该上喷冷却装置 L设于精轧机架 H入口侧的带钢 G上方， 经过冷 却的带钢在轧辊 P的轧制下成形。
如图 6和图 7所示， 上喷冷却装置包括一根上喷集管 1， 其沿垂直带钢运行的 方向设置， 若干排上喷喷管沿上喷集管 1轴向方向均布于其上， 每一排上喷喷管均 包括三个上喷喷管 2， 这三个上喷喷管 2沿上喷集管 1的径向方向排布， 所有上喷喷 管 2均通过其上端口与上喷集管 1导通， 若干套柱塞装置， 对应设于所述若干排喷 管上方。 其中每一套柱塞装置均包括： 三个彼此平行设置的定位套 5， 定位套 5分 别对应垂直设于三个上喷喷管 4的上方， 定位套 5穿过上喷集管 1的管壁与其固定密 封连接； 三个柱塞套 3分别对应固定设于三个定位套 5内， 其中每一个柱塞套 3上均 开有进水口， 此外其上端还均套有密封套 16， 其下端与各下喷喷管 2的上端口对应 连接， 从而实现与上喷喷管 2的导通； 三根上喷柱塞 4， 分别对应设于三个柱塞套 3 内， 沿柱塞套 3滑动阻断进水口。 气缸 7通过支撑架固定架设在上喷集管 1的上方， 气缸杆 8的下端与导向装置固定连接， 导向装置通过连接机构与三根上喷柱塞 4连 接， 从而实现一台气缸同步驱动三根柱塞。
导向装置的结构如图 6、 图 9和图 10所示， 导向架 17通过导向架底座固定架设 于上喷集管 1上， 导向架 17沿上喷集管 1的轴向方向设于相邻两排喷管之间， 导向 架 17的左、 右外侧壁上均开有一垂直设置的导向槽 18 ; 导向块 19的左、 右两端分 别设于两相邻设置的导向槽 18中， 沿导向槽 18上下滑动， 导向块 11的上端面与气 缸杆头部螺纹连接固定， 下端面与连接机构采用螺栓固定连接。
如图 8所示， 上喷柱塞 4的上端部上设有柱塞销孔 20。
本实施例中的连接机构如图 7、 图 9和图 11所示， 水平连接板 21的上端面与导 向块 19的下端面用螺栓固定连接， 两块侧板 22分别设于水平连接板 21下端面的 左、 右两端， 并与水平连接板 21垂直固定连接， 三根上喷柱塞 4的上端部均设于两 块侧板 22之间， 两块侧板 22在对应各柱塞销孔 20的位置开有三对对穿孔， 三根柱 销 23对应插入各对穿孔和柱塞销孔 20中， 用以实现三根上喷柱塞 4与侧板 22的连 接。 该连接方式使得上喷柱塞 4与侧板 22实现了铰链连接， 从而保证了一台气缸驱 动若干个柱塞时， 柱塞运动的平行度。
本实施例所述的上喷装置在使用过程中， 由一台气缸驱动与一排喷管对应设 置的一排上喷柱塞， 使得上喷柱塞沿柱塞管内壁滑动， 从而实现对进水口的打开 和闭合， 进而实现对沿带钢宽度方向冷却水量的调节， 而导向装置能够对气缸杆 的直线往复运动起导向作用， 从而保证整个装置工作的稳定性。
实施例 3
如图 1所示， 上喷装置 L设于精轧机架 H入口侧的带钢 G上方， 经过冷却的带 钢在轧辊 P的轧制下成形。
如图 12和图 13所示， 该上喷装置中的上喷集管 1为一根分体式集管， 其包括 下管体 25和与其固定密封连接的上管盖 24。 该上喷集管 1沿垂直带钢运行的方向设 置， 若干排上喷喷管沿上喷集管 1的轴向方向均布于其上， 每一排上喷喷管均包括 三个上喷喷管 2， 这三个上喷喷管 2沿上喷集管 1的径向方向排布， 三个上喷喷管 2 均通过其上端口与上喷集管 1导通。 每一排上喷喷管上方均对应设有一启闭阀， 其 包括： 导向套 26， 垂直贯穿上管盖 24， 导向套 26的外壁与上管盖 24固定连接； 上 端部设有球头的传动杆 27套于导向套 26内， 沿导向套 26的内壁滑动； 一对固定连 接的上连接块 28和下连接块 29， 其中上连接块 28的上端与气缸杆 8固定连接， 其下 端设有半球形槽， 下连接块 29的下端与传动杆 27的上端固定连接， 其上端对应设 有半球形槽， 传动杆球头 32设于上连接块 28和下连接块 29共同形成的球形槽内。 气缸 7通过支撑架固定架设在上管盖 24上。 传动杆 27的下端与水平板 30的上端固定 连接， 从而实现传动杆 27在气缸 7的驱动下沿导向套 26做上下直线往复运动， 进而 带动水平板 30开启或闭合三个上喷喷管 2的上端口， 为了保证水平板 30与上喷喷管 2的上端口配合严密， 必须要保证所述三个上喷喷管 2的上端口平齐， 因此在三个 上端口上方设置了一块喷管接口板 31， 其上开有对应的喷管通孔， 从而实现与各 上喷喷管 2的导通。 为了保证水平板 30与各上喷喷管 2上端口接触面的密封性， 水 平板 30的下表面还设有一层密封层 33。
本实施例中的上喷装置在使用过程中， 由一台气缸驱动一个启闭阀沿导向套 做上下直线往复运动， 从而实现打开、 闭合上喷喷管的上端口， 进而实现对沿带 钢宽度方向冷却水量的调节。
实施例 4
如图 14所示， 下喷装置 Q设于精轧机架 H入口侧的带钢 G下方， 经过冷却的带 钢在轧辊 P的轧制下成形。
如图 15-图 18所示， 该下喷装置包括一根下喷集管 34， 其沿垂直带钢运行的方 向设置， 进水管 35设于下喷集管 34上并与其导通， 进水管 34的中心轴与下喷集管 34的水平中心轴之间有一夹角， 若干排下喷喷管 36沿下喷集管 34的轴向方向均布 于其上， 其中每一排下喷喷管均包括两个下喷喷管 36， 这两个下喷喷管 36沿下喷 集管 34的径向方向排布， 两下喷喷管 36均通过其下端口与下喷集管 34导通， 若干 套柱塞装置分别与各排下喷喷管对应设置。 其中每一套柱塞装置均包括： 一根柱 塞管 37对应设于每一排的各下喷喷管 36的下方， 柱塞管 37的轴向方向与进水管 35 的轴向方向平行设置， 柱塞管 37的尾端密封， 其首端穿透下喷集管 34的管壁， 并 与其固定密封连接。 如图 22所示， 柱塞管 37的首端内壁设有密封件 15， 管壁上沿 其轴向方向开有两个柱塞管管孔 38， 两下喷喷管 36的下端口与两个柱塞管管孔 38 对应连接， 用以实现其与柱塞管 37的导通， 柱塞管 37的管壁上还设有一进水口 6， 用以实现柱塞管 37与下喷集管 34的导通； 一根下喷柱塞 39设于柱塞管 37内， 沿柱 塞管 37的内壁滑动阻断进水口 6， 从而实现冷却水开闭的调节， 该下喷柱塞 39的外 径与柱塞管 37的内径相匹配， 设于二者之间的密封件 15对二者的配合间隙进行密 封。 下喷柱塞 39的结构如图 21所示， 其上端部设有球头 9， 球头 9的下部有一个带 螺纹的轴颈， 该螺纹轴颈与下喷柱塞 39本体端面的螺纹孔配合固定。 气缸 7通过支 撑架固定设于下喷集管 34上， 气缸杆 8通过两连接块与下喷柱塞 39连接， 其中第一 连接块 40的内端面设有一半球形槽， 第二连接块 41设有另一半球形槽， 两连接块 对应固定连接， 形成一球形槽， 球头 9就设于球形槽内， 用以实现下喷柱塞 39与两 连接块 40和 41的连接， 气缸杆 8与第一连接块 40的外端面螺纹固定连接。
该装置是通过气缸驱动下喷柱塞在柱塞管内滑动， 从而实现进水口的打开和 闭合， 进而实现对每一排中各下喷喷管下端口的打开和闭合， 以此实现水量的调 节。
实施例 5
如图 14所示， 下喷装置 Q设于精轧机架 H入口侧的带钢 G下方， 经过冷却的带 钢在轧辊 P的轧制下成形。
如图 15、 图 16、 图 19和图 20所示， 该下喷装置包括一根下喷集管 34， 其沿垂 直带钢运行的方向设置， 进水管 35设于下喷集管 34上并与其导通， 进水管 34的中 心轴与下喷集管 34的水平中心轴之间有一夹角， 若干排下喷喷管 36沿下喷集管 34 的轴向方向均布于其上， 其中每一排下喷喷管均包括两个下喷喷管 36， 这两个下 喷喷管 36沿下喷集管 34的径向方向排布， 两下喷喷管 36均通过其下端口与下喷集 管 34导通， 若干套柱塞装置分别与各排下喷喷管对应设置。 其中每一套柱塞装置 均包括： 一根柱塞管 37对应设于每一排的各下喷喷管 36的下方， 柱塞管 37沿下喷 集管 34的径向方向水平设置， 柱塞管 37的尾端密封， 其首端穿透下喷集管 34的管 壁， 并与其固定密封连接。 如图 22所示， 柱塞管 37的首端内壁设有密封件 15， 管 壁上沿其轴向方向开有两个柱塞管管孔 38， 两下喷喷管 36的下端口与两个柱塞管 管孔 38对应连接， 用以实现其与柱塞管 37的导通， 柱塞管 37的管壁上还设有一进 水口 6， 用以实现柱塞管 37与下喷集管 34的导通； 一根下喷柱塞 39设于柱塞管 37 内， 沿柱塞管 37的内壁滑动阻断进水口 6， 从而实现冷却水开闭的调节， 该下喷柱 塞 39的外径与柱塞管 37的内径相匹配， 设于二者之间的密封件 15对二者的配合间 隙进行密封。 下喷柱塞 39的结构如图 21所示， 其上端部设有球头 9， 球头 9的下部 有一个带螺纹的轴颈， 该螺纹轴颈与下喷柱塞 39本体端面的螺纹孔配合固定。 气 缸 7通过支撑架固定设于下喷集管 34上， 气缸杆 8通过两连接块与下喷柱塞 39连 接， 其中第一连接块 40的内端面设有一半球形槽， 第二连接块 41设有另一半球形 槽， 两连接块对应固定连接， 形成一球形槽， 球头 9就设于球形槽内， 用以实现下 喷柱塞 39与两连接块 40和 41的连接， 气缸杆 8与第一连接块 40的外端面螺纹固定连 接。
该装置是通过气缸驱动下喷柱塞在柱塞管内滑动， 从而实现进水口的打开和 闭合， 进而实现对每一排中各下喷喷管下端口的打开和闭合， 以此实现水量的调 节。
由上述各实施例可知， 本发明所述的设于精轧机架间的冷却装置可通过多种 实施方式， 根据精轧带钢不同宽度的冷却工艺要求， 对应建立相应于带材通道宽 度的精轧机架缝隙冷却水， 实现精轧机架冷却水在带钢宽度上的相应变化,从而调 节精轧机架冷却水在通道宽度方向上的冷却宽度区域， 实现减少精轧区域带钢边 部的温降， 确保带钢的板形、 机械性能、 温度及相变在带钢宽度方向的均匀性的 目的。 因此， 本发明在达到同样带钢边部温降效果的同时， 能够避免资源浪费， 特别是电源的消耗， 从而在提高带钢产品质量的同时， 大大降低了生产成本。 最后应当说明的是： 以上实施例仅用以说明本发明的技术方案而非对其限 制； 尽管参照较佳实施例对本发明进行了详细的说明， 所属领域的普通技术人员 应当理解： 依然可以对本发明的具体实施方式进行修改或者对部分技术特征进行 等同替换； 而不脱离本发明技术方案的精神， 其均应涵盖在本发明请求保护的技 术方案范围当中。

Claims

权利要求
1 . 一种设于精轧机架间的冷却装置， 包括一集管， 其上排布有若干排与集 管导通的喷管； 其特征在于， 还包括：
若干阀门装置， 与各排喷管对应设置；
若干驱动装置， 与各阀门装置对应连接， 驱动各阀门装置活动阻断各排喷管 与集管的导通。
2. 如权利要求 1所述的设于精轧机架间的冷却装置， 其特征在于， 所述集管 为上喷集管， 所述喷管为上喷喷管， 各上喷喷管通过其上端口与所述上喷集管导 通。
3. 如权利要求 2所述的设于精轧机架间的冷却装置， 其特征在于， 所述每一 阀门装置均包括：
若干柱塞套， 对应设于每一排的各上喷喷管上方， 所述各柱塞套的上端垂直 贯穿上喷集管管壁并与其密封固定连接， 各柱塞套的下端口与各上喷喷管的上端 口对应导通， 所述各柱塞套均通过设于其管壁上的一进水口与上喷集管导通； 若干柱塞， 分别对应设于各柱塞套内， 所述柱塞的外径与柱塞套的内径相匹 配， 所述各柱塞分别沿各柱塞套滑动， 阻断所述进水口。
4. 如权利要求 3所述的设于精轧机架间的冷却装置， 其特征在于， 所述若干 驱动装置均为垂直设置的液压缸或气缸， 每一液压缸的液压杆或气缸的气缸杆通 过一连接机构与各柱塞的上端部连接。
5. 如权利要求 4所述的设于精轧机架间的冷却装置， 其特征在于， 所述柱塞 的上端部设有球头， 所述连接机构包括：
一上板， 其上端面与各液压杆或气缸杆对应固定连接， 其下端面对应柱塞设 有若干上半球形槽；
一下板， 其上对应设有若干下半球形槽， 所述上板和下板固定连接， 组成若 干球形槽， 所述若干球头对应设于各球形槽内。
6. 如权利要求 3所述的设于精轧机架间的冷却装置， 其特征在于还包括： 若干导向架， 沿所述上喷集管轴向方向设于相邻两排喷管之间， 所述导向架 的左、 右外侧壁上均开有一垂直设置的导向槽；
若干导向块， 其左、 右两端分别设于两相邻设置的导向槽中， 沿导向槽上下 滑动， 各导向块的上端面与各液压杆或气缸杆对应连接， 其下端面与各柱塞对应 连接。
7. 如权利要求 6所述的设于精轧机架间的冷却装置， 其特征在于， 所述每一 个导向块下端面与对应位置的柱塞之间均设有一连接机构， 所述连接机构包括： 一水平连接板， 其上端面与所述导向块的下端面固定连接；
两侧板， 分别设于所述水平连接板下端面的左、 右两端， 与水平连接板垂直 固定连接， 所述若干柱塞其上端均设于两侧板之间， 所述每一个柱塞上端均开有 一销孔， 所述两侧板在对应销孔的位置开有若干对穿孔；
若干柱销， 分别对应插入所述对穿孔和销孔中， 用以实现各柱塞上端与两侧 板的连接。
8. 如权利要求 2所述的设于精轧机架间的冷却装置， 其特征在于， 所述上喷 集管为分体式上喷集管， 其包括固定连接的上管盖和下管体， 所述每一排中的各 上喷喷管上端口平齐， 所述每一阀门装置均包括：
一导向套， 垂直贯穿所述上管盖， 与其密封固定连接；
一传动杆， 套于所述导向套内， 沿导向套滑动；
一连接块， 其上端与各驱动装置对应固定连接， 其下端与所述传动杆的上端 固定连接；
一水平板， 与所述传动杆下端垂直固定连接， 所述水平板的下表面与各上喷 喷管上端口接触密封， 以阻断各上喷喷管的冷却水流。
9. 如权利要求 8所述的设于精轧机架间的冷却装置， 其特征在于， 所述驱动 装置为垂直设置的气缸或液压缸， 所述气缸的气缸杆或液压缸的液压杆与所述连 接块固定连接。
10.如权利要求 8或 9所述的设于精轧机架间的冷却装置， 其特征在于， 所述 传动杆上端部设有一球头， 所述连接块包括：
一上连接块， 其下端面设有一上半球形槽；
一下连接块， 其对应位置设有一下半球形槽， 所述上连接块与下连接块固定 连接， 形成一球形槽， 所述球头设于球形槽内。
11.如权利要求 8所述的设于精轧机架间的冷却装置， 其特征在于， 所述各上 喷喷管上端口与一水平设置的喷管接口板连接， 所述喷管接口板在对应各上喷喷 管上端口的位置开有若干垂直通孔， 喷管接口板的上表面与所述水平板接触密 封， 以阻断各上喷喷管的冷却水流。
12.如权利要求 11所述的设于精轧机架间的冷却装置， 其特征在于， 所述水 平板下表面还设有一密封层。
13.如权利要求 1所述的设于精轧机架间的冷却装置， 其特征在于， 所述集管 为下喷集管， 所述喷管为下喷喷管， 各下喷喷管通过其下端口与所述下喷集管导 通。
14.如权利要求 13所述的设于精轧机架间的冷却装置， 其特征在于， 所述每 一阀门装置均包括：
一尾端密封的柱塞管， 对应设于各排下喷喷管下方， 所述柱塞管的首端穿 透下喷集管管壁， 并与其固定密封连接， 所述柱塞管管壁上对应各下喷喷管的位 置开有若干孔， 用以实现各下喷喷管与柱塞管的导通， 所述柱塞管管壁上还设有 一进水口用以实现柱塞管与下喷集管的导通；
一柱塞， 设于所述柱塞管内， 沿柱塞管滑动阻断所述进水口， 所述柱塞的外 径与柱塞管的内径相匹配。
15.如权利要求 14所述的设于精轧机架间的冷却装置， 其特征在于， 所述柱 塞首端设有一球头， 与连接机构连接， 所述连接机构包括：
第一连接块， 其外端面与所述驱动装置对应连接， 其内端面设有一半球形 槽；
第二连接块， 其上设有另一半球形槽；
所述第一连接块与第二连接块对应固定连接， 形成一球形槽， 所述球头设于 球形槽内。
16.如权利要求 13-15中任意一项所述的设于精轧机架间的冷却装置， 其特征 在于， 所述若干驱动装置均为气缸或液压缸， 所述各气缸的气缸杆或液压缸的液 压杆与各柱塞对应连接。
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