A rare earth iron-based strip hot rolling descaling equipment

Abstract

The present invention discloses a rare earth iron-based strip hot rolling descaling device, comprising a plurality of width-adjustable hot rolling rollers arranged in sequence and at intervals along the moving direction of the ingot, at least one group of these width-adjustable hot rolling rollers is driven by a jet descaling driving roller, and these width-adjustable hot rolling rollers are connected by transmission; collecting troughs are respectively arranged on both sides of the width-adjustable hot rolling rollers, and each of the collecting troughs is connected to a cyclone filtering mechanism through a connecting pipe. The present invention can achieve the purpose of cooling the rollers, improve the working environment of the rollers, and efficiently remove the oxide scale on the surface of the strip, while collecting the oxide scale and spray water, avoiding the accumulation of oxide scale and interfering with the normal operation of the equipment, and the present invention collects, filters and recycles the excess spray water for reuse. The present invention is suitable for the technical field of hot rolling and descaling of strips in the production and processing of rare earth iron-based alloy strips.

Description

Technical Field

[0001] The invention belongs to the technical field of alloy strip production and processing, and specifically relates to a rare earth iron-based alloy rare earth iron-based strip hot rolling descaling device. Background Art

[0002] At present, when rare earth iron-based alloys are produced and processed, the general process flow is that first, rare earth metal ingots, iron ingots and other metals with a purity greater than 99% are added to a vacuum induction furnace according to a pre-designed alloy composition and smelted by a vacuum induction furnace, and the smelted alloy is cast into an ingot, and then forged and hot-rolled to finally form a strip of the required size. During the hot rolling process, the strip is rolled by the rollers. Because the oxide scale on its surface has weak ductility and is brittle, the oxide scale on both sides of the rollers will break and release its state of attachment to the surface of the strip. In order to avoid affecting the quality of the strip, these oxide scales need to be removed. Generally, spraying equipment is used to complete it. Specifically, by spraying water on the surface of the strip, the oxide scale is gradually washed away from the strip. However, in the actual production and processing process, the descaling effect is general, and in the process of rolling the strip, the temperature of the rollers will gradually increase, making its working environment harsh and affecting its service life. In addition, the removed oxide scale will accumulate at the bottom of the equipment, and part of the sprayed water will flow to both sides of the equipment and be wasted, which is not conducive to reuse. Therefore, it can be seen that there is an urgent need for a rare earth iron-based strip hot rolling descaling equipment to achieve the purpose of cooling the rolls, improving the working environment of the rolls, and efficiently removing the oxide scale on the surface of the strip, while collecting the oxide scale and spray water to avoid the accumulation of oxide scale and interference with the normal operation of the equipment, and collecting, filtering and recycling the excess spray water for reuse. Summary of the invention

[0003] The present invention provides a rare earth iron-based strip hot rolling descaling device, which is used to cool the rollers, improve the working environment of the rollers, and efficiently remove the oxide scale on the surface of the strip. At the same time, the oxide scale and spray water are collected to avoid the accumulation of oxide scale and interference with the normal operation of the equipment, and the excess spray water is collected, filtered and recycled for reuse.

[0004] To achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0005] A rare earth iron-based strip hot rolling descaling device comprises a plurality of width-adjustable hot rolling rollers arranged in sequence and at intervals along the moving direction of the ingot, at least one group of these width-adjustable hot rolling rollers is driven by a jet descaling driving roller, and these width-adjustable hot rolling rollers are connected by transmission; collecting troughs are respectively arranged on both sides of the width-adjustable hot rolling rollers, and each of the collecting troughs is connected to a cyclone filtering mechanism through a connecting pipe.

[0006] Furthermore, the width-adjustable hot rolling roller pair includes two rollers arranged opposite to each other up and down, forming a rolling channel between the two rollers, and width adjustment parts are respectively installed at both ends of each roller. The width adjustment parts are mounted on the rollers and connected to the shafts of the rollers. The strip is rolled by the width-adjustable hot rolling roller pair and passes through the rolling channel, and the two sides of the strip are restricted between the two width adjustment parts on both sides of the rollers.

[0007] Furthermore, the width adjustment member includes a connecting seat installed on the shaft rod through a connecting sleeve, and a limiting sleeve is detachably installed on one side of the connecting seat close to the end of the roller, and the limiting sleeve is mounted on the end of the roller.

[0008] Furthermore, the width adjustment member includes two buckling units that are buckled together and assembled on the end of the roller, each of the buckling units includes a first half buckle sleeve and a second half buckle sleeve that are connected to each other and respectively assembled on the roller and the shaft rod, and connecting ears are respectively constructed on both sides of the second half buckle sleeve, and the corresponding connecting ears on the two second half buckle sleeves are connected by bolts.

[0009] Furthermore, the jet-type descaling drive roller pair includes two descaling drive rollers arranged upper and lower, each of the descaling drive rollers is pressed on a corresponding rolling roller, a plurality of jet grooves are constructed on the outer circumferential surface of each descaling drive roller, and a plurality of spray holes connected to the assembly cavity in the descaling drive roller are opened at the bottom of each jet groove; a distribution pipe is installed in the assembly cavity, and a plurality of jet holes are opened on the distribution pipe; each of the descaling drive rollers is rotatably connected to the machine body, and the distribution pipe is fixedly connected to the machine body.

[0010] Furthermore, the descaling driving roller includes a plurality of sub-roller bodies spliced ​​to each other, and the cross-section of each sub-roller body is a fan-shaped structure; these sub-roller bodies are spliced ​​and connected to each other, and the two ends of the jet groove on each sub-roller body are connected to the corresponding ends of the jet groove on the corresponding sub-roller body; a first fixed seat and a second fixed seat are respectively arranged at the axial ends of the descaling driving roller, and the first fixed seat is connected and fixed to one end of each sub-roller body, and the second fixed seat is connected and fixed to the other end of each sub-roller body, and a rotating shaft and a shaft tube are respectively constructed on the first fixed seat and the second fixed seat, and the rotating shaft and the shaft tube are respectively connected to the machine body for rotation.

[0011] Furthermore, the jet groove includes annular grooves arranged at intervals along the axial direction of the descaling driving roller, and each of the annular grooves includes a contraction portion and an expansion portion which are alternately connected in sequence along the circumference of the descaling driving roller. The diameter of the contraction portion is smaller than the diameter of the expansion portion, and the connection between the contraction portion and the expansion portion has a smooth transition.

[0012] Furthermore, the jet groove comprises spiral grooves relatively constructed on the descaling driving roller, and the two spiral grooves have opposite rotation directions, and each spiral groove extends in an axial spiral along the descaling driving roller and is connected to another spiral groove.

[0013] Furthermore, the collecting trough includes an outer baffle plate and an inner guide plate which are arranged opposite to each other and connected at the lower ends, a guide trough is formed between the two, and the lower part of the guide trough is inclined downward and extends to the connecting pipe, the upper end of the outer baffle plate is higher than the upper end of the inner guide plate, and an inclined guide plate is constructed at the upper end of the inner guide plate, and the lower end of the guide plate is inclined and extends into the upper part of the guide trough; the connecting pipe includes a pipe body constructed with a first joint and a second joint, the first joint and the second joint are respectively connected to the corresponding guide trough, and a first control valve is installed at one end of the pipe body connected to the cyclone filtering mechanism.

[0014] Furthermore, the cyclone filtering mechanism includes an inlet hood whose small diameter end is connected to a connecting pipe through a connecting pipe, and the large diameter end of the inlet hood is connected to a liquid outlet pipe, and a cyclone filter hood adapted to the shape of the inlet hood is installed in the inlet hood, and a plurality of cyclone strips are constructed on the cyclone filter hood, and the large diameter end of the cyclone filter hood is connected to a rotating ring through a plurality of cyclone blades, and the rotating ring is rotatably connected to the inner wall of the large diameter end of the inlet hood; the connecting pipe and the liquid outlet pipe are connected by at least one bypass backwashing pipe system; the bypass backwashing pipe system includes a first conduit and a second conduit respectively connected to the connecting pipe and the liquid outlet pipe, the first conduit and the second conduit are connected at their respective ends close to each other through a threaded pipe, and a second control valve is installed on the second conduit, a third control valve is installed on a side of the liquid outlet pipe close to the inlet hood, a backwashing joint is constructed on a side of the liquid outlet pipe away from the inlet hood, and a connection point between the second conduit and the liquid outlet pipe is located between the third control valve and the backwashing joint.

[0015] Due to the adoption of the above-mentioned structure, the technical progress achieved by the present invention compared with the prior art is that: the present invention drives the corresponding width-adjustable hot rolling roller pair through the jet-type descaling driving roller pair, and the width-adjustable hot rolling roller pair is transmitted and connected, so that the width-adjustable hot rolling roller pair moves synchronously, thereby realizing continuous rolling and pushing the ingot, so that the ingot is gradually rolled and thinned, and at the same time, under the width restriction of the width-adjustable hot rolling roller pair, the width of the strip is limited, thereby achieving the expected width; in the process of rolling the strip, the high-pressure spray water is sprayed out through the jet-type descaling driving roller pair, and the loosened or detached oxide scale on the strip is flushed, and then the oxide scale is flushed into the collecting tank, and then enters the cyclone filter mechanism through the connecting pipe, the cyclone filter mechanism is connected to the water pump, and the oxide scale and the spray water are separated. The water mixture is filtered through a cyclone filter mechanism, so that the oxide scale is filtered out, and the spray water is extracted and recycled for reuse; and the function of the jet-type descaling drive roller of the present invention is not only to drive the wide-adjustable hot rolling roller to move, but also to remove scales, and its third function is to cool itself and the wide-adjustable hot rolling roller, thereby improving the working environment of the wide-adjustable hot rolling roller and the jet-type descaling drive roller, and avoiding subsequent failures caused by their own high temperature; in summary, the present invention can achieve the purpose of efficiently cooling the rollers, improve the working environment of the rollers, and efficiently remove the oxide scale on the surface of the strip, while collecting the oxide scale and spray water, avoiding the accumulation of oxide scale and interfering with the normal operation of the equipment, and the present invention collects, filters and recycles excess spray water. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0017] In the attached picture:

[0018] Figure 1 It is a structural schematic diagram of an embodiment of the present invention;

[0019] Figure 2 It is a schematic structural diagram of the connection of multiple groups of hot rolling rollers with adjustable width and multiple groups of jet descaling drive rollers according to an embodiment of the present invention;

[0020] Figure 3 It is a schematic structural diagram of a group of hot rolling rollers with adjustable width and a group of jet descaling drive rollers connected in accordance with an embodiment of the present invention;

[0021] Figure 4 It is a schematic structural diagram of a roller in a pair of hot rolling rollers with adjustable width according to an embodiment of the present invention;

[0022] Figure 5 It is a schematic structural diagram of a descaling driving roller in a pair of jet-type descaling driving rollers according to an embodiment of the present invention;

[0023] Figure 6 This is an axial structural cross-sectional view of a descaling driving roller according to an embodiment of the present invention;

[0024] Figure 7 A radial structural cross-sectional view of a descaling driving roller according to an embodiment of the present invention;

[0025] Figure 8 This is a structural front view of a descaling driving roller according to an embodiment of the present invention;

[0026] Fig. 9 A partial structural front view of another descaling driving roller according to an embodiment of the present invention;

[0027] Fig.10 This is a schematic diagram of the structure of a collecting tank according to an embodiment of the present invention;

[0028] Fig.11 It is a schematic diagram of the partial structure of the collecting tank according to an embodiment of the present invention;

[0029] Fig.12 This is a schematic diagram of the structure of the connection between the connecting pipe and the cyclone filter mechanism according to an embodiment of the present invention;

[0030] Fig.13 It is a structural schematic diagram of a cyclonic filter mechanism according to an embodiment of the present invention;

[0031] Fig.14 It is an axial structural cross-sectional view of a cyclone filter mechanism according to an embodiment of the present invention;

[0032] Fig.15 This is a schematic diagram of the structure of the cyclone filter mechanism after disassembly according to an embodiment of the present invention;

[0033] Fig.16 It is a schematic diagram of the structure of a cyclone filter cover in a cyclone filter mechanism according to an embodiment of the present invention.

[0034] Labeled parts: 100-wide adjustable hot rolling roller, 101-first transmission wheel, 102-transmission chain, 103-roller, 104-rolling channel, 105-shaft, 106-connecting seat, 107-connecting sleeve, 108-limiting sleeve, 109-connecting bolt, 110-first half buckle sleeve, 111-second half buckle sleeve, 112-connecting ear, 200-jet descaling drive roller, 201- second transmission wheel, 202-scaling drive roller, 203-jet groove, 2031-contraction part, 2032-expansion part, 204-first fixed seat, 205-rotating shaft, 206-second fixed seat, 207-shaft tube, 208-spray hole, 209-distribution pipe, 210-transition pipe, 211-installation pipe, 212-jet hole, 2121-first hole body, 2122-second hole body, 213- Partition rib, 214-first chamber, 215-second chamber, 300-collection tank, 301-outer baffle, 302-inner guide plate, 303-guide groove, 304-guide plate, 400-connecting pipe, 401-tube body, 402-first joint, 403-second joint, 404-first control valve, 500-cyclone filter mechanism, 501-inlet cover, 502-connecting pipe, 503-first connecting Connecting edge, 504-first conduit, 505-threaded pipe, 506-swirl filter, 5061-filter body, 5062-swirl strip, 5063-rotating ring, 5064-swirl blade, 507-receiving tube, 508-reducing tube, 509-liquid outlet pipe, 510-backwashing joint, 511-second connecting edge, 512-third control valve, 513-second conduit, 514-second control valve. DETAILED DESCRIPTION

[0035] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0036] The present invention discloses a rare earth iron-based strip hot rolling descaling device, such as Figure 1-16As shown, it includes a plurality of width-adjustable hot rolling rollers 100 arranged in sequence and at intervals along the moving direction of the ingot, at least one group of these width-adjustable hot rolling rollers 100 is driven by the jet-type descaling driving roller 200, and these width-adjustable hot rolling rollers 100 are connected by transmission. Among them, the width-adjustable hot rolling rollers 100 are respectively provided with collecting troughs 300 on both sides, and a material guide platform is provided below these width-adjustable hot rolling rollers 100, which is upwardly protruding in the middle and obliquely extends downward to the notches of the two collecting troughs 300 on both sides. The material guide platform is connected to the machine body, and each collecting trough 300 is connected to the cyclone filtering mechanism 500 through a connecting pipe 400. The oxide scale detached from the upper surface of the strip enters the two collecting grooves 300 through the two sides of the strip, and the oxide scale detached from the lower surface of the strip falls on the material guide platform, and then enters the two collecting grooves 300 through the inclined surface of the material guide platform (whose cross section is an inverted V shape). The working principle and advantages of the present invention are as follows: the present invention drives the corresponding width-adjustable hot rolling roller pair 100 to move through the jet-type descaling driving roller pair 200, and the width-adjustable hot rolling roller pair 100 is transmitted and connected to each other, so that the width-adjustable hot rolling roller pair 100 moves synchronously, thereby realizing continuous rolling and pushing forward of the ingot, so that the ingot is gradually rolled and thinned, and at the same time, under the width limit of the width-adjustable hot rolling roller pair 100, the width of the strip is limited, thereby achieving the expected width; in the process of rolling the strip, the present invention sprays high-pressure spray water through the jet-type descaling driving roller pair 200, and flushes the loosened or fallen oxide scale on the strip, and then flushes the oxide scale into the collecting tank 300, and then enters the cyclone filter mechanism 500 through the connecting pipe 400, the cyclone filter mechanism 500 is connected to the water pump, and the mixture of the oxide scale and the spray water passes through The cyclone filter mechanism 500 filters so that the oxide scale is filtered out, and the spray water is extracted and recycled for reuse; and the function of the jet descaling drive roller 200 of the present invention is not only to drive the width-adjustable hot rolling roller 100 to move, but also to remove scales, and its third function is to cool itself and the width-adjustable hot rolling roller 100, thereby improving the working environment of the width-adjustable hot rolling roller 100 and the jet descaling drive roller 200, and avoiding subsequent failures caused by their own high temperature; in summary, the present invention can achieve the purpose of efficiently cooling the rolling roller 103, improve the working environment of the rolling roller 103, and efficiently remove the oxide scale on the surface of the strip, while collecting the oxide scale and spray water, avoiding the accumulation of oxide scale and interfering with the normal operation of the equipment, and the present invention collects, filters and recycles excess spray water.

[0037] As a preferred embodiment of the present invention, Figure 2-4As shown, the width-adjustable hot rolling roller pair 100 includes two rollers 103 arranged opposite to each other up and down, and a rolling channel 104 is formed between the two rollers 103. Among them, a first transmission wheel 101 is installed on a shaft rod 105 at at least one end of each roller 103. In order to ensure the stability of transmission, the first transmission wheels 101 are respectively installed on the shaft rods 105 at both ends of the rollers 103 in this embodiment, and the first transmission wheels 101 on the upper rollers 103 of all the width-adjustable hot rolling roller pairs 100 are connected by a transmission chain 102, and the first transmission wheels 101 on the lower rollers 103 are connected by another transmission chain 102. In this way, when one or more width-adjustable hot rolling roller pairs 100 are performing rolling operations, the remaining width-adjustable hot rolling roller pairs 100 are synchronously driven by the transmission chain 102, thereby realizing continuous rolling of the strip. In order to adjust the width of the hot-rolled strip to the expected value, the present embodiment adopts the following measures: width adjusting members are respectively installed at both ends of each roller 103, wherein the width adjusting members are mounted on the roller 103 and connected to the shaft 105 of the roller 103, the strip is rolled by the width-adjustable hot-rolling roller pair 100 and passes through the rolling channel 104, and the two sides of the strip are restricted between the two width adjusting members on the two sides of the roller 103. Moreover, the present embodiment can adjust the position of the width adjusting member mounted on the roller 103 so that the spacing between the two width adjusting members can be adjusted, thereby realizing the rolling of strips of different widths.

[0038] As a preferred embodiment of the present invention, the width adjusting member can be divided into two implementation modes. The first one is as follows: Figure 3 As shown, the width adjustment member includes a connecting seat 106 and a limiting sleeve 108, wherein a connecting sleeve 107 is constructed on the connecting seat 106, and the connecting sleeve 107 is sleeved on the shaft 105. The limiting sleeve 108 is installed on the side of the connecting seat 106 close to the end of the roller 103 through a plurality of connecting bolts 109, and the limiting sleeve 108 is sleeved on the end of the roller 103. The connecting sleeve 107 of this embodiment is fixed to the shaft 105 by a positioning bolt threadedly connected thereto, and when it is necessary to adjust the spacing between the two width adjustment members, the positioning bolt is loosened, and then the position of the limiting sleeve 108 sleeved on the roller 103 is adjusted so that the gap between the two limiting sleeves 108 is adjusted. After the adjustment is completed, the positioning bolt is tightened so that the positioning bolt is locked on the shaft 105. When it is necessary to roll strips of different thicknesses, the spacing between the two rollers 103 is adjusted, and then the limiting sleeve 108 of the corresponding model is replaced so that the corresponding limiting sleeve 108 limits the strip of corresponding thickness. The second type, such as Figure 4As shown, the width adjustment member includes two buckling units, which are buckled with each other and assembled on the corresponding ends of the roller 103. The buckling unit includes a first half buckle sleeve 110 and a second half buckle sleeve 111 connected to each other, wherein the first half buckle sleeve 110 and the second half buckle sleeve 111 are respectively assembled on the roller 103 and the shaft 105, and connecting ears 112 are respectively constructed on both sides of the second half buckle sleeve 111, and the corresponding connecting ears 112 on the two second half buckle sleeves 111 are connected by bolts. When it is necessary to adjust the spacing between the two width adjustment members, the bolts on the connecting ears 112 are loosened, and then the positions of the two first half buckle sleeves 110 on the roller 103 are adjusted so that the gap between the two width adjustment members is adjusted. After the adjustment is completed, the bolts on the connecting ears 112 are tightened so that the two second half buckle sleeves 111 are buckled on the shaft 105. When strips of different thicknesses need to be rolled, the distance between the two rollers 103 is adjusted, and then two buckling units of corresponding models are replaced to achieve the restriction of strips of corresponding thicknesses.

[0039] As a preferred embodiment of the present invention, Figure 3 , 5-8, the jet-type descaling drive roller pair 200 includes two descaling drive rollers 202 arranged up and down. Each of the descaling drive rollers 202 is rolled on the corresponding roller 103, thereby driving the corresponding roller 103 to rotate and rolling the strip. In this embodiment, a plurality of jet grooves 203 are constructed on the outer peripheral surface of each descaling drive roller 202, and a plurality of spray holes 208 are opened at the bottom of each jet groove 203, and these spray holes 208 are interconnected with the assembly cavity in the descaling drive roller 202. In this embodiment, a distribution pipe 209 is installed in the assembly cavity, and a plurality of jet holes 212 are opened on the distribution pipe 209. Each descaling drive roller 202 is rotatably connected to the machine body, and the distribution pipe 209 is fixedly connected to the machine body. A second transmission wheel 201 is respectively installed at one axial end of the two descaling drive rollers 202, and the second transmission wheel 201 is driven to rotate by a motor, so that the second transmission wheel 201 drives the descaling drive roller 202 to rotate, and then drives the above-mentioned roller 103 to rotate, and at the same time, the spray water enters the distribution pipe 209. When the descaling drive roller 202 rotates until the spray hole 208 on it intersects or overlaps with the jet hole 212, the spray water passes through the spray hole 208 and then passes through the jet groove 203 and is obliquely sprayed onto the surface of the strip; and in the process of relative rotation between the descaling drive roller 202 and the distribution pipe 209, the spray water is sprayed on the surface of the strip in the form of pulses, thereby improving the removal efficiency of the oxide scale. Moreover, part of the spray water is sprayed on the roller 103 to cool down the roller 103. The spray water cools down the descaling drive roller 202 in the process of flowing through the descaling drive roller 202. The descaling drive roller 202 is in direct contact with the roller 103, and the roller 103 is further cooled by heat transfer, so that the descaling drive roller 202 and the roller 103 are in a non-high-temperature environment, thereby improving the working environment of hot rolling and descaling and reducing the failure rate.

[0040] As a preferred embodiment of the present invention, in order to facilitate replacement and change the spray range of the spray water, the measures taken are as follows: Figure 6-7As shown, the descaling driving roller 202 includes a plurality of mutually spliced ​​sub-roller bodies, and the cross section of each sub-roller body is a fan-shaped structure. These sub-roller bodies are spliced ​​and connected together, and the two ends of the jet groove 203 on each sub-roller body are connected to the corresponding ends of the jet groove 203 on the corresponding sub-roller body. The calibers of the jet grooves 203 on the mutually spliced ​​sub-roller bodies can be the same or different. When the calibers are the same, the range of the spray or jet is consistent; when the calibers are different, the range of the spray or jet changes intermittently with the rotation, so that the spray water is in the form of intermittent sweeping on the surface of the strip, that is, the spray width changes intermittently, so that the oxide scale on the surface of the strip is gradually expelled into the collection tanks 300 on both sides. This embodiment can also use spray holes 208 with different apertures, that is, the apertures of the spray holes 208 in the jet groove 203 of each sub-roller body are inconsistent, and the spray holes 208 with large apertures and the spray holes 208 with small apertures are arranged at intervals, which also plays a role in adjusting a certain spray range, and the effect is relatively weak; however, with the jet grooves 203 of different apertures, the effect will be greatly improved. In this embodiment, a first fixed seat 204 and a second fixed seat 206 are respectively arranged at both axial ends of the descaling drive roller 202, and the first fixed seat 204 is connected and fixed to one end of each sub-roller body, and the second fixed seat 206 is connected and fixed to the other end of each sub-roller body. Among them, a rotating shaft 205 and a shaft tube 207 are respectively constructed on the first fixed seat 204 and the second fixed seat 206, and the rotating shaft 205 and the shaft tube 207 are respectively connected to the body for rotation, and the second transmission wheel 201 is installed on the rotating shaft 205. In order to realize inclined spraying of the strip parts at the front and rear positions of the width-adjustable hot-rolled roller pair 100, a partition rib 213 is constructed in the distribution pipe 209 in this embodiment. The partition rib 213 divides the inner cavity of the distribution pipe 209 into a first chamber 214 and a second chamber 215. Two groups of jet holes 212 are respectively opened on the distribution pipe 209. The two groups of jet holes 212 include a group of first hole bodies 2121 and a group of second hole bodies 2122, wherein the first hole bodies 2121 are arranged at intervals along the axial direction of the descaling drive roller 202, and the second hole bodies 2122 are also arranged at intervals along the axial direction of the descaling drive roller 202, and each first hole body 2121 extends obliquely downward, and the second hole bodies 2122 and the first hole bodies 2121 are symmetrically arranged on the distribution pipe 209 with the partition rib 213 as the dividing rib. In this embodiment, the same medium, i.e., pressurized water or pressurized gas, can be introduced into the first chamber 214 and the second chamber 215, or different medium, i.e., pressurized water and pressurized gas, can be introduced into the first chamber 214 and the second chamber 215, respectively. The pressurized water can wash down the large oxide scale at the front end of the roller 103, and the pressurized gas can blow down the small oxide scale at the rear end of the roller 103. Generally, in order to avoid dust flying, the medium is spray water.In this embodiment, a trumpet-shaped transition pipe 210 is configured at one end of the distribution pipe 209. The large diameter end of the transition pipe 210 is connected to the distribution pipe 209, and the small diameter end of the transition pipe 210 is connected to the mounting pipe 211. The mounting pipe 211 is connected and fixed to the body. The inner wall of the connection between the second fixing seat 206 and the shaft pipe 207 is configured in a trumpet-shaped form that matches the transition pipe 210, thereby limiting the movement of the transition pipe 210 and making the installation more stable.

[0041] As a preferred embodiment of the present invention, in order to intermittently increase or decrease the spraying range of the spray water, thereby facilitating the smooth and efficient removal of the oxide scale from the surface of the strip, the measures taken are as follows: Figure 8 As shown, the jet groove 203 includes annular grooves arranged at intervals along the axial direction of the descaling driving roller 202, and each annular groove includes a contraction portion 2031 and an expansion portion 2032 which are alternately connected in sequence along the circumference of the descaling driving roller 202. The diameter of the contraction portion 2031 is smaller than the diameter of the expansion portion 2032, and the connection between the contraction portion 2031 and the expansion portion 2032 is smoothly transitioned. In this way, the spray range of the spray water discharged from the contraction portion 2031 through the spray hole 208 is reduced, and the spray range of the spray water discharged from the expansion portion 2032 through the spray hole 208 is increased. In the process of alternating changes, the oxide scale on the surface of the strip is smoothly separated from the strip and enters the collecting tank 300.

[0042] As a preferred embodiment of the present invention, in order to facilitate the spray water to gradually drive the oxide scale on the surface of the strip from the middle to both sides and enter the collecting tank 300, the measures taken are as follows: Fig. 9 As shown, the jet groove 203 includes two spiral grooves, which are relatively constructed on the descaling driving roller 202, and the two spiral grooves have opposite rotation directions. Each spiral groove extends along the axial direction of the descaling driving roller 202 and is connected to another spiral groove. In this way, when the descaling driving roller 202 is driven to rotate, the spray water ejected in the form of a spiral drives the oxide scale to move to both sides, thereby allowing the oxide scale to smoothly enter the collection tank 300. In addition, the spray water is generally ejected from one side of the distribution pipe 209, that is, the jet holes 212 are arranged in a row, thereby ensuring that the spray water is in the form of driving outward to remove the oxide scale from the strip.

[0043] As a preferred embodiment of the present invention, Figure 1 , 10-11, the collecting trough 300 includes an outer baffle plate 301 and an inner guide plate 302 which are arranged opposite to each other and connected at the lower ends. A guide trough 303 is formed between the two, and the lower part of the guide trough 303 is inclined downward and extends to the connecting pipe 400, so that the spray water and oxide scale in the guide trough 303 can be smoothly moved to the connecting pipe 400. In this embodiment, the upper end of the outer baffle plate 301 is higher than the upper end of the inner guide plate 302, so that the splashed spray water and oxide scale are prevented from escaping to the external area. In this embodiment, an inclined guide plate 304 is constructed at the upper end of the inner guide plate 302, and the upper end of the guide plate 304 is continuous with the edge of the material guide platform, and the lower end of the guide plate 304 is inclined to extend into the upper part of the guide trough 303, thereby facilitating the spray water and oxide scale on the material guide platform to smoothly pass through the guide plate 304 into the guide trough 303. As shown Fig.12 As shown, the connecting pipe 400 of this embodiment includes a tube body 401, on which a first joint 402 and a second joint 403 are constructed, wherein the first joint 402 and the second joint 403 are respectively connected to the corresponding guide groove 303, and a first control valve 404 is installed at one end of the tube body 401 connected to the cyclone filter mechanism 500.

[0044] As a preferred embodiment of the present invention, Figure 12-16As shown, the cyclone filter mechanism 500 includes an inlet cover 501, a cyclone filter cover 506 and a liquid outlet pipe 509. The inlet cover 501 is a trumpet-shaped structure, the small diameter end of the inlet cover 501 is connected to the connecting pipe 400 through a connecting pipe 502, and the large diameter end of the inlet cover 501 is connected to the liquid outlet pipe 509. Specifically, a first connecting edge 503 is configured at the large diameter end of the inlet cover 501, and a reducer 508 and a receiving pipe 507 are sequentially configured at one end of the liquid outlet pipe 509 close to the inlet cover 501. The small diameter end of the reducer 508 is connected to the liquid outlet pipe 509, and the large diameter end of the reducer 508 is connected to the receiving pipe 507. The receiving pipe 507 is configured with a second connecting edge 511 at one end away from the reducer 508, and the first connecting edge 503 and the second connecting edge 511 are detachably connected. The swirl filter 506 of this embodiment is assembled in the inlet cover 501, and the swirl filter 506 is adapted to the shape of the inlet cover 501. The swirl filter 506 includes a filter cover body 5061, and a plurality of swirl strips 5062 are constructed on the filter cover body 5061. In this embodiment, a rotating ring 5063 is provided at the large diameter end of the swirl filter 506, and the rotating ring 5063 is connected to the large diameter end of the swirl filter 506 through a plurality of swirl blades 5064, and the rotating ring 5063 is rotatably connected to the inner wall of the large diameter end of the inlet cover 501, and when the second connecting edge 511 is attached to and connected with the first connecting edge 503, the second connecting edge 511 closes the annular space where the swirl blades 5064 are located. In this embodiment, the connecting pipe 502 and the liquid outlet pipe 509 are connected by at least one bypass backwashing pipe system, wherein the bypass backwashing pipe system includes a first conduit 504 and a second conduit 513, wherein the first conduit 504 is connected to the connecting pipe 502, and the second conduit 513 is connected to the liquid outlet pipe 509, and the first conduit 504 and the second conduit 513 are connected at their mutually close ends by a threaded pipe 505, and a second control valve 514 is installed on the second conduit 513, and a third control valve 512 is installed on the receiving pipe 507 and on a side close to the inlet hood 501. In this embodiment, a backwashing joint 510 is constructed on a side of the liquid outlet pipe 509 away from the inlet hood 501, and the connection point between the second conduit 513 and the liquid outlet pipe 509 is located between the third control valve 512 and the backwashing joint 510. The working principle and advantages of this embodiment are as follows: the liquid outlet pipe 509 is connected to the water pump through a telescopic tube, and the water pump sucks the spray water and oxide scale in the collection tank 300 into the inlet cover 501 through the connecting pipe 400. Driven by the water flow, the swirl filter 506 rotates and isolates the oxide scale. The spray water enters the liquid outlet pipe 509 through the swirl filter 506, and the isolated oxide scale gradually accumulates at the large diameter end of the swirl filter 506 under the guidance of the swirl bar 5062, thereby extending the service life of the swirl filter 506 and avoiding the additional cleaning workload caused by frequent blockage of the swirl filter 506.When the cyclone filter 506 is blocked, in order not to affect normal work, the second control valve 514 can be opened to allow the spray water carrying the oxide scale to enter the liquid outlet pipe 509 through the bypass backwash pipe system. When the production is suspended and the cyclone filter 506 is flushed, the second control valve 514 and the third control valve 512 are opened, the first control valve 404 is closed, and the threaded pipe 505 is rotated to expose the end of the first conduit 504 or the end of the second conduit 513, and the flushing water enters the liquid outlet pipe 509 through the backwash joint 510, and enters the filter body 5061 through the reducer 508 and the receiving pipe 507 in turn, and then flushes the cyclone filter 506, so that the oxide scale accumulated on the outer surface of the cyclone filter 506 is flushed down and discharged through the end of the first conduit 504. When the flushing is completed, the threaded pipe 505, the first control valve 404, the second control valve 514 and the third control valve 512 are reset, and the backwash joint 510 is closed. When the cyclone filter 506 needs to be thoroughly cleaned, the threaded sleeve is rotated and the first connecting edge 503 and the second connecting edge 511 are separated. At this time, the threaded sleeve is still in the state of connecting the first conduit 504 and the second conduit 513. Then, the first control valve 404 and the third control valve 512 are closed, and the second control valve 514 is opened. The flushing water enters the connecting pipe 502 through the bypass backwashing pipe system, and then enters the inlet cover 501. The flushing water drives the cyclone filter 506 to rotate, so that the oxide scale accumulated on the surface of the cyclone filter 506 gradually passes through the gap between the cyclone blades 5064 under the cyclone, and then is discharged through the gap between the first connecting edge 503 and the second connecting edge 511. When the flushing is completed, the components are returned to their positions, and the backwashing joint 510 is closed. In this embodiment, the oxide scale that enters the cyclone filter mechanism 500 along with the spray water is mostly debris, and the oxide scale in flaky form is generally deposited in the collection tank 300, and it is necessary to regularly remove the deposited oxide scale.

[0045] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A rare earth iron-based strip hot rolling descaling equipment, Features: The invention comprises a plurality of width-adjustable hot rolling rollers arranged in sequence and at intervals along the moving direction of the ingot, at least one group of the width-adjustable hot rolling rollers is driven by a jet-type descaling driving roller, and the width-adjustable hot rolling rollers are connected by transmission; collecting tanks are respectively arranged on both sides of the width-adjustable hot rolling rollers, and each of the collecting tanks is connected to a cyclone filtering mechanism through a connecting pipe; The width-adjustable hot rolling roller pair comprises two rollers arranged opposite to each other up and down, a rolling channel is formed between the two rollers, width adjusting pieces are respectively installed at both ends of each roller, the width adjusting pieces are sleeved on the rollers and connected to the shafts of the rollers, the strip is rolled by the width-adjustable hot rolling roller pair and passes through the rolling channel, and the two sides of the strip are limited between the two width adjusting pieces on the two sides of the rollers; The jet-type descaling driving roller pair comprises two descaling driving rollers arranged one above the other, each of the descaling driving rollers is pressed against a corresponding roller, a plurality of jet grooves are constructed on the outer circumference of each descaling driving roller, a plurality of spray holes connected to the assembly cavity in the descaling driving roller are opened at the bottom of each of the jet grooves; a distribution pipe is installed in the assembly cavity, and a plurality of jet holes are opened on the distribution pipe; each of the descaling driving rollers is rotatably connected to the machine body, and the distribution pipe is fixedly connected to the machine body; The descaling driving roller includes a plurality of sub-roller bodies spliced ​​to each other, and the cross-section of each sub-roller body is a fan-shaped structure; these sub-roller bodies are spliced ​​and connected to each other, and the two ends of the jet groove on each sub-roller body are connected to the corresponding ends of the jet groove on the corresponding sub-roller body; a first fixed seat and a second fixed seat are respectively arranged at the axial ends of the descaling driving roller, and the first fixed seat is connected and fixed to one end of each sub-roller body, and the second fixed seat is connected and fixed to the other end of each sub-roller body, and a rotating shaft and a shaft tube are respectively constructed on the first fixed seat and the second fixed seat, and the rotating shaft and the shaft tube are respectively connected to the machine body for rotation.

2. A rare earth iron-based strip hot rolling descaling equipment according to claim 1, Features: The width adjusting member comprises a connecting seat installed on the shaft rod through a connecting sleeve, and a limiting sleeve is detachably installed on one side of the connecting seat close to the end of the roller, and the limiting sleeve is sleeved on the end of the roller.

3. A rare earth iron-based strip hot rolling descaling equipment according to claim 1, Features: The width adjustment member includes two buckling units that are buckled together and assembled on the end of the roller, each of the buckling units includes a first half buckle sleeve and a second half buckle sleeve that are connected to each other and respectively assembled on the roller and the shaft rod, and connecting ears are respectively constructed on both sides of the second half buckle sleeve, and the corresponding connecting ears on the two second half buckle sleeves are connected by bolts.

4. The rare earth iron-based strip hot rolling descaling equipment according to claim 1, Features: The jet groove includes annular grooves arranged at intervals along the axial direction of the descaling driving roller, and each of the annular grooves includes a contraction portion and an expansion portion which are alternately connected in sequence along the circumference of the descaling driving roller. The diameter of the contraction portion is smaller than that of the expansion portion, and the connection between the contraction portion and the expansion portion has a smooth transition.

5. The rare earth iron-based strip hot rolling descaling equipment according to claim 1, Features: The jet groove comprises spiral grooves which are relatively constructed on the descaling driving roller, and the rotation directions of the two spiral grooves are opposite. Each spiral groove extends in a spiral along the axial direction of the descaling driving roller and is connected with another spiral groove.

6. The rare earth iron-based strip hot rolling descaling equipment according to claim 1, Features: The collecting trough comprises an outer baffle plate and an inner guide plate which are arranged opposite to each other and connected at the lower ends, a guide trough is formed between the two, and the lower part of the guide trough is inclined downward and extends to the connecting pipe, the upper end of the outer baffle plate is higher than the upper end of the inner guide plate, an inclined guide plate is constructed at the upper end of the inner guide plate, and the lower end of the guide plate is inclined to extend into the upper part of the guide trough; the connecting pipe comprises a pipe body having a first joint and a second joint, the first joint and the second joint are respectively connected to the corresponding guide trough, and a first control valve is installed at one end of the pipe body connected to the cyclone filtering mechanism.

7. The rare earth iron-based strip hot rolling descaling equipment according to claim 1, Features: The cyclone filter mechanism comprises an inlet cover whose small diameter end is connected to a connecting pipe through a connecting pipe, the large diameter end of the inlet cover is connected to a liquid outlet pipe, a cyclone filter cover adapted to the shape of the inlet cover is installed in the inlet cover, a plurality of cyclone strips are constructed on the cyclone filter cover, and the large diameter end of the cyclone filter cover is connected to a rotating ring through a plurality of cyclone blades, and the rotating ring is rotatably connected to the inner wall of the large diameter end of the inlet cover; the connecting pipe and the liquid outlet pipe are connected by at least one bypass backwashing pipe system; The bypass backwashing pipe system includes a first conduit and a second conduit which are respectively connected to the connecting pipe and the liquid outlet pipe. The first conduit and the second conduit are connected at their mutually close ends via a threaded pipe, and a second control valve is installed on the second conduit. A third control valve is installed on a side of the liquid outlet pipe close to the flow inlet hood. A backwashing joint is constructed on a side of the liquid outlet pipe away from the flow inlet hood. The connection point between the second conduit and the liquid outlet pipe is located between the third control valve and the backwashing joint.

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