Integrated plate blank high-pressure water descaling cover

Abstract

The utility model discloses an integrated plate blank high-pressure water descaling cover, belongs to the technical field of steel rolling equipment, and is used for sealing high-pressure water and oxide scale splashed in the descaling process of a plate blank. According to the technical scheme, a main frame plate, a top plate and side plates form a cuboid plate frame body with the lower end open, lifting lugs are fixed to the upper surface of the top plate, the lower edges of the two side plates are located on the two sides of a roller way, upper descaling header sliding grooves which are vertically opposite are formed in the left side and the right side of the plate faces of the two side plates respectively, and the upper descaling header sliding grooves are opened in the lower ends of the side plates; the two upper descaling headers are embedded in the two sets of opposite upper descaling header sliding grooves respectively, the two ends of the two flow guide grooves are fixedly connected with the inner walls of the two side plates respectively, water retaining chains are arranged at the outer ends of the two main frame plates respectively, the outer sides of the lower ends of the two side plates are supported by cover body supporting plates respectively, and the lower ends of the cover body supporting plates are welded to the descaling roller bed base. The sealing device is convenient and fast to disassemble and assemble and good in sealing performance, and the maintenance work efficiency of the descaling machine roller way and the descaling collecting pipe is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a high pressure water descaling cover for closing the high pressure water and oxide scale splashed in the descaling process of slab, belongs to the technical field of rolling equipment. BACKGROUND

[0002] The high pressure water descaling machine is the key equipment of the plate rolling production line. When the slab with qualified heating temperature is conveyed to the descaling machine through the roller way, the high pressure descaling water injection valve is opened, the high pressure water with about 16MPa-25MPa is shot from the nozzle of the upper and lower descaling header, the oxide scale is broken and separated from the steel base body by the impact force and pushing force of the high pressure water, and the oxide scale is washed away in the set direction by the high pressure water.

[0003] The high pressure water descaling machine is mainly composed of a descaling roller way base, a descaling roller way, an upper and lower descaling header, an upper header height adjusting device and a descaling cover. The descaling cover mainly functions to close the high pressure water and the oxide scale splashed in the descaling process of the slab, prevent the high pressure water and the oxide scale from splashing and hurting people and polluting the environment, and tightly shield the descaling roller way and the descaling header during the installation of the descaling cover on site.

[0004] The traditional descaling cover has a large and complex structure, and is usually installed on the descaling machine roller way base in the mode of flat rubber sealing and bolt fastening. The descaling roller way and the descaling header installed in the descaling cover are subjected to the high temperature baking of the billet, the high pressure descaling water and the splashing and washing of the oxide scale for a long time, and thus inevitably have faults. Once the faults occur, the descaling cover needs to be removed for replacement and maintenance, and it takes more than 10 hours to remove and install the traditional descaling cover once, which often causes long-time production interruption.

[0005] The descaling cover of the large descaling machine designed at home and abroad at present has a complex structure and is fixedly installed, which cannot well satisfy the convenience of equipment maintenance and repair. In addition, the upper descaling header usually needs a height adjustment range of 200-500mm, and the sliding fit scheme and the sealing scheme between the upper descaling header and the descaling cover have serious defects, such as blockage failure due to rust and scale accumulation, poor sealing performance, and failure of the height adjustment function of the upper header, which cannot well satisfy the needs of on-site use.

[0006] Therefore, it is necessary to newly optimize the descaling cover of the traditional high pressure water descaling machine. CONTENT OF THE UTILITY MODEL

[0007] The utility model solves the technical problem to provide a integrated slab high pressure water descaling cover, the structure of the descaling cover is compact, anti-impact, convenient and fast to disassemble and assemble, and has good sealing performance, which can realize simple disassembly and assembly of the descaling cover and facilitate the inspection and maintenance of the descaling machine roller way and the descaling header.

[0008] The technical solution for solving the above technical problems is:

[0009] The integrated slab high-pressure water descaling cover comprises a main frame plate, a top plate, a side plate, a lifting lug, a flow guide groove, a water baffle chain frame plate, a water baffle chain and a cover support plate. The main frame plate, the top plate and the side plate are rectangular plates. Two main frame plates are vertically parallel to each other. The top plate is connected to the upper end of the two main frame plates. Two side plates are fixedly connected to the two sides of the two main frame plates. The main frame plate, the top plate and the side plate form a rectangular cuboid plate frame body with an open lower end. The lifting lug is fixed to the upper surface of the top plate. The lower edges of the two side plates are located on both sides of the roller way. The plate surfaces of the two side plates have vertically opposite upper descaling header sliding grooves on the left and right sides. The upper descaling header sliding grooves are open at the lower end of the side plate. The width of the upper descaling header sliding groove matches the diameter of the upper descaling header. Two upper descaling headers are respectively embedded in two groups of opposite upper descaling header sliding grooves. The upper descaling header and the upper descaling header sliding groove are in sliding fit. Two flow guide grooves are respectively located on one side of the two upper descaling header sliding grooves. The two ends of the two flow guide grooves are respectively fixedly connected to the inner walls of the two side plates. The lower end openings of the two flow guide grooves are opposite to the water spraying directions of the two upper descaling headers. The lower ends of the two side plates respectively have cover support plates. The cover support plates are rectangular plates. The lower ends of the cover support plates are vertically welded to the descaling roller way base. The cover support plates have a plurality of vertical insertion grooves. The insertion groove openings are respectively opposite to the lower end of the main frame plate. The lower end of the main frame plate is welded with a bayonet. The bayonet is N-shaped. The bayonet is respectively clamped with the insertion groove.

[0010] The lower edges of the two side plates of the integrated slab high-pressure water descaling cover extend below the center of the roller way. The lower ends of the two side plates respectively have circular arc grooves corresponding to the roll diameter positions of each roller way. The diameters of the circular arc grooves match the roll diameters of the roller way. The circular arc grooves are respectively sleeved on the roller way.

[0011] The flow guide groove of the integrated slab high-pressure water descaling cover is composed of two rectangular steel plates and a semicircular arc plate. The circular arc convex surface of the semicircular arc plate faces upward. Two rectangular steel plates are respectively welded at both ends of the semicircular arc plate to form an inverted U-shaped member. One rectangular steel plate is vertical, and the other rectangular steel plate is inclined. The inclined rectangular steel plate is located on the outside of the upper descaling header sliding groove and opposite to the water spraying direction of the upper descaling header.

[0012] The outer ends of the two main frame plates of the integrated slab high-pressure water descaling cover respectively have parallel water baffle chain frame plates. The water baffle chain frame plates of the outer ends of the two main frame plates respectively have a plurality of blocks. The plurality of water baffle chain frame plates are parallel. The two ends of the water baffle chain frame plate are respectively fixedly connected to the side plate. The lower part of the water baffle chain frame plate and the side plate is connected to the bottom plate. The upper end of the water baffle chain is installed above the bottom plate. The lower part of the water baffle chain penetrates through the bottom plate and is opposite to the roller way. The plate surfaces of the two main frame plates and the two water baffle chain frame plates are opposite to the gap between the two roller shafts of the roller way.

[0013] The integrated slab high-pressure water descaling cover has long rectangular openings in the lower parts of the two main frame plates and the two water-blocking chain frame plates, which are matched with the running channel of the roller and the billet, and a plurality of inter-roller guide plates are fixed on the upper edges of the long rectangular openings of the two main frame plates and the two water-blocking chain frame plates, respectively, and are sequentially and spaced arranged along the upper edges of the long rectangular openings, the plate surface of the inter-roller guide plate is parallel to the side plate, and the upper end of the inter-roller guide plate is 25-35 mm lower than the upper end of the roller shaft of the roller.

[0014] The integrated slab high-pressure water descaling cover has circular arc grooves on the upper end of the plate surface of the cover body support plate, which are matched with the roll diameter of each roller, and the circular arc grooves are respectively sleeved on the lower part of the roller, the upper end of the plate surface of the cover body support plate is higher than the descaling roller surface, and the upper part of the plate surface of the cover body support plate overlaps with the lower part of the plate surface of the side plate in the horizontal direction.

[0015] The integrated slab high-pressure water descaling cover further has a chute bottom sealing plate and a chute side sealing plate, the chute bottom sealing plate is a rectangular plate, the lower part of the chute bottom sealing plate is welded on the descaling roller base, the upper end of the chute bottom sealing plate is opposite to the lower end opening of the upper descaling header chute on the side plate, the width of the chute bottom sealing plate is smaller than the width of the upper descaling header chute, the upper end of the chute bottom sealing plate is embedded in the upper descaling header chute, the chute bottom sealing plate is in sliding fit with the upper descaling header chute, the chute side sealing plate is a rectangular plate, the chute side sealing plate has a circular hole sleeved on the upper descaling header, the width of the chute side sealing plate is greater than the width of the upper descaling header chute, the chute side sealing plate covers the outside of the upper descaling header chute of the side plate, nuts are welded on the outer wall of the upper descaling header of the outside of the chute side sealing plate, the front end of the jackscrew is abutted on the outer wall of the chute side sealing plate through the nuts, and the jackscrew is in abutment connection with the side plate,

[0016] The integrated slab high-pressure water descaling cover has U-shaped sealing pieces on the upper end of the cover body support plate, the U-shaped sealing piece is a rectangular plate, the upper end of the rectangular plate has a vertical bent edge, the lower part of the rectangular plate has circular arc grooves on the two sides, the diameter of the circular arc groove is matched with the roll diameter of the roller, the circular arc grooves are respectively sleeved on the upper part of the roller, a square steel block is welded on the back side of the plate surface between the two circular arc grooves, the width of the steel block is matched with the upper descaling header chute of the side plate, four U-shaped sealing pieces are respectively placed at the positions of the two upper descaling header chutes of the two side plates, the bent edge of the upper end of the plate surface of the U-shaped sealing piece is pressed on the upper end of the cover body support plate, the plate surface of the U-shaped sealing piece is tightly attached to the front surface of the cover body support plate, and the steel block of the U-shaped sealing piece is embedded in the upper descaling header chute of the side plate.

[0017] The utility model discloses the beneficial effect is:

[0018] The main frame plate, the top plate and the side plate adopt the overall box structure, can be hoisted through the lifting lug, greatly facilitate the maintenance operation; the side plate has the function of limiting the deviation of the blank, and can be used for high-pressure water and iron oxide skin of the closed roller way; the side plate sliding groove is used for sliding of the upper descaling header, and ensures that the descaling cover can be smoothly disassembled; the water retaining chain frame plate and the water retaining chain can prevent the high-pressure water and the iron skin from overflowing in the horizontal direction; the cover body support plate can support and fix the descaling cover, and can also play a sealing role; the sliding groove bottom sealing plate and the sliding groove side sealing plate can seal the sliding groove of the side plate, and prevent the high-pressure water and the iron oxide skin from flowing out from the sliding groove.

[0019] The descaling cover and the upper descaling header adopt the separated design new idea, the guide plate between the roller ways and the descaling cover are made as a whole, and only one hoisting (about 10 minutes) is needed to remove the descaling cover and overhaul the descaling roller way and the descaling header.

[0020] The device can save 8 hours of time for processing accidents each time after use, and brings good benefits to enterprises. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a structural schematic view of the utility model;

[0022] Figure 2 is Figure 1 a side view of the utility model;

[0023] Figure 3 is an assembly schematic view of the main frame plate, the lifting lug and the roller-to-roller guide plate;

[0024] Figure 4 is a structural schematic view of the cover body support plate;

[0025] Figure 5 is an installation schematic view of the sliding groove side sealing, the sliding groove bottom sealing and the U-shaped sealing element;

[0026] Figure 6 is Figure 2 a local enlarged schematic view of the utility model.

[0027] Marked as follows in the figure: roller bed 1, billet 2, lower descaling header 3, upper descaling header 4, descaling roller bed base 5, main frame plate 6, top plate 7, side plate 8, lifting lug 9, water retaining chain frame plate 10, bottom plate 11, water retaining chain 12, cover body support plate 13, flow guide groove 14, upper descaling header chute 15, rectangular opening 16, insertion slot 17, bayonet 18, circular arc groove 19, inter-roller guide plate 20, chute bottom sealing plate 21, chute side sealing plate 22, nut 23, top screw 24, U-shaped sealing element 25. DETAILED DESCRIPTION

[0028] The utility model discloses a main frame plate 6, top plate 7, side plate 8, lifting lug 9, water retaining chain frame plate 10, water retaining chain 12, cover body support plate 13, flow guide groove 14, inter-roller guide plate 20, chute bottom sealing plate 21, chute side sealing plate 22, nut 23, top screw 24, U-shaped sealing element 25 are formed.

[0029] Figure 1 , 2 It is shown that the main frame plate 6, top plate 7 and side plate 8 are rectangular plates respectively, two main frame plates 6 are vertically parallel to each other, the top plate 7 is connected to the upper end of the two main frame plates 6, and the two side plates 8 are fixedly connected to the two sides of the two main frame plates 6, and the main frame plate 6, top plate 7 and side plate 8 form a rectangular cuboid plate frame body with an open lower end, and the lifting lug 9 is fixed to the upper surface of the top plate 7.

[0030] Figure 1 , 2 It is shown that the outer ends of the two main frame plates 6 are respectively provided with parallel water retaining chain frame plates 10, the two ends of the water retaining chain frame plate 10 are fixedly connected with the side plate 8, and the lower part of the water retaining chain frame plate 10 and the side plate 8 is connected with the bottom plate 11. The water retaining chain frame plate 10 has a plurality of water retaining chain frame plates 10, and the plurality of water retaining chain frame plates 10 are connected in parallel between the side plate 8 and the bottom plate 11. The water retaining chain frame plate 10 is provided with a plurality of water retaining chains 12, and the upper end of the water retaining chain 12 is installed above the bottom plate 11. The lower part of the water retaining chain 12 penetrates through the bottom plate 11 and is opposite to the roller bed 1. The water retaining chain frame plate 10 and the water retaining chain 12 can prevent high-pressure water and iron sheet from overflowing in the horizontal direction.

[0031] Figure 1 , 2 It is shown that the lower edges of the two side plates 8 extend below the center of the roller bed, and the lower ends of the two side plates 8 correspond to the roll diameter positions of each roller bed 1 and are respectively provided with circular arc grooves 19, the diameters of the circular arc grooves 19 match the roll diameters of the roller bed 1, and the circular arc grooves 12 are respectively sleeved above the roller bed 1. The side plate 8 has the function of limiting the deviation of the billet by the conventional descaling cover roller bed side guide plate, and the lower edge of the side plate 8 extends below the center of the descaling roller bed, which is used for closing high-pressure water and iron scale.

[0032] Figure 1 , 4As shown, the cover support plate 13 is a rectangular plate, and the plate upper end of the cover support plate 13 is provided with a circular arc groove 19 corresponding to the roll diameter position of each roller 1, the radius R of the circular arc groove 19 is 1-2 mm larger than the roll diameter position r of the descaling roller, the circular arc groove 19 is respectively sleeved on the lower part of the roller 1, and the top surface of the circular arc groove 19 is 90-120 mm higher than the descaling roller surface and horizontally overlaps the descaling cover side plate 8 by about 300 mm.

[0033] Figure 1 、 4 As shown, the lower end of the cover support plate 13 is vertically welded on the descaling roller base 5, and the cover support plate 13 is provided with a plurality of vertical insertion slots 17, the insertion slots 17 are respectively opposite to the lower end of the main frame plate 6 and the water baffle chain frame plate 10, the lower end of the main frame plate 6 and the water baffle chain frame plate 10 is welded with a bayonet 18, the bayonet 18 is N-shaped, the bayonet 18 is respectively clamped with the insertion slot 17, and the width of the insertion slot 17 is 5-8 mm larger than the thickness of the frame plate, so that the bayonet 18 of each frame plate of the descaling cover can be smoothly positioned. The cover support plate 13 can support the installation and fixation of the descaling cover, and can also play a sealing role.

[0034] Figure 1 、 2 As shown, the lower edge of the two side plates 8 is located on both sides of the roller 1, and the plate surface of the two side plates 8 is respectively provided with vertically opposite upper descaling header sliding grooves 15 on the left and right sides, the upper descaling header sliding grooves 15 are opened at the lower end of the side plate 8, the width of the upper descaling header sliding groove 15 matches the diameter of the upper descaling header 4, and the two upper descaling headers 4 are respectively embedded in the two groups of opposite upper descaling header sliding grooves 15. The upper descaling header 4 and the upper descaling header sliding groove 15 are in sliding fit. When the descaling cover is installed and lifted, the upper descaling header 4 can enter or slide out from the lower end of the upper descaling header sliding groove 15, and the descaling cover is not restricted by the upper descaling header 4, and can be lifted without obstruction.

[0035] Figure 1 As shown, the two flow guide grooves 14 are respectively located on one side of the two upper descaling header sliding grooves 15, the flow guide groove 14 and the side plate 8 are welded, the top is welded with the top plate 7 through the reinforcing rib plate, the left side of the flow guide groove 14 is arranged at 90° with a lead hammer, and the right side of the rectangular plate is arranged at an inclination of 20° according to the incident angle of high-pressure water, which can completely collect the high-pressure water sprayed by the lower descaling header 3 and reflected by the upper descaling header 4. The high-pressure water is vertically sprayed downward after being guided, thereby restricting the horizontal spraying kinetic energy of the high-pressure water to the inlet and outlet of the descaling machine.

[0036] Figure 1 、 3The lower part of the two main frame plates 6 and the lower part of the two water baffle chain frame plates 10 are respectively provided with horizontal rectangular openings 16 matched with the running channel of the roller table 1 and the billet 2, and the plate surface of the two main frame plates 6 and the two water baffle chain frame plates 10 is opposite to the gap between the two roller shafts of the roller table 1. A plurality of inter-roller guide plates 20 are fixed to the upper edge of the rectangular opening 16 of the two main frame plates 6 and the two water baffle chain frame plates 10 respectively, the inter-roller guide plates 20 are fan-shaped, and the plurality of inter-roller guide plates 20 are sequentially and spaced arranged along the upper edge of the rectangular opening 16, the distance between the inter-roller guide plates 20 is 300-350 mm in the width direction, the plate surface of the inter-roller guide plate 20 is parallel to the side plate 8, and the upper end of the inter-roller guide plate 20 is lower than the upper end of the roller shaft of the roller table 1 by 25-35 mm. The inter-roller guide plate 20 is used to prevent the billet head from being buckled and overturned and guide the billet to run smoothly on the roller table.

[0037] Figure 1 、 2 , 5, 6 show that in order to prevent high-pressure water and iron sheet from splashing outside the descaling cover, the descaling cover is also provided with sealing structures of the chute bottom sealing plate 21 and the chute side sealing plate 22.

[0038] The chute bottom sealing plate 21 is used to seal the lower end opening of the upper descaling header chute 15 of the side plate 8. The chute bottom sealing plate 21 is a rectangular plate, the lower part of the chute bottom sealing plate 21 is welded on the descaling roller table base 5, the chute bottom sealing plate 21 is respectively opposite to the position of the upper descaling header chute 15 on the side plate 8, the width of the chute bottom sealing plate 21 is smaller than the opening of the upper descaling header chute 15 by 4-6 mm, the upper end of the chute bottom sealing plate 21 is embedded in the upper descaling header chute 15, and the chute bottom sealing plate 21 is in sliding fit with the upper descaling header chute 15.

[0039] The chute side sealing plate 22 is used to seal the plane of the upper descaling header chute 15 of the side plate 8. The chute side sealing plate 22 is a rectangular plate, and a round hole of the chute side sealing plate 22 is sleeved on the upper descaling header 4 and can slide along the axis of the upper descaling header 4. The nut 23 is welded on the wall of the upper descaling header 4 outside the chute side sealing plate 22, the top wire 24 is abutted on the outer wall of the chute side sealing plate 22 through the front end of the nut 23, the top wire 24 is adjusted to make the chute side sealing plate 22 close to the side plate 8 of the descaling cover, and a gap of 1-2 mm is kept, and dry oil is applied in the gap for lubrication. When the upper descaling header 4 is adjusted in height, the chute side sealing plate 22 moves with the upper descaling header 4. The width of the chute side sealing plate 22 is greater than the width of the upper descaling header chute 15, the chute side sealing plate 22 covers the outside of the upper descaling header chute 15 of the side plate 8, and the width of the chute side sealing plate 22 is wider than the upper descaling header chute 15 by 60-80 mm on both sides, so that the gap between the upper descaling header chute 15 and the upper descaling header 4 is completely shielded.

[0040] Figure 1 、 2, 5, 6 shows that the sealing structure also has a U-shaped sealing element, the U-shaped sealing element 10 is welded by two 30mm-thick steel plates and one 80mm*80mm square steel plate, and a 80mm cavity is left in the middle. The U-shaped sealing element 25 is a rectangular plate, the upper end of the rectangular plate has a vertical bent edge, the lower part of the rectangular plate has two circular arc grooves 19 on the two sides, the diameter of the circular arc grooves 19 matches the diameter of the roller 1, the circular arc grooves 19 are respectively sleeved on the upper side of the roller 1, the rear side of the plate between the two circular arc grooves 19 is welded with a square steel block, the width of the steel block matches the upper descaling header chute 15 of the side plate 8, four U-shaped sealing elements 25 are respectively arranged at the positions of the two upper descaling header chutes 15 of the two side plates 8, the upper end bent edge of the plate of the U-shaped sealing element 25 is pressed on the upper end of the cover support plate 13, the plate of the U-shaped sealing element 25 is tightly attached to the front of the cover support plate 13, and the steel block of the U-shaped sealing element 25 is embedded in the upper descaling header chute 15 of the side plate 8.

[0041] The use process of the utility model is as follows:

[0042] Before installing the descaling cover, the top screw 24 outside the sliding groove side sealing plate 22 is loosened, the sliding groove side sealing plate 22 is slid outward, the distance between the two corresponding side sealing plates 22 is greater than the distance between the side plates 8 by 30-40mm, the crown block hook is used to lift the descaling cover through the lifting lug 9, the lower end of the two side plates 8 of the descaling cover is opposite to the upper end of the two cover support plates 13, the plurality of circular arc grooves 19 of the side plate 8 are opposite to the plurality of rollers 1, the main frame plate 6 of the descaling cover is opposite to the insertion slot 17 of the cover support plate 13, and the opening at the lower end of the upper descaling header chute 15 of the side plate 8 is opposite to the upper end of the sliding groove bottom sealing plate 22.

[0043] When the descaling cover needs to be disassembled, only the top screw 24 of the sliding groove side sealing plate 22 is loosened, the descaling cover is not blocked in the plumb direction, the high-pressure water descaling cover can be lifted away as a whole, the descaling roller and the descaling header are completely opened, and the point inspection and maintenance operation are greatly facilitated.

[0044] One embodiment of the utility model is as follows: (3500mm medium plate production line)

[0045] The length of the main frame plate 6 is 2280 mm, the width is 3140 mm, and the thickness is 50 mm;

[0046] The length of the top plate 7 is 2420 mm, the width is 31500 mm, and the thickness is 50 mm;

[0047] The length of the side plate 8 is 1998 mm, the width is 3150 mm, and the thickness is 50 mm;

[0048] The length of the flow guide groove 14 is 2420 mm, the width is 555 mm, and the thickness is 30 mm;

[0049] The length of the water baffle chain frame plate 10 is 1600 mm, the width is 1260 mm, and the thickness is 50 mm;

[0050] The diameter of the water baffle chain 12 is φ16 mm, and the length is 570 mm;

[0051] The length of the cover support plate 13 is 6848 mm, the width is 950 mm, and the thickness is 50 mm;

[0052] The length of the upper descaling header chute 15 is 1320 mm, and the width is 200 mm (matched with a φ168 mm descaling header);

[0053] The length of the rectangular opening 16 is 2420 mm, and the width is 970 mm;

[0054] The length of the slot 17 is 380 mm, and the width is 70 mm;

[0055] The length of the inter-roller guide plate 20 is 448 mm, the width is 280 mm, and the thickness is 50 mm;

[0056] The length of the chute bottom sealing plate 21 is 1100 mm, the width is 196 mm, and the thickness is 50 mm;

[0057] The length of the chute side sealing plate 22 is 1400 mm, the width is 360 mm, and the thickness is 30 mm;

[0058] The length of the U-shaped sealing element 25 is 1465 mm, the width is 330 mm, and the thickness is 140 mm.

Claims

1. An integrated slab high pressure water descaling hood, characterized by: It includes main frame plate (6), top plate (7), side plate (8), lifting lug (9), flow guide groove (14), cover support plate (13), main frame plate (6), top plate (7) and side plate (8) are rectangular plates, two main frame plates (6) are vertically parallel to each other, the top plate (7) is connected to the upper end of the two main frame plates (6), and the two side plates (8) are fixedly connected to the two sides of the two main frame plates (6), the main frame plate (6), the top plate (7) and the side plate (8) form an open rectangular cuboid plate frame body at the lower end, the lifting lug (9) is fixed to the upper surface of the top plate (7), the lower edges of the two side plates (8) are located on both sides of the roller way (1), the plate surfaces of the two side plates (8) are respectively provided with vertically opposite upper descaling header sliding grooves (15) on the left and right sides, the upper descaling header sliding grooves (15) are open at the lower end of the side plate (8), the width of the upper descaling header sliding groove (15) matches the diameter of the upper descaling header (4), the two upper descaling headers (4) are respectively embedded in the two groups of opposite upper descaling header sliding grooves (15), the upper descaling header (4) and the upper descaling header sliding groove (15) are in sliding fit, the two flow guide grooves (14) are respectively located on one side of the two upper descaling header sliding grooves (15), the two ends of the two flow guide grooves (14) are respectively fixedly connected with the inner walls of the two side plates (8), the lower end openings of the two flow guide grooves (14) are opposite to the water spraying directions of the two upper descaling headers (4), the lower end outer sides of the two side plates (8) are respectively provided with cover support plates (13), the cover support plates (13) are rectangular plates, the lower ends of the cover support plates (13) are vertically welded on the descaling roller way base (5), the cover support plates (13) are provided with a plurality of vertical insertion grooves (17), the insertion groove (17) openings are respectively opposite to the lower ends of the main frame plates (6), the lower ends of the main frame plates (6) are welded with bayonets (18), the bayonets (18) are N-shaped, and the bayonets (18) are respectively clamped with the insertion grooves (17).

2. The integrated slab high-pressure water descaler hood of claim 1, wherein: The lower edges of the two side plates (8) extend below the center of the roller way (1), the lower ends of the two side plates (8) correspond to the roller diameter positions of each roller way (1) and are respectively provided with circular arc grooves (19), the diameters of the circular arc grooves (19) match the roller diameters of the roller way (1), and the circular arc grooves (19) are respectively sleeved on the roller way (1) above.

3. The integrated slab high-pressure water descaler hood of claim 1, wherein: The flow guide groove (14) is composed of two rectangular steel plates and a semicircular arc-shaped plate, the circular arc convex surface of the semicircular arc-shaped plate faces upward, the two rectangular steel plates are respectively welded at the two ends of the semicircular arc-shaped plate to form an inverted U-shaped member, one rectangular steel plate is vertical, and the other rectangular steel plate is inclined, and the inclined rectangular steel plate is located on the outer side of the upper descaling header sliding groove (15) and opposite to the water spraying direction of the upper descaling header (4).

4. The integrated slab high-pressure water descaler hood of claim 1, wherein: The outer ends of the two main frame plates (6) are respectively provided with parallel water retaining chain frame plates (10), the water retaining chain frame plates (10) at the outer ends of the two main frame plates (6) are respectively provided with a plurality of water retaining chain frame plates (10), the plurality of water retaining chain frame plates (10) are parallel, the two ends of the water retaining chain frame plate (10) are respectively fixedly connected with the side plates (8), the lower parts of the water retaining chain frame plate (10) and the side plate (8) are connected with the bottom plate (11), the upper end of the water retaining chain (12) is installed above the bottom plate (11), the lower part of the water retaining chain (12) penetrates through the bottom plate (11) and is opposite to the roller (1), the plate surfaces of the two main frame plates (6) and the two water retaining chain frame plates (10) are opposite to the gap between the two roller shafts of the roller (1).

5. The integrated slab high pressure water descaler hood of claim 1, wherein: The lower parts of the two main frame plates (6) and the two water retaining chain frame plates (10) are respectively provided with horizontal rectangular openings (16), the rectangular openings (16) are matched with the running channels of the roller (1) and the billet (2), the upper edges of the rectangular openings (16) of the two main frame plates (6) and the two water retaining chain frame plates (10) are respectively fixedly provided with a plurality of inter-roller guide plates (20), the plurality of inter-roller guide plates (20) are sequentially and spacedly arranged along the upper edges of the rectangular openings (16), the plate surfaces of the inter-roller guide plates (20) are parallel to the side plates (8), and the upper ends of the inter-roller guide plates (20) are lower than the upper ends of the roller shafts of the roller (1) by 25-35 mm.

6. The integrated slab high-pressure water descaler hood of claim 1, wherein: The upper end of the plate surface of the cover body supporting plate (13) is respectively provided with a circular arc groove (19) corresponding to the position of the roller diameter of each roller (1), the diameter of the circular arc groove (19) is matched with the roller diameter of the roller (1), the circular arc groove (19) is respectively sleeved on the lower part of the roller (1), the upper end of the plate surface of the cover body supporting plate (13) is higher than the descaling roller surface, and the upper part of the plate surface of the cover body supporting plate (13) overlaps with the lower part of the plate surface of the side plate (8) in the horizontal direction.

7. The integrated slab high-pressure water descaler hood of claim 1, wherein: It also has a chute bottom sealing plate (21) and a chute side sealing plate (22), the chute bottom sealing plate (21) is a rectangular plate, the lower part of the chute bottom sealing plate (21) is welded on the descaling roller base (5), the upper end of the chute bottom sealing plate (21) is opposite to the lower end opening of the upper descaling header chute (15) on the side plate (8), the width of the chute bottom sealing plate (21) is smaller than the width of the upper descaling header chute (15), the upper end of the chute bottom sealing plate (21) is embedded in the upper descaling header chute (15), the chute bottom sealing plate (21) is in sliding fit with the upper descaling header chute (15), the chute side sealing plate (22) is a rectangular plate, the chute side sealing plate (22) is provided with a circular hole sleeved on the upper descaling header (4), the width of the chute side sealing plate (22) is greater than the width of the upper descaling header chute (15), the chute side sealing plate (22) covers the outside of the upper descaling header chute (15) of the side plate (8), a nut (23) is welded on the outer wall of the upper descaling header (4) outside the chute side sealing plate (22), the front end of the jackscrew (24) is abutted on the outer wall of the chute side sealing plate (22) through the nut (23), and the jackscrew (24) is tightly connected with the side plate (8).

8. The integrated slab high-pressure water descaling hood according to claim 1, characterized in that: The upper end of the cover support plate (13) has a U-shaped sealing element (25), the U-shaped sealing element (25) is a rectangular plate, the upper end of the rectangular plate has a vertical bent edge, the lower part of the rectangular plate has two circular arc grooves (19) on the two sides respectively, the diameter of the circular arc groove (19) matches the roll diameter of the roller table (1), the circular arc groove (19) is sleeved on the upper roller table (1) respectively, the back side of the plate surface between the two circular arc grooves (19) is welded with a square steel block, the width of the steel block matches the upper descaling header chute (15) of the side plate (8), four U-shaped sealing elements (25) are respectively placed at the positions of the two upper descaling header chutes (15) of the two side plates (8), the upper end bent edge of the plate surface of the U-shaped sealing element (25) is pressed on the upper end of the cover support plate (13), the plate surface of the U-shaped sealing element (25) is tightly attached to the front surface of the cover support plate (13), and the steel block of the U-shaped sealing element (25) is embedded in the upper descaling header chute (15) of the side plate (8).

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