131results about "Cooling beds" patented technology

A rolling method for reducing a carbide network rating of high-carbon chromium bearing steel, sequentially comprising: billet heating, descaling, rough rolling, intermediate rolling, controlled rolling, intermediate material segmentation, finish rolling, controlled cooling, and cooling on a cooling bed. By improving the rolling process and using a "segmentation before cooling" method to adjust the rolling procedure, the problems that the temperature is too low due to water quenching after rolling, the hardness of a rolled material is high, and normal operation of a shearing device cannot be guaranteed are solved, and the effect of reducing the carbide network rating is achieved, thereby avoiding the additional work procedures and costs caused by the non-compliant carbide network of the rolled material.

The invention relates to the technical field of steel industry, and discloses a multi-specification self-adaptive temperature control rolling process in a bar rolling process, which comprises the following steps: S1, a blank pretreatment stage, S2, an intelligent heating stage, S3, a high-pressure water descaling stage, S4, a multi-pass rolling stage, S5, on-line size monitoring, S6, a post-rolling controlled cooling stage and S7, a finishing stage. The production change time is shortened, on the basis of a specification-temperature-roll gap correlation model, automatic matching of phi 20-100 mm full-specification parameters is achieved, the production change time is shortened to be within 15 minutes (reduced by 60% or above compared with a traditional process), automatic switching of equipment parameters such as an MES system correlation rolling plan, a water cooling box and descaling pressure is achieved, manual adjustment errors are avoided, the multi-specification production qualification rate is increased to 99.5%, and the production efficiency is improved. According to the scheme, the temperature control precision is improved, the product performance is optimized, the three-section temperature of the heating furnace is controlled through the fuzzy PID algorithm, and the bearing steel heating temperature equalization time is shortened by 30%.

The invention relates to the technical field of angle steel production, and particularly discloses an automatic angle steel machining production line which comprises a heating mechanism, a feeding mechanism and a discharging mechanism. The forming mechanism is used for rolling the blank and rolling the blank with the rectangular section into the angle steel with the L-shaped section; the shearing mechanism is used for cutting off the formed angle steel; the cooling mechanism is used for intermittently conveying the cut angle steel; and the overturning mechanism is used for overturning the angle steel in the conveying process. According to the angle steel production line, the working procedures of heating, forming, shearing, cooling, overturning and the like are integrated, full-process automation of angle steel production is achieved, the problems of low efficiency and high manual dependence degree caused by traditional sectional type production are solved, the production efficiency is improved, and the labor intensity is reduced.

The emergency supporting device is characterized in that supporting frames are symmetrically and vertically arranged at the left side end and the right side end of a main shaft, the supporting frames at the left side end and the right side end are connected through reinforcing ribs located at the bottom ends of the supporting frames, and sliding grooves are symmetrically formed in the corresponding end faces of the supporting frames at the left side and the right side respectively; a supporting seat is arranged in the sliding groove, the supporting seat is in sliding fit with the supporting frame, an adjusting bottom plate is arranged at the stopping end of the bottom end of the sliding groove, through holes are formed in the middle of the transverse end of the sliding groove, nuts are connected to the through holes, jackscrews are arranged in the nuts, and the top ends of the nuts abut against the bottom end of the supporting seat; the supporting wheels are connected to the vertical ends of the left side and the right side in the U-shaped end of the supporting seat correspondingly, the outer side circumferences of the supporting wheels abut against the outer side circumference of the main shaft, when the cold bed movable tooth main shaft bearing seat breaks down, an emergency supporting device is provided to support the movable tooth main shaft, and meanwhile the supporting seat height adjusting device can adjust the height of the movable tooth main shaft. And the fault requirements of spindles with different heights can be met.

The invention provides a cooling bed for reinforcing steel bar machining, belongs to the technical field of reinforcing steel bar machining, and solves the technical problems that an existing cooling bed is poor in combination flexibility when reinforcing steel bars are machined and used, and the reinforcing steel bar cooling effect and the discharging uniformity of the cooled reinforcing steel bars cannot be ensured. The cooling bed for steel bar machining comprises a rack and a feeding barrel fixedly connected to one side of the rack, a material rotating roller is rotationally connected into the feeding barrel and driven by a driving motor, the driving motor is located at one end of the feeding barrel, and the material rotating roller is in transmission connection with a transmission rod. According to the steel bar cooling bed, the multiple conveying units are arranged in the rack in a staggered mode, under the action that at least one movable rod of each conveying unit is connected with the driving main rod, the driving motor can synchronously drive the material rotating roller and the conveying teeth to rotate, and the steel bar conveying effect of the cooling bed is ensured; the cooling bed can be flexibly combined and arranged according to the field size, and the use flexibility of the cooling bed is improved.

The invention discloses a preparation method of a high-strength titanium alloy cold-rolled pipe with the wall thickness of 1.0 mm-2. 0mm. The method comprises the following steps: 1, directly rolling a TC16G titanium alloy cast ingot to obtain a bar billet; 2, carrying out cross piercing and rapid cooling on the bar blank to obtain a pipe blank; 3, rounding the pipe blank and treating the inner surface and the outer surface of the pipe blank; and fourthly, the TC16G titanium alloy cold-rolled pipe is obtained through multi-pass cold rolling. The high-strength TC16G titanium alloy cold-rolled pipe with the wall thickness of 1.0 mm-2. 0mm is successfully prepared through the procedures of direct rolling, cross piercing, rapid cooling, rounding, inner and outer surface treatment and multi-pass cold rolling of the TC16G titanium alloy cast ingot, the quality of the high-strength TC16G titanium alloy cold-rolled pipe is guaranteed, meanwhile, the preparation efficiency and the yield are improved, and the preparation process is simple, easy to implement, suitable for industrial production and suitable for industrial production. The method is suitable for the technical field of titanium alloy preparation.

The embodiment of the invention provides a cooling bed movable rack automatic centering system and method.The system comprises a plurality of rack adjusting units, a movable detection device and a central controller, the central controller is in communication connection with the rack adjusting units and the movable detection device, and the rack adjusting units are arranged on a cooling bed movable beam; the movement detection device is used for detecting information of a movable rack on the rack adjusting unit, and the central controller is used for receiving the information of the movable rack, analyzing the dislocation state of the movable rack and controlling the rack adjusting unit to adjust the movable rack when the movable rack is dislocated. The rack dislocation can be automatically identified and accurate centering can be completed under the condition of non-stop or transient stop, so that production accidents caused by rack dislocation are fundamentally eliminated.

The invention relates to the technical field of steel production, in particular to a steel rolling material batch tracing management and control method and system. The invention provides a steel rolling material batch tracing management and control method which comprises a first management and control method and a second management and control method, and the first management and control method comprises the following steps that when the last batch of steel is conveyed to a steel receiving trolley from a cooling bed, a steel receiving trolley operator controls the steel receiving trolley to rise to a high position through a first control module and then keeps a locking state; the first control module sends an alarm signal to the second control module, and the second control module controls the first alarm lamp to be turned on. According to the steel rolling material batch tracing management and control method, confusion of previous and next batches of steel is prevented through the physical isolation function of the current batch of steel and the next batch of steel, and the situation that all material batches are confused and cannot be traced due to errors of a certain process is prevented through mutual report and confirmation between operators of the previous process and the next process.

The utility model discloses an aluminum profile heat dissipation device, which relates to the technical field of aluminum profile processing, and comprises a support frame, a bottom plate is fixedly connected in the support frame, a heat dissipation fan is fixed at the upper end of the bottom plate, the upper end of the support frame is driven by a motor to be provided with a conveying belt, the upper end of the heat dissipation fan is fixedly connected with a flow dividing cylinder, and the flow dividing cylinder is provided with a flow dividing groove. Communicated ventilation pipes are fixedly connected to the upper end and the two sides of the flow dividing cylinder, the upper ends of the ventilation pipes are communicated and connected with a cooling mechanism, and the cooling mechanism is correspondingly arranged at the lower end of the conveying belt; the utility model discloses an aluminum profile heat dissipation device. By arranging the flow dividing barrel and the cooling mechanism, the flow dividing barrel and the ventilation pipe change the blowing speed of the cooling fan, heat on the surface of the aluminum profile is rapidly dissipated, the cooling speed can be increased under the action of the refrigeration pipe, the occupied area of the cooling bed is reduced, and the cooling efficiency of the aluminum profile is improved.

The application discloses a kind of control systems of bar brake apron, it is related to automatic control technology.It includes, high position proximity switch, whether the position of apron is in high position is used to detect;If the apron is in high position, a high electrical signal is output;Low position proximity switch, whether the position of apron is in low position is used to detect;If the apron is in low position, a low electrical signal is output;Controller, the electrical signal that the high position proximity switch and low position proximity switch output is used to gather, the action of apron is controlled according to the electrical signal;And take a latch, the high potential signal of the high position proximity switch is used to set the latch operation;The initial signal of the periodic command of the apron is used to reset the latch operation.The application guarantees brake apron normal continuous action, does not cause apron next time inaction due to high signal loss, guarantees the stable order of production, effect is remarkable.

The utility model relates to the technical field of bar cooling bed equipment maintenance, in particular to an adjustable supporting frame for a bar cooling bed, which comprises a bottom plate, a lifting supporting column, a precise adjusting plate and a precise adjusting piece which are sequentially connected from bottom to top, and the lifting supporting column comprises a vertically arranged adjusting lead screw, an upper adjusting support and a lower adjusting support. The upper end of the adjusting lead screw is rotationally sleeved with the upper adjusting support, the lower end of the adjusting lead screw is rotationally sleeved with the lower adjusting support, the bottom face of the lower adjusting support is fixedly connected to the top face of the bottom plate, the top face of the upper adjusting support is fixedly connected to the bottom face of the precise adjusting plate, the precise adjusting plate is horizontally arranged, and at least three adjusting grooves are formed in the precise adjusting plate. A precise adjusting piece is arranged at the adjusting groove, can move in the adjusting groove in the horizontal direction and comprises a sliding base and an adjusting sleeve.

The utility model discloses cooling equipment for producing seamless steel tubes, which relates to the technical field of seamless steel tubes and comprises a cooling box and a tube fitting, a cooling component is mounted on the cooling box, a motor is mounted on the outer side of the cooling box, the output end of the motor is connected with a rotating shaft, and two symmetrical turntables are mounted at two ends of the rotating shaft. Mounting grooves are annularly formed in the circumferential side of the rotating disc at equal intervals, the mounting grooves in the rotating disc at the two ends of the rotating shaft correspond to each other and are semicircular, an inverted-L-shaped support is fixedly arranged on the outer side of the rotating disc at one end of each mounting groove, a guide rod is arranged on the support in a penetrating mode, and a pressing plate is fixedly installed at the bottom end of the guide rod and corresponds to the mounting grooves; and the pressing plate is connected with the bracket through a spring. According to the utility model, the mounting groove is formed in the peripheral side of the turntable, and the steel pipe can be placed into the mounting groove from the peripheral side of the turntable and is fixed by the pressing plate connected with the spring, so that the requirement on the side space of equipment is greatly reduced, and the mounting and dismounting efficiency is effectively improved.

The invention relates to a device (1) and a method for convectively cooling hot steel products, in particular hot rolled products (5) in a rolling mill. The device (1) comprises at least one cooling bed which comprises at least one first and at least one second vertically extending cooling bed plane (2, 3), wherein the cooling bed planes (2, 3) are formed by at least one transport device which has at least one vertical conveyor means (4) that is designed to receive a rolled product (5) from a first horizontal conveyor means (6), raise the rolled product via a first vertical conveyor section, and deposit the rolled product on a second horizontal conveyor means (4) via a second vertical conveyor section. The circulating transport device is arranged in a substantially closed housing (7) which comprises means for producing a flow of air and / or gas, as a cooling medium, through the volume enclosed by the housing (7) and means for recovering energy from the air flow and / or gas flow which is guided through the housing and which is loaded with heat of the rolled product.

The present invention discloses a composite skirt plate for a cooling bed, which relates to the technical field of metallurgical steel rolling equipment. The front end of the panel on the skirt plate of the present invention is opened in the middle and the composite skirt plate is movably provided with the composite skirt plate, and a lifting mechanism and a skirt plate lifting and advancing mechanism are installed inside the skirt plate body. The skirt plate lifting and advancing mechanism comprises a moving block fixedly connected to the middle of the composite skirt plate and a limiting rod fixedly connected to the skirt plate body, a limiting groove is provided in the middle of the moving block for the limiting rod to pass through, and the lifting mechanism is used to drive the moving block to perform lifting and translational movement according to the limiting groove, so that the composite skirt plate is lifted relative to the panel on the skirt plate, and the side edge of the composite skirt plate close to the skirt plate side baffle is moved to the inside of the projection range of the panel on the skirt plate. After completing the lifting and translational movement, the lifting mechanism is separated from the moving block, so that it returns to its original position under the action of gravity until the composite skirt plate and the panel on the skirt plate are coplanar. The present invention has a simple structure, is easy to implement, has strong adaptability, and can solve the problem of skirt plate hanging steel.

The utility model discloses a blanking buffer device of a steel pipe cooling bed, which relates to the technical field of steel pipe blanking auxiliary equipment and comprises a blanking arm, two sides of the blanking arm are respectively and fixedly provided with a material guiding row-up plate, the upper half part of each material guiding row-up plate is respectively provided with a first mounting port and a second mounting port, a blanking support block is rotatably mounted at the first mounting port, and the blanking support block is rotatably mounted at the second mounting port. A buffer block is rotatably mounted at the second mounting opening, a buffer structure connected with the buffer block is fixed to the lower end of the second mounting opening and comprises a U-shaped rod fixed to the lower end of the second mounting opening, a U-shaped seat is fixed to the horizontal section of the U-shaped rod, a sleeve is rotatably connected to the inner side of the U-shaped seat through a connecting pin, and a connecting rod is rotatably connected to the lower end of the buffer block; and the connecting rod is inserted into the sleeve in a sliding manner. According to the utility model, through on-line use, after the pipe body is subjected to secondary buffering, the pipe body falls stably, so that inertial impact is avoided, the use requirement of blanking of the blanking arm of the cooling bed is met, and the operation stability of equipment is improved.

The application relates to a step-by-step cooling bed which comprises a plurality of guide plates and a stand column fixed to the ground, a first bracket and a second bracket above the guide plates and spaced from the guide plates, the first bracket and the second bracket are both right-angle plates, the length directions of the two are arranged along the arrangement direction of the guide plates, a through hole for steel falling is arranged on the bottom wall of the first bracket, the outer bottom wall of the second bracket is overlapped on the inner bottom wall of the first bracket, two buffer rods, each guide plate is between the two buffer rods, the buffer rod is a telescopic piece, the first bracket is slidably connected with the telescopic end of the buffer rod and slides along the length direction of the guide plate, the second bracket is overlapped on the telescopic end of the buffer rod, and the outer bottom wall of the second bracket is hinged with the telescopic end of the buffer rod, a sliding assembly for driving the first bracket to move, and a tilting assembly for driving the side of the second bracket close to the first bracket to rotate downward. The application has the effect of reducing the adverse effect on the service life of the cooling bed.

The utility model provides a bar cooling bed heat preservation cover widening device which comprises an extending suspension beam and a widening heat preservation structure, and the widening heat preservation structure is connected to the end portion of one end of the extending suspension beam through a movable joint assembly. The end, away from the widened heat preservation structure, of the extending suspension beam is connected with an original heat preservation cover main beam of the cooling bed. The fixed end of the movable joint assembly is fixedly connected with the extending suspension beam, the movable end of the movable joint assembly is fixedly connected with the widened heat preservation structure, and the movable end of the movable joint assembly can rotate relative to the fixed end, so that the covering face of the widened heat preservation structure is always kept or approximately in a horizontal state. The heat preservation range of the cooling bed can be effectively enlarged, the cooling speed of bars on the cooling bed can be conveniently controlled, and the performance of the bars can be optimized.

The invention belongs to the technical field of bar rolling, and discloses a control method for eliminating a deformed steel bar shearing end face elbow, which comprises the following steps: S1, arranging a compression roller at an inlet of a cooling bed; s2, positions of movable teeth and static teeth of the cooling bed are calibrated; S3, the mounting height of the arrangement chain is adjusted to eliminate the height difference between the arrangement chain and the movable teeth of the cooling bed; s4, a dense arrangement roller and a tail sweeping device are arranged; a head water cooling device is mounted at the end of the cooling bed; s6, optimizing the replacement mode of the cold shear blade and the mounting structure of the front cover plate of the shear blade; through multi-link targeted control, key inducements causing the deformed steel bar shearing end face elbow are eliminated from the source, the problem of shearing end face elbow puzzling small-specification deformed steel bar production for a long time is effectively solved, the shape of the end of a finished product is regular, the packaging quality of the small-specification finished product is greatly improved, and the production cost is reduced. And the problems of disordered packaging arrangement, difficult packaging and the like caused by bends are avoided.

The utility model discloses an automatic feeding device of a hydraulic stepping type cooling bed, which comprises a cooling bed body and a conveying device arranged at the front end of the cooling bed body, and an automatic feeding device is further arranged between the cooling bed body and the conveying device at the front end of the cooling bed body. The automatic feeding device comprises a positioning end and a high-position end arranged in parallel with the positioning end, the positioning end and the high-position end arranged in parallel are arranged on a connecting platform, the connecting platform and the cooling bed body are connected in a welding or bolt mode, and the connecting platform and the cooling bed body are supported through a steel structure truss. The automatic feeding device further comprises a connecting section, the connecting section is of an arc-shaped structure, one end of the connecting section makes contact with the tail end of the conveying device, the other end of the connecting section is fixedly connected with the high-position end, and a buffering feeding space is formed between the connecting section and the high-position end.

The present invention relates to a cooling bed with the function of laminating and delaminating steel sheets, comprising a straightening grid (1), a fixed rack (2), a movable rack (5) and a conveyor chain (3). The straightening grid is connected to the fixed rack front and back, the straightening grid (1) is provided with a material receiving inclined surface (6) at the front end, a laminating groove (7) is provided at the bottom of the material receiving inclined surface (6), two or more steel sheets are stacked in the laminating groove to form a stacked steel sheet, the movable rack is used to convey the stacked steel sheet in a step-by-step manner along the tooth hooks on the straightening grid and the fixed rack toward the conveyor chain; the end of the movable rack is provided with a delaminating tooth hook (8), the delaminating tooth hook has a delaminating inclined surface, and the delaminating inclined surface is used to receive and delaminate the stacked steel sheet at the end of the fixed rack and sequentially transfer it to the conveyor chain. The cooling bed of the present application laminates flat steel sheets at the entrance to achieve the superposition of two or more flat steel sheets, delaminates the stacked flat steel sheets at the exit, and sequentially transfers the stacked flat steel sheets to the conveyor chain.

The application discloses a kind of bar finish rolling control cooling system and control cooling method, control cooling system includes the front cooling device, finish rolling entrance flying shear, finishing rolling unit, rear cooling device and finish rolling exit flying shear sequentially arranged on rolling line, the finishing rolling unit is made of multiple rolling mills in series, the front cooling device is connected with middle rolling unit rolling line before, the finish rolling exit flying shear is connected with cooling bed after, the front cooling device, rear cooling device are made of one or more cooling device;Control cooling method includes finish rolling front cooling, entrance flying shear cut head tail, finishing rolling unit rolling, finish rolling rear cooling, exit flying shear cut fixed size and cooling bed air cooling and so on process.The application can effectively reduce the cooling intensity of finish rolling exit rolling after rolling by reasonable equipment configuration and cooling process, so as to avoid the appearance of water cooling closed loop and martensite organization, and the resulting yin and yang surface and its bending phenomenon, can provide size precision high, surface quality good, temperature uniform, better microstructure and performance bar finished product.

The invention relates to the technical field of steel plate surface treatment in the metallurgical industry, and solves the problem of buckling of needle-shaped ferrite steel plates. The cross straightening anti-buckling process of the needle-shaped ferrite steel plate comprises the following steps: firstly, after being straightened for the first time, a rolled steel plate is conveyed to a first cooling bed to be subjected to stress recovery; after the next rolled steel plate is straightened for the first time, the steel plate is temporarily stored in a material waiting buffer area of the second cooling bed; then, the steel plate subjected to stress recovery is blanked and straightened for the second time and the third time, and meanwhile the steel plate in the buffer area is transferred to a first cooling bed to be subjected to stress recovery; and finally, the steel plate which is straightened for the third time is conveyed to a second cooling bed, and the steel plate on the first cooling bed is synchronously blanked, straightened for the second time and straightened for the third time and then transferred to the first cooling bed. And the steps are repeated, and cross straightening of the multiple steel plates is achieved. Through the rolling mill, the ultra-fast cooling device, the straightening machine, the first cooling bed and the second cooling bed which are arranged in sequence in cooperation with a temperature-rolling reduction parameter combination, the steel plate yield is increased.

The application discloses a control method for automatic counting of a bar cold bed steel discharging chain, and relates to an automatic control system. A first proximity switch detector is installed at the connection between the cold bed steel discharging chain and a cold bed movable rack, which is used for detecting whether there is steel in the last rack of the cold bed movable rack; if there is steel, the first proximity switch detector sends a steel coming signal to a controller; the controller counts the steel coming signal to obtain a counting signal; the controller compares the counting signal with a preset target steel branch number; and if the counting signal is equal to the target steel branch number, a cold shearing signal is sent. The application further discloses a control system for automatic counting of a bar cold bed steel discharging chain. In the application, the shearing is performed according to the maximum allowed shearing branch number without exceeding the maximum shearing capacity of the cold shearing device, so that the production rhythm is improved and the cold shearing device is not damaged.

The present application relates to a kind of wide and thick plate product circulation efficiency promotion system and process, system includes: hot cutting roller, hot cutting section, cooling bed, shear line, first plate turnover machine, detection module, shear second line, extension roller, detection module is set on shear line, by newly adding extension roller on shear second line, make shear second line form first path and second path, shear line and shear second line carry out sampling inspection to wide and thick plate, the sampling inspection wide and thick plate that flows into shear line is turned over by first plate turnover machine, it does not belong to the direct circulation of sampling inspection wide and thick plate, the wide and thick plate that flows into shear second line belongs to the sampling inspection wide and thick plate is turned over by second plate turnover machine on second path, it does not belong to the direct circulation of sampling inspection wide and thick plate by first path extension roller.This application has improved the finishing logistics efficiency of wide and thick plate, reduced the turnover frequency of wide and thick plate, thereby reduce the scratch on the surface of wide and thick plate due to plate turnover machine, avoid leading to product quality problem, and the beneficial effects of cost reduction and efficiency improvement.

The invention discloses a device and method for replacing a feeding transmission shaft of a cooling bed of a hot-rolled thick plate factory. The device comprises a slide way arranged in the direction from the mounting position of the transmission shaft to a hoisting opening. The slideway is positioned above the transmission shaft and is formed by splicing and connecting a plurality of I-shaped steel rails; at least two hand-pulled travelling cranes matched with the sliding ways are arranged on the sliding ways, and chain blocks are connected to the lower portions of the hand-pulled travelling cranes. The replacing device is reasonable in structural design, the I-shaped steel rail which is easy to obtain on site serves as a sliding way and is fixed to the cooling bed fixing beam, the feeding transmission shaft can be rapidly conveyed by being matched with a hand-pulling traveling crane (sliding) and a chain block (lifting), operation is easy and convenient, the needed workload is small, the operation process can be completed by matching the chain block with the hand-pulling traveling crane, and the replacing device is high in practicability. And the operation stability is good, namely the operation safety is good, non-manual transferring and non-contact sliding of the feeding transmission shaft can be achieved, the defects of transverse moving steel beam dismounting and manual carrying in a traditional method are overcome, and the application prospect is good.

The high-compression-ratio bar production line comprises a continuous casting machine, a straight roller way, a large-reduction rolling mill and a furnace entering roller way, the straight roller way is used for conveying square billets output by the continuous casting machine, the inlet end of the straight roller way is opposite to the continuous casting machine, the large-reduction rolling mill is arranged at the outlet end of the straight roller way, and the furnace entering roller way is used for conveying the square billets output by the continuous casting machine. The in-furnace roller way conveys the intermediate billet output by the large reduction rolling mill, the inlet end of the in-furnace roller way is opposite to the large reduction rolling mill, the outlet end of the in-furnace roller way is used for being connected with a heating furnace of the small bar production line, the rolling mill of the small bar production line is used for outputting target bars, and the section size of the intermediate billet meets the in-furnace condition of the heating furnace. The rolling compression ratio of the large-reduction rolling mill is obtained by dividing the compression ratio of the target bar by the rolling compression ratio of the small bar production line. The mode that the large reduction rolling mill is matched with the small rod production line is adopted, the product with the size larger than that of an originally-designed product of the small rod production line and the high compression ratio can be produced, the center shrinkage cavity of a casting blank can be effectively improved, and the internal quality of the product is ensured.

This invention discloses an auxiliary hydraulic system for the cooling bed of a heavy plate rolling mill and its control method, relating to the technical field of heavy plate rolling mill equipment. The system includes: a cooling bed auxiliary feeding and lifting actuator, a control circuit for the lifting cylinder of the cooling bed feeding device, an oil tank, and multiple sets of pump units, each with an identical structure. The auxiliary feeding and lifting actuator, the oil tank, and the multiple sets of pump units are respectively connected to the control circuit for the lifting cylinder of the cooling bed feeding device. In the pump units, a gear pump is connected to a synchronous AC servo motor via a coupling and a bell-shaped cover; a servo driver is connected to the synchronous AC servo motor; pressure sensors are installed on the parallel pipelines at the outlet of each pump unit, and the feedback signals from the pressure sensors can be input to the servo driver for pressure control. This invention overcomes the problems of overheating and high energy loss in existing auxiliary hydraulic systems for the cooling bed of heavy plate rolling mills.

The utility model relates to the technical field of bar wire round steel and pipe blank production equipment, in particular to a cooling bed inlet partition plate device capable of being rapidly switched. A roller type partition plate device capable of replacing a flat plate type partition plate is parallelly designed and mounted on the opposite side of the original partial flat plate type partition plate; the roller type partition plate device comprises a fixed bottom plate, a support is installed on the bottom plate, a swing arm is installed at the upper end of the support, and a roller partition plate is fixed to the outer end of the swing arm. According to the device, a roller type partition plate device capable of replacing a flat plate type partition plate is parallelly designed and installed on the opposite face of an original part of flat plate type partition plates, free switching between the flat plate type partition plate and the roller type partition plate can be easily achieved, cost is low, operation is easy, labor is saved, working efficiency is high, maintenance is convenient, and production requirements are met.

To provide a heat insulation lining, a heat insulation lining construction method, and a skid pipe which can reduce a rebound loss without deteriorating constructability upon spraying.SOLUTION: There is disclosed a heat insulation lining which covers an outer face of a cooling member and comprises a sprayed refractory layer formed by spraying a granulated substance obtained by adding moisture to a refractory raw material, a flocculant and a curing accelerator and granulating the same toward the cooling member. The granulated substance preferably has a moisture content of 5 or more to 10 pts.mass or less to 100 pts.mass of the refractory raw material in outer percentage. Further, the refractory raw material preferably includes one or more kinds selected from Al2O3, SiO2, MgO, and CaO. The grain size of the refractory raw material is preferably less than 5 mm. In the granulated substance, a contact angle evaluating the wettability of the granulated substance is preferably less than 90°.SELECTED DRAWING: Figure 1

The invention relates to a double-model steel cooling bed which comprises a fixed bed surface, the fixed bed surface is a flat bed surface formed by a plurality of first flat plates, the double-model steel cooling bed further comprises an adjustable bed surface formed by a plurality of toothed plates, each toothed plate is arranged between every two adjacent first flat plates, and each toothed plate is connected with a height adjusting unit. All the height adjusting units are arranged on the civil engineering foundation, and the height adjusting units are used for adjusting the heights of the corresponding toothed plates, so that the adjustable bed surface is located above the fixed bed surface, or the adjustable bed surface is located below the fixed bed surface. The double-model steel cooling bed is provided with the adjustable bed surface and the fixed bed surface, and the height adjusting unit is arranged to change the relative height of the adjustable bed surface, so that the purpose of bearing section steel by using the fixed bed surface or the adjustable bed surface is achieved; the arrangement of the adjustable bed surface and the fixed bed surface can meet the requirement for cooling different profile steel types.