111 results about "Flame cutting" patented technology

The invention provides a vertical position welding method for bridge steel. The vertical position welding method comprises the steps that 1, a groove is manufactured, specifically, the X-shaped groove without a truncated edge is manufactured in a vertical position mode through a flame cutting technology; and the groove is polished and derusted according to requirements. 2, preheating, wherein the bridge steel is preheated to 75 DEG C in an electric heating mode; and 3, welding, wherein solid welding wire argon-rich mixed gas shielded welding is adopted for vertical position welding. And 4, post-weld heat treatment is conducted, specifically, after welding is completed, post-heat treatment is conducted at 200-250 DEG C through a crawler-type heater, and slow cooling is conducted to the room temperature after heat preservation is conducted for 3 hours. By researching and developing a welding material and a welding process matched with the Q890qE high-strength bridge steel, the technical problem of quality of a Q890qE vertical position butt welding seam is solved. Welding forming is stable, efficiency is high, deformation is small, the appearance is good, strength and weather resistance are balanced, the service life is long, and economical efficiency and environment friendliness are both considered; the method is especially suitable for engineering scenes with strict requirements on strength, toughness and durability such as long-span bridges and alpine region bridges, and has remarkable economic advantages and social value.

The invention discloses a slag cleaning device of a numerical control flame cutting machine, which relates to the technical field of flame cutting machines and comprises a machine tool, flame cutting equipment is arranged at the upper part of the machine tool, a sword grid is fixedly mounted in the middle of the machine tool, and a cleaning mechanism is arranged at the lower part of the machine tool and is used for collecting and cleaning dropped slag. The scraping assembly comprises a dust collecting plate fixedly installed on the lower portion of the machine tool, screws are rotationally installed on the two sides of the machine tool, a driving motor is started to drive the two screws to synchronously rotate in the same direction through a synchronous belt wheel, and a sliding block limited by a sliding groove is forced to drive a scraping plate and a triangular plate to directionally move along the surface of the dust collecting plate; and the cooled slag is automatically scraped and pushed to the conveying belt, and finally the slag is conveyed out by the conveying belt in a centralized manner, so that automatic cleaning is realized, the cleaning efficiency is remarkably improved, the labor intensity and the safety risk are reduced, the cleanness of the area below the sword grid is ensured, and a guarantee is provided for continuous cutting operation.

The utility model relates to the technical field of flame cutting machines, and discloses a steel structure numerical control flame cutting machine which comprises a longitudinal guide rail and a cross beam, end beams are connected to the two ends of the cross beam, the lower ends of the end beams are connected to the longitudinal guide rail through longitudinal walking mechanisms, a transverse guide rail is arranged on one side of the cross beam, and a plurality of sliding seats are detachably installed on the transverse guide rail. Each sliding seat is connected with a cutting gun through a lifting mechanism; supporting rods are arranged at the two ends of the top of the cross beam, a sliding beam is connected between the two supporting rods, the hanging pieces are arranged on the sliding beam in a sliding mode, each hanging piece comprises a U-shaped sliding piece and a hanging part, the U-shaped sliding pieces are connected to the sliding beam in a sliding mode, the lower ends of the U-shaped sliding pieces are connected with the hanging parts through connecting rods, and each hanging part comprises at least two hanging notches. Blocking pieces are detachably arranged on the two sides of the hanging notch. According to the air supply pipe, the using amount of the hanging pieces can be reduced, the blocking pieces are detachably arranged at the hanging notches of the hanging pieces, the air supply pipe is prevented from being disengaged, and the air supply pipe can conveniently penetrate out.

The utility model relates to the field of flame cutting machines, in particular to a flame cutting machine which comprises a track and a flame cutting machine body arranged on the track in a sliding mode, supporting seats are arranged at the two ends of the track, and the supporting seats are connected with the track in a rotating mode. The supporting seat comprises a magnetic suction cup and a top plate fixed to the upper end of the magnetic suction cup, a bevel protractor is embedded in the top plate, the center of the end of the rail is rotationally connected with the circle center of the bevel protractor through a rotating shaft, and a pointer is arranged at the inner end of the rail. According to the utility model, the cutting angle of the steel plate can be controlled, auxiliary lines are prevented from being carved for many times, the cutting machine is further prevented from being pulled to linearly move on the track, a cut seam can be ensured to be flat and vertical, and the quality of a welding seam and the appearance quality can be ensured during welding processing.

The invention provides a manufacturing method of a small-spacing three-web box beam, which comprises the following steps of: S1, blanking and processing: cutting by adopting a numerical control flame and plasma cutting technology, blanking at high precision according to a design size, reserving a machining allowance and a groove form, and polishing after cutting; s2, assembling and positioning are conducted, specifically, components are assembled on the jig frame through the upside-down mounting technology, and positioning of a top plate is completed firstly; positioning an inner side web plate and a middle web plate; pre-penetrating positioning of U ribs, longitudinal beams and anchoring partition plates is sequentially completed on the middle web; and finally, positioning of the outer side web is completed. S3, bending position welding forming is conducted, specifically, a side web and a top plate are welded at a bending position; after flaw detection is qualified, middle webs and a top plate are fixed through downward welding; u-shaped ribs and longitudinal beams are welded and fixed in a bending manner; welding a bottom plate, and fixedly connecting the bottom plate with the middle web plate, the anchoring partition plate and the side web plate in a welding manner; finally, the stiffening ribs and the support base plate are welded and anchored; s4, flame cutting process allowance; and S5, sanding and coating are conducted, and manufacturing is completed. High-quality welding manufacturing is achieved, and the method is suitable for popularization.

The utility model relates to cutting device field, concretely relates to steel plate flame cutting machine, including long strip's frame, the fixed mounting of rack is used for supporting the multiple grating of cutting plate material, the rack above multiple grating is equipped with the portal frame that drives and removes along the length direction of rack by drive mechanism, the portal frame is equipped with flame cutting mechanism, the rack below multiple grating is equipped with the movable frame that drives and removes along the length direction of rack by drive assembly, the movable frame is fixedly installed with cooling water tank in, the cooling water tank is equipped with filter tray, and the bottom wall of filter tray is evenly provided with multiple filter holes, the cooling water tank is equipped with the lifting plate that drives vertical movement by telescopic part, and the lifting plate is fixedly installed with the supporting plate that is used for holding the bottom of filter tray, the filter tray is driven to go up and remove the outside of cooling water tank through supporting plate, then can take down filter tray from the top of two supporting plates and pour the slag.

An automatic slag pushing system for a large-scale cutting table, comprising a frame (1). A flame cutting machine is arranged on the upper side of the frame; a plurality of air duct partition plates (2) are transversely arranged at intervals on the lower side of the frame; the upper ends of the air duct partition plates are movably arranged on transverse connecting rods of the frame, and the lower ends of the air duct partition plates are free ends and are close to the bottom of the frame; every two adjacent air duct partition plates mate with each other to form an air duct; an air blowing device (3) and an air discharge device (4) are respectively arranged on the side walls of the frame at two ends of the air ducts; the air blowing device works in conjunction with the air discharge device to discharge fumes entering the air ducts out of the outer side of the frame; one end inside the frame is provided with a slag pushing bucket mechanism (5); the slag pushing bucket mechanism can longitudinally perform reciprocating movement along the frame; and during movement, the slag pushing bucket mechanism can push up the air duct partition plates and push waste slag to a slag outlet at the other end of the frame. In the automatic slag pushing system, separate gas exhaust is performed in separate areas, and the dust removal effect is good; and later maintenance is convenient, and the device is not overloaded, so that the service life of the device is greatly prolonged.

This application discloses a CNC flame cutting machine with improved safety, relating to the field of metal cutting technology. It includes a machine body with a gantry frame. A CNC table and a drive unit are respectively located at both ends of the gantry frame. A CNC nozzle is positioned between the CNC table and the drive unit on the gantry frame. A cutting platform for placing metal parts is located below the gantry frame on the machine body. Sliding frames are located at the bottom of both ends of the gantry frame, and the machine body has slide rails for the sliding frames to slide back and forth. A cutting torch is located at the output end of the CNC nozzle. A baffle plate is located at the end of the cutting torch near the CNC nozzle, and the baffle plate has several extended baffles inclined away from the gantry frame. This effectively controls the spread range of sparks and molten metal splashes, thereby improving the problem of sparks or molten metal splashing onto the operator or equipment surface during cutting, and enhancing the safety of the CNC flame cutting machine.

The utility model discloses a flame cutting device convenient for distance adjustment, and relates to the technical field of flame cutting devices, in particular to a flame cutting device convenient for distance adjustment, which comprises a machine tool and a cutting torch, an adjusting mechanism is arranged on the machine tool and is used for adjusting the position of the cutting torch, and the adjusting mechanism comprises a main body assembly, a flame cutting assembly and a flame cutting assembly, comprising a fixing base installed on a machine tool, a support rotationally installed on the fixing base, an installation frame installed on the support and an installation base installed at the front end of the installation frame. The execution assembly comprises a rear shell fixed in the front end of the mounting frame, a front shell rotationally mounted on the rear shell through a rotating shaft, a plurality of grooves formed in the inner wall of the front shell and distributed at equal intervals, a pin rod mounted in the rear shell in a penetrating and sliding manner, a convex rod fixed at the front end of the pin rod and matched with the grooves, and a spring mounted at one end of the pin rod in a sleeving manner; the angle of the cutting torch can be adjusted only by pressing the pin rod, and the cutting torch can be disassembled and assembled only by rotating the cylinder cover.

The invention discloses a simulation test block for ultrasonic detection and a detection method thereof, the simulation test block is formed by flame cutting blanking, pairing, welding and processing of a steel plate with the plate thickness of T60mm, and the material, shape, structure, thickness, welding groove type and welding process of the simulation test block are the same as or similar to those of an actually detected workpiece; and a reflector is arranged in the detection area on the simulation test block and comprises a transverse hole for measuring the signal-to-noise ratio and calibrating the sensitivity. The material, the shape, the structure, the thickness, the welding groove type and the welding process of the simulation test block are the same as or similar to those of an actual workpiece, and various reflecting bodies are arranged, so that various defects in an actual welding seam can be really simulated. Therefore, a detector can accurately calibrate and adjust the sensitivity of a detection instrument by using the simulation test block before detection, is familiar with signal characteristics of different defects, and can effectively reduce misjudgment and missed judgment conditions by matching with the arrangement of the transverse hole in the simulation test block.

This invention relates to the field of cutting equipment technology, specifically a dual-station robotic automatic flame cutting device, including a base and a flame cutting head. A lateral moving component is movably mounted on the top of the base, driving the lateral movement of the flame cutting head. A slag collection component collects the slag, and the slag collection frame within this component moves with the flame cutting head to collect the slag. During the movement of the slag collection frame, two torsion rods and a torsion-limiting slide bar move together, preventing the sealing flap from rotating downwards. This prevents the slag inside the slag collection frame from spilling from the bottom. When the torsion-limiting slide bar slides along the path groove into the fan-shaped groove, the gravity of the sealing flap causes the torsion rods and the torsion-limiting slide bar to rotate downwards, opening the bottom of the slag collection frame. The slag inside then falls through the bottom opening into the scooping tank, thus automatically cleaning the inside of the slag collection frame. This device is highly practical.

The utility model provides a composite anti-theft safety cabinet body which comprises an outer cabinet body plate and an inner cabinet body plate parallel to the outer cabinet body plate, and is characterized in that a partition plate is arranged between the outer cabinet body plate and the inner cabinet body plate, the partition plate is parallel to the outer cabinet body plate, and a first interlayer is formed between the partition plate and the outer cabinet body plate; second interlayers are formed between the partition plates and the inner cabinet body plates, and reinforcing ribs used for preventing drilling and composite rubber used for preventing flame cutting are arranged in the first interlayers and / or the second interlayers. The reinforcing ribs can effectively resist physical attacks such as drilling and cutting, and the composite rubber can effectively resist high-temperature flame cutting, so that the safety of the safety cabinet is improved.

The utility model discloses a protective flame cutting machine, which relates to the field of flame cutting machines and comprises a cutting machine body, a movable portal frame mounted on the cutting machine body, a cutting component mounted on the movable portal frame, a flame cutting head mounted on the cutting component and a connecting support fixedly mounted on the cutting component. The connecting support is fixedly provided with a closed protective cover, the closed protective cover is arranged on the flame cutting head in a sleeving mode at the same time, the closed protective cover is composed of a sealing cover, transparent glass, a connecting pipeline and a sealing ring, and the connecting support, the closed protective cover and the anti-drag closed structure are arranged, and meanwhile the closed protective cover is arranged on the flame cutting head in a sleeving mode; the sealing protective cover can block sparks, so that the sparks are prevented from splashing to surrounding inflammables and workers, the probability of safety accidents is further reduced, meanwhile, the sealing protective cover is matched with waste gas purification equipment, waste gas can be collected and purified, and therefore the waste gas is prevented from harming the surrounding environment and human bodies.

The utility model relates to a welding device for flame cutting machine processing, comprising: a base, on which a material placing table is arranged, the material placing table is provided with a plurality of clamping pieces, and the clamping pieces are used for fixing a weldment; a three-axis driving part is arranged on the base, a laser welding head is rotationally arranged on the three-axis driving part, and a rotating part is arranged on the three-axis driving part; and the three-axis driving part comprises an x-axis driving part, a y-axis driving part arranged on the x-axis driving part and a z-axis driving part arranged on the y-axis driving part, and a mounting table is arranged on the z-axis driving part. According to the laser welding device, through accurate control of the three-axis driving part, the laser welding head and the rotating part can achieve high-precision positioning in a three-dimensional space, and the laser welding quality is improved. And meanwhile, the welding device can adapt to the welding requirements of different angles on the weldment, and the welding flexibility and diversity are improved, so that the requirement of manual intervention is reduced, and the welding speed and the production efficiency are improved.

The present application relates to a kind of continuous casting billet flame cutting system, including cutting sliding table and flame cutting unit, cutting sliding table is used for the continuous casting billet to be cut on its movement, flame cutting unit includes cutting platform, cutting platform is provided with No. cutting trolley, follow-up clamping mechanism and No. 2 cutting trolley, follow-up clamping mechanism is used to clamp continuous casting billet and follow after continuous casting billet moves to cutting position, follow-up clamping mechanism is connected with No. cutting trolley, No. cutting trolley and No. 2 cutting trolley are connected with automatic sizing mechanism, automatic sizing mechanism is used to measure the real-time distance between No. cutting trolley and No. 2 cutting trolley, and the real-time distance is adjusted to sizing length by adjusting the position of No. 2 cutting trolley.The system of the present application can be used to cut the short sizing continuous casting billet with sizing length below 3m, even about 1.8m, the system of the present application shortens cutting time, improves production efficiency.

The invention relates to the technical field of soot blowing devices, in particular to a pulse shock wave soot blowing device capable of adjusting the combustion ratio and a using method. An oxygen source, a fuel gas source and a compressed air source are obtained from an oxygen source control device, a fuel gas source control device and a compressed air source control device which are arranged in parallel at the same time; a PLC (programmable logic controller) is arranged in a pipeline, a gas distribution adjusting module is arranged for a gas source of each pipeline, and the gas flow of oxygen, fuel gas and compressed air is in an optimal matching state in real time under the control of the PLC, so that the complete combustion theory is met, a high-oxygen detonation mode is formed, carbon deposition of equipment is reduced, the maintenance cost is low, flame cutting is prevented, and the equipment is prevented from being damaged by ultrahigh temperature; by selecting natural gas, liquefied gas, coalification gas and other fuels with better economical efficiency and cooperating with a high-oxygen deflagration mode of compressed air and oxygen, a better soot blowing effect is obtained, meanwhile, the fuel cost is reduced by 80%, and the economical efficiency is effectively improved.

The utility model relates to the field of cutting equipment, and discloses a hoisting robot flame cutting production line which comprises a base, a stand column is fixedly mounted at the top of the base, a cross beam is fixedly mounted at the top end of the stand column, a first electric guide rail is fixedly mounted at the top of the cross beam, and three first electric sliding seats are slidably mounted on the first electric guide rail; supporting beams are fixedly mounted at the tops of the three first electric sliding seats correspondingly, and robot cutting mechanisms are arranged at the bottoms of the three supporting beams correspondingly. The multi-station groove cutting device has the following advantages and effects that groove cutting operation can be conducted on different parts of a workpiece at the same time, multi-station parallel operation is achieved, the groove cutting efficiency is improved, workpieces of different sizes and different cutting requirements can be flexibly met, and the work efficiency is improved. Groove machining of workpieces in complex shapes and groove cutting tasks with different inclination angle requirements can be well completed, and the accuracy and adaptability of groove cutting are improved.

The utility model provides a UV lamp tube flame cutting device which comprises a machining base, an assembling base is arranged at one end of the upper surface of the machining base, a first motor is installed on the assembling base, the output end of the first motor penetrates through the assembling base and is fixedly provided with a three-jaw chuck, and buffering sleeves are fixedly connected to three clamping jaws of the three-jaw chuck. The translation part is installed at the bottom of the machining base, the output end of the translation part is fixed to the assembling base, and the translation part is used for driving the assembling base to move horizontally and linearly; according to the UV lamp tube flame cutting device, a glass tube fixed by a three-jaw chuck is driven to rotate through an arranged first motor, and the fixed glass tube is controlled to horizontally move and feed under the cooperation of a translation part, so that an annular cutting mark is formed on the glass tube under the cooperation of a cutting mark part and a fusing part, and then the cutting mark is fused; and the coaxial multi-flame cutting head is used for uniformly heating and fusing, so that the cutting position is not easy to crack and deform, and the cutting and forming quality of the lamp tube is ensured.

The present application belongs to the technical field of hot continuous rolling seamless steel pipe production, and discloses a pipe blank cutting system which can improve cutting efficiency and reduce labor and equipment maintenance costs. The pipe blank cutting system comprises a feeding lifting inclined rack, a single-stop feeder, an alignment roller way, a lifting and transverse moving device, a double-length roller way, a flame cutting device, a sizing device, a sizing roller way and a discharging device. The pipe blanks fall from top to bottom to the single-stop feeder through the feeding lifting inclined rack. The double-length roller way and the sizing roller way each comprise a plurality of flow roller way positions for parallel and interval accommodation of a single pipe blank. The single-stop feeder moves each pipe blank to the alignment roller way for alignment, and then moves each pipe blank to the flow roller way positions of the double-length roller way through the lifting and transverse moving device. The double-length roller way simultaneously transports each pipe blank to the corresponding roller way positions of the sizing roller way. After the pipe blanks are sized through the sizing device, the flame cutting device simultaneously cuts each pipe blank to obtain a plurality of sized pipe blanks. Each sized pipe blank is continuously transported to the discharging device through the sizing roller way for discharging.

The utility model relates to the technical field of continuous casting machines, in particular to a continuous casting machine which comprises a steel ladle, a tundish, a crystallizer, a supporting roller way, a secondary cooling section, a withdrawal and straightening machine, a flame cutting machine and a transmission roller set. Each section of spraying device comprises a spraying frame, an inner arc spraying pipe, an outer arc spraying pipe, a left side arc spraying pipe and a right side arc spraying pipe; the inner arc spraying pipe, the outer arc spraying pipe, the left side arc spraying pipe and the right side arc spraying pipe each comprise a water pipe, an air pipe, a plurality of spraying connecting pipes and a plurality of aerial fog nozzles, and a water collecting ring and a gas collecting ring are arranged at the tail end of each section of spraying device. The multi-section spraying device is adopted for full water cooling, cooling spraying pipes of all sections are vertically arranged to form independent faces, water collecting rings are arranged on all the sections respectively, automatic adjustment of independent loops of all the sections is achieved, it is guaranteed that water on all the faces of the square billet cross section is evenly distributed, cooling uniformity is guaranteed, and the casting blank quality is improved.

The present application relates to scrap steel cutting dust treatment technical field, disclose a kind of cutting dust removal equipment of scrap steel recovery, including shovel-like wall, the bottom surface in the wall is equipped with 2 first grooves of transverse arrangement and 2 second grooves of symmetrical arrangement in 2 first groove clearance, the stone for placing the scrap steel of bearing is placed in the second groove;Two groups of symmetrical arrangement guide rail assembly are installed in the first groove, the guide rail assembly is rotatably connected with the roller assembly, the roller assembly is installed with the fume hood, the fume hood is driven along guide rail assembly displacement by driver;When the fume hood deviates from the second groove, cooperate with travelling crane to hoist scrap steel into the second groove;When the fume hood is located in the second groove directly above, adapt flame cutting torch to cut scrap steel;The equipment is reliable in sealing, and smoke gas collection efficiency is high, and waste heat can be recycled, realizes dust standard discharge, operation is stable and flexible, and safety and energy saving environmental protection are excellent.

The utility model discloses a kind of anti-deformation steel structure double-end flame cutting device, it is related to double-end flame cutting device technical field, including box, first motor, guide rod, bearing sliding block and latch, the cutting drive mechanism is provided in the box top, the semi-automatic cutting mechanism includes guide rod, bearing sliding block, drive screw and bearing frame, bearing frame built-in motor provides power driving drive screw rotation, when drive screw rotates, and bearing sliding block of its screw thread connection is limited under the guide rod with it left and right freely moving function, multi-directional movement's cutting spray gun and adjustable fixture, can adapt to the cutting of multiple specifications steel structure, improve the versatility and applicability of equipment.

The application relates to the technical field of hydrogen-based welding cutting gas, in particular to hydrogen-based welding cutting gas and a preparation method thereof. The hydrogen-based welding cutting gas is prepared by adding materials such as dimanganese, propylene and liquid ethane, and is fully mixed by means of a natural gas storage tank device and an extended white steel gas pipe, so that the hydrogen-based welding cutting gas has the safety of natural gas, better environmental protection, higher oxygen flame temperature than acetylene, higher efficiency, can be used for flame cutting of various metal materials, can replace acetylene for metal welding, and can complete metal cutting and welding work by only using one kind of hydrogen-based welding cutting gas and oxygen in production work, and the gas cost is obviously reduced.

The steel plant continuous casting billet automatic cutting machine comprises an outer protection box and a flame gun, the left side and the right side of the outer protection box are each rotationally connected with a front first idler wheel and a rear first idler wheel, the back face of the outer protection box is provided with a cutting gun walking mechanism used for clamping a steel billet, and the outer protection box is internally provided with a cutting gun walking mechanism; the flame gun is installed on the cutting gun walking mechanism, the cutting gun walking mechanism can drive the flame gun to move along different arc-shaped tracks, and the utility model relates to the technical field of flame cutting machines. When the automatic cutting machine for the continuous casting billets in the steel plant is used for cutting billets with different sizes, the flame gun is driven to move through the cutting gun walking mechanism, so that a fixed distance is kept between the flame gun and the billets, the flame gun moves along an arc-shaped track, and the walking stability and precision of the flame gun are ensured; and through the special design of the flame gun, better cutting can be carried out, and especially when large-size steel billets are dealt with, the quality of notches can still be guaranteed.

The invention discloses a digital modeling method for steel continuous casting production, which comprises the following steps of: constructing a continuous casting digital model and initializing, and respectively dividing molten steel and a casting blank into a molten steel section and a casting blank section; the continuous casting process is converted into a model segment queue moving process, and molten steel segments are converted into casting blank segments after moving to a crystallizer; judging an equipment action area where each section is located, and recording equipment process parameters into the corresponding section; judging casting blank segments contained in the slabs after flame cutting, and integrating data of the casting blank segments into the corresponding slabs; and carrying out quality detection on the plate blank, and matching a quality evaluation result with the corresponding casting blank sections. According to the method, total-factor digital representation of component-process-quality data is realized, the integrity and availability of production data can be effectively improved, a complete process data chain is provided for advanced digital and intelligent continuous casting production such as quality analysis and process optimization, and the utilization rate of data resources is improved.

The utility model relates to the technical field of steel plate cutting, in particular to a flame cutting machine supporting piece for steel plate cutting, which comprises a supporting frame, roller conveyors are fixedly mounted on two sides of the top end of the supporting frame, and centering mechanisms are arranged at two ends of the middle of the supporting frame. A machine frame is arranged at the top end of the supporting frame and located above the outer portion of the roller conveyor, and a clamping mechanism is arranged in the middle of the machine frame. The clamping mechanism driven by the hydraulic push rod is adopted, a spring driving clamping block in the prior art is replaced, clamping force is remarkably enhanced, it is guaranteed that a steel plate keeps stable in the cutting process, deviation or looseness of the steel plate caused by insufficient clamping force is avoided, and therefore cutting precision and safety are improved.

The utility model discloses a raw material cutting device for wind power tower thick plate door frame production, a cutting mechanism comprises a lifting rail, the bottom of the lifting rail is fixedly connected with an upper chain wheel, the inner side of the lifting rail is slidably connected with a lifting block, one end of the lifting block extends to the outside of the lifting rail, and the other end of the lifting block is connected with a lower chain wheel. A rotating block is movably installed at the end, located outside the lifting rail, of the lifting block, a fixed hoop ring is fixedly connected to the side edge of the face, away from the lifting block, of the rotating block, a movable hoop ring is further slidably connected to the outer wall, close to the fixed hoop ring, of the rotating block, and threading holes are formed in the ends of the outer walls of the fixed hoop ring and the movable hoop ring correspondingly; the flame cutting gun is clamped and fixed together through the fixed hoop ring and the movable hoop ring, and the fixed flame cutting gun is limited in the moving direction through the arranged lifting rail, so that it can be guaranteed that the cutting track is straight when an operator holds the flame cutting gun, and the cutting effect can be improved easily.

The invention belongs to the technical field of casting blank cutting, and particularly relates to a conveying roller device and method for solving adhesion of a casting blank after cutting. The lifting roller is arranged between the conveying roller and the flame cutting area, due to the fact that the lifting roller rotates by one circle, the highest point of the upper end of the lifting roller is higher than the upper end of the conveying roller, and the lowest point of the upper end of the lifting roller is lower than the upper end of the conveying roller. Therefore, one end of the cut casting blank can be lifted up through the lifting roller, displacement in the vertical direction of the casting blank to be cut is achieved, then the adhesion position is snapped through the lifting force of the lifting roller and the gravity of the casting blank, and the cutting efficiency and safety of the casting blank are effectively guaranteed. The device is simple in structure, can effectively solve the problem of casting blank adhesion, reduces the labor of workers, and avoids production accidents caused by untimely treatment.

The invention relates to the technical field of cutting equipment, and discloses numerical control flame cutting equipment and a cutting method.The equipment comprises a base, a groove is formed in the base, a guide box is fixedly installed on the base, two first supporting plates are slidably installed on the base, and guide rods used for installing the first supporting plates are fixedly installed on the base; a pressing plate is arranged on the first supporting plate, a plurality of sets of transverse plates are installed on the first supporting plate in a sliding mode through through grooves, and a second supporting plate is jointly and fixedly installed at the ends of the transverse plates. The cutting device has the beneficial effects that during cutting, the two sides of a cutting seam are supported through the second supporting plates and the supporting blocks, it is guaranteed that an iron plate can be stably supported during cutting, and the situation that the iron plate is suspended at the cutting position and deforms during cutting is avoided.

The application discloses a continuous casting tundish molten steel mixing concentration calculation method, and is characterized by comprising the following steps: S1: using an iterative calculation method to calculate the current time solute mixing degree; S2: comparing the calculated current time solute mixing degree with a standard value, if the comparison is correct, it is determined that the molten steel entering the continuous casting machine at the time meets the requirements; if the comparison is incorrect, step S1 is repeated again. The application has the advantages that the method can predict the chemical composition of each position of the mixed pouring billet through a mathematical model, position the mixed pouring billet, optimize the flame cutting parameters, and improve the qualified continuous casting billet yield. The method can obtain the ladle pouring information, including time, composition, and the like, obtain the actual detected composition, calculate the chemical composition mixing degree range of the mixed pouring heats through a mathematical model, and calculate the chemical composition mixing degree of each position in real time, so that the reasonable cutting position is determined, and thus the chemical composition of the mixed pouring billet and the upper and lower continuous casting billets can meet the design requirements.