13results about How to "Improve work rate" patented technology

This utility model discloses a support frame base for a front guide for the pinch rolls of a high-speed wire rod mill, comprising a base plate, a connecting plate, and a top plate. By providing limiting devices on two support frames, the front guide column can be fixed by controlling the studs. Combined with the operation of the control screw, the fixing block secures the front guide column. This multi-faceted fixation ensures a robust fixation of the front guide column. Various inner diameter front guides can be designed according to the specifications of the rolled products, while maintaining a consistent shape. This ensures that the same support frame base can accommodate the installation and positioning of front guides and support frames with different inner diameters. It also solves the problem of non-standard distances between the pinch rolls and the cooling guide grooves in the water tank. Furthermore, the structure is simple and easy to assemble and disassemble, thereby reducing replacement and disassembly time, increasing production line operating rate, and reducing the workload of operators.

This invention discloses a high-precision centering and positioning steam-water nozzle for dual-section continuous casting, belonging to the field of metallurgical equipment technology. It includes a nozzle body, a connector, and a nozzle head. The nozzle body has a cuboid structure with a groove for connection to the connector, and two slots within the groove. One end of the connector is detachably equipped with the nozzle head, and the other end has a locking nut and a positioning pin. The locking nut is fixedly fitted onto the end of the connector, and the connector is threadedly connected to the groove on the nozzle body via the locking nut. Two positioning pins are symmetrically positioned on the end of the connector with the locking nut, and these pins are adapted to the slots within the nozzle body. The nozzle has a simple structure, is easy to use, reduces maintenance time when changing sections, and accurately, efficiently, and conveniently meets the installation requirements for the vertical dimension and centering accuracy of the nozzle head relative to the billet end face during production of different sections, ensuring the uniformity of secondary cooling of the continuously cast billet during actual production.

The application relates to a rectangular furnace bottom structure in the technical field of pyrometallurgical furnace equipment, and in particular to a rectangular furnace bottom structure. The rectangular furnace bottom structure comprises, from bottom to top, a heat preservation layer, a ramming layer, a safety layer and a working layer in sequence. The lower half of the heat preservation layer is filled horizontally, the upper half of the heat preservation layer is a structure symmetrically retreating to both sides, forming an arc-shaped surface, an arc-shaped ramming layer with a high middle and a low both ends is filled above the heat preservation layer, the safety layer and the working layer are sequentially built on the ramming layer, the upper surface of the working layer is arc-shaped with a high middle and a low both ends, a molten metal copper jacket is arranged on the adjacent furnace wall of the safety layer and the working layer, and a molten metal outlet is arranged in the molten metal copper jacket. The straight surface of the furnace bottom structure is changed into an arc surface, the structural strength and stability are high, the heat preservation layer and the working layer are closely contacted, the molten body leakage is prevented, the brick body expansion can be absorbed, the construction is convenient, the cost is low, and the rectangular furnace bottom structure is suitable for furnaces of different sizes.

The application provides a wear-resistant composite piercing mill head manufacturing method and a piercing mill head, and the manufacturing method comprises the following steps: S1, preparing a steel base head; S2, adopting a submerged-arc welding process to make a flux-cored wire cladded on a working cone surface and a nose end surface of the steel base head, so as to form a cladding layer with a thickness of 6-8 mm; and S3, pre-oxidizing the cladding layer of the steel base head at high temperature, so that the wear-resistant composite piercing mill head is obtained. The wear-resistant composite piercing mill head manufacturing method has a dense and uniform oxide film on the surface of the cladding layer of the piercing mill head, the oxide film is firmly combined with the cladding layer, and the existence of the dense and uniform oxide film can reduce the power consumption of a steel pipe piercing mill and prolong the service life of the piercing mill head.

This invention relates to a method for improving the bowl-shaped end face of drill collar steel after straightening, belonging to the technical field of drill collar steel production processes in the metallurgical industry. The technical solution is as follows: a seven-roll straightening method is used, with the reduction of the No. 1 and No. 3 upper and lower rolls being 4-5 mm, and the reduction of the No. 2 upper and lower rolls being 1-2 mm; the reverse bending amount is 15-16 mm; the straightening roll angles are: No. 1 upper and lower roll angle 29.5-30°, No. 2 upper roll angle 30-31°, No. 3 upper roll angle 29.5-30°, and lower roll angle 32-32.5°; the end of the straightened round steel is chamfered, with a chamfer angle of 30-45° and a chamfer length of 1-2 mm. The beneficial effects of this invention are: it can reduce the internal structural stress of the drill collar steel, ensure the hardness of the drill collar, and ensure that the bowl-shaped end face depth of the straightened drill collar steel is within 2 mm, avoiding cracking at the end face face during processing.

The application relates to a mill feeding sealing device and a mounting and dismounting method, and belongs to the technical field of mills, which comprises a supporting table, one side of the top of the supporting table is fixedly provided with an output motor, and the other side of the top surface of the supporting table is provided with a crusher, the crusher comprises a discharging chute plate fixedly arranged on one side of the top of the supporting table, opposite sides of the surface of the discharging chute plate are rotatably provided with power shafts through connecting shafts, one side of the top of the discharging chute plate is rotatably provided with a feeding chute plate, and a sealing assembly is arranged between the discharging chute plate and the feeding chute plate, the sealing assembly comprises two sealing rings arranged between the discharging chute plate and the feeding chute plate, the sealing ring structure is filled with substances inside, additional internal supporting force is generated when the sealing ring structure is extruded, the sealing ring and a matching surface can be kept in stable contact, the sealing reliability of a mill feeding position is remarkably improved, and material leakage is effectively prevented.

The application discloses a rotary kiln refractory on-line repairing method, which can realize full-process mechanized operation and out-kiln operation, reduces labor intensity of workers, improves essential safety degree of operation, reduces artificial cost and safety protection cost, adopts self-reaction of materials such as aluminum sulfate, potassium sulfate, quartz and bentonite to repair the rotary kiln refractory, does not need to prepare refractory bricks or blocks, and has low overall material cost; the rotary kiln refractory repairing time is effectively reduced, the rotary kiln operation rate is improved; the refractory thickness can be supplemented at any time, long-time thin refractory operation of the traditional rotary kiln is avoided, the heat preservation capacity and thermal efficiency in the production process of the rotary kiln are improved, and the overall economy of the rotary kiln production is improved.

The utility model provides a kind of mining horizontal strong mixing machine, including fixedly arranged horizontal arrangement's barrel, the upper end of barrel is equipped with feed inlet, the lower side of barrel is equipped with discharge port, the central position of barrel is equipped with rotatable transmission shaft, multiple mixing tools are distributed on transmission shaft, and mixing tool includes rake tooth close to barrel inner wall position and is inclined;The utility model can improve the wear resistance of rake tooth during work by brazing wear-resistant alloy on the surface of rake tooth, which is beneficial to prolong its service life, reduce the frequency of maintenance and improve the operation rate of equipment production.In addition, by setting the angle-adjustable movable plate inside the feed inlet, it can prevent the material from directly impacting on the transmission shaft to prevent the transmission shaft and its bearing from being damaged, and it can also adjust the size of the feed inlet to adjust the amount of material entering the barrel per unit time to meet the needs of different material mixing.

The utility model belongs to blast furnace ironmaking technical field relates to a kind of blast furnace top plunger protection structure, including protective grate, the protective grate includes frame and the grid net being set in frame, grid net is formed by transverse and longitudinal staggered grate bar welding, further including wear-resistant protection block, wear-resistant protection block is provided with the structure of insertion slot in lower end face, and the grate bar is inserted in insertion slot. The blast furnace top plunger protection structure of the utility model, by the installation of wear-resistant protection block, the wear resistance of protective grate has been significantly improved. Compared with before optimization, under the same production condition, the wear rate of wear-resistant protection block is significantly reduced, effectively protects the protective grate, prolongs its service life.

The invention relates to the technical field of wide and thick plate rolling, in particular to a method for correcting the rigidity of a rolling mill and controlling the plate shape, which comprises the following steps of: acquiring rolling force values calculated in the last but one pass and the last but one pass, roll gap calculated values, actually measured rolling force values and actually measured roll gap values; calculating a pre-calculated rigidity value and an actually measured rigidity value; calculating a rolling mill rigidity deviation judgment coefficient; if the rolling mill rigidity deviation judgment coefficient exists, the rigidity compensation adjustment coefficient is corrected, and rolling force calculation is executed based on the corrected rigidity compensation adjustment coefficient; otherwise, calculation is executed according to the set rolling force. The method has the advantages that through real-time monitoring and deviation compensation of the rigidity of the rolling mill, plate shape fluctuation caused by equipment aging or working condition changes is effectively reduced; the rolling force deviation of the last pass is stably controlled within 60 tons, and the plate shape qualification rate is increased; and by introducing a rigidity fluctuation identification and compensation mechanism, instability factors in the rolling process are reduced.

The application provides a micro-nano ceramic particle reinforced die steel with high impact performance and a preparation method. The preparation method comprises the following steps: putting TiAl alloy powder, BN powder and C powder into a mixing machine to obtain a mixture 1, and using pure aluminum strip to coat the mixture 1 to obtain a wire A; the wire A is subjected to buffer segmented electric explosion 1 to obtain a mixture 2; putting NbAl alloy powder and B4C powder into a mixing machine to obtain a mixture 3, and using pure aluminum strip to coat the mixture 1 to obtain a wire B through coating forming 2; the wire B is subjected to buffer segmented electric explosion 2 to obtain a mixture 4; the mixture 2 and the mixture 4 are coated by using stainless steel strip through coating forming 3 to obtain a wire C; the die steel is melted into a molten steel, the wire C is added into the molten steel, and then vacuum degassing, electroslag remelting, high-temperature diffusion, multi-directional forging and heat treatment are carried out to obtain the micro-nano ceramic particle reinforced die steel with high impact toughness. The longitudinal unnotched impact energy of the die steel is 578.9-601.6 J, the transverse unnotched impact energy is 576.7-590.9 J, and the isotropy is 0.96-0.99.

The utility model relates to an ammonium polyvanadate slurry pipeline filter, and belongs to the technical field of chemical medium filtration in the metallurgical industry. According to the technical scheme, the filtering device comprises a filtering container (1), an upper sealing cover (2), a feeding connector (3), a blow-off pipe (4), a discharging connector (5) and an exhaust pipe (6), the upper sealing cover (2) is arranged on the filtering container (1), the exhaust pipe (6) is arranged on the upper sealing cover (2), the feeding connector (3) and the blow-off pipe (4) are arranged on one side of the filtering container (1), the discharging connector (5) is arranged on the other side of the filtering container (1), a filtering plate (9) is longitudinally arranged in the filtering container (1), and the filtering plate (9) is arranged in the filtering container (1). And round holes (12) are uniformly formed in the filter plate (9) as filter holes. The ammonium polyvanadate slurry filter has the beneficial effects that the ammonium polyvanadate slurry can quickly pass through the filter, the conveying flow of a pipeline medium is not influenced, large impurities which are easy to block an impeller in a solution can be effectively filtered, and the impeller is prevented from being blocked.

This invention relates to a control system and method for online automatic oil replenishment and replacement of closed-loop hydraulic equipment, belonging to the field of hydraulic control. It includes a monitoring module, a scheduling module, an oil replacement module, an oil replenishment module, and a refueling device. The monitoring module is electrically connected to the scheduling module, which in turn is electrically connected to both the oil replacement module and the oil replenishment module. The monitoring module detects and determines whether the online hydraulic equipment needs oil replenishment or replacement, and the number of units requiring such replenishment or replacement. The scheduling module schedules operations based on the oil replenishment and replacement needs. The oil replacement module performs an oil replacement operation when the oil replacement conditions are met; the oil replenishment module performs an oil replenishment operation when the oil replenishment conditions are met. This solution achieves automatic oil replenishment and replacement control for multiple closed-loop hydraulic devices, enabling timely fulfillment of the oil replacement or replenishment needs of each device, improving maintenance efficiency, reducing equipment failure rates, extending equipment lifespan, and reducing costs.