49results about How to "Reduce operational accidents" patented technology

The invention discloses a method for endless rolling of sectional material and rod and wire material and a flexible connecting device thereof, which realize seamless connection of all-line rolling and continuous molding from crystallizers to finished products. The invention comprises that a flexible connecting rolling mill device is arranged on a conventional continuous casting-continuous rollingproduction line, wherein the flexible connecting rolling mill device is in three forms: one consists of a soft pressure lower roll system; one consists of a high pressure lower roll mechanism; and one consists of the soft pressure lower roll system and the high pressure lower roll mechanism together. The flexible connecting rolling mill device is arranged between the crystallizers and the conventional continuous rolling mills in one of the three forms. The method for the endless rolling of the sectional material and rod and wire materials and the flexible connecting device thereof save three processes of continuously cast bloom cutting, secondary heating and welding, realize the seamless connection and flexible connection between the continuous casting and continuous rolling, shorten the production flow and the production line length, simplify the operation, and provide a new way for the metallurgy production to realize the energy and resource conservation, reduce the carbon emission,reduce the cost and improve the product quality and competitiveness.

The invention relates to an automatic slag adding machine and a slag adding method. The automatic slag adding machine comprises a trolley mechanism, wherein a material conveying system is arranged on the trolley mechanism in a horizontally swinging manner; a material storage system is arranged at a position of the material conveying system, which is close to the tail of the material conveying system; and the head of the material conveying system is provided with a material blanking tube. The automatic slag adding machine is characterized in that the material blanking tube is connected with an oscillating arm system and can do linear motion along a crystallizer. The automatic slag adding machine has the advantages that the conventional arc motion slag adding mode is replaced by a linear motion slag adding mode, so that the linear motion slag adding mode is consistent with the section of the crystallizer, and the section of the crystallizer can be added with slag completely; the area of the crystallizer can be fully covered; a phenomenon that molten steel and air are oxidized secondarily can be avoided, molten steel oxide impurities are reduced, the quality of ingot is improved, the labor intensity of workers is reduced, operation accidents are reduced, the production cost is saved, and the automation level of continuous casting production operation is increased; due to a protection slag thickness detection function, the number of added slag can be controlled; and the waste of the protection slag is avoided. The automatic slag adding machine is rational in structural design, meets an actual production requirement, is low in loss, convenient to run and easy to operate and does not waste any slag.

The invention relates to a reducer capable of regulating return difference. The reducer comprises an outer shell, a compound planet gear, an input shaft and output shaft, wherein a first gear I of the compound planet gear is meshed with the fixed gear ring of the outer shell, and a second gear II thereof is meshed with the gear of the output shaft; the input shaft and the output shaft are in the same straight line, the eccentric shaft neck of the input shaft is provided with taper, and an eccentric sleeve is arranged between the eccentric shaft neck of the input shaft and the bearing of the compound planet gear; the eccentric sleeve is provided with a tapered hole, and the front end of the eccentric sleeve is provided with an elastic hanger; the eccentric shaft neck of the input shaft is tightly matched with the tapered hole of the eccentric sleeve; the centre hole of the output shaft is internally provided with an adjusting screw rod, a screwed hole at the large end of the adjusting screw rod is connected with an external thread at the other end of the input shaft; and the elastic hanger of the eccentric sleeve is inserted into a hanger groove at the larger end of the adjusting screw rod, and the larger end of the adjusting screw rod is connected with the output shaft through a bearing. The invention can carry out adjustment to enable the gear return difference to restore to an expected value, has simple, convenient and feasible adjustment, reduced gear manufacturing cost and prolonged service life. The second embodiment of the invention can realize automatically regulating return difference.

The invention discloses a homogeneous pool esterification water treatment system. The system comprises a homogeneous pool, a storage barrel, an upper self-suction pipe, a lower equilibrium inhalation pipe, a centrifugal pump, a control valve and a circulating pipeline. The height of the reserves of the storage barrel is less than that of the homogeneous pool; one pipe orifice of the upper self-suction pipe inserts into the bottom of the homogeneous pool, and the other pipe orifice is connected to the storage barrel through the lower equilibrium inhalation pipe; one end of the circulating pipe communicates with the storage barrel, and the other end of the circulating pipe communicates with the homogeneous pool; the centrifugal pump and the control valve are arranged on the circulating pipeline; and the storage barrel is provided with a water inlet pipe. A treatment method of the system uses the homogeneous pool to reduce COD index of the esterification water, and circulation operation is conducted on the esterification water in the homogeneous process. The invention can effectively improve the outlet water quality of homogeneous esterification water, reduce COD index of the outlet esterification water, and enable the precipitated sludge to conduct self-circulation timely and effectively, and reduce the loss of sludge.

The present invention provides an excitation power synchronization signal collection and processing method and apparatus. The method comprises the steps of collecting a synchronization voltage signal and a generator PT signal simultaneously; determining phase sequences, frequencies and phase values of the synchronization voltage signal and the generator PT signal according to the synchronization voltage signal and the generator PT signal; and determining an excitation power synchronization signal reference source according to the phase sequences, frequencies and phase values of the synchronization voltage signal and the generator PT signal. Through adoption of the method and apparatus, redundant intelligence of a synchronization signal of rectification of the controllable silicon rectification bridge is realized, the fault tolerance rate is higher, and related running accidents of the excitation system and the generator caused by synchronization loop sampling abnormality are reduced.

The invention relates to an automatic cloth leftover winding device comprising a winding mechanism, a turnover mechanism and a mounting base. The winding mechanism comprises a first bearing part and at least one set of winding parts. The winding parts comprise drive parts, transmission shafts, fixing bases, telescopic parts and second bearing parts; output shafts of the drive parts are provided with first synchronous wheels; the transmission shafts are fixedly sleeved with a plurality of second synchronous wheels; the second bearing parts are provided with driven wheels; at least one second synchronous wheel and the corresponding first synchronous wheel are connected through a first synchronous belt; the other second synchronous wheels are connected with the driven wheels through a secondsynchronous belt; swing arms are arranged at the two ends of the second bearing parts; the transmission shafts and the swing arms are hinged; the movable ends of the telescopic parts are connected with the swing arms or the second bearing parts; and the turnover mechanism is fixed to the mounting base and connected with the winding mechanism. The automatic cloth leftover winding device can achieveautomatic winding of cloth leftovers, manual operation is not needed, safety, high speed and high efficiency are achieved, and cost is saved.

The invention discloses an EPCU(electric pneumatic control unit) backup conversion device of a CCB II (computer controlled brake-second generation) brake. The EPCU backup conversion device comprises a power source conversion module, a signal control acquisition module, a signal control output module, bus expansion, a control module, an LON (local operating network) module, FTT(free topology transceiver)-10A LON transceivers, double-port RAM(random access memory) and MVB(multifunction vehicle bus) communication chips, MVB network data transceivers, and a default indication storage module. By the EPCU backup conversion device of the CCB II brake, a solution for assisting vehicle due to EPCU partial default (such as default codes 014, 017, 025 and the like) is provided, a locomotive brake command is ensured to be executed normally and locomotive normal running is maintained.