87results about How to "Improve safety hazards" patented technology

The invention discloses an integrated large-scale raft type culture device. The culture device comprises a body and a fixed berthing device for fixing the body, wherein the body comprises a PE float of which the top is provided with a working platform, and at least six cantilevers connected with the side of the PE float. The PE float has a cavity; the cantilevers are radially arranged along the side of the PE float; an I-shaped steel bar is connected with the bottom end of the PE float; and a weight is connected with a cable on the underside of the I-shaped steel bar. The culture device has the advantages that: the device has a lower integral center and good stability, and realizes the function of controlling the culture water level conveniently; in addition, the culture device has simple operation, great culture space and high production efficiency; and the operating personnel can walk and patrol on the device so as to conveniently find out hidden dangers and carry out the harvest operation. The integrated large-scale raft type culture device has a reasonable structure, good stability, high culture efficiency, convenient patrol and harvest, and simple water level control.

The invention discloses a positive plate and a lithium ion battery containing the positive plate. The positive plate comprises a current collector and a coating located in a coating area of the current collector; the coating comprises a first coating area and a second coating area; the first coating area is located on the surface of the current collector coating area, and the contact surface of the first coating area and the current collector coating area completely covers the current collector coating area; the second coating area is located above the first coating area and comprises an areaE and an area E', the area E and the area E' are located on the long edge sides of the first coating area respectively, and the area E and the area E' are independent of each other or at least have one intersection point; and both the first coating area and the second coating area contain active substances. The problem of lithium precipitation in the edge area of the negative electrode is fully solved, a cruising ability of the lithium ion battery is improved, the problems of cyclic expansion and battery cell deformation are solved, and a safety risk is reduced.

The invention provides a paper box molding, positioning and processing control method comprising the following steps: setting a glue costing cover paper and a paper box to be packed on a transportation line of a processing machine; transmitting a control instruction and a start measuring signal to an industrial control computer by a programmable controller; monitoring and collecting position data of the glue costing cover paper on the transportation line by a video camera; transporting the position data to the industrial control computer; processing the received data by an image processing card which is arranged in the industrial control computer; transporting the received data to the programmable controller; operating the position data by an operation coding module arranged in the programmable controller; converting the position data into a pulse signal by a signal processing module; controlling response frequency to rotate after an servomotor receives the signal; combining the control of the programmable controller to realize whole machine linkage; and setting parametric variation of each item and monitoring the operation state of each part of an executing machine by a human-machine interface. The invention also provides a positioning and controlling system for realizing the method.

The invention discloses an anionic dye fixing agent with formaldehyde removal function and a preparation method thereof. The preparation method comprises the following steps: with N,N-methylene bisacrylamide and diethylenetriamine as raw materials and water as a solvent, preparing an amino-terminated hyperbranched polymer; carrying out graft copolymerization on collagen hydrolysate liquor and a monomer to prepare a cationic collagen copolymer; and finally, compounding the prepared amino-terminated hyperbranched polymer with the cationic collagen copolymer according to a mass ratio of 1:10 to 10:1 to obtain the anionic dye fixing agent with the formaldehyde removal function. Through the compounding of the amino-terminated hyperbranched polymer and the cationic collagen copolymer, the anionic dye fixing agent with the formaldehyde removal function is prepared; when the anionic dye fixing agent with the formaldehyde removal function is used in the dyeing process, the dye-uptake and color fastness of leather can be effectively increased, and the content of formaldehyde in the leather can be decreased.

The invention provides a railway signal comprehensive monitoring system, relates to the technical field of railway signal information, and solves the technical problem that running states of railway equipment cannot be comprehensively monitored in the prior art. The system comprises foreground equipment, data storage (DB) equipment, railway signal application (OMCP server) equipment, railway signal acquiring (DCP server) equipment, and railway signal communicating (commserver) equipment, wherein the commserver equipment comprises a resource server module, a performance server module and an event client module; and the DCP server equipment comprises a resource client module, a performance client module and an event client module. The embodiment of the invention is mainly used for monitoring running states of the railway equipment so as to discover problems which possibly occur in the running process.

The present invention relates to a forage harvester blower including a blower rotor having a plurality of generally radially extending rotor paddles which operate in a corresponding substantially cylindrical housing, characterised in that said housing is provided with adjustment mechanism for at least locally adjusting the diameter of the housing. The present invention further relates to a method for optimising the operation of a forage harvester blower and to a method for preventing damage to a forage harvester blower during operation.

A micro system optical fiber gas transducer is formed by two short - cycle optical fiber gratings and two long - cycle optical fiber gratings on one section of optical fiber. The sensing system formed by said gas transducers consists of wideband light source, wideband coupler, microsysem optical fiber gas transducer, optical fiber spectrum demodulator and computer. The sensing method calibrates temperature coefficient and sensitive coefficient of transducer first and then measures out concentration of gas to be tested.

The invention discloses a novel high current switching control device and belongs to a high-power current control device. The novel high current switching control device is composed of alternating-current contactors KM1 and KM2, a switching control relay RLY1, auxiliary interlocking relays RLY2 and RLY3, a silicon controlled rectifier SCR and current-limiting resistors R1 and R2. The novel high current switching control device is characterized in that the alternating-current contactors and the relays are open in an early stage of powering on; and the device has three states of being powered on, being switched from bypass output to inverter output and being switched from inverter output to bypass output. A switching compensation mechanism is introduced on the basis of a high-power switching device to ensure power supply safety of electric equipment and prolong the electrical life of a contact point. The novel high current switching control device has the advantages of being simple in structure, capable of realizing zero loss, energy-saving and environment-friendly, higher in operation efficiency, smaller in size, high in reliability and the like.

The invention relates to an insulation device for a high-voltage outlet terminal of a dry-type transformer, which comprises a high-voltage coil casting body, a low-voltage coil casting body, an iron core installed inside the low-voltage coil casting body and an upper clamping piece and a lower clamping piece for fixing the high-voltage coil casting body and the low-voltage coil casting body, wherein a high-voltage outlet terminal is arranged on the external wall of the high-voltage coil casting body and is connected with a lead wire. The invention is characterized in that a closed insulation sheath is arranged outside the high-voltage outlet terminal, and the side wall of the insulation sheath is provided with a lead wire outlet matched with the lead wire. Compared with the structure of the prior art, by installing the insulation sheath outside the high-voltage outlet terminal, the invention enhances the use safety of a dry-type transformer, reduces the space insulation distance of thedry-type transformer, shortens the distance from a transformer cabinet, and obviously improves the potential safety hazard caused by severe environment. The lead wire outlet is arranged on the side wall of the insulation sheath and is matched with the lead wire, thereby enabling the insulation sheath to have a complete structure.

The invention discloses a fabricated building grouting teaching practical training device, which comprises a wall body composed of a low-density wall and a high-density wall, a steel bar framework isarranged in the wall body, the low-density wall is made of foamed concrete, the high-density wall is made of concrete, a grouting cavity is formed in the high-density wall, and a grouting sleeve is arranged in the grouting cavity. A grouting pipe and a grout overflowing pipe are connected to the grouting sleeve, and one end of the grouting pipe and one end of the grout overflowing pipe extend outwards to penetrate out of the wall body; a pressure sensor is arranged in the grouting cavity, and a cable is connected to the pressure sensor; a rotary spray head is arranged in the grouting cavity and is connected with a water pipe; a water outlet is formed in the high-density wall and located in the bottom of the grouting cavity, and a plug is arranged at the position of the water outlet. The device has the advantages of being small in simulation error, small in potential safety hazard, capable of being used for repeated grouting, low in maintenance frequency and capable of better meeting the cultivation requirement for the grouting skill in the cultivation activity of assembly type building industry workers.

The invention discloses an intelligent optical fiber energy transmission sensing monitoring system and network. The system comprises a display control terminal, a transmitting end central control unit, an optical fiber channel and a receiving end module; high-temperature working thresholds are set for the laser and the photocell respectively, when the temperature exceeds the thresholds, a single-chip microcomputer of the transmitting end central control unit turns off the laser through a drive circuit, and a charger starts to work at the moment to provide electric energy for the receiving module; and the lowest power threshold value is set for the charger, and when the power of the charger is lower than the power threshold value, the single-chip microcomputer in the central control unit starts the laser through the drive circuit, the photoelectric converter work to perform photoelectric conversion. And continuous and reliable work of the system and the network is ensured through cyclicand alternate energy supply. Finally, the temperature and power of the transmitting end and the receiving end are comprehensively monitored and displayed, automatic temperature protection is carriedout on the transmitting end laser and the receiving end photoelectric converter, and automatic power storage is carried out on the receiving end module.

The invention relates to the technical field of wind power plant monitoring, in particular to a safety monitoring system for wind power plant management. The system comprises a control center and a central controller, wherein the output end of the control center is unidirectionally and electrically connected with a wind generating set and a transformer substation, and the input end of the control center is unidirectionally and electrically connected with a meteorological station; the output end of the central controller is unidirectionally and electrically connected with an alarm module, and the output end of the central controller is bidirectionally and electrically connected with a wireless transmission module and a storage module. The invention provides a safety monitoring system for wind power plant management. The system has the advantages of monitoring the maintenance process in a wind power plant, preventing maintenance mistakes, performing regulation violation supervision in the operation process, monitoring the internal environment of the wind power plant, warning abnormal conditions, facilitating timely processing by a user and avoiding potential safety hazard due to untimely processing.

The invention provides an arch-supported cable-stayed bridge beam vertical rotating and lowering closure method and a bridge structure used in cooperation with the same, whichbelong to the technical field of bridge construction.The bridge structure comprises a main beam-cross beam connecting structure and a beam-arch tower connecting structure; the main beam-cross beam connecting structure comprises a steel box main beam and main beam connecting sections prefabricated and welded to the two sides of the steel box main beam. The cross beam-arch tower connecting structures are located on the twosides of the main beam-cross beam connecting structure, and each cross beam-arch tower connecting structure comprises a steel arch tower, an arch tower connecting section welded with the steel arch tower into a whole and a vertical closure section hinged to the arch tower connecting section through a vertical rotating hinge. After the vertical closure section is subjected to arch tower closure andmid-span closure, the vertical closure section is lowered to be welded with the main beam connecting section; the main beam connecting sections, the vertical closure sections and the arch tower connecting sections on the two sides of the steel box main beam form a steel cross beam. The problems that when an existing arch-supported cable-stayed bridge is subjected to incremental launching construction and crosses an existing line, a beam hoisting construction method causes potential safety hazards to the existing line, and efficiency is low are solved.

The invention discloses an automatic grabbing carrying device. The automatic grabbing carrying device comprises a grabbing carrying machine head, a carrying portal frame, an electric control cabinet and an electromagnetic chuck; the grabbing carrying machine head is mounted on the carrying portal frame, the electric control cabinet is mounted on the carrying portal frame, and the electric controlcabinet controls the grabbing carrying machine head to move transversally and longitudinally on the carrying portal frame; the electromagnetic chuck is mounted on the grabbing carrying machine head, and the grabbing carrying machine head drives the electromagnetic chuck to grab workpieces. The automatic grabbing carrying device is controlled through the electromagnetic chuck and an electromagneticcontroller, manual remote control operation can be used for conducting grabbing workpiece position aligning work and placing work, the situation that workers make contact with the workpieces in the grabbing carrying process is avoided, and the grabbing carrying process is conducted on the height of being close to the ground, so that potential safety hazards can be greatly avoided; the forming structure of the grabbing carrying device is simple, the production and manufacturing cost is low, and large-scale manufacturing, using and popularization are facilitated; and the grabbing carrying device is easy and convenient to operate, manual remote control is conducted in the long distance, the skill requirements for the workers are low, and the labor intensity is small.

The invention relates to a sewage well for a municipal road. The sewage well comprises a well body and a well lid, a sewage hole is formed in the well lid, the well lid comprises a well lid body, a first turning plate, a second turning plate and a connecting rod, the well lid body is arranged on the well body, an opening is formed in the well lid body, and the first turning plate and the second turning plate are located at the opening; and each of the first turning plate and the second turning plate is rotationally connected with a moving column, the moving columns are slidably connected withthe well lid body, and the first turning plate and the second turning plate are hinged through the connecting rod. The sewage well can solve the problems that the well lid is submerged, and potentialsafety hazards are caused to pedestrians.

The invention relates to the technical field of labeling of motor equipment, and discloses an automatic labeling machine. The automatic labeling machine comprises a vertical machine frame plate, a label paper input roller, a label stripping mechanism, a labeling mechanism and a label paper recycling roller, the label paper input roller and the label paper recycling roller are arranged on the vertical machine frame plate in parallel, a label paper roller is fixed on the label paper input roller and is transmitted to the label paper recycling roller, the label paper roll is arranged on the labelpaper conveying path, the label stripping mechanism is provided, the label stripping mechanism is fixed on the vertical machine frame plate, is parallel to the label paper input roller, a sliding rail is arranged on the vertical machine frame plate above the label stripping mechanism, the labeling mechanism is arranged on the sliding rail, and an adsorption head of the labeling mechanism is located above the label stripping mechanism. According to the automatic labeling machine, the automatic operation of the labeling of the motor is realized, and the batch labeling work of the motor is realized.

The invention discloses an electric cooker control method and device, a storage medium and an electric cooker. The method comprises the following steps of: determining whether a user forgets to send acooking instruction or not after the electric cooker is started; if the fact that the user forgets to send the cooking instruction after the electric cooker is started is determined, determining whether the electric cooker has a set cooking condition or not; and if the electric cooker has the cooking condition, executing a set anti-forgetting control mode after a first preset time length, so as to automatically enter a set cooking mode under the condition that the cooking instruction is not sent after the electric cooker is started. According to the method, the problems that mechanical electric cookers need manual operation and the operations of intelligent electric cookers are too complicated for the old people or certain special crowds can be solved, and the effect of enhancing the using convenience can be achieved.

The invention discloses a sign special for an air switch. The sign includes an upper clamp part, a lower clamp part and a spring for connecting the upper clamp part and the lower clamp part. The upperclamp part includes an upper clamp head and an upper clamp tail; an anti-skid rubber pad is arranged on the contact surface of the upper clamp head and the air switch, public signs are arranged on the outer surface of the upper clamp head, the lower clamp part includes a lower clamp head, a lower clamp tail and an anti-switch-off baffle, an anti-skid rubber pad is arranged on the contact surfaceof the lower clamp head and the air switch, and the anti-switch-off baffle is arranged on the inner side of the lower clamp head and at the position of an operation handle corresponding to the air switch for fixing the operation handle so that the air switch can be prevented from being switched off. The sign can solve the problem that it is difficult for the air switch to hang the sign and the indication directions of markers are not clear, and the sign has the advantages that the occurrence of electric power safety accidents is avoided to a large extent, hidden safety hazards caused by humanmisunderstanding are eliminated, disassembly is easy, the sign is convenient to use, and the application range is wide.