345 results about "Occupational disease" patented technology

The invention discloses a terminal system for synchronous teaching or conferences. The system is characterized by also comprising a network synchronous communication module, wherein the network synchronous communication module is used for processing, playing and displaying session contents such as collected audio data, video data and handwriting data as well as documents opened by users, sending the processed session contents to a remote terminal through the Internet, and processing, playing and displaying the session content data received from the remote terminal. According to the invention, a traditional teaching method and an online teaching method are combined organically, therefore, the problems of teaching resource shortage and uneven prominent teacher resource distribution caused by geographical position, regional difference between the rich and the poor and other factors can be solved, severe occupational diseases caused by the traditional teaching method can be relieved, the defects of current long-distance teaching system and equipment can be overcome, and meanwhile, the teaching interaction can be improved and the study enthusiasm of students can be enhanced. The terminal system is also applicable to web conferences and local conferences.

The invention relates to a spray booth for automatically recycling spray mist through electrostatic adsorption, in particular to a spray booth for automatically recycling and treating spray mist generated during spraying operation. The spray booth comprises an electrostatic spray gun, a paint bucket providing paint to the spray gun, an air compressor providing high-pressure air and an enclosure which is provided with a workpiece fixing device and provides operation space for spraying. The enclosure comprises four operation chambers, including a spray chamber, an electrostatic chamber and a fan chamber which run through each other in sequence along the spraying direction, and a recycle chamber which is positioned below the electrostatic chamber and runs through the electrostatic chamber. The operators in the spray booth need to be equipped with masks and inflated protective clothing so that the operators can not breathe the toxic gases in the spray booth and can not have occupational diseases. The spray booth solves the problem that the existing machines have low spraying efficiency, even spraying but high price, low manual spraying cost, flexible operation but heavy labor intensity, poor operation conditions, etc, and has the characteristics of spray mist reduction and environmental protection, reduction of damage to the bodies of the operators and the environment, reduction of waste of paint resources, simple operation, high efficiency, etc.

A green making technology of animal tissue paraffin section disclosed in the invention aims at providing a technique of making a paraffin section of animal tissue applied to the agricultural university medicine and other majors, characterized by that the type of chemical reagents that are used is limited, the chemical reagents have no toxicity, and dehydrate the tissue thoroughly, accelerate making sections but not lead to excessive contraction and increasement of hardness of the tissue, and substitute dimethyl benzene used in the traditional making technology of the paraffin section which isharmful to human body, so as to eliminate the occupational diseases and environmental pollution caused by dimethyl benzene. The making technology comprises the following steps: carrying out fixation with a fixative solution (100ml of the fixative solution comprises 91 ml 85% alcohol, 4 ml methanol and 5 ml glacial acetic acid ), dehydrating the tissue with graded ethanol, then putting the fixative and dehydrated tissue in a mixed transparent reagent (comprising 14wt% of analytically pour n-butanol, 29wt% of acetone and 57wt% of absolute alcohol ) for standing for 3 hours, then carrying out normal waxing and embedding, using analytically pour turpentine (60 DEG C) for section staining, carrying out dewaxing twice, carrying out hydration under normal temperature, using haematoxylin for staining nuclei, decoloration and bluing, and using eosin for staining, dehydrating until get absolute alcohol, then carrying out air drying, and directly using the gum diluted by turpentine to sealing the section.

The present invention provides an integrated building artificial stone processing equipment with a reciprocating grinding function, which includes a base, a height adjustment device is fixedly connected to both ends of the base, and a support plate is fixedly connected to the top ends of the two height adjustment devices. The support plate is provided with a moving groove with the opening facing downwards, and the first moving block, the second moving block and the third moving block are arranged in the moving groove from left to right, and the first moving block, the second moving block and the The third moving block is provided with threaded through holes, and the three threaded through holes are jointly threaded with horizontal threaded rods, and the two ends of the horizontal threaded rods are erected at the two ends of the support plate. The invention has the following beneficial effects: it realizes the integrated treatment of grinding, polishing and cleaning, effectively improves the processing efficiency of stone materials, has a high degree of integration, effectively reduces labor input, keeps the operator away from the processing site, and reduces The incidence of occupational diseases among workers has been reduced.

The invention discloses an unmanned transportation system of an underground electric locomotive. The unmanned transportation system is characterized by comprising a dispatching system, a locomotive running unit, one or more loading station control units, one or more unloading station control units, a monitoring system, one or more trackside equipment control units, a communication system and a traction power supply monitoring system. The unmanned transportation system realizes the automatic operation of ore loading, transportation and unloading processes, ensures safe and efficient operation of the electric locomotive, simplifies the operation, improves the operation rate of the electric locomotive, and increases the ore yield. The unmanned transportation system integrates operations of underground electric locomotive drivers and ore drawing workers, ensures that the worker work position is transferred to the ground from the downhole, increases the safety, avoids the occurrence of occupational diseases, improves the intrinsic safety level, and improves the manual operation environment; and for a transport planning, the dispatching system automatically generates an order.

The invention provides a comprehensive mechanized rock roadway tunneling machine, which comprises a caterpillar traveling part, a belt conveyer part, a body mounted on the caterpillar traveling part, a top slope anchor rod anchor cable drill, an operating table and a hydraulic and control system, and is characterized by also comprising at least one cutting device, a vertical swing pushing device, a temporary support, a front fixing device and a rear fixing device, wherein the cutting device is arranged on the vertical swing pushing device and is arranged on the front part of the body; the temporary support and the front fixing device are arranged on the two sides of the front part of the body; the top slope anchor rod anchor cable drill is arranged in the middle of the front part of the body; the operating table and the hydraulic and control system are arranged on the body; and the rear fixing device is arranged in the rear lower space of the body. By using the machine, mechanized construction level is further improved, labor intensity of construction personnel and the construction personnel are reduced, field operation environment is improved, occupational diseases are reduced, and safety and working efficiency are improved; and the machine can be suitable for rock roadway construction of various large, medium and small-sized mines.

The invention relates to a coal mining method for co-mining gas in a mine. A method for injecting nitrogen in a sealed manner is adopted to close an upper drift and a lower drift of a stope face to ensure that the concentration of gas in a closed space is over 20%, the concentration of oxygen is lower than 12%, so that the explosive hazard of the gas is eliminated, and high-concentration gas in a roadway is drained so as to be utilized. A safety pressure-relief roadway needs to be remained in the mine with dangers of coal and gas outburst, and is used for releasing high-pressure gas generated by coal and gas outburst, and improving disaster resistant capability of the mine. An air regulating system is arranged in the closed space for regulating air, and a worker operates in the closed space under the condition that the safety protection is well done. Due to adoption of the method, the problem of gas explosion is solved fundamentally, the utilization ratio of gas is improved, fire disasters of the coal mine are eliminated fundamentally, the oxidation corrosion of various metal equipments is reduced, and simultaneously the equipment does not have anti-explosion requirements. As workers breathe air carried per se, the occurrence of respiratory occupational diseases is avoided. Therefore, the coal mining method for co-mining gas has extremely large popularization value.

The invention relates to an environmentally friendly bio-soluble refractory fibre and a production process thereof; the fibre comprises the following components according to the parts by weight: 58-76 parts of silicon dioxide, 24-38 parts of calcium oxide and 4-20 parts of magnesium oxide. The production process comprises the following steps: A. resistance furnace melting: silicon dioxide, calcium oxide and magnesium oxide are placed in a resistance furnace to melt to liquid at a raw material melting temperature of 1500-1800 DEG C; B. thread throwing: throwing the molten liquid to threads with high speed whirling rollers at a fiber forming temperature of 1400-1500 DEG C. The production process has the advantage that the process has little harm to human body and can effectively prevent occupational diseases such as silicosis and the like or canceration which is directly caused.

The present invention relates to the technical field of detectors, more particularly to an automatic gas sample injection apparatus and a use method thereof. The automatic gas sample injection apparatus comprises a first selection valve, a switching valve and a second selection valve, wherein the first selection valve can be connected with the switching valve, a first carrier gas, atmosphere or a vacuum pump, the switching valve can be connected with a second carrier gas, a plurality of detection gas inlets, a plurality of quantitation rings or the second selection valve, and the second selection valve can be connected with atmosphere or a gas collection device. Compared with the automatic gas sample injection apparatus in the prior art, the automatic gas sample injection apparatus of the present invention has the following characteristics that: the automatic gas sample injection apparatus is the full-automatic sample injection without human intervention when using the gas bag or syringe to perform the sampling, the sample injection volume is accurate, the repeatability is good, the use and the maintenance are convenient, and the apparatus can be widely used in the fields of environmental monitoring centers, Centers for Disease control and Prevention, occupational disease prevention and treatment, petrochemical industry, and the like.

The invention relates to a state-correct health-care chair, comprising a base and a seat plate, wherein, the seat plate has a backward lifted angle; the front of seat plate is arranged with the chest protector for supporting the chest and the leg protector for supporting the legs. The invention has three-direction bearing angles and multipoint support to be adjusted freely in independent coordinate, therefore, the normal curvature of spine and the eye distance can be held in incline state, to improve the health of peope.

The invention discloses an auxiliary lifting device for material processing, which comprises a base, and two pairs of cylinder placement grooves are opened on the upper wall of the base, and the first hydraulic cylinder with the telescopic end facing upward is fixed in the cylinder placement groove, and the two pairs of cylinder placement grooves are fixed in the cylinder placement grooves. The telescopic end of the first hydraulic cylinder is fixed to the supporting plate, and a pair of installation rods are fixed on the upper wall of the base and located on both sides of the two pairs of cylinder placement grooves. End up second hydraulic cylinder. According to the invention, the workers can be adjusted at will according to their own heights, which is convenient for people to grind, and reduces the occurrence of occupational diseases of the workers. The automatic lifting, stepping up, rotating and changing surfaces can liberate manpower and is convenient to use.

The invention relates to the use of human lysozyme in pharmaceutical industry, in particular the use in preparing medicines for treating dermatosis, infection and ulceration caused by bacteria, fungus, viruses, allergic reaction, and occupational diseases, physical diseases, nerve dysfunctional diseases, and immunity diseases. The invention exploits the novel use of human lysozyme in medical treatment, the gene recombination lysozyme has rich source, the invention also features simple process for manufacturing, and ease in use.

The invention belongs to the technical field of material distribution methods and particularly relates to an automatic material distribution device and method for stock bins. The automatic material distribution device for the stock bins comprises the stock bins, a belt conveyor arranged above the stock bins and a belt conveyor discharging trolley arranged on the belt conveyor. The automatic material distribution bin is characterized by further comprising a belt conveyor discharging trolley positioning device and a stock bin material position detection device. According to the automatic material distribution device and method for the stock bins, the full-automatic uniform material distribution can be achieved, the empty bin or the ore pressing accident is avoided, the unattended purpose can be achieved, the workers are downsized, the possibility of occupational diseases is lowered greatly, the health of the operation workers is guaranteed, and the purposes of downsizing the staff and improving the efficiency are achieved; and in addition, by the adoption of the automatic material distribution device and method for the stock bins, the economic benefits are increased, and the reliable reference can be provided for the daily overhauling work, so that the mechanical and electrical accidents are reduced, and the cost input is reduced.

At present, the flash furnace due to an increase in fusion forms accretions in the burner which causes that the “air umbrella” does not develop and in order to clean it manually the load must be lowered for safety reasons. One of the major disadvantages of all the tasks associated to the cleaning process is the exposure of the personnel to harsh environmental conditions. This in the medium and long term could generate serious occupational diseases to the operators in charge of carrying out such activity. Due to the above, a robot system and method have been developed for the automated cleaning of the burner thus minimizing the decrease of the load. The robotic system is composed mainly of an anthropomorphous robotic manipulator of at least 5 degrees of freedom, and a gripping mechanism which allows to take, manipulate and release several tools from a tool holder to carry out the cleaning process of the smelting furnace.

The invention discloses a chemical poison occupational hazard risk grade evaluation method for petrochemical enterprises, and relates to the field of occupational health. The method includes the following steps of investigating and recording operating posts and corresponding operation types in a place to be evaluated, investigating and recording the working time, occupational exposure poisons, the working equipment airtight degree, working equipment operation time of workers and an engineering control measure corresponding to each operation type, determining the hazard grade and the exposure grade of each occupational exposure poison, obtaining the risk grade of each occupational exposure poison in each operation type and risk level grades of the corresponding operating posts according to the poison hazard grades, the poison exposure grades and risk grade evaluation rules, and making a risk evaluation report and a risk control and management report. According to the chemical poison occupational hazard risk grade evaluation method for the petrochemical enterprises, occupational disease prevention resources are used reasonably, the occupational health management efficiency is obviously improved, and the occupational health prevention and control cost of the petrochemical enterprises can be effectively reduced.

The invention provides an integrated grinding and polishing dust catcher. The integrated grinding and polishing dust catcher comprises a box type rack, a grinding and polishing machine and a control electric box, the inner part of the lower end of the box type rack is provided with a dust extraction device, the grinding and polishing machine is arranged in front of a dust extraction inlet of the dust extraction device, a dust accumulation filter cavity is arranged at the upper end of the box type rack, a dust accumulator is arranged below the dust accumulation filter cavity, a plurality of dust filter elements and a blowing pipe are arranged at the top of the dust accumulation filter cavity, a pulse electromagnetic valve controlling the air inflow of the blowing pipe is arranged at the air inlet end of the blowing pipe, and a plurality of nozzles in one-to-one correspondence with the dust filter elements are arranged on the blowing pipe. Dust-containing air enters the dust extraction device from the dust extraction inlet and is then adsorbed to the outer surfaces of the dust filter elements. Filtered clean air is discharged out from the top via the dust filter elements. Pulsating dust-cleaning is carried out on the dust filter elements by utilization of compressed air, and dust blown to fall is accumulated in the dust accumulator, effectively collected and treated in a centralized and unified manner, so that the physical and psychological health of workers is protected, and the occurring rate of occupational diseases is reduced.

The present invention relates to the technical field of air purification, in particular, relates to an air purification dust removal device comprising a dust removal box, one side of the dust removal box is provided with a water tank, the dust removal box is fixed with a tapered filter net by a bracket, the inner wall of the dust removal box is provided with an annular ladder filter net, the tapered filter net is located at the middle part of the annular ladder filter net, one side of the tapered filter net is provided with a suction fan, the outer side of the suction fan is provided with an absorption plate, the adsorption plate is provided with water holes, the water tank is provided with a water pump, a high pressure nozzle is arranged above the adsorption plate, the high pressure nozzle and the water pump are connected, and the high pressure nozzle is used for spraying water onto the adsorption plate. The clean production workshop environment can be ensured; and the incidence of occupational diseases can be reduced.

The invention provides a full-automatic robot laser welding system which consists of an overall fence 1, a laser welding device, a conveying mechanism and a transfer robot 9, wherein the overall fence 1 is arranged outside the laser welding device, the conveying mechanism and the transfer robot 9; the transfer robot 9 is arranged on the laser welding device; the conveying mechanism is arranged outside the laser welding device, and the vertical straight line distance between the furthest transverse end of the conveying mechanism and the laser welding device is shorter than the longest arm length of an unfolded operation arm of the transfer robot on the same laser welding device. By virtue of the full-automatic robot laser welding system, the logistics expenditure is effectively reduced, closed operation is adopted, manual operation steps are reduced, and injuries or occupational diseases brought to working personnel can be effectively avoided; according to the full-automatic robot laser welding system, by virtue of intelligent operation, the overall safety and reliability of the system are improved, the production efficiency is improved, and energy consumption is reduced.

The invention discloses a mulberry leaf shearing device which comprises a lower blade, an upper blade and a driving device. The upper blade is provided with a limiting groove, the upper blade is movably connected to the lower blade through a limiting assembly and the limiting groove, blade teeth on the upper blade can move back and forth along the limiting groove to be cooperated with blade teeth of the lower blade for cutting, and the driving device is connected with the upper blade through a crank-link mechanism and used for driving the upper blade to move back and forth. According to the mulberry leaf shearing device, the blades are driven by the driving device to cut mulberry leaves, the labor efficiency is greatly improved, and mulberry planters can be kept away from the occupational disease.

The invention discloses a simulation system used for safety and health of industrial and mining environment dust occupational diseases and an industrial and mining environment dust simulation method. The simulation system and the simulation method can realize simulation of an industrial and mining dust environment; simulation of each influence factor of an operating environment is realized by virtue of an axial flow fan, a dust emitter, a noise simulator, a temperature regulator, an air pressure controller and a humidity regulator mainly; determination analysis of each influence factor in the environment is realized by virtue of a dust sampler, a temperature sensor, a humidity sensor, an oxygen content sensor, an atmosphere sensor, a toxic and harmful gas sensor, an air speed sensor and the like; finally two analysis methods that a human respiratory organ simulator is used for simulating human respiration and organs of a mouse are used for damaging the simulation are utilized for analyzing health condition of personnel in factors and under conditions of different dust environments, temperatures and humidities, ambient pressures, oxygen contents and the like, a damage mechanism of respirable dust in the industrial and mining dust environment on a human respiratory system and deposition law of the respirable dust can be obtained by combining with animal anatomy, and finally a dust pathogenic mechanism is revealed.

The invention relates to a liquid cooling system for a device, which comprises a heat exchanger and two circulation loops including an oil circulation loop and an ice water circulation loop, wherein the oil circulation loop forms a closed loop by connecting an oil storage tank, a circulating pump, a main shaft of the device and the heat exchanger in turn through circulating oil pipes, and the ice water circulation loop forms a closed loop by connecting an ice water source and the heat exchanger in turn through circulating water pipes; and the cooling oil in the oil circulation loop and the ice water in the ice water circulation loop perform heat exchange in the heat exchanger so as to cool the oil temperature on the main shaft of the device. The liquid cooling system uses the circulation of a cooling medium ice water of the heat exchanger to take away the heat of oil cooling engine oil, and compared with the prior art, compressors and heat radiators for discharging the heat in a workshop out of the workshop are not needed. The liquid cooling system not only reduces the temperature of a working condition, but also removes a compressor radiator fan and prevents workers from being harmed by occupational diseases caused by dust and the like, and the working condition is comparatively comfortable.

The invention relates to a welding seam tracking method in a membrane wall welding process. The method comprises the following steps: additionally arranging a self-adaptive welding gun adjusting device on each welding gun; collecting video information of a welding seam of a flat steel bar and an adjacent steel pipe through a laser vision sensing device at the front part of each welding gun; transmitting the video information to a vision identification server for analysis; providing the current position and angle information of the welding seam for each self-adaptive welding gun adjusting device through the vision identification server; transmitting adjustment data to a control servo drive mechanism through each self-adaptive welding gun adjusting device, so as to adjust the position of each welding gun in a real-time manner. According to the invention, the method solves the problem that the synchronous tracking of a plurality rows of welding seams is more difficult in the membrane wall welding, overcomes the interference to an image by factors such as strong arc light reflected by a surface in the welding process, can be used for obtaining clear, stable and real-time welding seam image information, and can guarantee the processing quality; the welding production efficiency is improved, the welding quality is stabilized, and moreover, the harm of an occupational disease is alleviated or eliminated as a welder can be kept far away from a harmful work environment.