76results about How to "Reduce Occupational Hazards" patented technology

The invention provides an intelligent luggage and postal article detection system which comprises an intelligent detection area, an intelligent identification area and a manual inspection area, wherein the intelligent detection area, the intelligent identification area and the manual inspection area form a safety check area. The intelligent detection area, the intelligent identification area and the manual inspection area are arranged in three different areas respectively. The intelligent detection area is provided with a transmission device, an X-ray image acquisition device, an X-ray image automatic comparison and identification device and a labeling device; the intelligent identification area is provided with a label identification device; the transmission device is used for transmitting luggage and postal articles to be detected; the X-ray image acquisition device is used for obtaining X-ray images of the luggage and postal articles; the X-ray image automatic comparison and identification device is used for carrying out automatic comparison and analysis on the obtained X-ray images of the luggage and postal articles and X-ray images in a database to judge whether the obtained X-ray images of the luggage and postal articles have forbidden articles; the labeling device is used for attaching electronic labels to the luggage and postal articles having the forbidden articles; and the label identification device is used for automatically identifying the luggage and postal articles having the electronic labels.

The invention relates to a wet granulation method of carbon black. The wet granulation method comprises the specific following operation steps: step 1, cracking acetylene gas so as to form a powdery carbon black raw material and collecting industrial exhaust gas generated by the cracking; and step 2, granulating the powdery carbon black raw material, directly burning the industrial exhaust gas collected in the step 1 by virtue of a hot-blast stove device to generate hot-blast air, and drying carbon black granules by virtue of the hot-blast air generated by the burning. A wet granulation manufacturing system of carbon black comprises an acetylene gas cracking device, a carbon black drying device as well as an exhaust gas collection device and the hot-blast stove device, wherein an exhaust gas outlet is formed in the acetylene gas cracking device; the exhaust gas collection device is provided with a collection tank which is communicated with the exhaust gas outlet and a combustible gas inlet is connected to the collection tank. According to the wet granulation method, the carbon black granules are dried in a manner of burning exhaust gas so that the resources can be recycled and the purposes of energy conservation and emission reduction are achieved. According to the structural design of the system, the heat is supplied by virtue of the exhaust gas and thus the resources can be saved.

The invention relates to a novel full-automatic numerical control board packaging machine which comprises a pole plate conveying device, a pole plate finishing device, a pole plate lifting device, a pole plate absorbing device, a clapboard paper conveying device, a clapboard paper cutting device, a board packaging device, a pole plate group conveying device and a stand, wherein the pole plate conveying device is arranged at the left lower part of the stand; the tail end of the pole plate conveying device is provided with the pole plate finishing device; the pole plate lifting device is arranged under the stand; the pole plate absorbing device is arranged above the pole plate lifting device; the clapboard paper conveying device is arranged at the right upper part of the stand; the tail end of the clapboard paper conveying device is provided with the clapboard paper cutting device and the board packaging device; the pole plate group conveying device is arranged just under the clapboard paper conveying device. The novel full-automatic numerical control board packaging machine not only is simple in structure, compact in volume and small in occupied land area and improves the environment of a workplace, but also greatly improves the board packaging efficiency and the board packaging quality.

The invention relates to a polishing solution for processing surfaces of copper and copper alloy by replacing a copper pickling process. The polishing solution consists of the following components in percentage by volume: 10 to 40 percent of hydrogen peroxide, 2 to 5 percent of organic brightening agent, 0.8 to 2.4 percent of concentrated sulfuric acid, 3 to 8 percent of hydrogen peroxide stabilizing agent and the balance of water. The polishing solution does not comprise chromic acid, nitric acid or hydrochloric acid, smoothens the surface of the copper or the copper alloy through chemical polishing, and ensures complete luster on the surface subjected to chemical polishing.

The invention discloses a medium pipe deruster. The medium pipe deruster comprises a traveling trolley and a derusting frame, wherein the traveling trolley is a mining flat carrier vehicle; a transmission motor, two driving wheels and two driven wheels are mounted on the traveling trolley; a pipe is placed on the traveling trolley; and a roller is driven by motors on the traveling trolley to rotate so as to drive the pipe to rotate. Two small motors are arranged on the derusting frame; a brush head made of a steel wire head is mounted on one of the motors; and when the medium pipe is passed below the brush head of the derusting frame, the derusting motors drive the brush head to operate with high speed to remove the rust and dirt of a workpiece so as to finish the derusting operation. The medium pipe deruster has the benefits of simple structure, easy production, convenience for mounting, easy transportation and assembly, high derusting efficiency and excellent effect, accords with the pipe mounting construction characteristics, and satisfies the pipe construction derusting requirements.

The invention provides an automatic dust falling sheet metal maintenance platform. The automatic dust falling sheet metal maintenance platform comprises a platform surface, a fixing frame and a dust falling groove. The platform surface comprises a hollowed-out grille net and artificial turf bars laid on the periphery of the edge of the upper surface of the hollowed-out grille net, the grille net is supported through the fixing frame, a dust removing groove is arranged below the hollowed-out grille net, and an exhaust fan is arranged at the bottom of the dust removing groove and connected with a collecting box through a pipeline. According to the automatic dust falling sheet metal maintenance platform, duo to design of the hollowed-out platform surface and the dust falling groove, scrap iron dust generated when sheet metal is maintained is collected, the amount of the scrap iron dust wafting in air is reduced, the quality of air in a work zone is greatly improved, and the degree of occupational hazards to operation personnel is reduced.

The invention discloses a full-automatic impregnation cleaning line, which includes nine stations; the full-automatic impregnation cleaning line provided by the invention can 1) reduce production labor intensity and reduce occupational hazards to operators; 2) clean before solving The sewage discharge pollution problem caused by the waste water treatment system can reduce the discharge of waste water, turn the waste water into waste residue and discharge it, which is convenient for transportation and treatment. The actual waste water can reach within 3%-5% of the discharge; Infiltration and then cleaning turnaround time in the middle of assembly, greatly saving time, reducing manpower input and cost, can save more than 20% of production cost.

The invention discloses a deep hole blasting filling method. The deep hole blasting filling method includes the steps that the bottom of a blast hole is filled and blocked with cement, and meanwhile the bottom resistance line is reserved; a pre-designed amount of first explosive is loaded to the bottom of the blast hole, and meanwhile a first double-detonator and detonating cord igniting explosive package and a first detonator are loaded into the blast hole along with the first explosive; the position on the top of the first explosive is filled with an appropriate amount of river sand; a pre-designed amount of second explosive is continuously loaded to the top of the river sand, and meanwhile a second double-detonator and detonating cord igniting explosive package and a second detonator are loaded into the blast hole along with the second explosive; after all the explosive is loaded into the blast hole, the top of the second explosive is filled with fine river sand, and then two water bags are hoisted into the blast hole and press on the top of the fine river sand. The deep hole blasting filling method solves the problems that according to an original filling scheme, the number of plug holes is large and a large amount of dust is generated.

The invention relates to a high voltage insulating rod detection table used for insulating rod electric leakage detection. The high voltage insulating rod detection table comprises a pair of fixtures used for clamping an insulating rod, and an insulating base used for fixing the fixtures. Each fixture comprises an upper clamping plate and a lower clamping plate, wherein the upper clamping plate and the lower clamping plate can be closed and opened, opposite faces of the upper clamping plate and the lower clamping plate are respectively provided with clamping holes, the clamping holes in the upper clamping plate and the clamping holes in the lower clamping plate correspond to each other one to one, the lower clamping plate is fixed to a metal base, and the middle of the metal base and the upper end of the insulating base are fixed. The high voltage insulating rod detection table can conduct electric leakage detection on insulating rods in batches, and the detection efficiency is greatly improved; meanwhile, the corona phenomenon and the ozone pollution and emission phenomenon are greatly reduced, and occupational hazards caused to staff in the detection process are reduced.

The invention belongs to the technical field of mechanical intelligent manufacturing, and relates to a welding robot for welding the side plate or bottom plate of a large ship cabin, in particular toan intelligent welding robot capable of walking and turning and capable of striding a low wall. A forward rotating leg swings forward, a rotating servo motor drives the traveling wheels, and the robotmoves forward and strides the low wall. A front piston rod contracts upwards to drive a front lifting leg to lift upwards, the rotating servo motor drives the traveling wheels, and the robot moves forwards and strides the low wall. A rear piston rod contracts upwards to drive the rear lifting leg to lift upwards, the rotating servo motor drives the traveling wheels, and the robot moves forwards and strides the low wall. A rear rotating leg swings backward, the rotating servo motor drives the traveling wheels, and the robot moves forwards and strides the low wall. The robot can walk, can stride the low wall, can turn, and can be fixedly connected with a steel bottom plate, the welding speed is fast, the working efficiency is high, the occupational hazard to workers is lightened, and the labor cost of a factory is reduced.

The invention discloses environment-friendly fiber framework material impregnation liquid, a preparation method thereof and an application of the liquid. The liquid comprises, by weight, 70-120 partsof rubber latex, 5-50 parts of blocked isocyanate, 0.5-5 parts of ammonium hydroxide and the rest water, and the total solids content of the impregnation liquid is 8%-30%. The prepared impregnation liquid does not contain hazardous substances such as resorcinol and formaldehyde and cannot pollute environments and effectively reduces occupational hazard. The impregnation liquid is simple and convenient in preparation process step, impregnation processes are easily operated, impregnated fiber and rubber has excellent bonding effect, and the impregnation effect of the liquid is better than that of traditional RFL (resorcinol and formaldehyde latex).

The invention discloses a preparation method of 3-nitro-N-ethyl carbazole, which is characterized by comprising the following steps: putting a sodium hydroxide solution, 3-nitro carbazole, a catalyst, part or all of ethyl bromide into a three-necked flask with a stirring and reflux condenser, slowly heating the obtained object to 35-40 DEG C, and dropwise adding the rest of ethyl bromide into the flask at the temperature; after the dropwise adding is completed, carrying out heating on the obtained mixture with the reaction, and controlling the temperature to be always below a boiling point of a system; determining that the reaction is completed when the 3-nitro carbazole conversion rate reaches more than 99.5%; carrying out cooling crystallization, filtration, washing and drying on the obtained product so as to obtain 3-nitro-N-ethyl carbazole. The method disclosed by the invention has the advantages that benzene is added as a solvent in general alkylation reactions, but no benzene is added in the invention, therefore, the application amount of ethyl bromide is relatively less, so that the method is simple in process, high in conversion rate and small in occupational hazards.

The invention relates to an alternating-current withstand voltage support used for electric leakage detection of insulating rods. The support is composed of a base, supporting legs vertically arranged on the two sides of the base, a transverse rod connected to the two supporting legs and clamping bases distributed on the transverse rod at equal intervals, wherein each clamping base is composed of two clamping parts which are symmetrical left and right, and a clamping groove is formed between every two clamping arts. Due to the implement of the technical scheme, electric leakage detection can be performed on insulating rods on a large scale, the detection efficiency is substantially improved, and the support can be widely used for withstand voltage detection on high-voltage insulating rods in various fields of power generation, conveying, distribution, transformation and the like in the power industry. The insulating rods can be stably clamped by the clamping bases on the transverse rod, it is guaranteed that the electric shock jumping phenomenon will not happen to the insulating rods in an electric leakage detection test when electric leakage happens, and occupational hazards to staff are reduced in the detection process.

The invention discloses a tunnel mold spraying device and mold spraying method, and belongs to the technical field of tunnel construction. The tunnel mold spraying device comprises a sprayer assembly,a template mechanism and an injection system. In the tunnel construction process, the template mechanism is matched with a tunnel excavation rock face to form a mold cavity, the sprayer assembly is arranged above the mold cavity, and a sprayer faces the mold cavity. The sprayer assembly is connected with the injection system, and concrete filled with an accelerator is pumped to the sprayer assembly, and the sprayer assembly injects the concrete into the mold cavity at an angle not perpendicular to the rock face, so that the concrete solidifies in the mold cavity to form a support layer. According to the device, the problem of concrete rebound in the grouting process is effectively solved, and the environmental quality of a construction site is improved.

The invention discloses an automatic gelatin pill mixing and toning device and method. The automatic gelatin pill mixing and toning device comprises a frame body, a dosing barrel, a tone detector, a mixing barrel, a stirrer, a pump valve, a discharge pipe, and a delivery pipe, wherein the dosing barrel and the tone detector are fixedly arranged above the frame body; the mixing barrel is fixedly arranged below the frame body, one end of the stirrer extends into the mixing barrel, the other end of the stirrer is in transmission connection with a motor, and the pump valve and the discharge pipe are communicated with the lower part of the mixing barrel; one end of the delivery pipe is communicated with the dosing barrel, and the other end of the delivery pipe is positioned above the mixing barrel; a thermoscope, a viscometer and a tone monitor are arranged in the mixing barrel; the dosing barrel and a raw material and excipient barrel are communicated through a feed pump and a feed pipe; and the tone monitor, the motor, the thermoscope, the viscometer and the pump valve are electrically connected with the control unit. By introducing chromatic aberration monitoring, automatic dosing and mixing can be realized through an electrically controlled pump valve, a self-organized and managed gelatin pill mixing and dosing intelligent system can be formed by means of internet of things technology, the occupational hazard can be reduced to the maximum extent, the consumption of human resources can be decreased, and the near-net unmanned production can be realized.

The invention relates to an impact device with electric harmonic beating moving to and fro linearly. The impact device comprises a moving iron core, a fixed iron core, a coil, a sliding bush, an impact rod, an impact head, a locating spring, a kick spring, a machine frame and a power supply circuit, wherein, a silicon steel sheet of the fixed iron core is arranged with the plane of the silicon steel sheet along the impact rod and vertical to the pole surface of the moving iron core, the impact rod driven directly by the electric power and the alternative forces of the rebound of the impact and the return of the spring and is compelled to carry out a harmonic beating and reciprocating and linear impacting movement. Compared with the piston-typed impact equipment, the impact device of the invention has remarkable energy conserving, high impact frequency, great impact force and easy and simple manufacturing. The impact device is applicable to a rock drill, a drop pile hammer, a stone crasher, a vibrator and various impact tools.

The invention discloses a mobile metal liquid automatic casting device. The mobile metal liquid automatic casting device comprises operation rails symmetrically arranged on the ground or a mounting foundation of a workshop, and a carrying trolley arranged on the operation rails; a mold bracket and a mold temperature control device are arranged on the carrying trolley; a casting mold and a mold opening and closing control mechanism are arranged on the mold bracket; the mold opening and closing control mechanism is connected with the casting mold so as to control opening and closing of the casting mold; a suspension bracket is arranged on the carrying trolley across the mold bracket; a casting mechanism and a liquid supply pump connected with the casting mechanism are arranged on the suspension bracket; and the mold temperature control device is connected to the casting mold through a heat exchange pipeline. Automatic casting of metal solutions is achieved, the casting mold can be preheated and subjected to accelerated cooling, automatic opening and closing of the casting mold and casting demolding are controlled, the casting quality is stable and reliable, continuous operation can be conducted, safety and convenience are achieved, the operator safety is greatly improved, the labor intensity is relieved, casting time and cooling time are shortened, and the casting production efficiency is improved.

The invention relates to a production technique of fudosteine. The production technique comprises the following steps: dissolving L-cysteine in purified water by stirring, adding potassium persulfate and propenol, and stirring to react for 5+ / -1 hours while controlling the temperature at 30+ / -2 DEG C; distilling under reduced pressure to remove the solvent; adding ethanol into the residues, stirring for 1.5 hours, and filtering to remove insoluble substances; concentrating the filtrate until a small amount of solid precipitates, and stopping concentrating; cooling, crystallizing by stirring at 30+ / -2 DEG C for 3+ / -1 hours until abundant white solid appears, and carrying out centrifugal filtration; washing the filter cake with anhydrous ethanol twice, and drying to obtain a fudosteine crude product; and refining and drying to obtain the fudosteine. By using ethanol-water as the solvent, the technique has the advantages of high use safety, low cost, mild reaction conditions and high atom economic benefit, and conforms to the requirements for green chemistry. The product yield is up to 95% or above, the content is up to 99.9%, and the maximum single impurity content is lower than 0.01%. Besides, the technique reduces the occupational hazards for employees, and is more beneficial to mass production.

The invention relates to a dismounting device and method for a seamless steel tube cold rolling expansion-stop plug. The dismounting device comprises a workbench, a front baffle plate, a rear baffle plate, a jack, an end adjusting ring gasket, a front support, a rear support, a heating sleeve and a plug fixer. According to the disassembling method, through the continuous heating effect of saturated steam, and the function of axial displacement of the expansion-stop incarceration plug under the action of axial positive pressure is achieved through a trace gap formed by utilizing the differenceof different materials, diameters and heated expansion coefficients of the plug and the seamless steel tube. The method realizes nondestructive dismounting, is convenient in operation mode, is safe and reliable, and is practical and efficient.

The invention discloses a spraying device for the inner wall of a pipe body and belongs to the technical field of coating equipment. The spraying device is characterized by comprising a base, wherein the base is provided with a motor; a rotary shaft is connected on an output shaft of the motor and is axially provided with two sliding grooves, namely a sliding groove A and a sliding groove B; the sliding groove A and the sliding groove B are provided with sliding block rings which are in axial sliding matching with the sliding groove A and the sliding groove B; the sliding block rings are externally provided with rotary discs fixedly connected with the sliding block rings; 1-3 spraying guns with outward spraying openings are uniformly distributed on each of the rotary discs; and the sliding block rings are also fixedly connected with telescopic pushing-pulling rods. The spraying device disclosed by the invention has the advantages that the structure is simple and compact, the machine operation is adopted as a main mode, and the manual matching is adopted as an auxiliary mode, so that the labor intensity and the occupational hazard for operators are obviously reduced, the production efficiency is improved and the cost is reduced; and a sprayed pipe body is good in quality and long in service life.

The invention relates to compact liner coating equipment. The compact liner coating equipment comprises an adhesive pushing module, an adhesive storing module, a spray gun base and a rotating spray gun, wherein the adhesive pushing module consists of a cantilever spray rod, a bottom disc and a driving mechanism, and the driving mechanism is mounted on the bottom disc and consists of a motor, a speed reducer and a linear die set; the adhesive storing module consists of an adhesive storing sleeve, an adhesive storing barrel flange block, a dismountable sliding block seat, a ball head, a piston, an adhesive storing barrel upper fixing block and an adhesive storing barrel lower fixing block, and is mounted in the cantilever spray rod; the dismountable sliding block seat is connected with the linear die set; one end of the piston is inserted into the adhesive storing sleeve; the spray gun base consists of a spray gun baseplate, a central adhesive pipe, a compressed-air pipe and a fast-inserting type pipe joint, wherein one end of the central rubber pipe is connected with a quick change joint in the center of the adhesive storing barrel flange block; the compressed-air pipe is connected to the baseplate through the fast-inserting type pipe joint; the baseplate is connected with the cantilever spray rod; the rotating spray gun is mounted on the specially-made spray gun baseplate. According to the compact liner coating equipment disclosed by the invention, the accuracy and the efficiency for manufacturing a liner of an engine can be improved.

The invention discloses a nitrogen closed suction type pneumatic conveying system for lead powder. The system comprises a lead powder storage bin (1), a lead powder discharging device (3) arranged below the lead powder storage bin (1), a lead powder transmitter (4), a delivery pipeline (5), a gas-solid separating device (6), an ultrafiltration device (7), a lead powder bin (8), a nitrogen return pipeline (9), a vacuum pump device (11), a nitrogen storage tank (13), a system control device (15) and the like which are sequentially connected; a level gage (2) is arranged in the lead powder storage bin (1); a pressure sensor (10) is arranged on the nitrogen return pipeline (9); a nitrogen generating device (12) is arranged on a nitrogen closed cycle system; the nitrogen storage tank (13) is provided with a nitrogen concentration detector (14). According to the system, the the equipment number and equipment maintenance are reduced, and the occupational hazard caused by conveying the lead powder in the production process of lead-acid storage batteries is effectively eliminated or reduced.

The invention provides a powder coating for a low-temperature solidified wine bottle and a preparation method thereof, and belongs to the technical field of coatings. The preparation method comprises the following steps: mixing a bisphenol-A epoxy resin curing agent, a flatting agent, a defoaming agent, nano-grade silicon dioxide, an amide charging additive 519, a pigment and a filler at a high speed; extruding by virtue of a screw extruder; carrying out graded grinding on the extruded semi-finished product by virtue of an ACM grinding mill; and screening through a 160-180-mesh screen. According to the method, low-temperature solidified food-grade powder is coated, the powder coating is molten and solidified on the surface of a wine bottle, and the powder falling in the melting process can be recycled, so that the problem of traditional liquid coating waste can be solved; the used raw materials are environment-friendly and odorless, so that the working environment of operators can be greatly improved, and the potential hazards of occupational diseases can be reduced; and once coating of the powder coating can be 30-300mm, so that the production cost can be reduced, and the working efficiency can be improved. The powder coating is a novel environment-friendly pollution-free product.

The invention discloses a solid adsorbent tube pretreatment automatic sample preparation instrument which belongs to the technical field of experimental auxiliary equipment. The solid adsorbent tube pretreatment automatic sample preparation instrument comprises a box, a tube body cutting and dumping device, an automatic sample adding and capping device and a control cabinet. The tube body cuttingand dumping device comprises a tube body jacket, a spring, a rubber gasket, a fixing bolt, a protection cover, a screen, a funnel, a cutting ring and a sensing sample tray. The automatic sample addingand capping device comprises an analytical liquid bottle, a sample introduction pump tube, a peristaltic pump, a manipulator cross beam, a sample introduction tube, an automatic sample adding manipulator, a sample introduction needle, an automatic capping manipulator, a waste drainage tube, a waste liquid tank and a needle washing groove. The solid adsorbent tube pretreatment automatic sample preparation instrument integrates functions of cutting and dumping of a solid adsorbent tube, analytical liquid automatic sample introduction and automatic capping together, relieves manpower, saves time, reduces harm of toxic and harmful substances to person, avoids influence on health of operators performing experiments for long time and reduces occupational hazard. The solid adsorbent tube pretreatment automatic sample preparation instrument provided by the invention aims at avoiding harm to person under the premise of guaranteeing experiment accuracy, and improves experiment efficiency.

The invention relates to the technical field of construction equipment, in particular to a muddy water bypass device for a miniature pipe jacking machine. A water inlet pipeline and a water outlet pipeline are arranged on the lower side of a muddy water bin of the pipe jacking machine, a first four-way valve is arranged in the water inlet pipeline, a second four-way valve is arranged in the wateroutlet pipeline, wherein the first four-way valve is provided with a first water inlet, a first water outlet, a pressurizing opening and a first connecting opening, the pressurizing opening communicates to the muddy water bin of the pipe jacking machine through a pressurizing pipeline, a pressurizing valve is arranged at the pressurizing pipeline, and the second four-way valve is provided with a second water inlet A, a second water inlet B, a second water outlet and a second connecting opening. According to the muddy water bypass device, the structure size of the device can be reduced, and thein-machine space is saved; the universality and adaptability of the device are improved, the use is reliable, the manual labor amount is reduced, the occupational hazards are reduced, the structure is simple, a four-way ball valve is adopted for replacement to complete switching of three loops of a mud feeding and discharging mode, a bypass mode and a flushing mode, and the structural size of thedevice is greatly reduced.

The invention discloses novel concrete mold spraying equipment. The novel concrete mold spraying equipment comprises a carrier mechanism, a big arm mechanism, a template mechanism and a nozzle assembly. The carrier mechanism is provided with the big arm mechanism, the big arm mechanism comprises a big rotary arm, and the template mechanism and the nozzle assembly are arranged at the front end of the big rotary arm. The template mechanism is capable of forming a mold cavity with an excavation rock face, and the nozzle assembly is capable of adjusting the injection angle / direction relative to the mold cavity. By using a mold spraying trolley, zero rebound can be achieved, the amount of concrete can be reduced by 20%-40% in the same working range, the amount of setting accelerators is reduced, and economic and social benefits are remarkable; the surface finish quality of the concrete is high, post-shaping is no needed, the construction period is shortened, and the production efficiency isgreatly improved; and the mechanical construction can be remotely operated in the whole process, the construction safety is greatly improved, the dust intake of operators can be effectively reduced,and the probability of occupational diseases such as silicosis is reduced.

The invention discloses a multifunctional protective office table based on internet of things, and relates to the field of office equipment. The office table comprises an office table main body, wherein an article placing part, an office part and a protective part are arranged on the office table main body; the office part is provided with a sub office table main body; and the protective part is provided with a display screen, control buttons, an electromagnetic radiation inducing device, a distance detection device, a noise detection device, a temperature and humidity detection device and a vibrating reminding device. According to the multifunctional protective office table provided by the invention, on the basis of the reasonable use of the space of the office table and by acquiring electromagnetic radiation value information in an office, a distance between working personnel and a computer, a noise decibel value in the office as well as temperature, humidity and continuous office hour information in the office in real time, the worker (the working personnel) can conveniently master environmental information in the office intuitively, so that harm, which can be easily caused on the working personnel due to a bad working environment and a bad working habit, can be relieved; and by virtue of the vibrating reminding device, the working personnel can be reminded in a vibrating mode, so that the physical health of the working personnel is protected and occupational hazard of the office can be reduced.

The invention discloses a catalyst-free synthetic method of a profenofos original medicine, and relates to the field of preparation of the profenofos original medicine, in the synthesis process, a catalyst is not used, a reaction kettle is completely sealed, nitrogen is introduced to increase the gas-phase pressure to 0.1-0.3 MPa, the volatilization of bromopropane is reduced, and the concentration of the bromopropane in a reaction liquid is maintained, so that the reaction is carried out in the positive reaction direction, the conversion rate of an onium salt and the bromopropane is ensured,the 96% profenofos original medicine can be obtained by water washing, desolventizing and other post-treatment, no DMF (dimethyl formamide) is used as a catalyst in the synthetic method of the profenofos, and the effect of reducing occupational hazard factors is realized.