54results about How to "Avoid physical hazards" patented technology

The invention discloses a mobile phone and a method for adjusting the brightness of a display based on the mobile phone. The method comprises the steps of: collecting images of a background environment and images of the display by the mobile phone; processing the images of the background environment and the images of the display by the mobile phone to obtain a brightness value of the background environment and a brightness value of the display; calculating the brightness difference between the brightness value of the background environment and the brightness value of the display, and comparing whether the brightness difference is the same as a preset brightness difference; and if the brightness difference is not the same as the preset brightness difference, prompting the user to adjust the brightness of the display through the mobile phone. With the method mentioned above, the invention solves the problem of improper display brightness, thus preventing a user from harm due to long-term adoption of a display with improper brightness, improving body comfort and promoting work efficiency.

The invention aims to provide a dip solution of a flame retardant dipped canvas and a preparation method thereof. The dip solution and the preparation method have the beneficial effects that a two-bath dipping system is adopted; water-based latex is adopted in the first bath, namely the water dispersion solution of epoxy resin and blocked isocyanate; the water-based latex has the advantages of environment friendliness and safety; a dichloromethane organic solvent is adopted as styrene-butadiene latex of a dispersing agent in the second bath and can effectively improve the canvas and conveyor belt covering rubber bonding property; a blended aromatic brominated flame retardant and an antimonous oxide synergistic flame retardant system are adopted, so that the bonding strength of the canvas is improved and the flame retardance of the canvas is ensured while not affecting other indexes of the dipped canvas.

The invention belongs to the technical field of smoke control, and particularly relates to filler for smoke desulfurization and denitrification and a preparation method thereof. The filler is prepared from, by weight, 4-6 parts of magnesium oxide, 5-8 parts of magnesium chloride, 0.1-0.5 part of phosphoric acid, 0.2-1 part of glass fiber, 0.5-1 part of adhesive and 0.5-1 part of foaming agent. The filler block can be directly placed in a container for smoke to pass through (desulfurization tower or denitrification tower) in smoke desulfurization and denitrification; a water spraying pipe is arranged at the upper portion of the container, and water is used for collecting and adsorbing crystal substances produced on the surface of the filler in the reaction process. The filler block is low in cost, can effectively remove nitrogen compounds and sulfur compounds in smoke and can not cause secondary pollution.

The invention discloses a thermal desorption repair method and system for organic matter polluted soil. The method comprises the following steps: firstly, pre-treating polluted soil; thermally desorbing the pre-treated soil after being measured; reducing the oil ratio of reduced soil after thermal desorption treatment to be smaller than 0.3% to pave roads, and make bricks or agricultural oil; directly cooling or indirectly cooling pyrolyzed gas obtained by thermal desorption through a fan; performing floating separation on a cooled oil-water mixture; recycling the separated organic matters; circularly cooling the pyrolyzed gas after the circulating water is cooled by air; and after two-stage rotational flow purification on noncondensable gas, doping the noncondensable gas into a fuel for resource utilization. The method disclosed by the invention can treat organic matter polluted soil harmlessly quickly, efficiently and continuously, a treatment process can be achieved by means of a skid mounted unit and automatic control, and no secondary pollution is generated in the treatment process, and meanwhile, resource utilization of recovered oil, noncondensable gas and reduced soil can be achieved, and better environmental, economical and social benefits can be generated.

The invention discloses a cyclic continuous cleaning and compacting device for a road surface. The cyclic continuous cleaning and compacting device comprises a placement board and a compacting board,wherein a support and universal wheels are arranged at the lower end of the placement board, a vertical suspension board is arranged in the middle of the lower end of the placement board, driving semi-gears are symmetrically arranged at the upper and lower parts of the front of the vertical suspension board, the back of the vertical suspension board is provided with a motor, a gear board in meshedtransmission with the driving semi-gear is arranged at the left of the driving semi-gear, a lower push rod and an upper limiting lifting rod are arranged at upper and lower ends of the gear board, the lower end of the lower push rod is provided with the compacting board, stable telescopic rods are arranged at two sides of the compacting board, an air intake cylinder is arranged at the upper end of the placement board, the upper limiting lifting rod is provided with a piston board, an air inlet channel, and an air discharge channel, the air inlet channel is provided with a filter cavity and anair intake tube, and the air discharge channel is provided with a connecting air discharge tube and a nozzle. The universal wheels travel on the ground so as to enable the device to compact the roadsurface continuously, further, the device can blow and exchange air circularly, thereby reducing dust contamination.

The invention relates to a production method for a high-toughness building template. According to the production method, the building template is prepared from recycled regenerated plastic and/or rubber serving as a main raw material, so that the production cost of the building template is lowered; in the production method, a mixture of rubber and an auxiliary is blended and granulated to obtain a rubber modified material, and the rubber modified material and plastic particles are fused and blended, so that the auxiliary, in spite of a liquid state or a solid state, can be effectively mixed with the rubber during blending and can enter the rubber; therefore, a network structure in the rubber can be released, and the processing flowability, the compatibility and the dispersion uniformity of the rubber and the plastic particles during fusing and blending are improved, and the toughness of the building template is also enhanced; furthermore, the rubber modified material is of a large particle shape, so that the environment friendliness of the technology is high. The production method has another advantage that after being rejected, the building template can be recycled to serve as a raw material for processing a new building template, so that resource recycling is realized.

The invention discloses a domestic gas barbecuing device, comprising a far infrared baking drum which can radiate far infrared rays to the surrounding after absorbing heat of smoke and fire; a fire dividing inner core is located inside the far infrared baking drum, and an interlayer between the fire dividing inner core and the far infrared baking drum is a combustion chamber; a top cover is hermitically connected with upper ends of the far infrared baking drum and the fire dividing inner core, the middle of the top cover is provided with a smoke pipe, the top cover is provided with a plurality of support arms, and the tail end of each support arm is provided with a plug pin for fixing the upper end of a barbecuing pike; a base is fixedly connected with the lower end of the far infrared baking drum by a turntable bearing; an annular tray sleeves the lower end of the far infrared baking drum, and the upper end face of the annular tray is provided with a plurality of positioning pits for limiting the lower ends of the barbecuing pikes. The domestic gas barbecuing device is compact in structure, small and exquisite, flexible, low in cost, convenient and quick to use, good in grilling effect, excellent in taste, environment-friendly and healthy, and is specially suitable for being operated and used indoors at home.

The invention discloses a recovery mechanism for dust and waste residues of stones, which comprises a machine frame, a saw blade cover box, a hollow dust absorption sheet and an exhaust machine, and is structurally characterized in that: the hollow dust absorption sheet is fixed on a lifting column; the lifting column is fixed on the machine frame; and a suction nozzle is formed at the bottom endof the hollow dust absorption sheet, passes through a hollow cavity of the hollow dust absorption sheet upwards and then is externally connected with a dust guiding pipe and finally connected to the exhaust machine. Therefore, the dust, the waste residues and the like can be collected while stone slabs are cut by a stone plate cutting machine, the dust and the waste residues are subjected to centralized treatment to prevent the dust and the waste residues from flying during stone cutting and constructors from being harmed, and the aim of environmental protection is fulfilled. The recovery mechanism can achieve the optimum effect of dust recovery and cannot cause dust flying and environmental pollution. The recovery mechanism for the dust and the waste residues of the stones can be arranged on any conventional stone plate cutting machine and has the characteristics that the recovery mechanism has a simple structure, is convenient to use and the like.

The invention discloses a movable pavement compacting device with a cleaning function. The movable pavement compacting device comprises a placement plate and a pressing plate; supports and universal wheels are arranged at the lower end of the placement plate; a suspension frame plate placed horizontally is arranged at the lower end of the placement plate; an upper electric push rod is arranged atthe upper end of the suspension frame plate, and a lower electric push rod is arranged at the lower end of the suspension frame plate in a riveted mode and is symmetrical and perpendicular to the upper electric push rod; a control box is connected to the right side of the lower end of the placement plate; a lower push rod is perpendicularly welded to the lower end of the lower electric push rod, and an upper limiting lifting rod corresponding to the lower push rod is perpendicularly welded to the upper end of the upper electric push rod; the pressing plate is arranged at the lower end of the lower push rod; stabilization telescopic rods are arranged on the two sides of the pressing plate; an air suction cylinder is arranged at the upper end of the storage plate; the upper limiting liftingrod is provided with a piston plate, an air inlet channel and an exhaust channel; the air inlet channel is provided with a filter cavity and an air suction pipe; and the exhaust channel is provided with a connection exhaust pipe and spraying heads. The movable pavement compacting device can move on the ground through the universal wheels and compacts the ground continuously at the same time, meanwhile, circular air-blowing air exchange can be achieved, and thus raised dust pollution is reduced.

The invention discloses a smokeless barbecue trolley. The smokeless barbecue trolley comprises a trolley body and a barbecue furnace arranged on the trolley body, wherein the barbecue furnace is embedded in the upper surface of the trolley body, a barbecue furnace iron plate is arranged in the barbecue furnace, braking universal wheels are arranged on the lower surface of the trolley body, a stainless steel smoke absorption port is embedded in the upper surface of the trolley body, the trolley body is provided with a fan chamber, a purification machine cabinet and a smoke port filter device communicated with the stainless steel smoke absorption port, the fan chamber is internally provided with a centrifugal fan, the purification machine cabinet is internally provided with a purification device communicated with the smoke absorption port filter device, and the lower surface of the trolley body is provided with a smokeless exhaust port communicated with the purification device. The smokeless barbecue trolley provided by the invention is reasonable in structure, easy to implement and convenient to move, and has a fume purification function, does not pollute the environment, and enables people to enjoy the barbecue without bringing body damage.

The invention relates to a processing method of composite plastic materials for high-toughness building templates. The processing method comprises the following steps: mixing and granulating a mixture of rubber and additives to obtain a rubber-modified material, and then carrying out melt blending on the rubber-modified material and plastic particles. The processing method has the advantages that on one hand, the liquid or solid additives can be effectively mixed with rubber and enter the rubber after being mixed to enable the network structure in the rubber to be fully relaxed, so that the processing fluidity, the compatibility and the dispersing uniformity of the rubber when being subjected to melt blending with the plastic particles are improved and further the toughness of the composite plastic materials is further improved; on the other hand, the rubber-modified material is large-particle-shaped, cannot cause pollution to a production workshop for melt blending of the rubber-modified material and the plastic particles and also cannot cause hazard to related operators; in addition, since the additives are uniformly dispersed inside the rubber-modified material and the internal network structure is fully relaxed by mixing, the melt blending effects of the rubber-modified material with the plastic particles also cannot be influenced even though the rubber-modified material is the large particle material.

The invention relates to a method and device for rapidly detecting contents of formaldehyde in textiles. The method comprises the following steps of: preparing sulfuric acid water solution by 35-45 parts of sulfuric acid and 35-40 parts of water by weight, and adding 0.5-1.5 parts of phenylhydrazine and 15-20 parts of water by weight to prepare first solution; dissolving 8-12 parts of anhydrous ferric chloride by weight in 88-92 parts of water by weight to prepare second solution; placing white absorbent paper on a glassware and placing a to-be-detected textile fabric on the white absorbent paper; infiltrating the to-be-detected textile fabric by the first solution and adding the second solution to the infiltrated part of the fabric; after a certain time, checking the color change of the white absorbent paper; and if the color is red, determining that the content of formaldehyde is above 30 ppm. The device comprises the glassware, the white absorbent paper and a solution adding device,compared with the prior art, the method has the advantages of being simple, high in detection in efficiency, economic and practical.

The invention relates to a liquid-spraying spinning device. The device comprises an airtight box with an air inlet and an air outlet; an air inlet device, a de-humidification device, an air pipe, a solution storage device, a nozzle, a receiving screen, a first funnel, and a first evacuating device are arranged in the airtight box; the solution storage device comprises a stirring device and a firstheating device; the receiving screen has a hollow structure. The liquid-spraying spinning device has the advantages that the liquid-spraying spinning is implemented in the airtight box, so that an operator does not need to get in contact with toxic organic solution volatile gas, and harm to the body of the operator can be avoided; the whole airtight box is airtight, so that the internal of the airtight box is maintained at a constant temperature and a humidity state, and the formed spin is uniform in character; before the spinning solution is sprayed from the nozzle, the spinning solution isheated and stirred, so that the spinning solution is uniform in character and good in fluidity, the phenomenon that the spin is different in thick-thin due to non-uniform and the spinning solution blocks the nozzle can be avoided, the receiving network is in low-temperature receiving, thereby facilitating the observation on a spinning microstructure.

The invention relates to a harmless treatment method and system for oily sludge. The method comprises the following steps: (1) carrying out crushing pretreatment on oily sludge and impurities contained in the oily sludge to obtain a to-be-treated material; (2) carrying out chemical thermal washing treatment on the to-be-treated material, so that organic matters are quickly desorbed from the surface of the oily sludge; (3) carrying out solid-liquid separation on the oily sludge subjected to chemical thermal washing treatment; (4) conveying a solid phase obtained after solid-liquid separation toa rotary high-temperature indirect thermal phase separation device for innocent treatment; and (5) treating the reducing soil obtained through rotary high-temperature indirect thermal phase separation, then outputting, pumping out pyrolysis steam generated through rotary high-temperature indirect thermal phase separation, cooling, and separating. According to the invention, harmless and resourcerecycling of oily sludge can be achieved, secondary pollution is avoided, the treatment period is short, pollutants are thoroughly removed, resource recycling of organic matter in the oily sludge canbe achieved, and good social, environmental and economic benefits are achieved.

The invention relates to the technical field of production of school supplies, in particular to a low-dust clean pencil lead, comprising 50-60 parts of graphite, 15-25 parts of clay, 5-15 parts of animal fat, 8-12 parts of original plant gum, 5-8 parts of sodium thiosulfate, and 6-10 parts of a color developing agent. The low-dust clean pencil lead has the advantages that a technical process is simple, the ratio of materials is reasonable, the addition of the fat into the materials increases product viscosity and firmness and is friendly to original writing, no dust is generated, physical harm caused by inhaling dust is maximally avoided, the application effect is significant, and this lead is convenient to popularize and use.

The invention relates to a template assembly and installation method of a wall surface aluminium material. The template assembly and installation method comprises a main body. A moving cavity is formed in the main body. A connecting cavity with a downward opening communicates with the lower end of the moving cavity. A driving motor is arranged in the rear end wall of the moving cavity. A front-and-back symmetrical moving block is arranged in the moving cavity in a sliding mode. A left-and-right symmetrical front-and-back intercommunicating stable rod cavity is arranged in the moving block. Thestructure is simple, and operation is convenient to conduct. An electric drilling device and a scraper knife device are arranged. Firstly, large cement on a building template is crushed by the electric drilling device; and then cement slag on the building template is removed by using the scraper knife device in detail; and cleaning is carried out through a sweeping mechanism after removing. Moreover, because an automatic dust sucking device is arranged, fly ash generated in the sweeping process can be automatically collected, and no harm to the bodies of operators is generated. A user can easily operate devices to clean the surface of the building template, and the cleaning efficiency is high.

The invention discloses a flour bagging device which comprises a first separation pipeline, a second separation pipeline and a falling pipeline located between the first separation pipeline and the second separation pipeline. The first separation pipeline is composed of a V-shaped pipeline located at the lower portion and a first W-shaped pipeline located at the upper portion. The falling pipe isin an S shape. The second separation pipeline is mainly composed of a second W-shaped pipeline. The lower end of the first separation pipeline is connected with a discharging pipeline which is vertically arranged. The upper end of the first separation pipeline is connected with the upper end of the falling pipeline, and the lower end of the falling pipeline is connected with the lower end of the second separation pipeline. The upper end of the second W-shaped pipeline is connected with the gas inlet end of a cyclone separator through a pipeline. A partition plate is arranged at the middle portion of the V-shaped pipeline and the middle portion of the discharging pipeline. The left side of the lower half section of the V-shaped pipeline is provided with a feeding pipeline communicating withan inner cavity of the V-shaped pipeline. The lower end of the falling pipeline is connected with a material collecting pipeline which is vertically arranged. The lower portion of the material collecting pipeline is provided with a shutter used for opening or closing an inner cavity of the material collecting pipeline. By means of the flour bagging device, dust or the dust-containing air amount generated in the bagging process can be effectively reduced.

The invention discloses a multifunctional slot wedge molding die cutting machine which comprises a body. The body comprises a base, a clamping device, a first motor and a second motor. A base is arranged below the body; the clamping device is arranged on the right side of the upper surface of the base; a second milling roller is arranged on the left side of the clamping device; a first milling roller is arranged above the second milling roller; roller shafts are connected to the ends of the first milling roller and the second milling roller; a fixing support and a base are arranged on the surface of the first milling roller; a transition section arranged between the first milling roller and the second milling roller is connected with a first sleeve; a supporting piece is arranged on the upper surface of the base; a sliding rail is arranged on the surface of the supporting piece; an adjusting rod is arranged inside the sliding rail; a fixing rod is arranged on the upper surface of the base; and dust collecting pipes are arranged on the surfaces of the first sleeve and a second sleeve. The multifunctional slot wedge molding die cutting machine has the beneficial effects that the structural design is reasonable, the machining efficiency is high, and use is convenient.

The invention discloses a constant volume diaphragm type filter press which comprises brackets, clamping screw rods, positioning blocks, filter press units, pressing screw nuts, and the like, whereinthe filter press units comprise squeezing components and filtering components; the squeezing components comprise first frames, first partition plates, support bases, piston holes, piston rods, diaphragm covers, diaphragm cushion plates, diaphragm fasteners, diaphragms and exhaust holes; and the filtering components comprise second frames, second partition plates, filtering plates, filtering cloth,feeding holes, dreg discharge holes and liquid outlet holes. By adopting the technical scheme of the invention, repeated opening and closure of the filter press units are not needed in the filter press process, so that the production efficiency can be improved; and the whole filter press units are at a normally closed state, so that a material liquid can be prevented from being splashed out whenthe filter press units are opened and closed, and body damage to production operators can be avoided.

The invention provides a chemical dredging system for a municipal drainage pipe network, and relates to the technical field of chemical dredging systems for drainage pipe networks. The chemical dredging system for the municipal drainage pipe network comprises a pipeline, a detection device and a sludge cleaning device, the detection device is connected with the pipeline, the detection device comprises a sludge height measuring assembly and a signal processor, the sludge height measuring assembly is electrically connected with the signal processor, and the signal processor is electrically connected with the sludge cleaning device. The chemical dredging system for the municipal drainage pipe network is simple in structure, the deposition position of a pipeline can be determined in real time, and it is guaranteed that the pipeline is dredged in time; dangers during manual dredging are prevented, and physical harm caused by oxygen deficit suffocation or harmful gas when workers enter the pipeline is avoided; meanwhile, the viscosity of the sludge is reduced by using a chemical agent, and the sludge is washed away to a sewage treatment plant by using water pressure in the pipeline, so that the cost is reduced, and the sewage cleaning efficiency of the chemical dredging system for the municipal drainage pipe network is improved.

The invention discloses a toluene insoluble material experiment apparatus with recovery function. The apparatus comprises a liquid adding device, a recovering device, a waste gas filtering device andan experiment device, wherein the experiment device comprises a condensing device, a reaction device and an evaporation device, the condensing device is connected to the reaction device, the reactiondevice is connected to the evaporation device, the liquid adding device and the recovering device are connected to the experiment device, the experiment device is arranged in a reaction bin, the outershell of the experiment device is provided with a liquid adding port, and the reaction bin and the recovering device are connected to the waste gas filtering device. According to the present invention, the apparatus has the simple structure, and can filter volatile gases in the reaction chamber and other spaces so as to avoid the unorganized discharge; and the multiple apparatuses can be subjected to modularized connected in parallel, such that the requirements on the operator are greatly reduced, and the whole process is completely automated in the experiment so as to reduce the toluene solvent contact time of the personnel, protect the health of the operator and provide the important effect in occupational disease protection.