33results about How to "Avoid production safety issues" patented technology

The invention discloses an LED UV light source used for solidifying flexible or rotation or trademark printing machine UV printing ink, and the LED UV light source used for solidifying flexible or rotation or trademark printing machine UV printing ink comprises a power supply circuit board, an LED UV light-emitting module and/or LED UV ultraviolet light light-emitting lamp bead are/is mounted on the power supply circuit board; the LED UV light-emitting module and the LED UV ultraviolet light light-emitting lamp bead are respectively composed of a plurality of ultraviolet light-emitting semiconductors; the ultraviolet light-emitting semiconductor is the LED ultraviolet light-emitting device, and the light-emitting wavelength range is 200nm-500nm. The LED UV light-emitting module and the LED UV ultraviolet light light-emitting lamp bead are fixed on the power supply circuit board through the heat-conducting glue. The LED UV light source used for solidifying flexible or rotation or trademark printing machine UV printing ink overcomes the shortcomings of the conventional UV mercury lamp, the power is low, the electric energy is saved; the mercury and the harmful gas are not generated; the voltage is low, the safety problem is avoided; pre-heating is not required and the service life is long for 25000-30000 hours; the shutter part is not needed while the high temperature and pre-heating are not required, so that the production cost is reduced.

The invention belongs to the technical field of phosphotungstic heteropoly acid preparation, and particularly relates to a preparation method and application of load type phosphotungstic heteropoly acid with weak water solubility. The invention provides a method for preparing phosphotungstic heteropoly acid by dilute acidification stirring type modification; the method has the advantages that normal temperature and pressure are adopted for preparation conditions, any organic solvent is not used, the operation is simple, and the energy consumption and the cost are low; the prepared phosphotungstic heteropoly acid is small in water solubility, great in specific surface area and higher in catalytic activity. As an acid site on the surface of the phosphotungstic heteropoly acid having catalytic activity and phosphotungstic heteropoly acid redox carriers (e and II<+>) are diffused, oxidation is generated with biomass plant tissue under a hydrothermal condition; the phosphotungstic heteropoly acid is mainly applied to catalysis, biology, medicines, materials and other aspects, such as waste biomass catalytic degradation and toxic and harmful (waste) gas and sewage (wastewater) treatment in chemical industry production; a chelate of the phosphotungstic heteropoly acid has an anticancer effect, and also can be applied to electrode materials. The prepared load type phosphotungstic heteropoly acid is used for catalytically strengthening degradation of perilla stem, thus realizing efficient conversion of biomass.

The invention relates to a toluene-containing tail gas recycling process in refractory mica tape production and belongs to the technical fields of resource recycling and environmental protection. Based on the conventional absorptive method, the toluene-containing tail gas recycling process is characterized in that an organic acid salt or inorganic acid (ether) salt aqueous solution is used as absorption liquid, so that the absorbing effect is better, the production safety problem of the conventional absorption method is effectively solved, toluene is recycled and the absorption liquid is recycled without generating secondary pollution; and the environmental protection problem of the toluene tail gas is solved and the toluene solvent is effectively recycled, therefore, the toluene-containing tail gas recycling process belongs to the energy-saving emission-reducing advantage project. The toluene-containing tail gas recycling process disclosed by the invention is simple; the treated tail gas reaches the national environmental protection emission requirements; the resources are saved; the toluene solvent is recycled; and the relevant national industrial polices for encouraging the chemical industries to save energy and reduce emission are satisfied. Besides, the toluene-containing tail gas not only can be used for recycling the toluene-containing tail gas in the refractory mica tape production, but also can be popularized to the recycling of toluene-containing tail gas in other fields.

The invention discloses an aluminum wire bundling machine for bundling aluminum ingots and an operation method thereof, and relates to the field of aluminum ingot bundling equipment. The aluminum wire bundling machine for bundling the aluminum ingots and the operation method thereof are characterized in that the aluminum wire bundling machine comprises a bundling substrate, a wire drawing assembly, a wire guiding assembly, a wire clamping assembly, a wire cutting assembly and a knotting assembly; the operation method comprises the steps of material feeding, judgment of whether first-time wire threading is conducted or not, wire threading, wire feeding, wire clamping, wire returning, wire cutting, knotting, judgment of whether first-time bundling is conducted or not, judgment of whether second-time bundling is conducted or not, judgment of whether third-time bundling is conducted or not, position entering, reversing and discharging. According to the aluminum wire bundling machine for bundling the aluminum ingots and the operation method thereof, the mode that crossed bundling is arranged to be shaped like a Chinese character 'jing' is adopted, and the stability and the aesthetic property of bundling are greatly promoted; on the whole, the operation method has the advantages that the automation degree is high, the steps are simple, and organization is clear, and the problems of production safety, labor cost and labor intensity caused by overmuch manual operations are effectively avoided.

The invention discloses a screen printer with LED UV ink curing light sources. The screen printer with the LED UV ink curing light sources comprises a machine frame, wherein a plurality of printer color cells are arranged on the machine frame, the multiple LED UV ink curing light sources are arranged among the printer color cells, and the light-emitting surfaces of the multiple LED UV ink curing light sources are aligned with a printing surface of a printing material; each LED UV ink curing light source comprises a power source circuit substrate, wherein an LED UV light-emitting module and/or LED UV light-emitting beads are installed on the power source circuit substrate and are all composed of a plurality of UV light-emitting semiconductors which are LED UV light-emitting elements, and the light-emitting wave length range is 200-500 nm. The screen printer with the LED UV ink curing light sources does not generate mercury and harmful gas, the needed voltage is low, production safety problems are avoided, preheating is not needed in the use process, the service life is as long as 25000-30000 hours, a shutter component is not needed as the temperature is not high and preheating is not needed, and the production cost is reduced.

The invention discloses an intelligent inflow gas control device which mainly comprises a flow chamber, pressure guide holes, inlet oil nozzles, a packet, a sawtooth-shaped movable component and turn-off structures. The maximum quantity Q <max> of gas which is allowed to flow through the inlet oil nozzles can be set according to actual production requirements on oil wells. The intelligent inflow gas control device can normally work when the quantity Q of the gas which flows through the inlet oil nozzles does not exceed the set maximum quantity Q <max> of the gas; the intelligent inflow gas control device is turned off when the quantity Q of the gas reaches the set maximum quantity Q <max> of the gas, and fluid is no longer allowed to flow through the intelligent inflow gas control device. A working principle for the intelligent inflow gas control device includes that the gas can critically flow in the inlet oil nozzles when the flow rates of the gas in the inlet oil nozzles reach the maximum quantity Q <max> of the gas; ratios of front-end pressures P1 to rear-end pressures P2 of the inlet oil nozzles are critical pressure ratios, and the intelligent inlet gas control device can be turned off under the control of the critical pressure ratios. The intelligent inflow gas control device has the advantages that the intelligent inflow gas control device can be applied to gas-top reservoirs and gas injection production straight wells, horizontal wells and inclined wells, specified gas quantity exceeding gas flow channels can be timely closed, accordingly, economic benefits of oil fields can be increased, and the recovery ratios of oil reservoirs can be increased.

The invention discloses a high-speed precise leveling machine. A long storage space is formed through an S-shaped precise material guiding mechanism, the storage space is greatly saved, the large storage length is kept, and enough supply synchronism of stored materials is guaranteed during high-speed running of the machine. The high-speed precise leveling machine comprises rack, a back plate is vertically arranged at the upper end of the rack, and strengthening ribs are arranged between the back plate and the rack and used for strengthening connection of the back plate and the rack. An adjusting rod is longitudinally arranged on the back plate and provided with an adjustable discharging frame. A leveling machine body is arranged at the upper end of the rack and located at the front end position of the back plate. A discharging mechanism is arranged at the output end of the leveling machine body, and a material guiding mechanism is arranged at the output end of the discharging mechanism. The discharging mechanism and the material guiding mechanism are in linkage in an end-to-end manner so as to form an S shape. Running of the whole machine is more stable, and the accident rate is effectively reduced. The whole machine is operated through a control box, automatic running can be conducted, and a safe production environment is provided for production workers.

The invention provides an LB80380 intermediate compound (as shown in formula I in the specification). In the LB80380 intermediate compound, R1, R2, R3 and R4 are chosen from linear chain or branched chain alkyl group, benzyl group which is replaced by one or five R5, or R5CO independently, wherein the R1, the R1, the R3 and the R4 are identical or different; R5 is chosen from hydrogen, C1-C4 alkoxy which is replaced or not replaced, C3-C7 alkenyl alkoxy, or benzyloxy- which is replaced or not replaced. The invention also provides a preparing method and an application of the compound in the formula I. When the compound in formula I is used for preparing a compound (specific chemical formula is in the specification), reaction route raw materials and intermediate materials are low in price and easy to get, cost is low, safety is good, and thus the LB80380 intermediate compound in formula I is applicable to industrial production.

The invention discloses a UV oil paint solidification device for the spraying industry. The UV oil paint solidification device for the spraying industry comprises a rack, the rack is provided with a support plate, the support plate is provided with a UV oil paint solidification box, and a transmission device is arranged between the support plate and the UV oil paint solidification box; an LED UV oil paint solidification light source is arranged in the UV oil paint solidification box; the LED UV oil paint solidification light source comprises a power circuit board, and an LED UV light emitting module and/or LED UV ultraviolet light emitting lamp beads are installed on the power circuit board; the LED UV light emitting module and the LED UV ultraviolet light emitting lamp beads are all composed of a plurality of ultraviolet light emitting semiconductors; the ultraviolet light emitting semiconductors are LED ultraviolet light emitting devices, and the wavelength coverage of the light emitted ranges from 200 nm to 500 nm. The UV oil paint solidification device for the spraying industry does not produce mercury and harmful gases; the voltage needed is low, and the occurrence of the safety production problem is avoided; no preheating is needed in use, the service life is long and can be as long as 25000-30000 hours; the production cost is reduced due to the fact that no high temperature is needed and no preheating and no additional installation of fast valves are needed.

The present invention discloses a novel method for chemically synthesizing pristane with isophytol as a starting material. Isophytol is used, and pristane is prepared through oxidation, a methyl Grignard reaction, sulfonylation, halogenation and reduction. The method in the present invention, as compared with the conventional synthesizing method, adopts cheap raw materials, avoids high pressure hydrogenation reactions, and solves the problems of methyl migration caused by a dehydration reaction or isomerization caused by cyclization in the conventional synthesizing method. The method of the present invention is suitable for industrial production of pristane.

The invention discloses a glass-magnesium grain cored wire and a production technology of a steel for high heat input welding. The cored wire comprises an outer layer and a core, wherein the outer layer is low-carbon steel, and the thickness is 0.5-1.0mm; the core is slow release deactivation magnesium grains, and comprises a slow release agent and deactivation magnesium grains, wherein the slow release agent is glass chips, and is 5-90% of the content of the core; the deactivation magnesium grains are 10-95% of the content of the core. The cored wire is used for preparing steel for the high heat input welding. According to the glass-magnesium grain cored wire disclosed by the invention, a slow release deactivation magnesium grain cored wire using glass as the slow release agent is fed to liquid steel, so that the absorption rate of Mg is stable; the effect and the utilization rate of the Mg are high; inclusions are disperse and rich, and the inclusions containing the Mg reach 80% or above. The glass-magnesium grain cored wire has the characteristics of being simple to control, and low in production cost, and the steel for the high heat input welding can be industrially produced in a large-scaled manner.