55results about How to "Avoid or reduce the occurrence of" patented technology

The invention provides a heat treatment system and method using superheated steam as a heat transfer carrier. The system comprises a steam boiler, a superheated steam generator and a heat treatment boiler, wherein the steam boiler generates saturated steam having the corresponding relationship of the temperature of 100 DEG C-200 DEG C and the pressure, the superheated steam generator heats the superheated steam with the temperature ranging from 100 DEG C to 200 DEG C to 200 DEG C-1,000 DEG C, the heat treatment boiler is inflated with the superheated steam with the temperature ranging from 200 DEG C to 1,000 DEG C, the inflated superheated steam serves as a heat transfer medium, the steam boiler and the superheated steam generator are both connected with the heat treatment boiler, and the steam boiler is connected with the superheated steam generator. According to the heat treatment system and method using superheated steam as the heat transfer carrier, the application range is enlarged. The saturated steam, the superheated steam and the heat treatment boiler are organically connected into a whole, the low-temperature superheated steam, the medium-temperature superheated steam and the high-temperature superheated steam can be produced, the application range is wide, the temperature rise is fast, and the temperature in the boiler is uniform; and through design of a cyclic recycling system, energy can be saved, and the emission load is reduced to the great extent.

The invention discloses a low-temperature magnetic cooling erbium-based bulk amorphous material and belongs to the field of magnetic cooling alloys of functional materials. The low-temperature magnetic cooling erbium-based bulk amorphous material is characterized by comprising the following chemical components in percentage by atom: 55 to 65 percent of Er, 14 to 24 percent of Al and 18 to 28 percent of Co. The material can form bulk amorphous alloys under a common suction casting condition, has magnetic entropy change and magnetic cooling capability higher than those of metal Er, has a cost price lower than magnetic cooling materials such as Er-based crystalline and giant magnetic material Gd5Si2Ge2, of the same magnetic entropy change and magnetic cooling capability and is a high quality magnetic cooling material in a 2 to 50 K range.

The invention discloses a pharmaceutical preparation for avoiding or reducing generation of N-nitrosamine genotoxic substances, and belongs to the technical field of medicine. According to the invention, a suitable antioxidant is used in combination with effective components of a drug using or producing a substance or precursor substance that can degrade into N-nitrosamine genotoxic components during production and storage of active pharmaceutical ingredients or preparations, so that the generation of the N-nitrosamine genotoxic substances in the drug is effectively avoided or reduced; the drug safety is obviously improved.

The invention discloses a feeding system applicable to super-large scale atomic layer deposition. The system comprises a silicon carrier and a first end cover flange and a second end cover flange which clamp the silicon carrier; the first end cover flange and the second end cover flange are connected into a whole through multiple shafts vertically penetrating through the first end cover flange andthe second end cover flange, and one ends of the shafts penetrate through the first end cover flange and are connected with the second end cover flange; the other ends of the shafts stretch out of the first end cover flange, a spring sleeves an extension part, shaft caps are arranged at the ends of protruding ends, and springs are limited at the protruding ends of the shafts. Accordingly, the silicon carrier serves as one part of an inner cavity, the deal load is greatly reduced, and transfer is light; meanwhile, the feeding system is heated directly, the heating rate can be obviously increased, the heating time is shortened, and the heat utilization rate is high.

The invention relates to a low-NOx and high-calorific value gas burner which comprises an inside throat inlet, an outside throat inlet, a main auxiliary combustion-supporting air channel, three stages of air supply functional components formed by an inside air nozzle, a middle air nozzle and an outside air nozzle, two stages of gas supply functional components formed by an inside gas spraying gun and an outside gas spraying gun and a front panel on which air supplying component mounting holes are reasonably distributed; forward spray orifices and lateral spray orifices are densely distributed on a head of a gas spraying gun; a mode that air and gas are uniformly distributed in pairs in two stages and in a misplacing manner respectively to supply gas to a main combustion region is adopted, so that uniform mixing of the gas and the air and rich combustion with ultra-low NOx generation quantity are facilitated; and by combining with a mode of supplying the gas toward the nearby of the cavity wall by adopting the third stage, a small part of gas which is not fully combusted in the main combustion region performs weak combustion which is beneficial to increasing the burnout degree of the gas in a region sufficient in combustion-supporting air, so that CO zero emission is realized, a high-calorific value gas boiler can be wholly ensured to reach a waste gas standard with low nitrogen and without CO emission, and basic guarantee is provided for application of high-calorific value gas to the gas boiler.

The invention discloses a big bearing-type stranded rope machine and an automation control technology thereof. The big bearing-type stranded rope machine mainly consists of a thread guide die holder, a ceramic thread guide die, frame flange bearings, frame flanges, a barrel, barrel big bearings, a base strip and a sand rack, wherein the ceramic thread guide die is arranged in the thread guide die holder; insulating materials are respectively arranged at the contact positions of the frame flange bearings at both ends of each frame flange and the sand rack and the contact positions of each barrel big bearing block, a safety hood support seat and the base strip, and moreover, 24V safety voltages are respectively accessed to the barrel big bearing blocks. When production is abnormal, a logical operation is performed through circuit control and a host shut-down command is sent out, and then, a main motor and the big bearing-type stranded rope machine stop working. The big bearing-type stranded rope machine disclosed by the invention is simple in control circuit, high in reliability and convenient in maintenance and can be used for avoiding or reducing waste products, therefore, the product quality is ensured.

The invention discloses an indoor unit of an air conditioner and the air conditioner. The indoor unit of the air conditioner comprises an air flue assembly, an air guide assembly and a sealing assembly, wherein an air flue is formed in the air flue assembly; the air flue assembly is provided with an air inlet and an air outlet, which communicate with the air flue; a heat exchanger is arranged in the air flue; the air guide assembly is positioned in the air flue; the air guide assembly is equipped with an air guide hole which communicates with the air inlet and the air outlet; the air guide assembly is rotatably connected to the air flue assembly, so that a gas flow direction from the air guide hole to the air outlet is changed; and the sealing assembly is arranged between the air guide assembly and the air flue assembly to seal the air flue between the air guide assembly and the air flue assembly. According to the technical scheme adopted by the invention, the sealing effect between the air flue assembly and the air guide assembly is good, so that air outlet efficiency is improved, and energy consumption is reduced.

The invention discloses a gas-liquid reaction method and a special device. During the reaction, a raw material liquid enters a tubular reactor from a raw material liquid inlet of the tubular reactor, and raw material gas is fully mixed with a reaction liquid or the raw material liquid at a mixed flow circulating pump inlet and subjected to a gas-liquid reaction in a circulating pipeline and the tubular reactor along the flow path; energy supplement is performed by the aid of a ripening reactor outer jacket at the initial stage of the reaction, and automatic energy supplement is set after the reaction system is stabilized; forced circulating reaction is adopted. The working performance is good, the yield is effectively increased, and byproducts are reduced or avoided.

The present invention discloses an antimony-based compound flame retardant for silicate fiberboard and a preparation method thereof, and belongs to the fields of material and chemical engineering. The antimony-based compound flame retardant comprises the following components by weight: 50-60 parts of antimony trioxide, 20-30 parts of calcium silicate, 4-10 parts of zinc borate, 3-10 parts of hydrotalcite and 3-5 parts of a modifier. The antimony-based compound flame retardant is prepared by the steps of antimony trioxide modification, raw material mixing and screening. The present invention employs antimony trioxide, zinc borate, hydrotalcite and modifier for the preparation of the compound flame retardant, and improves the refractoriness and processing property of the fireproof plate in reducing the amount of antimony. Meanwhile, the raw materials do not contain halogen or heavy metals such as lead and mercury, and do not produce harmful gases or waste in usage.

A method of manufacturing three-dimensional objects layer by part. According to the cross-sectional information projected on the powder layer by the three-dimensional CAD model of the three-dimensional object, the energy beam performs selective scanning on the corresponding powder material layer by layer to finally obtain the three-dimensional object. The method comprises the following steps: dividing the three-dimensional object into a part A and a part B, wherein the section area of ​​the A section is S1, and the section area of ​​the B section is S2; the A is manufactured upside down by a layer-by-layer manufacturing method; the completed A section is manufactured Put it upside down, continue to use the method of powder layer-by-layer manufacturing, and implement the manufacture of part B on the cut surface of part A. The invention can effectively avoid or reduce the generation of overhanging surfaces in the process of manufacturing especially metal three-dimensional objects, and improve the precision of the three-dimensional objects.

A provided refining technology for molten medium-high carbon steel comprises: during the process that molten steel is subjected to tapping from a converter to a steel ladle, adding the first batch of a carburant into the molten steel to enable the carbon content of the molten steel to be 0.20%-0.30%; during cyclic vacuum degassing treatment of the molten steel, adding the second batch of the carburant into the molten steel for deoxidation; and then alloying the molten steel to enable the oxygen content, the carbon content and the alloy content of the molten steel to reach target values. The refining technology is capable of reducing viscosity of steel slag, avoiding or reducing generation of Al2O3 to improve molten steel cleanliness, improving the yielding rate of alloy elements as well as reducing metal oxide inclusions in the molten steel, and / or reducing treatment cost.

The invention discloses a riveting method and a riveting structure, and the riveting method comprises the steps: providing a plate which is provided with a first side and a second side opposite to the first side; a wall part is formed on the first side of the plate, and the two sides of the wall part are provided with concave areas; placing a fastener into the recessed area, and enabling the fastener to be adjacent to one side of the wall part; and acting force is applied to the wall part from the other side, not adjacent to the fastener, of the wall part, so that the wall part is deformed to at least partially wrap the fastener. According to the scheme, indentations can be prevented from being generated on the back surface of the plate.

The invention provides a method for preparing curved glass, comprising: providing flat glass and side glass, and coating a SiO on the sides to be bonded of the flat glass and side glass respectively 2 layer, so that the sides of the flat glass and side glass are flattened; the flattened flat glass and side glass are vacuum thermally bonded, and then CNC cutters are used to cut the bonded glass combination to Get the curved glass of the desired shape. In the present invention, before vacuum thermal bonding is carried out on the glass substrates used for preparing curved glass, a SiO 2 Layer, which can reduce the surface roughness of the glass substrate and improve its flatness, thereby avoiding or reducing the occurrence of air bubbles during bonding, and improving the bonding strength.

The invention discloses an anti gram-positive bacterium composition of anglerfish skin collagen peptide, and the anti gram-positive bacterium composition is prepared by compounding an anglerfish skin collagen peptide solution with a concentration of 100-200 mg / ml and a ceftiofur sodium solution with a concentration of 20 mug / mL according to a volume ratio of 3- 4:1. By combination use and collaborative effects of anglerfish skin collagen peptide and antibiotic ceftiofur sodium, the anti gram-positive bacterium composition has a better bacteria resistance and bacteriostasis activity on gram-positive bacterium, reduces the antibiotic dose, reduces drug residues, avoids or reduces the production of drug resistant strains, and improves the economic added value of anglerfish skin.