244results about "Transportation and packaging" patented technology

The present invention relates to compositions for use in refrigeration, air-conditioning, and heat pump systems wherein the composition comprises a fluoroolefin and at least one other component. The compositions of the present invention are useful in processes for producing cooling or heat, as heat transfer fluids, foam blowing agents, aerosol propellants, and fire suppression and fire extinguishing agents.

The invention discloses a crushing quantitative mixing pharmaceutical device for a traditional Chinese medicinal material. The crushing quantitative mixing pharmaceutical device comprises a base, wherein the left and right ends of the base are provided with a left supporting plate and a right supporting plate respectively; the right side of the left supporting plate is fixedly provided with a first crushing box through a bracket; the left side of the right supporting plate is fixedly provided with a second crushing box through a bracket; the tops of the left supporting plate and the right supporting plates are provided with a top plate; the left and right sides of the bottom of the top plate are provided with first mounted bearings; the left and right first mounted bearings are connected with a first rotating shaft and a second rotating shaft respectively; the bottoms of the first rotating shaft and the second rotating shaft are both provided with crushing blades; the center of the bottom of the top plate is provided with a reducing motor; a motor shaft at the bottom end of the reducing motor is connected with a third rotating shaft; the bottom of the third rotating shaft is also provided with a first agitating rod; the base is also fixedly provided with a mixing box through a bracket; the mixing box is located below a discharge opening; the first agitating rod is located in the mixing box. The crushing quantitative mixing pharmaceutical device can be used for synchronously crushing multiple traditional Chinese medicinal materials and mixing the crushed traditional Chinese medicinal materials, and is high in pharmaceutical efficiency.

The invention is concerned with Gemini surfactant field. It relates to a kind of unbalance Gemini surfactant, in the chemistry structure, the m is 6 to 30, n is 0 to 30, and X is one or the mixture of some of H, CH3,C2H5,C3H7,Li+,Na+,K+ and NH4+, Y is one or the mixture of some of Li+, Na+,K+ and NH4+, and the m is 10 to 15, n is 0 to 15. It also relates to the produce and application of this surfactant. It has two different hydrophilic groups, one is sulfonate and the other is carboxylates or carboxylate. And the connecting group is phenoxy. This surfactant has all characters of Gemini surfactant, and the two hydrophilic groups have good water-solubility, water hardness stability, alkaline endurable and foam character for the industry, such as washing, weave and thrice oil extraction.

The invention discloses a method for synthesizing gemini long chain alkyl quaternary ammonium salts by enabling long chain alkyl tertiary amine mixture to be reacted with dibromo hydrocarbon or epoxy chloropropane and an application as a drag reduction and energy conservation agent of a circulating water system. The method comprises the following steps: stirring and dissolving the long chain alkyl tertiary amine mixture in an organic solvent, and heating to reflux temperature; slowly adding dibromoethane or epoxy chloropropane for generating mixture of asymmetric and symmetric gemini long chain alkyl quaternary ammonium salts; stopping the reaction when the tertiary amine conversion rate is above 75%, and performing vacuum evaporation for recovering the solvent; and using deionized water to dissolve distillation products, and oxidizing the non-converted raw material to tertiary amine oxide with hydrogen peroxide at the temperature of 60-80 DEG C. A gemini quaternary ammonium salt surfactant is used as main molecules of the drag reduction agent, an organic acid corrosion inhibitor is used as auxiliary ions, the molar ratio of the main molecules to the auxiliary ions is 1: (2.4-6.0), then the drag reduction agent which is applicable to the range of 5-95 DEG C is prepared, and the drag reduction efficiency of the drag reduction agent to the circulating water system achieves 40%-70%, and the corrosion inhibition efficiency achieves 60%-95%. By adopting the gemini long chain alkyl quaternary ammonium salt surfactant, the problems of strong corrosion, great irritation and a narrow range of applicable temperature of the traditional long chain alkyl quaternary ammonium salt surfactant can be overcome.

The invention involves foam stabilization compositions that rely upon an electrostatic charge interaction. According to the invention, the positively charged class of polymers such as polyethyleneimine (PEI) polymers are used to provide a long range electrostatic interaction with detersive anionic or amphoteric surfactants present in the same. The interaction must be of sufficient character so that the components do not precipitate out, instead causing longer lasting and increased foam production. The system provides an environmentally friendly alternative for traditional foaming enhancers such as cocamide DEA.

The tool mount has a body (12) with means for housing a tool with grooves, whereby the body (12) is equipped with a damping mechanism (14, 16, 18, 20) with which the tool can be clamped in position in the body (12), and an operating element (24) for unclamping the tool is provided.

A wear-resistant tool mount requiring low production expenses has a housing sleeve (34) for the tool. The housing sleeve is inserted in the body (12) and is made of a harder material than the body (12).

The invention belongs to the field of agricultural machinery, and particularly relates to an automatic fertilization device for the agriculture science and technology. In order to solve the problems that an existing fertilizer is low in mixing efficiency and not uniform, manual fertilization wastes time and labor, and the efficiency is low, the following scheme is proposed that the automatic fertilization device comprises a bottom plate, wherein the upper end of the bottom plate is connected with a mixing box, the upper end of the mixing box is connected with a box cover, the upper end of thebox cover is fixedly provided with a second motor, the tail end of an output shaft of the second motor penetrates through the box cover to extend into the mixing box and is fixedly connected with a stirring shaft, stirring blades are uniformly distributed on the stirring shaft, the inner wall of the mixing box is provided with multiple turnover mechanisms in the circumferential direction of the mixing box, the side wall of the mixing box is provided with a feed hopper, the lower end of the mixing box is connected with a fertilization pipe, and the fertilization pipe penetrates through the bottom plate. The automatic fertilization device for the agriculture science and technology has the advantages that through the arranged turnover mechanisms, cylinder stirring pieces turn over fertilizerssynchronously and vertically during fertilizer mixing, so that the agitating efficiency is higher, the uniform mixing effect of the fertilizer is better, intermittent automatic fertilization is achieved, and the fertilization efficiency is improved.

The invention discloses a slurry stirring device for coated fabric production. The slurry stirring device comprises a stirring tank and a base and is characterized in that a feeding hopper and a wateradding port are respectively arranged on two sides of the top of the stirring tank, a crushing motor is mounted on the lateral wall of the feeding hopper, a crushing roller is connected to the outputshaft of the crushing motor through a reducer, crushing teeth are evenly distributed on the outer wall of the crushing roller, a filter screen is arranged at the bottom of the inner cavity of the stirring tank, an impurity cleaning push plate is arranged on the upper side of the filter screen, and the bottom of the stirring tank is fixedly connected with the base through damping spring columns. The slurry stirring device has the advantages that caked slurry can be crushed and refined before slurry stirring, slurry stirring time is reduced, impurities in the slurry can be removed through filtering by the aid of the filter screen arranged in the stirring tank, the quality of mixed slurry is increased, the impurity cleaning push plate arranged on the upper side of the filter screen can fastpush the impurities accumulated on the filter screen out of the stirring tank, and manual cleaning is not needed.

A process for forming a nano-composite including mixing a first and second thermoplastic polymer in a molten state forming a molten polymer blend. The second polymer is soluble in a first solvent and the first polymer is insoluble in the first solvent. The first polymer forms discontinuous regions in the second polymer. Next, the polymer blend is subjected to extensional flow, shear stress, and heat forming nanofibers where less than about 30% by volume of the nanofibers are bonded to other nanofibers.

Next the polymer blend with nanofibers is cooled and the first intermediate is formed into a pre-consolidation formation. The pre-consolidation formation is then consolidated causing nanofiber movement, randomization, and at least 70% by volume of the nanofibers to fuse to other nanofibers. According to one aspect, the second intermediate is then subjected to the first solvent to the dissolving away at least a portion of the second polymer.

A metal powder for powder metallurgy contains Fe as a principal component, Cr in a proportion of 15% by mass or more and 26% by mass or less, Ni in a proportion of 7% by mass or more and 22% by mass or less, Si in a proportion of 0.3% by mass or more and 1.2% by mass or less, C in a proportion of 0.005% by mass or more and 0.3% by mass or less, Zr in a proportion of 0.01% by mass or more and 0.5% by mass or less, and Nb in a proportion of 0.01% by mass or more and 0.5% by mass or less. Further, the metal powder for powder metallurgy preferably has an austenite crystal structure.

A portable mixing apparatus that employs disposable 5-gallon plastic buckets as containers for mixing mortar, grout, plaster and other materials. First and second motor-driven rollers support the buckets at a downwardly sloped angle. A separate mixing basket is placed within the buckets, and includes a plurality of blades that pass through the material as the bucket is rotated by the rollers. The leading roller is positioned lower than the trailing roller so as to engage the flexible wall of the bucket in an area where it is subject to outward pressure from the material during rotation. The rollers are provided with ribbed, non-slip covers having channels that accommodate water and debris on the exteriors of the buckets. The mixing basket is formed of a plurality of coaxial, longitudinally-spaced rings joined at their edges by longitudinal rods. The blades are mounted internal to the rings and extend generally parallel to the axis of the buckets, with the ends of the rods being angled in the direction of rotation. The drive rollers and motor are mounted in a frame having folding legs so that the assembly can be collapsed to a compact form for transportation or storage.

The invention relates to a step drill, which comprises a drill body and a drill stock, wherein the drill body is stepped and at least comprises a first cutting part and a second cutting part; the first and second cutting parts are coaxial; the first cutting part is positioned at the front end of the drill body; the second cutting part is positioned behind the first cutting part; the diameter of the first cutting part is less than that of the second cutting part; each cutting part is at least provided with two helical cutting blades; a chip groove is formed between every two cutting blades; and an end face cutting blade is formed at a transition part between the second and first cutting parts. A stepped hole can be machined with one such step drill, which prevents errors caused by the repeated installation of a drill bit and improves the machining accuracy of the stepped hole.

The invention discloses preparation of fluorogold nano-clusters and application of the fluorogold nano-clusters to tetracycline and copper fluorescent probes. The fluorogold nano-clusters (Au NCs) aresynthesized with a one-step method from casein separated from milk and carbon quantum dots as a stabilizer and a reducer for synthesis of the Au NCs. The Au NCs perform emission three times at 433 nm, 702 nm and 1052 nm under the excitation wavelength of 350 nm, tetracycline has a linear quenching effect at 702 nm, Cu<2+> is added to an Au NCs system after quenching, fluorescence recovers, and fluorescence intensity at 1052 nm is almost not affected in the overall process; tetracycline is added to the Au NCs, observation is carried out under a UV (ultraviolet) lamp with wavelength of 365 nm,red fluorescence of the Au NCs changes into yellow fluorescence, and after addition of Cu<2+>, the yellow fluorescence disappears gradually and the red fluorescence recovers gradually. Therefore, a near-infrared ratio fluorescence switch for tetracycline and Cu<2+> and UV visual dual-signal detection are established. The method has the advantages of adopting a fluorescence spectrum in a near infrared region and being small in interference, high in specificity and detection sensitivity, convenient to operate and capable of detecting tetracycline and Cu<2+> simultaneously.

The invention discloses a simple and convenient synthesis method and application of waste grease based polyhydric alcohol. The synthesis method comprises the following steps: performing simple pretreatment such as filtration, dehydration and decoloration on waste grease, performing heating and stirring reaction with alkamine compounds, and performing amidation with free fatty acid in the waste grease and performing transesterification reaction with glyceride under heating conditions by using relatively high reaction activity of amino groups to form corresponding biological oil based polyhydric alcohol. The method disclosed by the invention is capable of achieving the purpose of turning waste into treasure by adopting the waste grease as a raw material, and an obtained polyhydric alcohol product has the characteristics of good biodegradability, simple and convenient preparation process, small emission of three industrial wastes, adjustable product structure and hydroxyl value, wide application range and low environmental influence level.

A milling insert and a milling insert tool for chip removing machining. The milling insert includes at least two teeth. The milling insert has substantially a disc shape and includes a topside and an underside. The milling insert in its entirety is formed of cubic boron nitride.

The invention discloses a drill bit of a hollow drill. The drill bit comprises a drill handle and a barrel, and is characterized in that the top end of the barrel is provided with a wear-resistant layer; a plurality of cutting teeth are uniformly distributed on the wear-resistant layer; the wear-resistant layer is formed by overlaying a JY49-1 material at one time; the cutting teeth are directly welded on the wear-resistant layer. The drill bit has the advantages of corrosion resistance, easiness in cleaning, firmness, prevention of deformation and durability.

Provided is a sintered bearing (1), including 3 to 12% by mass of aluminum, 0.05 to 0.5% by mass of phosphorus, and the balance including copper as a main component, and inevitable impurities, the sintered bearing (1) having a structure in which an aluminum-copper alloy is sintered with a sintering aid added to raw material powder, a pore (db, do) in a surface layer portion of the sintered bearing (1) being formed smaller than an internal pore (di).

The invention discloses a feed processing dryer capable of stirring in a positive and negative rotation mode. The feed processing dryer comprises a housing, a heating sleeve, a feeding hopper, a support base and a motor; at least two horizontal dispersion plates are fixedly installed on the upper portion of the interior of the housing, each dispersion plate is composed of a convex rib, a groove, a horizontal plate, a discharging hole and an inclined plate, and the convex rib of the upper dispersion plate corresponds to the groove of the lower dispersion plate; one end of a rack is connected with a half gear in a meshed mode; the other end of the rack is connected with a transmission gear in a meshed mode, a vertical transmission shaft is fixedly installed on a central shaft of the transmission gear, and the side wall of the transmission shaft is provided with a vertical air duct. According to the feed processing dryer capable of stirring in the positive and negative rotation mode, feed entering the dryer is evenly distributed in the shell through the arrangement of the dispersion plates, slowly falls down in a dispersed mode and is fully in contact with hot air flowing upwards, so that a certain drying effect is achieved; the transmission shaft is pushed by the half gear to rotate in a positive and negative mode, so that the air duct can safely and stably convey hot air into the interior.

Provided are an apparatus for manufacturing a compound powder, a method of manufacturing an iron-boron compound powder by using the apparatus, a boron alloy powder mixture, a method of manufacturing the boron alloy powder mixture, a combined powder structure, a method of manufacturing the combined powder structure, a steel pipe, and a method of manufacturing the steel pipe The method of manufacturing the boron alloy powder mixture includes: preparing a mixed powder including a boron iron alloy powder and a target powder; heat-treating the mixed powder to boronize at least a portion of the target powder and de-boronize at least a portion of the boron iron alloy powder, thereby de-boronizing the boron iron alloy powder to reduce the melting point of the boron iron alloy powder.

The invention discloses a movable type wall coating spraying device. The movable type wall coating spraying device comprises a coating equipment box and a coating brush roll. A sealing diaphragm is welded to the interior of the coating equipment box, the interior of the coating equipment box is divided into an equipment installation chamber and a coating storage chamber by the sealing diaphragm, astirring shaft is installed in the coating storage chamber, a plurality of stirring rods are perpendicularly welded to the side face of the stirring shaft, and the upper end of the coating storage chamber communicates with a coating adding pipe; an air compressor is installed in the equipment installation chamber, the air compressor is connected with a coating rod through an air guiding pipeline,and the coating brush roll is installed on the front side of the coating rod; and the coating rod is connected with the output end of a coating pumping pump through a coating pumping pipe, and the input end of the coating pumping pump is connected with a coating suction pipe. According to the movable type wall coating spraying device, the structure is stable and firm, moving is convenient and rapid, it is ensured that the texture of coating in the coating storage chamber is even, layering or deposition of the coating is avoided, and the position of the coating brush roll can be conveniently adjusted; and even smearing of the coating is achieved, operation is convenient and rapid, and manpower and material resources are saved.

The invention discloses a ship waste gas desulfuration device and method. The ship waste gas desulfuration device comprises a primary impurity removal box and a secondary impurity removal box. A gas outlet end of the lower right side of the primary impurity removal box is connected with the secondary impurity removal box through a communicating pipe. An air inlet pipe is arranged on the upper leftside of the primary impurity removal box. A loading frame is arranged in the primary impurity removal box. Vent holes are evenly distributed in the middle of the bottom of the loading frame. An isolation net frame is horizontally placed in the primary impurity removal box. An activated carbon filling cavity is formed in the position, on the lower side of the isolation net plate, of the loading frame. A stone filling layer is paved on the upper side of the isolation net plate. The ship waste gas desulfuration device is simple and reasonable in structure; waste gas is preprocessed through the primary impurity removal box, and therefore solid impurities in the waste gas are removed; by sufficiently mixing alkali liquid and waste gas, the waste gas mixing effect is improved, and then it is ensured that waste gas is sufficiently purified.

The invention relates to a stirrer, in particular to an automatic chemical material mixing stirrer. The invention mainly provides an automatic chemical material mixing and stirrer which can automatically mix and stir materials in a closed space, directly discharge materials, separate different materials and then intensively discharge the materials to ensure accuracy. The automatic chemical material mixing stirrer comprises a bottom plate, wherein a workbench is connected to the top of the bottom plate, and a discharging port is formed in the top of the workbench; a motor, wherein a right sideof the workbench is connected with the motor; a stirring mechanism, wherein the stirring mechanism and a uniform discharging mechanism are connected between an output shaft of the motor and the top ofthe workbench, and the uniform discharging mechanism is connected between the stirring mechanism and the top of the workbench; a material receiving box which is slidably arranged on the left side ofthe top of the bottom plate. The motor is arranged to drive the first conveying device to rotate, so that the stirring blades rotate to stir materials, and convenience and quickness are achieved; by arranging the arc-shaped groove to rotate, the material storage barrel is driven to be matched with the discharging pipe, intermittent discharging is conducted, and manual continuous discharging is notneeded.

The EAFD stabilizer for returned concrete and mixer drum wash water includes various methods of using EAFD as a stabilizer in making concrete. The potentially hazardous stockpile of EAFD can be used in practical construction, which has a positive impact on the environment. A certain amount of EAFD is added to cement being mixed or to wash water and acts as a stabilizer, the wash water being used to make a cement mixture. This resultant EAFD stabilized concrete mixture stabilizes overnight.

The invention discloses mixing equipment for coating preparation. The equipment comprises a mixing bucket, a motor I, a transmission shaft, stirring rods, a transition cylinder, a motor II, a screw conveyer and a controller and is characterized in that the mixing bucket is arranged on a support, the motor I is arranged at the top of the mixing bucket, the transmission shaft is arranged in the mixing bucket, the stirring rods are arranged on a connecting plate, the transition cylinder is arranged in the mixing bucket, the motor II is arranged at the bottom of the mixing bucket, the screw conveyer is arranged in the filter cylinder, and the controller is arranged on the mixing bucket. An interlayer is arranged on the mixing bucket and is connected with a medium passing pipe, the temperature inside the mixing bucket can be adjusted according to the temperature in the production process of the coating, the temperature inside the mixing bucket can be maintained in a proper temperature range suitable for coating production, the processing speed of a coating can be increased, raw materials of the coating can be sufficiently mixed, and the utilization efficiency and the mixing quality of the raw materials are improved.