79results about How to "Product quality is not affected" patented technology

A process for preparing hexagonal flake type magnesium hydroxide from ordinary one by dydrothermal method includes such steps as proportionally mixing ordinary magnesium hydroxide with lithium hydroxide and/or potassium hydroxide, or their mixture with sodium hydroxide, stirring, hydrothermal reaction at 140-200 deg.C for 2-6 hr, cooling, filtering, washing, drying, and pulverizing.

The invention provides a method for preparing sea buckthorn instant tea, the method includes the following steps: extracting and concentrating the collected sea backthern leaves by extracting agent to obtain the concentrated extracting solution; spray drying the concentrated extracting solution to obtain powder shaped water-soluble sea backthern leaf extract; preparing the sea backthern leaf extract with accessories in a certain ratio to for producing the sea buckthorn instant tea with needed flavor and taste. The invention also provides a sea buckthorn instant tea prepared by the upper method, containing the water-soluble sea backthern leaves extract extracted from sea backthern leaves, the flavone content of the instant tea is 0.2-10 mg/bag, preferably 1-5mg/bag. The merits of the invention reside in that: picking time of the material sea backthern leaves or tender and fresh degree are not requested; the process is industrial producing process, the output of the products is large, the product is safe and health; at the same time because the matter added into the sea backthern teabag is 100% water-soluble sea backthern leaves extract, once the tea bag is soaked, all the effective active ingredients in the sea backthern tea are dissolved.

The invention provides a vertical boxing machine and rotary box-sucking mechanism thereof, and belongs to the mechanical devices or equipment of packing objects or materials. The vertical boxing machine comprises a paper box storeroom (1) and a paper box delivery and convey chain mechanism (2) which comprises a convey chain assembly (3), a tongue driving mechanism (4) and a tongue inserting mechanism (5). The vertical paper boxing machine is characterized in that the rotary box-sucking mechanism (20) is arranged between the paper box storeroom (1) and the convey chain mechanism (2) and is matched with the same; the rotary box-sucking mechanism comprises a turntable (6) connected with a power device in a transmission manner. A radial reciprocating-moving box-sucking unit assembly is arranged on the turntable (6) and mainly comprises a sucking head (7) connected with an air source; and the vertical boxing machine capable of completing material vertically boxing and sucking and releasing the paper boxes successfully without additional paper box opening mechanisms.

The invention provides a preparation technology of hexagonal plate magnesium hydroxide. Magnesium hydroxide products are prepared into slurry mass concentration of which is 7.5 percent to 15 percent, the slurry is added into transforming agent solution to enable the total alkali concentration of the transforming agent solution to be 2-4mol/L; then all the mixture is mixed uniformly and placed in a high-pressure reaction kettle to react at 140-160 DEG C for 2-6h; and after being cooled, the reaction product is washed by water, dried and crashed to obtain the hexagonal plate magnesium hydroxide. The transforming agent is a composite transforming agent formed by mixing lithium hydroxide and sodium hydroxide or potassium hydroxide according to mol ratio of 1:1-1:4. Observed by a low vacuum laser scanning electron microscope, the magnesium hydroxide prepared in the invention is a hexagonal plate magnesium hydroxide with complete crystal formation and uniform granularity; the grain diameter of the magnesium hydroxide is correlative to raw materials; and the specific surface of the magnesium hydroxide is 3.0-20 m<2>/g. Due to the adoption of the new transforming agent, the invention has high transformation ratio, good product quality, stable crystal formation and low cost.

A synthesis process for a polycarboxylate high performance water reducing agent is characterized in that the polycarboxylate high performance water reducing agent is made from the raw materials with the following weight portions of 1 to 4 portions of polyethylene glycol, 2 to 3 portions of butyl methacrylate, 3 to 5 portions of methyl methacrylate, 23 to 25 portions of vinyl ether polyoxyethylene and 4 to 5 portions of maleic anhydride. Water is heated to 70 DEG C to 100 DEG C in a reaction kettle, part of the reactants is taken to pour into the reaction kettle to stir, melt, mix evenly and heat, alkali with 0.5 weight portions is added to neutralize after the reaction is completed, and the process is completed. The synthesis process has no nitrogen protection and does not use de-ionized water equipment, does not need separate titration, and can simultaneously carry out the addition and the mixture. The process has the characteristics of simple flow, simple and convenient operation, excellent performance-price ratio, safety, environment protection, etc.

The invention discloses a copper-tin alloy contract wire for an electrified railway and a continuous manufacturing process thereof. The alloy of the copper-tin alloy contract wire comprises the following components in weight ratio: 0.195-0.435% of metallic tin, 99.755-99.515% of metallic copper and 0.05% of other impurities. The continuous manufacturing process aims at different types of copper-tin alloy contract wires to produce and controls the content range of tin of a copper-tin alloy extrusion stem, so that the copper-tin alloy extrusion stem can conduct flash butt welding, and then continuous production is realized. The continuous manufacturing process can ensure the one-time success rate of continuity of the copper-tin alloy extrusion stem and the production efficiency.

The invention provides a treatment method for the reuse of purified terephthalic acid (PTA) waste water, which belongs to the technical field of environment engineering and industrial waste water treatment. The particular method is as follows: polyacrylamide solution with mass concentration of between 1 and 2 thousandth is adopted for flocculate sedimentation pretreatment on the PTA waste water, the adding amount of the polyacrylamide solution is 1.5 to 1 percent of the volume of the waste water; the waste water after treatment enters an oxidation tank for advanced oxidation degradation reaction; in the reaction, a fan is used to blow air to a reaction tank; and the waste water after treatment can be directly used for production of workshop, wherein the concentration of the main oxidizing agent which is hydrogen peroxide is between 20 and 30 percent; auxiliary oxidants of sodium chlorate and potassium persulphate are industry graded; and the adding amount of sodium chlorate and potassium persulphate is 0.1 to 0.2 percent and 0.1 to 0.2 thousandth of the weight of the waste water respectively. Compared with the prior waste water reuse process, the method has the advantages of low investment, simple and convenient operation, high treatment efficiency and the like. The method realizes the reuse of the PTA waste water, relieves the pressure of insufficient water resources and meets the general policy of China on energy conservation and emission reduction.

The invention discloses 2,4-D choline water-soluble granules. The 2,4-D choline water-soluble granules comprise the components in percentage by weight: 5-99.5% of 2,4-D choline and the balance of water-soluble packing. The invention also discloses a preparation method of the 2,4-D choline water-soluble granules. The preparation method comprises the steps of: mixing the 2,4-D choline and the water-soluble packing, kneading, extruding, pelletizing and drying to obtain the 2,4-D choline water-soluble granule product, effective constituents of which are up to 99.5%. The preparation method is simple in process, economic and safe; hazardous chemical substances are not used in the whole production process, no dust is generated, and organic solvents are not needed; the preparation method is environment-friendly and easy in control and operation; and safety factors of the preparation method are high.

The invention provides a method for absorbing wind turbine blade wastes in a cement kiln. The method comprises the following steps: separating metal parts and high-chlorine content parts in the wind turbine blade wastes, and segmenting the remaining wind turbine blade wastes as massive wastes; grinding the massive wastes into particles so as to obtain ground materials; and taking the ground materials as alternative fuel of the cement kiln, and combusting the fuel in a cement kiln decomposing furnace. The method disclosed by the invention is simple, practical, less in initial investment and subsequent maintenance cost, environment-friendly and harmless, belongs to a circular economy manner, accords with the treatment policy of 'reduction, recycling and harmlessness' of municipal wastes, can thoroughly implement and carry out the national policy of cooperatively treating non-medical wastes and industrial wastes in the cement kiln, solves the thermosetting material waste disposal difficulty problem troubling the society for a long time, provides alternative fuel and raw materials for the high-energy-consumption cement industry and has wide application prospects.

The invention discloses a solvent-free waterborne polyisocyanate curing agent and a preparation method and application thereof. The solvent-free waterborne polyisocyanate curing agent is polyisocyanate prepolymer containing sulfonic acid groups. The preparation method includes: dissolving dicarboxyl sulfonate into an organic solvent, allowing the solution to have reaction with polyisocyanate prepolymer, and distilling to remove the organic solvent to obtain the solvent-free waterborne polyisocyanate curing agent. The solvent-free waterborne polyisocyanate curing agent is truly free of VOC discharge, excellent in water dispersity and storage stability, high in NCO content, low in viscosity, capable of being coordinated with various resin containing hydroxyl, carboxyl or amino to prepare double-component polyurethane coating and double-component polyurethane adhesive, and capable of allowing a product to be good in water resistance and high in strength.

The invention discloses a control method for conveniently adjusting stem-removing quantity of a cigarette making machine, belonging to the field of cigarette manufacturing. The method comprises the following steps: firstly, installing a frequency converter on a fan roll control motor, carrying out adjustment tests by using the frequency converter, then determining an appropriate frequency range of the frequency converter based on the technology demands for the stem-removing quantity; and finally, replacing belt pulleys of a tobacco shred-bouncing roller with ones of a different size as required, wherein if the bouncing effect of tobacco shreds is not influenced by the variation of the fan speed, the belt pulleys of the tobacco shred-bouncing roller do not need to be replaced; and if the bouncing effect of tobacco shreds is influenced by the variation of the fan speed, the belt pulleys of the tobacco shred-bouncing roller should be replaced to ensure the constant speed of a tobacco shred-bouncing roll so as to ensure the tobacco shred-bouncing effect. The method has the advantages of low investment and simple and flexible operation, can quickly and accurately adjust the stem-removing process by a wide margin based on the variation of incoming tobacco shreds, and is especially applicable to the condition that the stem-removing rate remains stubbornly high. Production proves that the consumption-reducing and quality-improving effects are obvious and the economic benefits are considerable, thereby ensuring favorable industrial application value and popularization prospects.

The invention discloses a high-purity metformin hydrochloride preparation method. N-methyl pyrrolidone is used as a solvent, dicyandiamide and dimethylamine hydrochloride are taken as a solute, the solvent and the solute are added into a synthesis kettle for reaction, and metformin hydrochloride is prepared through steps of stirring, cooling, spin-drying, washing, crystallizing and drying. The metformin hydrochloride prepared through the preparation method provided by the invention has the advantages that the yield is higher than 96.4 percent, and the product purity is higher than 99.93 percent.

The invention discloses a heat exchange system seamless alternation type frequency conversion constant-pressure constant-temperature adjusting system and method. The system comprises a plate heat exchanger, the plate heat exchanger is provided with a heat source input port, a cold source input port, a heat source output port and a cold source output port, the heat source input port is connected with at least two water supply pumps connected in parallel, the front ends of the water supply pumps are provided with a water tank, the front end of the cold source input port is provided with an electric regulating valve and a temperature sensor, each water supply pump is connected to a frequency converter, and the frequency converter and the cold source input port and the heat source output portof the plate heat exchanger are electrically connected to a control cabinet. According to the heat exchange system seamless alternation type frequency conversion constant-pressure constant-temperatureadjusting system and method, since the frequency converter for enabling the water supply pump connection power to be larger than water supply pump operation power is arranged, the rotating speeds ofthe water pumps are controlled in a frequency conversion mode through the control cabinet, constant-pressure water supply stabilization is achieved, meanwhile, the control cabinet can directly controlthe opening of the electric regulating valve, the cold source input quantity is controlled, stable water supply temperature is ensured, and it is ensured that product quality is not affected in the production process.

The invention relates to an activated aluminum oxide producing device and a technology. The whole of the activated aluminum oxide producing device consists of a heat source device, a smashing device, a flash evaporation device, a shaping device, an activating and sieving device and a control center; and besides, aluminum hydroxide is used as raw material, and the technology is completed through the working procedures of crushing, dehydrating, pelletizing, preserving, activating and roasting, sieving and packaging. The activated aluminum oxide producing device and technology disclosed by the invention have the advantages that the stable quality of products is in automated control, the device is simple in structure, the investment is low, the safety coefficient is large, the floor space is small, the activated aluminum oxide producing device and technology are environmentally-friendly and energy-saving, and various aluminum oxide products can be produced. The producing device has a good popularization value and a good practical value, and after the producing device is widely popularized and applied, favorable economic benefits and social benefits can be generated.

The invention discloses a preparation method for high-activity trimanganese tetraoxide. The preparation method comprises the following steps: S1, mixing electrolytic manganese metal powder with a catalyst, carrying out wetting to form slurry, adding the slurry into warm deionized water to form a suspension, continuously introducing oxygen or pure air, and carrying out a stirring reaction; S2, starting an ultrasonic generator for treatment, adding a activator, and carrying out a reaction for 1.8-5 h to obtain the suspension slurry of high-activity trimanganese tetraoxide, wherein ultrasonic intensity is adjusted within the range of 20 kHz-40 kHz during the reaction; and S3, performing concentration, washing, dehydrating and drying to obtain the high-activity trimanganese tetraoxide. The method of the invention has the advantages of short production cycle, low cost, small environmental pollution and good safety, and can prepare high-activity trimanganese tetraoxide.

The invention relates to a cement grinding mill static grinding increasing technique, which comprises the steps of drying, breaking, grinding and powder choosing. In the step of grinding, clinker and the mixing material are fed in a cement grinding mill, then water is infused in the wheel head of the cement grinding mill. The delivering proportion accords to the weight that the clinker: the mixing material: the water is 5000 to 8000:2000:5 to 8. The invention overcomes the technical bias of the prior art, greatly improves the output, and brings considerable economical benefit.

The invention discloses a cetrorelix preparation and a preparation method thereof, and relates to the technical field of biological medicines. The preparation method comprises the steps that a mixed solution containing mannitol and cetrorelix acetate is subjected to first-stage freezing, second-stage freezing and third-stage freezing, wherein the conditions of the first stage are that after the temperature is decreased to -20 DEG C to -40 DEG C, heat preservation is conducted for 0.1-2 h; the conditions of the second stage are as follows are that the temperature is raised to -20 DEG C to -5 DEG C, heat preservation is performed for 0.1-2 hours; and the conditions of the third stage are that after the temperature is reduced to -20 DEG C to -40 DEG C, heat preservation is performed for 0.1-2 hours. According to the method, the temperature is lowered to be close to the glass transition temperature of the solution, the temperature is kept for a period of time, and the temperature is lowered again until the solution is completely frozen after the temperature is raised to a certain temperature, so that the stability of the cetrorelix preparation product can be ensured to the greatest extent. Meanwhile, after the freezing treatment, a relatively high drying temperature can be selected for drying in the drying stage, so that the product quality is not influenced, the drying time is shortened, and the production cost is reduced.

The invention aims to provide a high-temperature-resistant catching and releasing machine for a semiconductor plastic package product, which is simple in structure, convenient and quick to operate andhigh in working efficiency. The high-temperature-resistant catching and releasing machine comprises a fixed plate, a moving plate and a moving block, wherein identical waist-shaped holes are correspondingly formed in the moving plate and the moving block; the moving plate and the moving block are fixed by bolts; tension springs and roller bearings are respectively arranged between the moving plate and the moving block; positions of the tension springs and a first shank are located on one horizontal line; mounting blocks are fixedly connected among the fixed plate, the moving block and the moving plate; a second shank is fixed on the fixed plate through shank mounting blocks, and limiting blocks L are arranged on the mounting blocks; the first shank is fixed on the moving plate through clamping blocks; a plurality of limiting blocks R are symmetrically and uniformly distributed on the moving plate along lengthwise directions of the waist-shaped holes; a plurality of locking blocks aresymmetrically and uniformly distributed on the fixed plate; a plurality of second supporting claws are symmetrically and uniformly distributed on the waist-shaped holes along the lengthwise directionof the moving plate; and a plurality of first supporting claws are symmetrically and uniformly distributed on the waist-shaped holes along a width direction of the moving plate.