57results about How to "Effective separation and removal" patented technology

The invention discloses a measuring device of workpiece rotary table error separation based on double-probe scan data splicing and a method thereof. The device employs two sets of probe systems (1, 1') to carry out scanning measurement simultaneously on a swing arm contourgraph which is formed by a probe system (1), a transverse arm (2), a column (3), a counterweight (4), a standard flat crystal (5), a workpiece rotary table (6) and a transverse arm rotary table (7). After two sets of the probe systems scan one time, two scanning loci M1 are obtained, then the workpiece rotary table is rotated with a certain angle beta and scanning is carried out once more, and another two scanning loci M2 are obtained. According to the device and the method, a method of double-probe scan data splicing is employed, influence of a motion error of the workpiece rotary table on a measurement result can be effectively separated and removed, thus measurement precision is raised substantially, and a practical solution scheme is provided for on-position measurement of the swing arm contourgraph at an optical processing field.

The invention discloses a sewage treating method sequentially comprising the following sewage treating steps of: a filtering treatment step, a precipitating treatment step, an anaerobic treatment step, an anoxic treatment step, an aerobic treatment step, and a disinfecting treatment step. According to the scheme, a multi-stage treatment way is adopted by the sewage treating method; principally, by virtue of physical decontamination treatment combined with biological decontamination treatment, contaminants contained in sewage can be effectively separated out and removed from water; as a result, harmful materials are converted into harmless materials and useful materials and water is purified; besides, resources are utilized sufficiently; the sewage treating method has wide market application significance.

The invention relates to a method that removing foreign matters in the powder air feeding process, which adds a foreign matter removing device on the pipe that from the middle storage pot to the final storage post. Wherein, the foreign matters removing device comprises a case and a screen plate, while the left of case has a inlet, the right of case has a outlet, and the upper and lower parts of case have hand holes; the screen plate is arranged between the upper and lower cases, while it has screen holes with 30-45% hole percentage.

The invention discloses a method for purifying and preparing poplar wood xylooligosaccharide by a biological enzyme together with physical and chemical methods, and belongs to the technical field of biological refining. The preparation method simultaneously performs purification of pre-hydrolysis liquor and preparation of xylooligosaccharide, specifically treats the poplar wood pre-hydrolysis liquor by using a physical, chemical and biological combination method including calcium hydroxide treatment, laccase and xylanase treatment and activated carbon treatment; and, and separates and removessoluble impurities such as lignin and furfural in the pre-hydrolysis liquor to the maximum extent under the condition of ensuring high xylooligosaccharide yield and purity. The method solves the problems of long period, high energy consumption, complex process and high production cost in the process of producing xylooligosaccharide by traditional methods, improves the utilization value of the poplar wood pre-hydrolysis liquor, and realizes the high-value utilization of hemicellulose component of broad-leaf wood such as poplar wood. Therefore, the method has good practical application value.

The invention discloses a natural gas demercuration device and method. The device comprises a raw gas precooler, a raw gas separator, a raw gas aftercooler, a refrigerating facility, a low-temperature separator and the like which are connected in sequence. The natural gas demercuration device and method have the positive effects that an internal demercuration member is arranged by improving an internal structure of the low-temperature separator, such that an alcohol-hydrocarbon solution is extracted from the side surface instead of being extracted from the bottom by low-temperature separation, and low-temperature liquid mercury is discharged from the bottom of the low-temperature separator to be subjected to low-temperature demercuration, dehydration and dealkylation. Mercury, water and heavy hydrocarbons in raw gas are separated and removed effectively by the low-temperature separator through adopting a low-temperature separation, demercuration, dehydration and dealkylation system consisting of the raw gas precooler, the raw gas separator, the raw gas aftercooler, the refrigerating facility and the low-temperature separator.

The invention discloses a crop straw crushing and sorting integrated device and method. The device comprises a straw crusher and a sorting device. The straw crusher is connected with one end of the sorting device through an air pipe. The other end of the sorting device is connected with an induced draft fan through an air pipe. The sorting device is a centrifugal separator set. The centrifugal separator set comprises a first centrifugal separator, a second centrifugal separator and a third centrifugal separator which are connected in sequence. The straw crusher is connected with the first centrifugal separator through an air pipe. The third centrifugal separator is connected with the induced draft fan through an air pipe. By the adoption of the crop straw crushing and sorting integrated device, the production efficiency of crop straw artificial boards is greatly improved, the utilization rate of crushed aggregates is greatly increased, and the artificial boards made of the crushed aggregates obtained through the device are high in internal bond strength and good in surface quality.

The invention discloses a method for producing high-purity electronic titanium dioxide. Panzhihua titanium concentrate with the concentration larger than or equal to 80% is selected as a raw material,sulfuric acid is used for acidolysis of the titanium concentrate, a flocculating agent composed of a maleic anhydride-styrene sulfonic acid copolymer, sodium lignin sulfonate and polyaluminum chloride is added for impurity removal treatment, standing and filter pressing are conducted for solid-liquid separation, filter-pressed liquid enters a vacuum crystallization system, secondary filter pressing is conducted, and refined titaniferous solution is obtained; water is added into the refined titaniferous solution to adjust the concentration to 95-200g / L, heating and stirring are performed, anda crystal form control agent is added to react to obtain a hydrolysate; the hydrolysate is washed until the iron ion content is below 150ppm, then sulfuric acid is added for bleaching and washed for the second time until the iron ion content is below 50ppm to obtain slurry; squeezing is performed by a filter press, a filter cake is calcined in a rotary kiln and crushed to obtain the electronic titanium dioxide. The purity of the titanium dioxide product prepared by the method reaches 99.5% or above, the particle size distribution is 200-400 nm, the particle size distribution is narrow, the particle size distribution is uniform, the powder whiteness reaches 90% or above, and the requirements of middle-high-end electronic-grade titanium dioxide can be met.

The invention discloses a method for washing high-resistivity and low-resistivity silicon materials. The method comprises the following steps of: soaking the silicon material into hydrofluoric acid or a mixed solution of hydrofluoric acid and ammonium fluoride, after soaking, taking out the silicon material and washing the silicon material to be neutral with water; preparing the mixed solution of hydrofluoric acid and hydrogen nitrate, adding the silicon material into a plastic container, adding the prepared mixed solution, after reaction, lightly swashing the silicon material with clean water, enabling the low-resistivity silicon material to float on water surface, thereby realizing separation of high-resistivity silicon material and low-resistivity silicon material; mixing the mixed solution of hydrofluoric acid, hydrogen nitrate and glacial acetic acid, adding the separated high-resistivity material into the mixed solution, stirring and adding hydrogen peroxide at intervals, then, taking out the material and washing the material to be neutral with water; adding the high-resistivity material into an alkali wash basin, adding solid sodium hydroxide, adding a sodium hydroxide solution simultaneously, stirring for reaction, then, washing the alkali liquor away by the clean water; soaking the high-resistivity material into electronic grade hydrochloric acid, after soaking, washing the high-resistivity material to be clean with pure water; and finally, executing ultrasonic treatment with pure water, and then, fishing out the high-resistivity material, and drying.

The invention discloses a production method for high purity medical grade valine. Industrial valine raw material is prepared to be water solution higher than 5 percent under the temperature of 50 to 65 DEG C, flocculating agent is added, modified activated carbon is added after filtering, ultrafiltration is performed by using an ultra filtration membrane with molecular weight cutoff larger than 500, then vacuum concentration and cooling crystallization are performed to obtain the crystal product of medical grade valine, mother solution is added into a gel chromatography column for chromatographic separation, pure water with the temperature of 40 to 50 DEG C is taken as eluate, valine solution flowing out of the column is collected, after concentrated crystallization, the crystal product of medical grade valine is obtained, and finally, the removing rate of bacterial endotoxin and protein in the product can reach 99 percent, lactamic acid, aminocarproic acid and isoleucine can be effectively removed, the purity of the product can reach 99 percent, medical grade standards are met, the comprehensive yield of products can reach more than 96 percent, and large-scale production can be achieved.

The invention discloses a device for absorbing and separating oil fouling of a biomass boiler. The device comprises an oil fouling separation pipe body; the oil fouling separation pipe body is formed by a flue gas inlet pipe section, an oil fouling separation pipe section and a flue gas outlet pipe section which are sequentially communicated; the flue gas inlet pipe section is set into a horn shape, and the pipe diameter of the flue gas inlet pipe section is gradually increased along the forwarding direction of flue gas; the flue gas outlet pipe section is set into a horn shape, and the pipe diameter of the flue gas outlet pipe section is gradually decreased along the forwarding direction of the flue gas; the outer side wall of the oil fouling separation pipe section is evenly provided with a plurality of spray pipes; nozzles of the spray pipes extend into the oil fouling separation pipe section; the spray pipes are communicated with a storage tank at the same time, and oil fouling absorption powder is contained in the storage tank; the bottom surface of the oil fouling separation pipe section is arranged in a manner of gradually inclining towards the lower left side or lower right side along the forwarding direction of the flue gas; the lower end of the bottom surface has an ash discharge hole; an ash discharge valve used for opening and closing the ash discharge hole is arranged at the ash discharge hole. The device is capable of effectively separating and removing the oil fouling in the dust-containing flue gas.

The invention relates to an extraction method of a heparin sodium crude product, which comprises the steps that a raw material from a fresh pork lung or a thawy pork lung is minced into a pasty material; a cell activator is added for catalysis; biological enzyme enzymolysis, decontamination, separation and filtering are performed; a solution containing heparin sodium is obtained; resin adsorption, elution, organic solvent precipitation and drying are performed; and the heparin sodium crude product is obtained. The extraction method of the heparin sodium crude product can improve the product quality, can increase an effective yield, can lower the production cost, is suitable for industrial production, reduces waste emission, and has social, environmental and economic benefits.

The invention provides preparing methods of two Tadalafil intermediates shown as I and II in a solvent that is dimethyl carbonate. The intermediate I is prepared without the existence of thionyl chloride. High-purity stereoisomer that is the intermediate II can be prepared in the dimethyl carbonate solvent.

The invention discloses a garbage leachate treatment technique, comprising: homogenizing the water quality of garbage leachate by an adjusting tank, and then leading the garbage leachate to enter a coagulative precipitation tank; then, alkalifying and deaminizing, and lifting into a UASB+AF tank through pump; after that, removing a great deal of organic matter, and leading the effluent to enter apacked A / O tank together with the sewage processed by the original sewage plant; removing the organic matter and the ammonia nitrogen which are difficult to degrade, and then passing through a secondary sedimentation tank and entering an advanced oxidation system for deep oxidation; leading the effluent to enter a biological aerated filter, processing by a sand filtering system and then entering a membrane processing system; and finally, ensuring the water quality of the effluent to be stable and reach the standard. As the garbage leachate treatment technique adopts the technology of 'biochemistry+ physical chemistry+ membrane separation' to treat the leachate, the effluent can reach the first grade discharge standard (GB16889-1997).

The invention discloses a crop straw crushing and sorting integrated device and method. The device comprises a straw crusher and a sorting device. The straw crusher is connected with one end of the sorting device through an air pipe. The other end of the sorting device is connected with an induced draft fan through an air pipe. The sorting device is a centrifugal separator set. The centrifugal separator set comprises a first centrifugal separator, a second centrifugal separator and a third centrifugal separator which are connected in sequence. The straw crusher is connected with the first centrifugal separator through an air pipe. The third centrifugal separator is connected with the induced draft fan through an air pipe. By the adoption of the crop straw crushing and sorting integrated device, the production efficiency of crop straw artificial boards is greatly improved, the utilization rate of crushed aggregates is greatly increased, and the artificial boards made of the crushed aggregates obtained through the device are high in internal bond strength and good in surface quality.