41results about How to "Reduce drying process" patented technology

The invention discloses a method for extracting stevioside from fresh stevia rebaudiana leaves, which comprises: crushing fresh stevia rebaudiana leaves with homogenizing crushing equipment under a condition of water, performing pressure filtration in continuous automatic discharge filtering equipment, subjecting the filtrate to flocculation by mixed flocculating agent; and absorbing by resin, analyzing, desalting and decolorizing by resin, concentrating and spray drying to obtain the stevioside product. In the invention, time and working procedures are saved, a long-distance transport process is avoided, raw material cost is lowered, discharge of waste water is reduced greatly, and clean production can be realized basically.

The disclosed preparation method for charcoal comprising: crushing the solid waste from extracted traditional drug or plant to extrude into bar-form; loading the product into retort for charring reaction with three stages for 10-30min at 120Deg, 200-400min at 120-350Deg and 100-300min at 350-450Deg, respectively. Wherein, firing the exhaust gas in combustion chamber to provide heat source. This invention has yield rate as 40-55% with low energy consumption and little pollution.

The invention discloses a preparation method of an acetic acid-activated sludge-based adsorbent. The specific steps are as follows: taking an appropriate amount of sludge and glacial acetic acid to obtain a homogeneous acetic acid-activated sludge slurry; drying the homogeneous acetic acid-activated sludge slurry to obtain dry sewage Sludge and pulverize, and screen out sludge particles with a particle diameter of 1-2mm; add an activator solution compounded with zinc chloride and sulfuric acid, and perform pyrolysis reaction under nitrogen atmosphere to obtain sludge pyrolysis residue; wash with distilled water after grinding ,dry. The invention has simple manufacturing process and convenient operation. It adopts wet sludge to be directly pyrolyzed without drying treatment. The pyrolysis temperature is low, which belongs to low-temperature pyrolysis. While reducing the sludge drying process, it saves a lot of energy and is more energy-saving and environmentally friendly. The sludge adsorbent is prepared by the chemical activation method of the compound activator, and the carbon-containing compounds in the sludge are condensed into non-volatile polycondensation carbon through dehydration, condensation, moistening and expansion of chemical agents, so as to obtain adsorption with a well-developed porous structure. agent.

A manufacturing method for cold-pressed pellets for steelmaking comprises the manufacturing technological steps that (1) steelmaking secondary fly ash, converter mud and oxide scale are mixed in advance with the weight ratio of (20-23):(55-65):(10-20), and evenly stirred into a mixture; (2) a binder is prepared through water-soluble sodium carboxymethycellulose and industrial effluent at the weight ratio of 1:(15-50) for standby application; (3) a magnesium chloride solution is prepared by magnesium chloride hexahydrate and water at the weight ratio of 1:1 for standby application; (4) 3%-5% of binder and 0.5%-1.5% of magnesium chloride solution are added in the mixture, mixing is carried out by an edge runner mill for 100-150 s, and a pellet material is made; (5) the pellet material is put into a ball press machine to achieve cold-press formation, the diameter of the pellets is 45-55 mm*30-40 mm *20-30 mm, and the pellets are naturally stacked and aired. The cold-pressed pellets manufactured through the method have the advantages that the pellet forming rate is high, the bonding strength is large, the drying time is short after pellet formation, and use for steelmaking is convenient.

The invention discloses a preparation method of an energy-saving sludge-based adsorbent. The preparation method comprises the following steps: (1) placing residual wet sludge at a heating zone of a pyrolysis reactor of an external-heated tube furnace, wherein the residual wet sludge is doped with an activator FeCL2 and the content of moisture of the residual wet sludge is 60-90%, the mass part ratio of the FeCl2 to the residual wet sludge is 1 to (10-20), performing pyrolysis in a nitrogen atmosphere, wherein the temperature rising speed is 70-80 C degree per minute, the pyrolysis temperature is 550-560 C degree, the stay time is 10-15 minutes and the nitrogen blowing speed is 25-30ml per minute, switching off the tube furnace and a switch of a nitrogen tank after the reaction is completed and cooling to obtain pyrolyzed sludge residue; (2) collecting the pyrolyzed sludge residue, grinding, sieving with a 50-70 mesh screen to obtain sludge residue particles; and (3) washing the sludge residue particles with distilled water till a washing liquid is neutral and drying to obtain the sludge-based adsorbent. According to the preparation method, the energy consumption is effectively reduced and the environment friendliness is improved.

A preparation method of vat violet 1 belongs to the technical field of dye preparation. The preparation method comprises: adding isoviolanthrone, water and sulfuric acid to a container in sequence, performing grinding and pulverization, adding halogenated alkane to the ground mixture, adding a chloridizing agent below the liquid level, adjusting the pH value till the obtained solution is neutral,raising the temperature of the adjusted mixture till the mixture undergoes reflux, performing filtration till halogenated alkane is totally evaporated, cleaning the filtered cake with hot water till the filtrate is colourless, taking the filtered cake out, and drying the filtered cake to obtain vat violet 1. According to the technical scheme, defects that a large amount of solvent is hard to recycle and causes pollution due to a full-solution chlorination method are overcome. The synthesized vat violet 1 is a bright-colored red purple vat dye, is more bright gorgeous than a product sold in themarket, and is high in intensity of raw powder.

The invention discloses a method for directly producing non-spicy haematochrome from fresh chili pepper. The method mainly comprises the steps of firstly, soaking the fresh chili pepper for 1-2 hours by short carbon chain fatty alcohol or acetone of which the volume concentration is 10-60% at the temperature of 40-95 DEG C, filtering to obtain shredded filtrate and shredded filter residue; soaking the shredded filter residue for 1-2 hours by short carbon chain fatty alcohol or acetone or ethyl acetate of which the volume concentration is 80-100% at the temperature of 40-95 DEG C, filtering to obtain coarse extract filtrate; recovering the short carbon chain fatty alcohol or acetone or ethyl acetate in the coarse extract filtrate to obtain a haematochrome crude product; finally extracting the haematochrome in the haematochrome crude product by short carbon chain fatty alcohol or acetone or ethyl acetate of which the volume concentration is 90-100%, and recovering the short carbon chain fatty alcohol or acetone or ethyl acetate to obtain the refined product. The existing production line is applied by the method, so that high-quality natural chili pepper haematochrome which is free of peppery taste, free of 6# solvent residue, high in yield, bright-colored in color and luster and high in color value can be obtained.

The invention discloses a processing method of sour bamboo shoots with a special flavor. The method comprises the following steps: step 1. conducting cleaning; step 2. conducting finishing and cutting; step 3. conducting primary fermentation; step 4. conducting secondary fermentation; and 5. mixing the fermented bamboo shoots in southern stinky tofu brine fermentation liquor, or dehydrating, seasoning and sterilizing the stinky bamboo shoots according to edible requirements to obtain leisure foods, or to apply the bamboo shoots as seasonings of Liuzhou river snails rice noodles, instant rice noodles and instant noodles. Fresh bamboo shoots are directly soaked in water, the procedures of cooking and sun-curing in the general processing process are reduced, energy is saved, and the labor cost is reduced; Under the condition that salt is not added, the product contains high moisture, is convenient to store and long in period, and is a resource-saving product preservation method. The product is wide in application range and can be used as an auxiliary material for seasonings, ingredients and dietary fiber suppliers. The product is unique in flavor and is a special cold processing method.

The invention discloses compound salvia miltiorrhiza concentrated pills and a preparation method thereof, and relates to the technical field of traditional Chinese medicines. The compound salvia miltiorrhiza concentrated pills are prepared from the following raw materials in parts by weight: 130-140 parts of salvia miltiorrhiza, 40-45 parts of pseudo-ginseng and 2-3 parts of borneol. The preparation method of the compound salvia miltiorrhiza concentrated pills comprises the following steps: weighing the raw materials for later use; extracting the salviae miltiorrhizae by adopting an ethanol extraction method, and concentrating to obtain salviae miltiorrhizae thick paste; crushing cleaned and dried pseudo-ginseng medicinal material into fine powder, and uniformly mixing the fine powder withthe salvia miltiorrhiza thick paste; and grinding the borneol, dissolving the borneol with ethanol, uniformly mixing with the pseudo-ginseng fine powder and the salvia miltiorrhiza thick paste, pelleting, drying at low temperature, and coating with films to obtain the compound salvia miltiorrhiza concentrated pills. According to the preparation method of the compound salvia miltiorrhiza concentrated pills, a drying process is reduced in the mixing stage of the raw materials, the process is reduced, the loss of effective components is reduced, and the efficacy is better.

The invention discloses a filling equipment for liquor. The filling equipment for the liquor comprises a stand; the stand is vertically provided with limiting groove and a threaded hole; a threaded rod is in threaded connection to the interior of the threaded hole; the side wall of the stand is provided with a side hole; the side wall of the threaded rod is provided with a side rod which penetrates through the side hole and is used for driving the threaded rod to rotate; the top of the threaded rod is provided with a disc; a first spring is arranged between the disc and the limiting groove; the positions on the stand and on the two sides of the threaded rod are provided with tensioning mechanism used for limiting a winebottle respectively; the stand is provided with a pipeline into which awinebottle mouth is put; a vertical plate is vertically connected to the middle part of the pipeline in a sliding manner and is provided with a transverse plate and an L-shaped bottom hole; the bottom hole is communicated with the pipeline; the bottom of the pipeline is provided with an auxiliary pipe; the auxiliary pipe is provided with a first one-way valve which enters the pipeline through theexternal; and the stand is provided with a reciprocating mechanism used for driving the vertical plate to perform reciprocating movement in a vertical direction. The technical scheme of the inventionmainly solves the problem that the winebottle is adhered with dusts, and the quality of the liquor is influenced after the liquor is filled at present.

The invention belongs to the technical field of medicine preparation, and particularly relates to an amisulpride tablet and a preparation method thereof. The amisulpride tablet comprises the followingingredients: amisulpride, adhesives, filling agents, disintegrating agents, lubricating agents and auxiliary lubricating agents. According to the amisulpride tablet prepared by the invention, the problem that the amisulpride tablet is likely to be subjected to sticking is solved, in addition, the amisulpride tablet has a good similarity with the dissolution curve of an original drug, has a good product appearance, has good stability and preparation technology tolerance and is suitable for industrial mass production.

The invention discloses a low-cost drying technology for grains and agricultural and sideline products. The low-cost drying technology comprises an air dehumidification technology and a low-energy-consumption concentration and regeneration technology of a dehumidizer. According to the air dehumidification technology, a concentrated solution with hygroscopicity is adopted as a drying agent to be in contact with wet air, and dry air and a diluted dehumidizer solution are obtained; the dry air is used for drying and dehydrating grains and agricultural and sideline products. According to the low-energy-consumption concentration and regeneration technology of the dehumidizer, a diluted dehumidizer solution is subjected to concentration and regeneration treatment, water vapor is pumped out of a dilute solution through combination of a single-stage or two-stage vapor compressor and compressed for heating, the obtained compressed vapor is used for heating the dilute dehumidizer, concentration and regeneration of the dilute dehumidizer are achieved, and water leaves a system in a liquid water form. Gasification latent heat is recycled in the dehumidification process and the regeneration process, energy input of traditional drying is omitted, the system is suitable for drying treatment of large-scale grains and agricultural and sideline products, all-weather starting can be achieved, operation conditions are extensive, and engineering application is easy.

The invention relates to a recovery method of a valsartan mother liquor and belongs to the technical field of medical chemistry. The recovery method comprises the steps of dissolving the valsartan coarse product into a solvent containing 4-methyl-2-pentanone, heating till completely dissolving, cooling in stages for crystallization, and filtering to obtain valsartan solid. The purity of the valsartan mother liquor is greater than 99.8%, and the total recovery rate of the valsartan mother liquor is greater than or equal to 42%. For the valsartan coarse product having the isomer D-valsartan proportion within the range of 10% to 35%, the recovery method is capable of effectively reducing the isomer proportion, increasing the utilization rate of the valsartan and reducing the cost.

The invention relates to a marble desulfurizing agent desulfurization method and a byproduct cyclic utilization method thereof. A marble desulfurizing agent is prepared by the following steps: precipitating into a slurry through a precipitation tank, squeezing into a mud cake by a filter press, and grinding into sand powder by a grinding machine. The marble desulfurizing agent is mixed with water,and dispersing is performed by using a high-speed liquid dispersing machine to prepare an absorption slurry with the solid content of 20-35%; in an absorption tower, flue gas containing sulfur dioxide is in spray contact with an absorbent slurry for physical and chemical reaction, and finally byproducts CaSO3 and CaSO4.2H2O crystals for curing sulfur dioxide are generated and fall into an absorption slurry circulating pool arranged at the bottom of the absorption tower. A large amount of air is blown in to forcibly oxidize CaSO3 to generate CaSO4.2H2O. The desulfurizing agent is premixed withmarble dry powder, so that the problems that the desulfurized gypsum is high in water content and high in viscosity, accumulated materials are blocked, the grading is poor, and the rheological property is poor after water is added are solved. The mixture is mixed with other raw materials to prepare putty powder and self-leveling mortar, and the putty powder and the self-leveling mortar are addedinto concrete as a filling early strength agent.

The invention relates to the technical field of material crushing and drying, in particular to a slurrying steam flow crushing and drying machine which comprises a slurry storage cylinder, a heater, an air mill and a drying and collecting machine which are sequentially communicated, the slurry storage cylinder is connected with a slurry inlet pump and a slurry inlet pipe, and the slurry inlet pump is connected with the slurry storage cylinder and the heater through the slurry inlet pipe; materials in the slurry storage cylinder are conveyed into the heater to be heated; the air mill comprises a machine shell, a main shaft, a rotating target, a plurality of Laval nozzles, a classifying screen and a first driving mechanism used for driving the main shaft to rotate, the main shaft is rotatably and longitudinally arranged in the machine shell, the main shaft penetrates through and fixes the rotating target and the classifying screen, the classifying screen is located above the rotating target, and the Laval nozzles are arranged around the circumferential side of the rotating target. Each Laval nozzle is communicated with an outlet of the heater through a steam slurry pipe; a discharging port is formed in the position, located above the classifying screen, of the machine shell and connected with a drying and collecting machine through a discharging pipe, and the drying and collecting machine is provided with an exhaust mechanism for conducting air draft on the discharging pipe. And the cost is low, and the crushing efficiency is high.

The invention discloses a spiral magnetic field type micro powder magnetic separator. The spiral magnetic field type micro powder magnetic separator comprises a rotating cylinder (3), an outer cover (2) externally sleeving the rotating cylinder (3), spiral magnetic rolls (6) fixed in the rotating cylinder (3) and a driving device driving the rotating cylinder (3) to rotate; gaps exist between the rotating cylinder (3) and the outer cover (2) and between the rotating cylinder (3) and each of the spiral magnetic rolls (6); feed inlets (5), from which materials enter a cavity between the spiral rotating cylinder (3) and the outer cover (2), are formed in the upper ends of the outer cover (2); finished product outlets (7) are formed in the lower end of the cavity; iron material outlets (8) are formed in the lower end, corresponding to the spiral magnetic rolls (6), of the rotating cylinder (3); the magnetic field directions of the spiral magnetic rolls (6) incline downward and form a set angle with the horizontal plane; and the spiral magnetic rolls (6) extend to the upper portions of the iron material outlets (8). The spiral magnetic field type micro powder magnetic separator effectively solves the problems that materials and magnetic substance in micropowder, the granularity of which is smaller than 320-meshes, are hard to separate and the like.