142results about How to "Reduced drying process" patented technology

The invention belongs to the technical field of rice matrix seedling and discloses an organic ecological substrate for rice industrialized seedling production. The organic ecological substrate for rice industrialized seedling production comprises the following components in parts by mass: 20 to 40 parts of animal dung, 30 to 50 parts of organic waste, 15 to 30 parts of a conditioner, 20 to 40 parts of carbonized rice husk and 0.01 to 0.03 part of a microbial agent. The organic ecological substrate has high nutrient content and good seedling strengthening effect. The invention also provides a preparation method of the organic ecological substrate for rice industrialized seedling production.

The invention relates to a battery-grade cobaltosic oxide preparation method, which comprises the following steps of: preparing solution of cobalt and solution of precipitator from a cobalt raw material and a precipitator by using de-ionized water respectively; preparing a precursor by using a homogeneous crystallization precipitation method, wherein the precipitate precursor is synthesized by adding the prepared solution of cobalt at a certain concentration and the solution of precipitator at a certain concentration into a reactor according to a certain molar ratio by using a cocurrent-flow feeding method, and effectively controlling chemical impurities, crystallinity of crystals, granularity, density and the like of the precursor by controlling parameters such as reaction temperature, feeding speed, pH value and stirring speed; directly filling a water-containing filter cake into a pot after washing and dewatering, and controlling grain size and crystal shape by using low-temperature dehydration phase-change calcination and high-temperature nodulizing sintering; crushing by using a machine and performing classified activation treatment; and finally, removing magnetic metal foreign bodies to obtain the battery-grade cobaltosic oxide similar to spheres. The battery-grade cobaltosic oxide has high density and high chemical purity, the grain size is easy to control, grain composition is uniform and narrow in distribution, and the magnetic metal foreign body content is low.

The invention discloses an iron oxide ore joint beneficiation process, which comprises the following steps: (1) dry selection and discarding of iron oxide ore to obtain pre-selected coarse-grained ore, pre-selected fine-grained ore and waste rock; (2) high-pressure Roller mill crushing: the pre-selected coarse-grained ore obtained in step (1) is fed into a high-pressure roller mill for crushing; (3) dry grinding: the crushed product in step (2) and the pre-selected fine-grained ore in step (1) Combined for dry closed-circuit grinding; (4) Fluidized reduction roasting: a. Put the ground product obtained in step (3) into the fluidized reduction roaster; b. Preheating; c. Heating; d. Magnetization roasting; e . Cool to below 200°C to obtain roasted ore with a magnetite content greater than 90%; (5) beneficiation of roasted ore to obtain iron concentrate products with a grade of 57%-65%. The present invention can effectively solve the current iron oxide ore beneficiation There are technical problems such as low resource utilization rate, poor concentrate quality and high energy consumption in the process.

The invention discloses a method for casting a wear-resisting sand pump. In the wear-resisting sand pump, a pump impeller, a material inlet and a pump body are precisely cast by a vacuum lost mold; a shaft is connected with the pump impeller through an outer cone and an inner cone; and the outer cone and the inner cone are rectangular, prismatic or hexagonal and are fastened by screws. The precise casting method comprises the following process steps of: 1, partitioning a foam material to obtain main parts, and bonding by using an adhesion agent to obtain an integrated model of which the shape is consistent with the main shape of a casting; 2, coating a mica-based coating onto the outer surface of a foam model, and drying; 3, putting the dried foam model into a sand box, filling dry sand into the sand box, and performing three-dimensional oscillation compaction; 4, vacuumizing the sand box by using a vacuum system through negative pressure; 5, pouring molten metallic iron from the feeder head of the sand box to replace the position of a foam-molded model so as to obtain a corresponding main part of the sand pump; and 6, condensing. The wear-resisting sand pump has the characteristics of high casting quality, high surface precision, high rigidity, high wear-resisting property, environment friendliness and the like, and is sanitary, safe and reliable.

The invention provides a method for preparing cobaltosic oxide with large grain size and high safety, comprising the following steps: preparing the raw material cobalt and a precipitant into cobalt solution and precipitant solution with deionized water, adding the cobalt solution and the precipitant solution which are prepared to certain concentration to a reaction vessel by the charging methods including cocurrent charging according to certain molar ratio, preparing the cobalt salt precursor by controlling the reaction temperature, charging speed, PH value and stirring speed, washing and dehydrating the precursor, directly putting the water-containing filter cake into a pot, spheroidizing and calcining the pot at high temperature, carrying out mechanical grinding, grading and activating, controlling the grain size and the crystal morphology and finally removing the magnetic metal foreign bodies, thus finally obtaining the high quality battery grade cobaltosic oxide. The method is simple in process, easy to operate, low in cost, energy-saving, environment-friendly and suitable for industrial production. The prepared cobaltosic oxide looks like spheroid and has large grain size, good powder flowability and uniform granularity.

The invention discloses a coke dry quenching method for a coal coking device. The coke dry quenching method is suitable for a semi-coking device. Usually, multiple coking chambers share a coke quenching system. The coke dry quenching method comprises that 1, hot coke from the bottom of a coke cooling section of a coking chamber is pushed to a hot coke transferring warehouse V1 by a coke pusher J1; 2, the hot coke is regularly discharged into the hot coke transferring warehouse V1 by a V1 charging valve and then the V1 charging valve is closed; and after the hot coke transferring warehouse V1 is pressurized by gas from a coke quenching tower T1, the hot coke is regularly discharged into the coke quenching tower T1; 3, the coke quenching tower T1 is operated under pressurized conditions and the hot coke moves from bottom to top under the action of gravity and contacts with inert gas such as CO2 flowing from bottom to top so that a temperature of the hot coke is reduced; and the cold coke is pushed into a cold coke transferring warehouse V2 by a coke pusher J2; 4, the cold coke is regularly discharged into the cold coke transferring warehouse V2 by a V2 charging valve and then the V2 charging valve is closed; and after the cold coke transferring warehouse V2 is deflated so that a cold storage chamber V3 is depressurized, the cold coke is regularly discharged into the cold storage chamber V3 or is transmitted into the cold storage chamber V3 by a belt; and 5, hot heat-carrying gas G2 departing from the coke quenching tower T1 enters into a spray tower T2 and then carries out counter-current contact with recycled cold spray water W1 so that the hot heat-carrying gas G2 is cooled by heat transmission; and the cooled gas as G1 is fed back to the coke quenching tower T1 for recycle.

The invention discloses a preparation method of a high-imido and high-methoxylation melamine resin capable of being cured at low temperature. According to the method, the high-imido and high-methoxylation melamine resin capable of being cured at low temperature is obtained by reacting melamine, a formaldehyde solution and methanol, paraformaldehyde is not required to be added, the step of synthesis of hydroxymethylation melamine as an intermediate product is omitted, preparation costs are reduced, links of crystallization, drying and the like of the intermediate product are omitted, energy consumption is low, a technological process is simple, the methanol only needs to be added at one step in reaction, and the preparation method is easy to control. In addition, a mixture of hydrochloric acid and formic acid is used as an etherification catalyst, and the effect of the obtained product is better than that of a single acid catalyst.

The invention discloses common perilla and brown sugar stuffing sweet dumplings and a production method thereof. The common perilla and brown sugar stuffing sweet dumplings consist of sweet dumpling stuffing and sweet dumpling wrappers, wherein the sweet dumpling stuffing comprises the components of white granulated sugar powder, plant oil, drinking water, wheat flour, brown sugar, common perilla powder, black sesame powder, peanut powder and soybean meal; and the sweet dumpling wrappers comprise the components of water-containing water-milled glutinous rice flour, cooked sticky rice roll, drinking water and konjaku flour. The production method of the common perilla and brown sugar stuffing sweet dumplings comprises the following steps: making the aqueous water-milled glutinous rice flour; preparing a sweet dumpling wrapper dough; preparing the stuffing; and making the sweet dumplings. If the prepared sweet dumplings are frozen quickly and preserved in a freezing manner, the preservation time of the sweet dumplings can be prolonged. Compared with the prior art, the common perilla and brown sugar stuffing sweet dumplings are rich and balanced in nutrition, have the effects of improving health, are good in color and mouthfeel, and are fine and smooth in taste. Moreover, the production method of the common perilla and brown sugar stuffing sweet dumplings is convenient and is easy in operation. The produced sweet dumplings are safer and more sanitary by means of inhibition of the breeding of microorganisms.

The invention relates to a helium mass spectrographic leak detector for leak detection of air filters. The helium mass spectrographic leak detector comprises an operating rack and a gas supply pipeline; a mounting frame is fixedly connected to a top plate of the operating rack, a lift cylinder with downward extending end is fixedly connected to the top of the mounting frame, a lift plate is arranged below the top of the mounting frame, and a guide rod in slide connection with the mounting frame is fixedly connected to the lift plate; a piston rod end of the lift cylinder is fixedly connected with a connecting plate, a fine-tuning cylinder with a downward extending end is fixedly connected between the connecting plate and the lift plate, a piston rod end of the fine-tuning cylinder is connected with a helium gas sealing hood with a downward opening and an internal sensor; a sealing pad which is in clearance fit with the helium gas sealing hood is arranged at the position, on the top plate of the operating rack and under the helium gas sealing hood; one end of the gas supply pipeline is communicated with a helium gas source while the other end thereof is communicated with a gas supply hose, and an inner cavity plug with a center through hole is arranged at the end of the gas supply hose. The helium mass spectrographic leak detector is used for detecting by a dry detection method,has high detection efficiency and is easy to operate.

The invention relates to a Dendrobium officinale toothpaste and its preparation method. Nowadays, there is no Dendrobium officinale toothpaste, in which active ingredients in Dendrobium officinale can be retained, or a preparation method thereof. The Dendrobium officinale toothpaste provided by the invention comprises, by weight, 4.0-6.0 parts of a Dendrobium officinale extract which contains polysaccharide, chlorophyll, vitamin and protein. The preparation method of the Dendrobium officinale toothpaste successively comprises the following processes: A, pretreatment process; B, low-temperature ultramicro-grinding process: placing water of 2-10 DEG C and cut-off Dendrobium officinale into a homogenizer with the weight ratio of Dendrobium officinale to water being 1:6-1:8, starting the homogenizer and controlling discharging material fineness to below 200-300 microns so as to obtain a mother liquor of a Dendrobium officinale extract; C, filtering process; D, paste preparation process; and E, filling process. According to the invention, a Dendrobium officinale fresh product used as a raw material undergoes low-temperature extraction. The contents of polysaccharide, vitamin, chlorophyll, free amino acid and the like in the product obtained are high.

The invention discloses a method and a device for preparing a lithium iron phosphate precursor by a high-temperature superheated steam dry method. A steam kinetic energy milling machine is arranged, high-temperature superheated steam is taken as a smashing power source, the lithium iron phosphate precursor mixture is first atomized and then is subjected to ultrafine grinding, and the method belongs to a dry smashing method to prepare ultrafine powder. Since the gas source of the whole system is high-temperature superheated steam, a water-containing material is rapidly dried during the smashing process, the drying process is reduced, the energy consumption is reduced, and the production cost is reduced. Compared with the prior art, the method has the advantages that the cost can be saved by 1190 yuan/ton.

The invention discloses a tencel facial mask containing a dendrobium officinale ingredient. The tencel facial mask is prepared from four components A, B, C and D. Dendrobium officinale extract is used as a main active ingredient and combined with tremella fruit body extract, saccharomyces lysate extract and herba centallae extract, and the four components are synergistic to act deeply at the bottom layer of skin to supplement moisture and enhance moisturizing ability of the skin, so that moisture content in the skin can be maintained proper, cell metabolism of the skin can be improved, and microcirculation of the skin can be regulated; moisture locking is realized while moisture supplementing, so that the skin is promoted to restore a good shielding function, moisture loss is reduced effectively, moisture is locked, long-acting moisturizing is maintained for 24h, moisturizing performance, elasticity and flexibility of the skin are improved, the skin is refined and nourished, drying and itching of the skin are relieved, and natural regulating ability of the skin restores.

The invention belongs to the field of polycrystalline silicon ingot, and particularly relates to a device and a process method for preparing polycrystalline silicon through the coupling of electronic beam smelting and the crystal growing technology. The device for preparing the polycrystalline silicon through the coupling of the electron beam smelting and the crystal growing technology is characterized in that a graphite crucible is arranged inside a furnace body, the outer wall of the graphite crucible is sequentially provided with a graphite heating body and a graphite insulating sleeve from inside to outside, an upper graphite cover plate of the graphite insulating sleeve can be horizontally moved, and the position on one side of the furnace body, parallel to the upper graphite cover plate, is externally connected with a hollow plate groove; a water-cooling ingot pulling mechanism is installed on the center position of the bottom of the graphite crucible; a cooling circulating water pipe is arranged inside the water-cooling ingot pulling mechanism; the top of the furnace body is provided with an electron gun, the upper end of the side part of the furnace body is provided with an inflating valve, and the lower end is provided with a deflation valve. The process method for preparing the polycrystalline silicon through the coupling of the electron beam smelting and the crystal growing technology comprises the steps of filling materials, vacuumizing, charging argon to increase the pressure, heating to smelt the silicon material, smelting through an electron beam, growing the crystal, annealing the ingot, cooling and opening the furnace to take the ingot.

The invention belongs to the field of metallurgy and particularly discloses a rotary hearth furnace treatment process for iron-containing dust slime. The rotary hearth furnace treatment process comprises the steps that the iron-containing dust slime, pulverized coal and/or carbon-containing dedusting ash are subjected to proportioning, a binding agent is added, and uniform mixing is conducted; after cold consolidation molding and drying are conducted, the mixture is fed into a rotary hearth furnace to be reduced; high-temperature pellets obtained after reduction are subjected to temperature reduction and heat recycling through a solid waste heat boiler; and flue gas of the rotary hearth furnace is subjected to step-by-step heat recycling through the waste heat boiler, a heat exchanger and fresh pellet drying equipment in sequence. According to the rotary hearth furnace treatment process for the iron-containing dust slime, the drying and energy consumption links of the raw material slime are omitted, the blocking problem of the flue gas system heat exchanger is solved, heat gradient utilization and recycling maximization are achieved, smooth operation and low energy consumption of a rotary hearth furnace production line are ensured, and the market competitiveness of the rotary hearth furnace process can be significantly improved.

The invention relates to the technical field of traditional Chinese medicine decoction piece manufacturing, in particular to a traditional Chinese medicine decoction piece drying and impurity removingall-in-one machine. The machine comprises a device body, a motor and an air heater, wherein an impurity removing mechanism is arranged in the device body, and the impurity removing mechanism comprises a first screening barrel, first screening holes, a first rotating wheel, a second rotating wheel, a second screening barrel and second screening holes. The first screening holes are formed in the surface of the outer side of the first screening barrel, and the first rotating wheel is welded to the right end of the first screening barrel. The problems that traditionally, traditional Chinese medicine decoction pieces are generally dried and subjected to impurity removal separately, a large amount of time needs to be wasted when the traditional Chinese medicine decoction pieces are dried and subjected to impurity removal greatly, traditionally, the traditional Chinese medicine decoction pieces can only be dried on one sides generally, the complete drying time of the traditional Chinese medicine decoction pieces is long, time is wasted, and the labor cost is increased, so that the cost of the traditional Chinese medicine decoction pieces is increased, the drying and impurity removing time of the traditional Chinese medicine decoction pieces is effectively shortened, and the cost of the traditional Chinese medicine decoction pieces is reduced.

The invention provides a method for preparing small-fraction filling composite masterbatch through a semi-open type superheated steam spray-drying method. The technological method is used for preparing rubber nanocomposites through wet mixing and is less in energy consumption, safe and simple in technology. Rubber latex is selected and used for being mixed with filler slurry, a certain quantity of rubber auxiliary is added and stirred to be uniform, an obtained mixture is dried through a semi-open type superheated steam spray tower at a certain feed rate, the nano composite rubber masterbatch is prepared and collected and passes through a sieve plate, and blocks are formed after rolling is conducted. The method is simple in technology, complete in reaction, safe, free of hidden dangers, less in energy consumption and capable of reducing cost; human factors are few, continuous production can be achieved, the product quality is stable, industrial research is easy, and green and environmental protection is achieved. By means of the rubber masterbatch produced through the method, inorganic filler can be uniformly dispersed in a rubber matrix in a nano-scaled mode, and the rubber masterbatch can be applied to the fields such as saloon car tread rubber and engineering tread rubber.

The invention discloses a textile yarn bleaching and drying device, which includes a working box, a wire inlet is opened on the left side of the working box, and a first roller is movably connected to the inner cavity of the working box and located on the right side of the wire inlet through a bearing. Shaft, the top of the inner cavity of the working box is fixedly connected with the first electric telescopic rod on the right side of the first roller shaft, the bottom of the first electric telescopic rod is movably connected with a pulley through the rotating shaft, the bottom of the inner cavity of the working box is located on the first The lower part of the electric telescopic rod is fixedly connected with a bleach box. The present invention uses the first roller shaft, the first electric telescopic rod, the pulley, the bleaching box, the partition, the through hole, the first motor, the fan blade, the second roller shaft, the heating block, the hot air blower, the wire outlet, the second motor, The combination of the second electric telescopic rod, threaded sleeve and take-up shaft can quickly and easily bleach the yarn, and directly dry and collect the yarn after bleaching, without manual drying, which greatly improves the work efficiency. .

The invention relates to an earthworm drying device. The earthworm drying device comprises a cleaning section and a drying section, wherein the cleaning section comprises a cleaning box, a water pipe and a cleaning conveying belt, the water pipe is arranged on the upper portion of the cleaning box and connected with the water tank through a pipeline, the cleaning conveying belt is arranged on the lower portion of the water tank, and a water collecting tank is arranged below the cleaning conveying belt; the drying section comprises a drying box, a heating rod and a drying conveying belt, the heating rod is arranged at the center inside the drying box, and the drying conveying belt is spirally arranged around heating rod; one side of the top of the drying box is provided with an air outlet, and one side of the lower portion of the drying box is provided with an air inlet connected with a fan; the middle of the inner wall of the drying box is provided with a temperature sensor and a humidity sensor, and the outer side of the drying box is provided with a controller. The earthworm drying device is simple in design, good in drying performance, capable of reducing silt inside earthworm bodies, capable of reducing the ash content of earthworm finished products and capable of guaranteeing product quality.

The invention relates to an integral casting technology of a tire mold patterned ring basic model, silica gel, gypsum and an aluminum ring, which belongs to the semi-steel tire mold field. The technology comprises the following steps: 1.1 a basic model base is prepared to a basic tire shape , a whole circle is divided into eight equal parts, the external surface of the basic model base is milled a patterned surface; 1.2 the basic model is placed in a silica gel liner mold, then the regulated silica gel is injected between an inner wall of the silica gel liner mold and a cylindrical surface ofthe basic model; 1.3 the silica gel liner mold is opened after the silica gel in the silica gel liner mold is solidified, the formed silica gel is dismounted from the surface of the basic model; 1.4 the formed silica gel is placed in the silica gel liner mold, then secondary gypsum is injected in the silica gel; 1.5 a gypsum model is placed in a secondary drying furnace for heating and drying. The silica gel and gypsum model of the present invention are capable of realizing one-step forming, optimizing the technology step of the tire mold, reducing the production manufacture cost and decreasing workload and labor intensity of operators.