70results about "Drying using combination processes" patented technology

A shoe care device includes a cabinet and a door. The cabinet forms an accommodation space and a main opening. The main opening opens the accommodation space in a first direction which is the horizontal direction. The door is configured to open or close the main opening. The cabinet and the door together form the accommodation part. The accommodation part includes an accommodation bottom part, an accommodation extension part, and an accommodation side part. The accommodation bottom part is formed on the upper surface of the cabinet. The accommodation bottom part forms a surface on which an item can be seated. The accommodation extension part is formed on the upper surface of the door. The accommodation extension part has a surface, which is adjacent to the accommodation bottom part and is formed to have the same height as the accommodation bottom part.

The invention relates to a waste vinasse drying treatment method. The method comprises the following steps: carrying out mechanical pressure filtration on original waste vinasse provided in batches in a solid-liquid separation manner; dehydrating the waste distiller's grains in a manner of removing moisture in the waste distiller's grains and gas influencing the caking rate; and screening the high-fiber waste vinasse and the heated and dehydrated waste vinasse separated from the organic matter-enriched waste vinasse based on a protein content differential separation mode to obtain oversize products for pyrolysis and undersize products for feed. According to the method, more moisture is reserved in the waste distiller's grains with high caking rate in mechanical filter pressing, the water in the waste distiller's grains can enable the waste distiller's grains to be agglomerated more easily, meanwhile, the high heat capacity characteristic of water can provide more uniform heat conduction for the waste distiller's grains, and the situation that the internal and external dehydration uniformity is not uniform due to local overheating of the waste distiller's grains is avoided.

The invention belongs to the technical field of biological medicine, and discloses a method for recycling moisture of cistanche based on evaporation, cistanche rotary evaporation recycled water and application, the method comprises the following steps: selecting, cleaning, wiping and cutting cistanche, drying the cistanche by adopting rotary evaporation drying, and recycling moisture generated in the process to obtain the cistanche rotary evaporation recycled water. According to the method, the comprehensive utilization rate of the cistanche drying process is increased, the application field of food and medicine homologous agricultural product processing by-products is expanded, a new solution is provided for green sustainable development of the food industry, the problems of waste water recycling and reutilization in the food and medicine homologous agricultural product drying process are solved, and the method is suitable for industrial production. And a new technical route is provided for active ingredient recovery and resource cyclic utilization of cistanche deserticola.

The invention relates to the technical field of textile engineering, and discloses a textile fabric drying device for textile engineering and a using method thereof.The textile fabric drying device comprises a drying chamber, flow guide holes are formed in the two sides of the drying chamber, and a driving shaft and a transmission shaft which are symmetrically arranged are rotationally arranged on the two sides of the inner wall of the drying chamber correspondingly; a vertical plate is fixedly arranged on the inner wall of the drying chamber, sliding holes are formed in the two ends of the interior of the vertical plate, sliding blocks are arranged in the sliding holes in a sliding and penetrating mode, connecting frames are fixedly arranged on the outer walls of the sliding blocks, pressing plates are fixedly arranged at the ends, close to each other, of the two connecting frames, and a movable extrusion mechanism is arranged on the back side of the vertical plate; an air heater is fixedly arranged on the back side of the drying chamber, and the air outlet end of the air heater communicates with an air outlet pipe. According to the textile fabric drying device for textile engineering and the using method thereof, the upper side and the lower side of the textile fabric can be heated at the same time, it is guaranteed that the textile fabric can be effectively dried in the conveying process, and drying blind areas are avoided.

The invention belongs to the technical field of wafer processing equipment, and discloses wafer drying equipment which comprises a centrifugal cavity, a wafer bearing device is arranged in the centrifugal cavity, and the wafer bearing device comprises a wind shaft and a wafer bearing frame connected to the wind shaft; the wafer bearing frame comprises a plurality of wafer bearing layers arranged in the axial direction of the wind shaft, and each wafer bearing layer comprises a plurality of wafer bearing positions arranged in the circumferential direction of the wind shaft; the axis of the wind shaft is collinear with the rotating axis of the centrifugal cavity; a hot air channel is formed in the air shaft and comprises an axial air scattering channel and a radial air scattering channel, the axial air scattering channel extends in the axial direction of the air shaft, and the radial air scattering channel extends in the radial direction of the air shaft and communicates with the axial air scattering channel; and a plurality of radial air dispersing channels are arranged along the axial direction of the air shaft. By the adoption of the structure, centrifugal drying and hot air type drying are achieved at the same time, so that the wafer drying efficiency is effectively improved, and secondary carrying pollution is fundamentally avoided.

The invention relates to a process and apparatus for ultrasonic assisted drying of materials, in particular, but not exclusively, for the low temperature drying of materials that are heat sensitive. In particular, there is provided an apparatus for dehydration of water containing material comprising: an ultrasound emitter; an ultrasound transmission platform that directly or indirectly supports said material; a fluid retained between said emitter and said platform, through which ultrasound energy is transferred; and a gas stream device that directs drying gas to said material. There is also provided a method of dehydration of water containing material comprising locating the material either directly or indirectly on an ultrasound transmission platform of a dehydration apparatus that comprises: an ultrasound emitter; a fluid retained between said emitter and said platform, through which ultrasound energy is transferred; and a gas stream device that directs drying gas to said material; and exposing said material to ultrasound energy and drying gas flow for a time and under conditions suitable to achieve desired extent of dehydration of said material. In another aspect there is provided a material that has been dehydrated using the method or apparatus described above.

The invention relates to a drying method for polyglycollide warp-knitted support meshes for artificial skin, specifically comprising: pre-drying, deep drying, and fabric stress relaxation, which are performed sequentially. The drying method can completely remove water in polyglycollide warp-knitted support meshes as well as solvents left during the cleaning process, and can effectively maintain the properties such as tensile strength, pore size, and weight of the polyglycollide warp-knitted support meshes, thus being of great significance for the application of the polyglycollide warp-knitted support meshes in the field of medical artificial skin.

The invention relates to the technical field of vacuum drying, and discloses automatic vacuum drying equipment and a drying method.A vacuum drying oven, a vacuum device, a heating device, a rack automatic trolley and a transfer device are combined, all the parts are integrated through a control device, and the rack automatic trolley is used for achieving material feeding; loading of the vacuum drying oven is achieved through the transfer device, evacuation of the vacuum drying oven is achieved through the vacuum device, drying and cooling of the vacuum drying oven are achieved through the heating device, aeration of the vacuum drying oven is achieved through the aeration valve, and discharging of the vacuum drying oven is achieved through the transfer device. The full-process automatic vacuum drying operation of automatic material filling, automatic door closing and evacuation, automatic exposure and door opening and automatic discharging is achieved, and the full-process automatic vacuum drying device has the advantages of being high in automation degree, high in efficiency and high in safety.

The invention relates to the technical field of diuron post-treatment, and discloses a process for recovering a diuron drying solvent. Aiming at the problems of high drying energy consumption, high solvent residue and high toluene consumption caused by adopting toluene as a solvent in the existing diuron production, the process comprises the following steps: carrying out solid-liquid separation to obtain a diuron filter cake, carrying out sealed conveying, and sequentially carrying out vacuum belt type primary drying and far infrared radiation secondary drying, diffusion and desorption of residual toluene are promoted by utilizing a molecular resonance effect; generated toluene-containing steam is subjected to two-stage condensation recovery and modified activated carbon adsorption treatment, and drying parameters are dynamically adjusted in combination with an LSTM algorithm to ensure that the process is in a diuron thermal stability interval. According to the process, energy consumption and solvent consumption are effectively reduced, solvent residues are reduced, cost reduction and efficiency improvement are achieved, and product competitiveness is improved.

The invention relates to the technical field of etocrilene production, in particular to a method for drying pure etocrilene, the drying method adopts drying equipment for operation, the drying equipment comprises an outer tank body, a primary drying unit and a secondary drying unit, the primary drying unit and the secondary drying unit are arranged in the outer tank body, and the secondary drying unit is distributed around the primary drying unit; the first-stage drying unit comprises a plurality of material distributing and drying cavities distributed around the axis of the outer tank body and a pressure reducing system, and a material stirring mechanism is arranged in each material distributing and drying cavity. The top cover plate and the bottom cover plate are driven by the shaft rod to continuously rotate, so that the feeding channel and the discharging channel are in butt joint with the material distributing and drying cavities in sequence, feeding and discharging are conducted, wet products can be continuously fed, materials subjected to primary pre-drying can be continuously transferred into the secondary drying unit, and dried finished products are continuously discharged through the discharging opening; the limitation of batch operation that a double-cone dryer must be shut down for loading and unloading is overcome, and the production efficiency and the equipment utilization rate are improved.

The utility model discloses a traditional Chinese medicine disintegrating slag recovery device for spleen and stomach treatment, which belongs to the technical field of traditional Chinese medicine disintegrating slag recovery and comprises a drying tank and a tank cover mounted at a top opening of the drying tank. A metal centrifugal cage with a top opening attached to the lower surface of the tank cover is mounted on the inner side of the drying tank, a connecting frame is welded to the inner side of the metal centrifugal cage, a gear motor with the power output end in transmission connection with the connecting frame is mounted on the upper surface of the tank cover, a hopper is mounted on one side of the gear motor, and a hopper is mounted on the other side of the gear motor. A cylinder with the top end rotationally connected with the bottom of the metal centrifugal cage and the bottom end penetrating through the drying tank is further installed on the inner side of the drying tank, moisture in medicine residues is separated out through the metal centrifugal cage, then the medicine residues are repeatedly and circularly conveyed on the inner side of the cylinder, and the drying efficiency of the medicine residues can be effectively improved through heating of the electric heating coil.

The present invention relates to a system and method for the drying treatment of spent grains. The method comprises: mechanically press-filtering raw spent grains provided in batches by means of solid-liquid separation; dehydrating the spent grains by means of removing moisture and gases that affect the clumping rate thereof; and screening the heated and dehydrated high-fiber spent grains and organic-matter-enriched spent grains by means of differential separation and on the basis of protein content, so as to obtain an oversize product for pyrolysis and an undersize product for feed. The system contains a mechanical module for mechanical pressure filtration and dehydration, a first detection module for detecting relevant parameters characterizing the clumping rate, a drying module for heating the spent grains, and a screening module for screening the spent grains.

A substrate processing method of the invention includes: a first step of introducing a processing fluid in a gas phase into a chamber housing a substrate; a second step of changing the processing fluid in the chamber from the gas phase to a supercritical state without intervention of a liquid phase; a third step of changing the processing fluid in the chamber from the supercritical state to a liquid phase; a fourth step of changing the processing fluid in the chamber from the liquid phase to a supercritical state; and a fifth step of changing the processing fluid in the chamber from the supercritical state to a gas phase without intervention of a liquid phase and discharging the processing fluid from the chamber.

The invention discloses energy-saving drying equipment and a drying method, and belongs to the field of food drying, the equipment comprises a device body, a rotary heating mechanism, a vacuumizing mechanism and a cooperative control system, and the cooperative control system comprises a food state analysis module for outputting food state coefficients based on food thickness, humidity and fat content; the motor state analysis module is used for evaluating a motor fault risk through temperature, voltage and current fluctuation; the motor load pressure analysis module is used for calculating an overload coefficient by combining the vibration amplitude, the output torque and the power; the temperature-rotating speed collaboration analysis module is used for dynamically analyzing the matching degree of the drying temperature, the rotating speed of the barrel and the food state and generating a temperature-rotating speed collaboration coefficient; and the vacuum degree optimization module is used for outputting the target vacuum degree according to the temperature-rotating speed collaboration coefficient and the current vacuum degree. The temperature, the rotating speed and the vacuum degree can be dynamically optimized according to food characteristics, the drying uniformity is improved, and meanwhile the motor overload risk and energy consumption are reduced.

The utility model relates to the field of chemical engineering, in particular to an ammonium sulfate drying device, which comprises an ammonium sulfate crystallizer, a centrifugal machine, a grate screen, an ammonium sulfate solution storage tank, a dryer and an ammonium sulfate finished product bin, a discharge port of the ammonium sulfate crystallizer is connected with a feed port of the grate screen through a pipeline, and the tail end of an upper screen surface of the grate screen is connected with a feed port of the centrifugal machine through a pipeline. The lower portion of the screen surface of the grate screen is connected with the ammonium sulfate solution storage tank through a pipeline, the ammonium sulfate solution storage tank pumps a solution into the ammonium sulfate crystallizer through a water pump, a discharging port of the centrifugal machine is connected with a feeding port of the dryer through a pipeline, and a discharging port of the dryer is connected with a feeding port of the finished product bin through a pipeline. The ammonium sulfate drying device disclosed by the utility model has the advantages that the ammonium sulfate drying device adopts a closed structure, so that the phenomena of small particle dust and fly ash of ammonium sulfate are completely eradicated, the loss of ammonium sulfate products is reduced, the phenomenon of large-area corrosion of walls and floor tiles is avoided, and low-carbon drying of ammonium sulfate is realized.

The application discloses a kind of vacuum drying device for phosphor shrimp powder processing, it is related to drying processing related technical field, including drying outer cylinder, the two shaft ends of drying outer cylinder downside are connected with support leg, and drying inner cylinder is rotatably connected in drying outer cylinder, driving motor is arranged in the support leg inside being connected to the outside of drying outer cylinder, multiple gas ring grooves are opened on the outer wall of drying inner cylinder in the application, and multiple jet mesh holes are arranged between gas ring groove and drying inner cylinder, multiple boost air cavities opened on the inner wall of lower end of gas guide ring can be intermittently communicated with the inside of drying inner cylinder by multiple jet mesh holes under the rotation of drying inner cylinder, so that hot air introduced into boost air cavity is pressurized and sprayed in the process of communication and dislocation with jet mesh hole, intermittent high-pressure hot gas injection is formed to phosphor shrimp powder, phosphor shrimp powder can be scattered to prevent caking, and heating can be more uniform by gas stirring, improve drying efficiency and drying effect.

The invention provides a method for preparing a high-compaction-density lithium manganate positive pole piece through stepped temperature control vacuum drying, and belongs to the technical field of preparation of lithium ion battery positive pole materials, the method comprises the following steps: step 1, placing the lithium manganate positive pole piece in an environment of 68-72 DEG C for mild volatilization to form a uniform pore skeleton, step 2, raising the temperature to 95-105 DEG C, and carrying out vacuum drying to obtain a high-compaction-density lithium manganate positive pole piece; and step 3, placing the lithium manganate positive pole piece in a vacuum environment, removing the solvent, inhibiting bubble residues, and completing drying preparation. The compaction density of the pole piece is obviously improved from 1.08 g / cm < 3 > in the traditional process to 2.18 g / cm < 3 >, the pore structure is optimized, the pore distribution is uniform, the lithium ion transmission efficiency is improved, the solvent residue is extremely low, and the NMP residue lt is extremely low; the process is efficient and energy-saving, the drying time is shortened to 9 hours, the energy consumption is reduced by 30%, and the method is suitable for industrial production.

The invention discloses a pretreatment and efficient combustion device for high-water-content biomass fuel. The pretreatment and efficient combustion device comprises a sealed feeding system, a three-stage gradient drying unit, a crushing and homogenizing mechanism and a rotational flow combustion chamber which are connected in sequence. The three-stage gradient drying unit is composed of a low-temperature zone, a medium-temperature zone and a high-temperature zone, material turning plates which are arranged in a staggered mode are arranged in all the temperature zones, a steam coil pipe is arranged in the medium-temperature zone, an inlet of the low-temperature zone is connected with a 150-200 DEG C low-temperature smoke outlet of the combustion chamber, and the high-temperature zone is connected with an independent hot air generator. Through three-stage gradient drying and combustion chamber structure innovation, the drying energy consumption is reduced; due to the multi-stage air distribution and rotational flow design of the combustion chamber, the combustion efficiency of biomass fuel with the water content of 50% is remarkably improved; the flue gas waste heat cascade recycling can reduce the external energy input of the system; the built-in crushing mechanism solves the problem of caking of high-humidity materials; and the modular design adapts to different types of biomass fuels, so that the comprehensive operation cost is reduced.

The invention relates to the technical field of permanent magnet materials, and discloses a magnetic steel nickel coating cleaning and drying process which comprises the following steps: S1, ultrasonic cleaning: taking ultrapure water as a medium, and putting a magnetic steel material plated with a nickel coating into an ultrasonic cleaning machine for cleaning; s2, bubble cleaning: taking ultrapure water as a medium, and putting the magnetic steel material cleaned in the step S1 into a bubble cleaning machine for cleaning; s3, heating and cleaning: taking a coating self-repairing cleaning solution as a medium, putting the magnetic steel material cleaned in the step S2 into a heating and cleaning tank, and heating and cleaning; s4, dehydration: loading the magnetic steel material cleaned in the step S3 into a dehydrator for dehydration; and S5, drying is conducted, specifically, the magnetic steel material dehydrated in the step S4 is put into a drying box to be heated and dried, active ingredients of the coating self-repairing type cleaning solution comprise perfluoropolyether, nano silane and CeO2 nano particles, and a solvent is ultrapure water. The process can realize batch operation, and is short in time consumption and high in safety.

According to the automatic cleaning and air-drying equipment for the steel belt, a feeding area, an ultrasonic alkali washing area, a first electrolytic degreasing area, a second electrolytic degreasing area, a first spray washing area, a first water washing area, an activating area, a second spray washing area, a second water washing area, a third water washing area, a fourth water washing area, an air-drying area, a drying area and a discharging area are sequentially arranged according to the machining sequence. All the stations are electrically connected with a PLC (Programmable Logic Controller); according to the automatic cleaning and air-drying equipment for the steel belt, automatic conveying is adopted for cleaning, additional auxiliary personnel are not needed, the manual operation cost is effectively saved, the equipment is provided with the multiple cleaning stations and the air-drying areas, the steel belt is cleaned in sequence, and through multi-stage and functional cooperative processing, the cleaning efficiency is improved. Full-process cleaning from deep degreasing and oxide layer removal to surface activation and drying protection can be achieved, and finally it is guaranteed that the surface of the steel strip reaches the high-cleanliness state.

The invention relates to the technical field of biotechnology, in particular to a dry-wet mixing method mycoprotein drying process which comprises the steps of preliminary dehydration of wet mycoprotein, crushing of dry protein, mixing of dry protein and wet protein, drying, screening and the like. Dry protein and wet protein are mixed according to a specific proportion, the viscosity of the wet protein is reduced through the dry protein, the caking phenomenon is reduced, the heat conduction efficiency is improved, the granularity uniformity is optimized, and the protein activity is protected. According to the process, the drying efficiency and the product quality are remarkably improved, the protein content of a finished product is stabilized at 78.8%-79.4%, the particle size distribution is concentrated at 80-120 meshes, and the fluctuation between batches does not exceed 0.6%. The method solves the problems of low efficiency, non-uniform particles, activity loss and the like in the traditional process, and is suitable for the fields of feeds, foods and medicines.

This invention discloses a supersonic drying system and dehydration method for particles, relating to the field of particle drying technology. The system includes a collection cylinder fitted outside an accelerating cylinder. By guiding thermosensitive polymer particles into a vortex flow field, they are suspended and spirally ascended under the dynamic balance of centrifugal force and airflow drag. The low-pressure environment generated by the vortex flow field lowers the boiling point of water on the particle surface, and combined with a heat-generating unit, moisture evaporation can be achieved at a relatively low temperature. Subsequently, a high-energy electron beam excited by a plasma generator promotes the migration and evaporation of moisture from the particles, enhancing the drying effect. After dehydration, the particles automatically detach from the vortex flow field due to density changes and enter the collection zone, while the nitrogen flow carries the evaporated water vapor into the discharge zone, achieving automatic separation of the particles and the nitrogen flow. This invention, through its unique structural design and particle motion drying process, is suitable for thermosensitive polymer particles, avoiding thermal degradation and achieving highly efficient particle drying.

The invention relates to a cleaning system (1) for cleaning goods (2). The cleaning system (1) comprises a housing (3) that defines a cleaning chamber (4) for receiving goods (2). At least one device (5) for introducing cleaning fluid is arranged in the cleaning chamber (4). The cleaning system (1) also comprises a carrier (6) for goods to be washed. The carrier (6) for goods to be washed has at least one level (7, 8). Goods (2) can be arranged on the level (7, 8). The cleaning system (1) has at least one shaking device (9), by means of which the carrier (6) for goods to be washed can be moved. The invention also relates to a method for drying goods (2) and to the use of a shaking device (9) for drying goods (2) in a cleaning system (1).

The present application relates to the technical field of cleaning and steaming equipment, in particular to a cleaning and steaming equipment and method for a radix pseudostellariae extract process, which comprises a bubble cleaning tank and a raw material conveying belt, a grading bin is installed in the bubble cleaning tank, the grading bin is open at the top and bottom, and a discharge port is arranged on the left side, a first partition and a second partition are arranged in the grading bin, the second partition and the first partition divide the internal space of the grading bin into a large radix pseudostellariae bin, a medium radix pseudostellariae bin and a small radix pseudostellariae bin from left to right, two grading conveying frames are fixedly connected to the top of the grading bin through supports, the top end of each of the two grading conveying frames is slidingly connected to a U-shaped connecting frame, one end of each of the two U-shaped connecting frames is fixedly connected to the second partition, and the other end of each of the two U-shaped connecting frames is fixedly connected to the first partition, and the purpose of the present application is to solve the problem that the radix pseudostellariae of different sizes mixed together is cleaned by using unified cleaning parameters, and the cleaning is uneven.

A shoes care device according to an embodiment includes an inner cabinet and a module housing. A blowing part, a heating part, and a dehumidifying part are jointly accommodated in a module chamber inside a module housing, and the module housing is detachably coupled to a lower side of the inner cabinet. A shoes care device having a structure in which condensed water generated while passing through the blowing part, the heating part, and / or the dehumidifying part can be prevented from being leaked, and it is advantageous for leakage management, and the module housing and a component accommodated therein are easily managed and replaced.

The invention provides a process method for simultaneously processing ground tea, which relates to the field of tea processing and comprises the following steps of: inputting fresh leaves into a green storage machine for processing; when the humidity of the fresh leaves is greater than the preset humidity, the tea leaves are output from the green storage machine, dehydrated by the dehydrator and then sequentially enter the tea cutting machine and the screening machine for treatment; when the humidity of the fresh leaves is smaller than or equal to the preset humidity, the fresh leaves sequentially enter a tea cutting machine and a screening machine to be treated after being output from the green storage machine; qualified screened tea leaves are treated through a steam fixation machine, a first air-conveying tea scattering machine, a green increasing machine and a second air-conveying tea scattering machine in sequence; tea leaves output by the air-conveying tea scattering machine II are treated by a tea rolling furnace, an air-conveying tea scattering machine III, a stem and leaf separator I, a dry tea air-conveying unit I, a dryer I, a vacuum sorter I and a stem and leaf separator II in sequence; and the tea leaves treated by the stem and leaf separator II are treated by a dry tea air conveying unit II, a dryer II, a vacuum grading machine II and an air conveying machine in sequence and then enter a material collecting bin. Operation modes of the production line can be properly switched according to the state of fresh leaves, and the sunny and rainy day requirement is met.

The invention relates to the technical field of dehydration, and particularly discloses an efficient dehydration method and equipment for bentonite gel. Comprising the following steps: preheating and charging: filling a reaction cavity with bentonite gel of which the water content is greater than 65%, and heating to 60-70 DEG C for 4-6 minutes; ultrasonic treatment and stirring are continuously started under the heating condition, the rotating speed ranges from 110 rpm to 130 rpm, and operation is conducted for 14 min to 16 min under the vacuum condition of 0.015 MPa to 0.025 MPa; intensified evaporation: increasing the vacuum condition in the reaction cavity to 14-16kPa, reducing the stirring rotating speed to 70-90rpm, ultrasonically switching a pulse mode, and continuously operating for 5 minutes to obtain bentonite with the water content of less than 6%; the efficient dehydration method can be used for dehydration of bentonite gel and has the advantages of being high in dehydration efficiency, low in energy consumption and short in time when the bentonite gel is dehydrated.

The disclosure provides an example food dehydrator apparatus for treating food waste and methods for use thereof. The apparatus includes: (a) a receptacle having a bottom support, a top support, and a cylindrical sidewall extending therebetween, where the receptacle has an interior cavity, where the top support has a first opening configured to receive the food waste, and where the bottom support has a first opening to release dehydrated food waste, (b) a load door, (c) a shaft rotatably arranged within the receptacle, (d) a gear motor coupled to the shaft, (e) a first plurality of paddles, (f) a second plurality of paddles, where the first and second plurality of paddles are static, (g) a third plurality of paddles, (h) a fourth plurality of paddles, (i) at least one heat source, and (j) a gate coupled to the bottom support of the receptacle.

The invention discloses a lithium battery self-adaptive baking method which comprises the following steps: S1, after a lithium battery enters a baking oven, the baking oven enters a preheating stage; the preheating stage comprises the following steps: S11, vacuumizing to a first pressure range P1-P2, and keeping for a first time T1; s12, nitrogen is introduced to a second pressure intensity range P3-P4, the second pressure intensity range is kept for second time T2, and drying is conducted at the set temperature; s13, entering a drying stage after circulating for a preset number of times N1, and recording total preheating time T3; s2, after preheating is finished, the oven enters a drying stage; the method specifically comprises the following steps: S21, performing vacuum drying to a third pressure range P5-P6, and recording the time tn and the cumulative number n of each boosting process; s22, nitrogen displacement drying is executed every specified times k, wherein n / k is an integer; and after a cut-off condition is met, drying and cutting off. According to the method, through staged vacuum-nitrogen circulation and dynamic judgment conditions, self-adaptive control over the baking end point is achieved, and the problems that a traditional technology is poor in adaptability, wastes resources and is low in consistency are solved.

The invention relates to the field of medicinal material processing, and particularly discloses a method for optimizing fresh mulberry twig processing parameters by using a response surface method.The method comprises the following steps that the drying degree, the slice thickness and the slice drying temperature before cutting are tested in sequence through a control variable method, and the corresponding mulberroside A content is obtained; then, a response surface horizontal parameter table is designed according to the state of the mulberroside A with the maximum content, a model is fitted through a computer, and optimal processing parameters are reversely deduced through the model. According to the scheme, the influence of the drying degree, the slice thickness and the slice drying temperature of the mulberry twigs before cutting on the quality of the fresh-cut mulberry twig decoction pieces is investigated through a single factor experiment, and the production place primary processing and processing integrated process of the mulberry twigs is optimized by utilizing Box-Behnken design and combining a response surface method.