5589 results about "Agricultural Product Processing" patented technology

The invention relates to the technical field of drying equipment, in particular to clothing cloth drying equipment. The clothing cloth drying equipment comprises a box body, a discharging shaft for discharging cloths, a drying module, an ironing module, an air-drying module, a rolling shaft for rolling the cloths and a controller. The top of the left side of the box body is provided with a storinghole for storing the cloths, a damping piece mounted at the bottom of the box body is arranged under the storing hole, and the discharging shaft is vertically mounted on the damping piece. The dryingmodule is used for drying the cloths, the ironing module is used for ironing the cloths, and the air-drying module is used for air-drying the ironed cloths. The rolling shaft is located on the rightside of the air-drying module, a material taking hole for taking out the cloths is formed in the top of the box body over the rolling shaft, the rolling shaft is driven through a rolling motor, and the rolling motor is electrically connected with the controller. The clothing cloth drying equipment is mainly suitable for being used in a clothing manufacturing shop and has the characteristics that the size is small, the weight is small, the price is low, and energy consumption is little.

According to the body drying machine, a plurality of air blowing barrels can blow air outwards through a plurality of air blowing openings respectively, each air blowing barrel comprises a brushless motor, and the brushless motors can provide strong wind power so that the body can be quickly blow-dried. The brushless motor is high in power, and the lithium battery assembly is arranged to supply power to the brushless motor, so that use safety can be guaranteed, and family circuit short circuit caused by overhigh power is avoided. Moreover, under the action of the lifting mechanism, the lifting frame can ascend and descend relative to the fixed frame, so that the lifting frame drives the blowing cylinder to ascend and descend; under the action of the rotating mechanism, the blowing cylinder can swing relative to the lifting frame so as to enlarge the blowing range. In conclusion, the air outlet position of the body dryer can be adjusted up and down, the air outlet range is large, the wind power is strong, the body can be quickly dried, and the air drying effect is good.

A surround hot air slow drying device and a three-stage baking method for pet food processing are provided. The surround hot air slow drying device for pet food processing includes a drying box. A hot air drying unit is provided at an inner bottom of the drying box, a circulating conveying unit is provided inside the drying box, a plurality of drying frames are evenly distributed on the circulating conveying unit, a material turning mechanism is provided inside the drying frames, and a positioning component is provided inside the drying box. The material turning mechanism cooperates with the positioning component to turn the raw materials in the drying frames.

The invention relates to the field of food processing, and discloses a pet food hot air drying processing technique which comprises the following steps: heating raw materials by using microwaves, and exciting and evaporating moisture in the raw materials by radiating the raw materials on a conveying belt through the microwaves; moisture on the surface of the food is removed through hot air drying; microwave heating and hot air drying processes are carried out synchronously, and processing data are regulated and controlled in real time through an intelligent control system. The microwave heating is realized through a frequency-adjustable microwave emitter, and the microwave frequency adjustment range of the frequency-adjustable microwave emitter is 2400 MHz to 2500 MHz. The scheme of combining microwave and hot air drying technologies is adopted, microwave is used for heating internal moisture, a hot air system is matched for removing surface moisture, microwave power and hot air temperature are adjusted in real time, the uniform drying effect is achieved, surface hardening is effectively avoided, it is ensured that moisture inside and outside food is uniformly released, and drying quality and efficiency are improved.

The invention discloses a preparation method of a slot wire for a superconducting wire. The preparation method comprises the following steps: manufacturing a copper bar into a copper flat wire through a drawing process; soaking the copper flat wire in a soldering flux, and then washing and air-drying the copper flat wire to obtain a prefabricated copper flat wire; combining the plurality of prefabricated copper flat wires according to the cross section structure of the superconducting wire; performing induction heating welding on the plurality of combined prefabricated copper flat wires through a welding mold to obtain a copper groove wire; performing water cooling, cleaning and drying on the copper slot wire to obtain a copper slot wire with a clean surface; and screening the copper slot line through a laser diameter measuring instrument and eddy current flaw detection equipment to obtain a copper slot line finished product. The copper slot wire with the groove in the surface is obtained by welding the copper flat wire, integrated forming of the structural slot wire is achieved, the production efficiency is improved, welding and finishing forming are carried out by designing dies of different structures, the surface quality of the copper slot wire is improved, the slot wire of a high-precision complex structure is obtained, the drawing speed is high, and the production cost is low. And large-scale production of the copper slot line is facilitated.

The invention relates to an air conditioner temperature and humidity independent control system and method based on two-stage coil chilled water. On the basis of the existing chip plant temperature and humidity independent control based on a fresh air processing unit, a return air drying and cooling coil and a fan filtering unit, low-temperature chilled water outlet of a water chilling unit firstly passes through a fresh air re-cooling coil; return water obtained after the temperature of the fresh air re-cooling coil pipe rises serves as water supply of the fresh air pre-cooling coil pipe and the return air cooling dry coil pipe, so that two-stage coil pipe chilled water is formed, and the return water of the fresh air pre-cooling coil pipe and the return water of the return air cooling dry coil pipe are mixed and then serve as chilled water return water of the water chilling unit. By increasing the return water temperature of the water chilling unit, the average evaporation temperature of an evaporator of the water chilling unit is increased. A bypass is arranged between an inlet and an outlet of the return air cooling dry coil, and the air temperature in the plant is controlled by adjusting the bypass flow through an electric two-way adjusting valve and a PID controller. Compared with the prior art, the invention has the advantages of high unit energy efficiency ratio, low refrigeration energy consumption, simplified system and the like.

The invention discloses a silicon nitride ceramic based on a Yb2O3-MgSiN2 composite sintering aid and a preparation method of the silicon nitride ceramic, the silicon nitride ceramic comprises 93wt% of a Si3N4 matrix, 1-7wt% of Yb2O3 and the balance of MgSiN2, and the total mass of the Yb2O3 and the MgSiN2 as the composite sintering aid is 7wt%. The preparation method comprises the following steps: mixing the raw materials with absolute ethyl alcohol, then adding grinding balls, pouring the mixture into a polyethylene ball milling tank for ball milling, carrying out forced air drying treatment and grinding and sieving treatment on obtained slurry, and then putting sieved powder into a mold for SPS sintering. The problems that traditional silicon nitride ceramic is too high in sintering temperature, insufficient in grain boundary stability and the like are solved, and performance balance of low-temperature sintering, low oxygen content and high grain boundary stability of the silicon nitride ceramic is achieved under the industrial-grade production condition through the synergistic effect of material component innovation and process optimization; and a key material solution is provided for preparing the silicon nitride ceramic with good performance.

The invention discloses a process for improving anodic oxidation consistency of an anode foil for an aluminum electrolytic capacitor, and relates to the technical field of capacitor manufacturing, and the process comprises the steps of multi-stage washing, etching, feeding, multi-stage formation, intermediate treatment, first post-treatment, roasting, second post-treatment, stability treatment, drying, rolling, inspection and packaging. Wherein the multi-stage formation adopts three-stage oxidation of low-temperature and low-current, medium-temperature and medium-current and low-temperature and high-current, so that an oxidation film forms a base layer, a growth layer and a high-density protection layer which are uniformly overlapped layer by layer, and the consistency and compactness of the oxidation film are synergistically improved through dynamic water washing, air drying and temperature field and fluid field regulation and control technologies; the oxide film is repaired through first post-treatment, the pore size of the oxide film is reduced, and the compactness of the oxide film is improved; and high-temperature roasting is combined, and a second post-treatment step is carried out, so that the oxidation film forms an aluminum oxide crystal structure which is stable, high in hardness and compact in structure, and the water resistance and reliability of the finished anode foil are enhanced.

The invention relates to the technical field of die-casting devices, in particular to a die-casting device and a die-casting method for a high-toughness light-weight aluminum alloy structural member. The upper die, the lower die and the metal tank filled with molten metal are respectively arranged on the die-casting frame; the synchronous transmission mechanism is arranged in the die-casting frame and connected with the upper die, the lower die and the metal tank, and the synchronous transmission mechanism and the horizontal reciprocating conveying mechanism share the same motor for driving; the pretreatment mechanism comprises a heating frame, a release agent spraying frame and an air drying frame. The whole system is driven by one power source, the production cost is effectively reduced, the operation difficulty is reduced, the subsequent maintenance and control work becomes easier, the power source has high universality and easy replaceability due to the adoption of an electric driving mode, and the power source is suitable for large-scale popularization and application. And the maintenance efficiency and the availability of the equipment are greatly improved.

The utility model relates to a car washing machine for engineering. The car washing machine comprises a base, a truss structure arranged on the base, a first cleaning device, a second cleaning device, a flushing device and an air blowing device. The base comprises a pre-wetting section, a washing water shaking section and an air drying section; the pre-wetting section, the washing water shaking section and the air drying section are sequentially arranged in the length direction of the base; the first cleaning device is arranged at the end, connected with the washing water shaking section, of the pre-wetting section. The second cleaning device is arranged on the washing water shaking section; the flushing device is laid along the flushing water shaking section and the air drying section; the air blowing device is arranged on the air drying section. According to the utility model, the pre-wetting section is adopted, high-viscosity minerals attached to the tire are directly soaked and wetted in water, part of the minerals on the wheel are directly dissipated in the soaking groove of the pre-wetting section in the advancing process of the wheel, and the carried-out part is directly dropped from the tire after being washed by the washing section; and the cleaning capability is greatly improved compared with that of a common engineering car washer.

The invention discloses a roll-to-roll cleaning control method and system for a flexible circuit board electronic structural member, and relates to the technical field of electronic manufacturing, and the method comprises the steps: carrying out the partitioning processing of a to-be-cleaned member, and obtaining a thin region and a thick region; the drying cavity is partitioned on the basis of the thin area and the thick area, and a partitioned temperature control method is constructed; a dehumidification drying module is placed, and a hot air drying method is obtained based on a chilled mirror dew-point instrument; the roll-to-roll cleaning control method is used for solving the problems that in an existing roll-to-roll cleaning control method for the flexible circuit board electronic structural part, differential temperature control is not carried out on a thick area and a thin area, and the influence of environment humidity in a drying cavity on the drying effect is not considered; the problems that a thin plate is overheated after being dried, water in a thick plate is not completely evaporated, watermarks which cannot be wiped appear on the surface of the electronic structural part, and then the practicability of the cleaned electronic structural part is affected are solved.

The invention relates to the technical field of cleaning equipment, and particularly discloses a steam cleaning machine. The cleaning machine comprises a cleaning machine body, a steam generation system, a cleaning agent conveying device, a waste water suction device, a hot air device and a control device are arranged in the cleaning machine body, the cleaning machine body is connected with a multifunctional integrated spray head through a multi-channel connector and a multi-channel connecting pipe, and the multifunctional integrated spray head is of a multi-layer hierarchical structure. The steam nozzle, the cleaning agent nozzle and the spherical suction head are sequentially arranged from inside to outside; during use, steam and a cleaning agent cooperatively soften and decompose dirt, the wastewater suction device sucks sewage through a spherical suction head of the spray head, the hot air device blows out hot air for drying, and all the systems are controlled by the control device. The cleaning device integrates the functions of steam cleaning, cleaning agent assisting, waste water sucking and hot air drying, achieves closed-loop cleaning, is convenient to operate and high in efficiency, and meets the cleaning requirements of floors, furniture, tabletops, household appliance gaps and the like in families, hotels and other scenes.

The utility model discloses an acid-proof ceramic tile intelligent continuous drying device which comprises a drying bin and a discharging conveyor, and a first conveyor, a second conveyor and a third conveyor are installed in the drying bin. The acid-resistant tile blank drying device has the beneficial effects that the lifting table and the weighing sensor are arranged, in the hot air drying process, the weight of the acid-resistant tile blank is continuously reduced, when the acid-resistant tile blank moves to the position above the lifting table, the electric push rod extends and pushes the acid-resistant tile blank to move upwards, and then the first electric cylinder, the second electric cylinder, the third electric cylinder and the fourth electric cylinder are shortened; and when the weight reaches a set value, the first electric cylinder and the second electric cylinder extend, so that the acid-resistant ceramic tile blanks incline towards the discharging conveyor, the acid-resistant ceramic tile blanks slide along the balls to penetrate through the cloth curtain to reach the top face of the discharging conveyor and move out of the drying bin, and automatic drying detection and discharging of the acid-resistant ceramic tile blanks are completed. The trouble of manual detection is saved, and the use convenience is improved.

The invention discloses a wafer self-air-drying clamping jaw and a clamping mechanism, and relates to the technical field of semiconductor manufacturing equipment, the clamping jaw comprises a clamping structure, the clamping structure is provided with a clamping groove, and the clamping groove comprises a first side wall and a second side wall which are oppositely arranged; the clamping groove only abuts against the edge of the wafer to complete clamping of the wafer, and in the clamping state, a first gap is formed between the first side wall and the surface, close to the first side wall, of the wafer; and / or a second gap is formed between the second side wall and the surface, close to the second side wall, of the wafer. According to the invention, the clamping groove is only abutted against the edge of the wafer, and the clamping position does not relate to the wafer process surface, so that the retention of medicament liquid drops in the clamping area during spin-drying is avoided. Meanwhile, in the high-speed rotating and spin-drying process of the wafer, when air flow enters the first gap and / or the second gap, accelerated air flow can be formed, chemicals on the wafer and the clamping groove can be rapidly taken away, residual accumulated liquid is eliminated, and the morphology quality of a film layer on the periphery of a wafer spin-drying clamping area is improved.

The invention relates to the related technical field of ring main units, in particular to an intelligent ring main unit with an air drying device, which comprises a cabinet body, cabinet doors are rotatably mounted on two sides of the front end of the cabinet body, a wiring groove is formed in the outer wall of one side of the cabinet body and close to the lower part, and a wiring seat is fixedly clamped on the inner side of the wiring groove. The inner side of the wire holder is provided with a separator, the interior of the separator is provided with an ash removal assembly, and the inner side of the rear end of the cabinet body is provided with a dehumidification assembly, so that equipment can be protected from being damaged by moisture, dust at the wiring position can be treated, and the reliability and stability of the ring main unit are improved.

The utility model relates to the technical field of strip steel rolling, in particular to galvanized strip steel production rolling equipment. According to the technical scheme, the device comprises an air outlet pipe, a fixing frame, rollers and an air cooler, the rollers are symmetrically and rotationally installed in the positions, close to the upper surface and the lower surface, of the interior of the fixing frame, cooling cavities are formed in the two rollers, and the two ends of each roller are fixedly connected with a rotary joint A and a rotary joint B correspondingly; connecting pipes A are fixedly connected to the outer sides of the two rotating joints A, the tail ends of the two connecting pipes A are fixedly connected to the outer surface of an air outlet pipe, and an air inlet pipe is fixedly connected to the tail end of the air cooler output pipe. In the hot rolling process of the galvanized strip steel, the temperature of the roller is reduced, the service life of the roller is prolonged, heat of the roller is converted into hot air, production raw materials needing to be heated can be preheated, meanwhile, the hot air drying device can be used for drying the galvanized strip steel after follow-up cleaning operation, and energy consumption is saved.

The invention discloses a high-valued graded utilization method of marine shells, and belongs to the technical field of comprehensive utilization of biological resources and preparation of functional materials. The method comprises the following steps: cleaning, air-drying and superfine grinding marine shell wastes such as abalone shells, and extracting water-soluble organic components in the marine shell wastes by adopting mild water extraction, so that the obtained extract is rich in protein, polysaccharide or small molecule peptide, has good biological activity, and can be used for preparing functional materials such as biomimetic mineralization, tissue repair and the like; extracted shell powder residues are subjected to heat treatment or chemical activation treatment and then compounded with natural polymer materials such as chitosan and sodium alginate, and the composite adsorbent which is loose in structure and large in specific surface area is prepared and can be used for removing dye, heavy metal, antibiotics and other water pollutants. According to the invention, separate utilization of organic components and inorganic framework materials in the marine shells is realized, and the method has the characteristics of environmental protection, efficient resource conversion and multifunctional application, and has a good industrial popularization prospect.

The invention discloses an intelligent soil classification automation system and method. Comprising a soil sample pretreatment module used for air drying, stirring and weighing treatment; the soil sample particle size grading screening module is used for carrying out step-by-step screening treatment to obtain a first-stage particle distribution result; the liquid-plastic limit automatic measurement module is used for performing measurement by using a conometer method to obtain a measurement result of the conometer method; the burning measurement module is used for carrying out burning treatment to obtain a corresponding burning measurement result; the densimeter measurement module is used for carrying out particle analysis through a densimeter method to obtain a second-stage particle distribution result; and the control analysis module is used for realizing automatic control of the intelligent soil classification automation system and performing data analysis to obtain the soil sample type and the corresponding optimal solidification method. According to the system disclosed by the invention, the whole-process automation and data processing of soil classification testing are realized, and the soil sample type and the corresponding optimal solidification method can be automatically obtained.

The invention discloses an efficient glass fiber plate cleaning and drying process which comprises the following steps: S1, pretreatment: performing appearance inspection on a to-be-cleaned glass fiber plate, and removing unqualified plates of which the surfaces are obviously damaged and cracked; s2, pre-cleaning: putting the glass fiber plate subjected to primary treatment into an ultrasonic cleaning tank, injecting clear water into the cleaning tank, enabling the liquid level of the clear water to completely submerge the glass fiber plate, starting an ultrasonic generator at the same time, and separating dust, loose chippings and other impurities on the surface of the glass fiber plate through the cavitation effect of ultrasonic waves to complete pre-cleaning; and S3, chemical cleaning, wherein after pre-cleaning is completed, the glass fiber plate is fed into a chemical cleaning tank containing alkaline pre-cleaning liquid. According to the technology, multiple cleaning procedures are combined with ultrasonic waves, chemical reagents and nano-particles, vacuum and hot air drying are matched, efficient cleaning and rapid drying of the glass fiber plate are achieved, few impurity residues exist, the water content is low, the surface flatness is good, parameter adaptability is high, energy is saved, environment friendliness is achieved, and the automation degree is high.

The invention relates to the field of waste plastic recycling, and discloses plastic film recycling equipment which is used for cleaning and recycling broken plastic films. Comprising a cleaning pool, an inclined conveying belt is arranged at the tail end of the cleaning pool, water filtering holes are formed in the conveying belt, and an extrusion component is arranged on the conveying belt; and the fished-out fragments are extruded by the extrusion part, so that the drainage speed of the fragments is accelerated, and the subsequent recovery processing step is ensured to be smoothly carried out. A traditional conveying belt drains water only by means of gravity, and water in wet plastic fragments and between layers is difficult to effectively discharge, so that the water yield is large. The intermittent extrusion action is introduced in the operation cycle of the conveying belt, and the'wet cake 'structure formed by the surface tension of a water film of the wet material is destroyed in the squeezing process, so that the moisture is easier to release, the initial moisture content of the material is greatly reduced, the load of subsequent centrifugal dewatering or hot air drying equipment is effectively reduced, and the energy consumption and the operation cost are remarkably reduced.

The dyeing workbench with the auxiliary waste liquid removal mechanism comprises a dyeing placement table, a dyeing feeding and discharging mechanism and the waste liquid removal mechanism, the waste liquid removal mechanism comprises an air drying installation frame, a heating assembly and an air drying fan, an air drying channel is formed in the air drying installation frame, and an air inlet and an air outlet are formed in the air drying installation frame. The air inlet and the air outlet communicate with the two ends of the air drying channel correspondingly, the air drying fan is arranged at the air inlet, a heating placement position is arranged at the front end of the air outlet, and the heating assembly is fixedly arranged in the heating placement position. The dyeing machine waste liquid recovery device can solve the problem that waste liquid residues exist in waste liquid recovery of a dyeing machine in the prior art, by means of the product structure, airflow of the air drying fan forms heat flow through the heating assembly, the residual waste liquid can be effectively air-dried, and by arranging the waste liquid removal mechanism, the waste liquid recovery efficiency is improved. The constant dyeing environment temperature can be effectively guaranteed, the dyeing efficiency is improved, the use experience of personnel is improved, and the competitiveness of products is improved.

The invention relates to the technical field of artificial board preparation, and particularly discloses efficient wood chip hot air drying equipment which comprises a drying cylinder and a hot air source, discs are arranged at the centers of the two end faces of the drying cylinder, a hot air guide pipe connected with the hot air source is arranged in the drying cylinder in a penetrating mode, and a hollow rotating pipe is rotatably arranged on the outer wall of the hot air guide pipe in an attached mode. A plurality of scraping plates are uniformly arranged on the hollow rotating pipe, a blanking port is formed in one end, close to the hollow rotating pipe, of each scraping plate, and a scattering plate for sealing the lower end of the blanking port is rotationally connected to the lower end, close to one end of the hollow rotating pipe, of each blanking port through a pin shaft; according to the efficient hot air drying equipment for the wood chips, the internal structure of a traditional roller drying machine is changed, the wood chips can be dried faster, the drying uniformity of all the wood chips can be improved, the drying effect of all the wood chips is guaranteed, compared with direct introduction of axial hot air, the contact time of the hot air and the wood chips can be prolonged, and the drying efficiency of the wood chips is improved. And heat energy loss in the hot air drying process is reduced.

The utility model discloses equipment for poultry house feces air-drying, and relates to the technical field of feces air-drying, the equipment comprises a rack and a fan, a plurality of conveying layers arranged in the horizontal direction are sequentially arranged in the rack from top to bottom, every two conveying devices which are adjacent up and down are distributed in a left-right cross mode, and the left-right directions of the conveying devices are opposite; a ventilation gap is reserved between every two adjacent layers of outer layer baffles, a conveying belt is arranged outside the driving roller and the driven roller, a plurality of through holes are formed in the conveying belt, the driven roller comprises two coaxial spiral shafts, and a discharging baffle is arranged on the portion, located on the outer side of the driving roller, of the conveying layer. According to the utility model, the force of air cannot be excessively lost in a conveying layer, the excrement can be blown and air-dried in multiple directions, the air-drying uniformity and the air-drying efficiency can be effectively improved, the conveying belt can be prevented from deviating along the axial direction of the driven roller, the normal operation of conveying and air-drying work is ensured, and the labor intensity of workers is reduced. Meanwhile, pollution to equipment caused by splashing of excrement can be effectively prevented.

The invention discloses a method for identifying dracocephalum heterophyllum benth in different drying modes, which comprises the following steps: S1, drying dracocephalum heterophyllum benth, including natural drying in the shade, hot air drying and vacuum freeze drying; s2, feeding the dried sample in a headspace mode; s3, a GC-IMS instrument is used for analysis; and S4, carrying out qualitative and quantitative analysis on the detected volatile components through VOCal software, and constructing a GC-IMS spectrogram and a fingerprint spectrum of the volatile components. Through GC-IMS technology and VOCal software analysis, dracocephalum heterophyllum benth subjected to natural shade drying, hot air drying and vacuum freeze drying treatment can be distinguished precisely with high sensitivity, and a reliable technical means is provided for quality control of medicinal materials.

The utility model discloses an aluminum ingot production and processing casting machine conveying device which comprises a supporting column, a transmission roller is arranged on the supporting column, a metal net belt is arranged on the transmission roller in a transmission mode, a beam is arranged on the supporting column, a recycling box is arranged on one side of the metal net belt, an aluminum ingot limiting device is arranged on the metal net belt, and a conveying belt is arranged on the aluminum ingot limiting device. A spray cooling device is arranged on the cross beam, a water receiving device is arranged on the cross beam and located between the metal net belts, and an air drying device is arranged on the cross beam. The utility model belongs to the technical field of aluminum ingot conveying and processing, and particularly relates to a conveying device of an aluminum ingot production and processing casting machine, which solves the problems that in the prior art, aluminum ingots are easy to slide in the conveying process due to lack of limiting measures for the aluminum ingots when the aluminum ingots are conveyed, and meanwhile, the aluminum ingots are lack of a rapid cooling and heat dissipation function.

The invention provides an intelligent traction type overhead conductor insulation coating device and method, and belongs to the technical field of bare conductor insulation layer construction. The device comprises a protective shell, a material supply system is arranged in the protective shell, and the material supply system communicates with a coating system and is used for coating the surface of a bare conductor with an insulating material; the traction system drives the protective shell to advance along the bare conductor; the integrated cleaning and drying system comprises a suction nozzle used for adsorbing and cleaning sundries on a bare conductor, and further comprises a negative pressure fan mechanism, the suction end of the negative pressure fan mechanism is communicated with a garbage can, and the garbage can is communicated with the suction nozzle; and the air exhaust end of the negative pressure fan mechanism is communicated with an air drying blowing nozzle which is used for drying the insulating material coated on the surface of the bare conductor. According to the design, airflow circulation of the negative pressure fan is fully utilized, cleaning-coating-drying type assembly line work is achieved, and therefore the problems that in a traditional technology, the adhesive force of the insulating material is reduced due to dust, and time is wasted when the insulating material waits for natural air drying are solved.

The invention belongs to the technical field of sandy soil reinforcement, and relates to a sandy soil reinforcement method combining modified chitosan film coating and cementation with biomimetic mineralization and application, the sandy soil reinforcement method comprises the following steps: S1, chitosan is subjected to swelling, alkalization, carboxymethylation and refining treatment to obtain modified chitosan; s2, respectively preparing a calcium chloride solution and a sodium carbonate solution with the same concentration; a calcium chloride solution is a cementing solution A; adding modified chitosan into a sodium carbonate solution, and uniformly stirring to form a cementing solution B; s3, the cementing liquid A is sprayed to the sandy soil, then the cementing liquid B is sprayed, and primary cementing is completed; carrying out circulating cementing for 5-20 times according to the spraying mode; and then air drying is conducted to complete sandy soil reinforcement. According to the invention, the agglomeration among calcium carbonate particles is enhanced by utilizing the cementing, film covering, mineralized crystal form adjusting and filling coupling effects of the modified chitosan, so that the calcium carbonate particles form effective cementing connection among sand particles, thereby improving the mechanical properties of the sand.

The utility model discloses a refrigeration type air dryer, which belongs to the technical field of air drying devices and comprises a cooling cylinder, an air inlet is arranged on the right lower side of the outer end of the cooling cylinder, and an air outlet pipe is fixedly mounted at the upper end of the cooling cylinder. A temperature returning system is mounted in the cooling cylinder; the temperature returning system comprises a baffle ring and a temperature returning heating pipe; an evaporation system is further installed in the cooling barrel and arranged in the temperature returning system. By means of the mode, gas communication of the gas flowing area and the pretreatment heating area is effectively isolated; and an inlet of the evaporation system is formed in a gas flowing area, so that the evaporated and cooled gas is heated, and the air drying effect of the device is further enhanced.

The rotor-free cyclone dewatering and drying equipment comprises a dewatering and air-drying module and a centrifugal fan, the dewatering and air-drying module comprises a dewatering outer pipe, a central air pipe and an air guide screw rod, the central air pipe is concentrically arranged on the inner side of the dewatering outer pipe, and a dewatering working channel is formed between the inner circumference of the dewatering outer pipe and the outer circumference of the central air pipe; the air guide screw rod is arranged in the central air pipe, air outlet holes are annularly and densely distributed in the periphery of the central air pipe, water filtering holes are annularly and densely distributed in the periphery of the dewatering outer pipe, and high-pressure air in the central air pipe is forced by the air guide screw rod to rotate and then is blown into the dewatering working channel from the air outlet holes; and the particles are driven by rotating high-pressure air to rotate at a high speed towards the particle output port to impact the water filtering holes, so that the dewatering effect is achieved. The particles are not in direct contact with a structure with sharp edges during air drying and dehydration, so that the influence on the surface of a product is reduced, and the generation of powder is reduced due to no high-speed impact.

The invention provides a food cooking method, a cooking drawer and a refrigerator. The food cooking method comprises the steps that the initial weight of food materials to be cooked is obtained, an electric air door is controlled to be opened, and cold air is conveyed to the cooking drawer so that the temperature in the cooking drawer can be reduced to a first temperature interval; controlling the variable-frequency fan to operate at a first rotating speed; obtaining the first weight of the to-be-cooked food material; according to the weight and the moisture evaporation rate of the to-be-ripened food materials, the temperature in the ripening drawer and the air speed of the frequency conversion fan are controlled, the air drying characteristic parameters are selected to adjust the cooling capacity on the basis of moisture evaporation and weight changes in the food material ripening process, appropriate air drying logics are matched for different stages, humidity does not need to be controlled, and the energy consumption is reduced. And the cooked food not only generates cheese fragrance, but also keeps the tenderness of meat.