195results about How to "Improve release efficiency" patented technology

The invention provides a silicon-carbon negative electrode material, a preparation method thereof and a lithium ion battery. The silicon-carbon negative electrode material comprises a porous carbon substrate, nano silicon deposited on the surface and in pores of the porous carbon substrate, and a conductive polymer layer coated on the surface of the nano silicon, the porous carbon matrix is formed by taking zinc gluconate as a carbon source through high-temperature pyrolysis and carbonization. According to the silicon-carbon negative electrode material, the preparation method thereof and the lithium ion battery provided by the invention, the silicon-carbon negative electrode material has high specific surface area, excellent conductivity and stable cycle performance, and shows excellent cycle stability and relatively high reversible capacity in the charge-discharge process when being used for the lithium ion battery; the energy density and the cycle life of the lithium ion battery are effectively improved, a new technical approach is provided for preparation of the silicon negative electrode material of the lithium ion battery, and the preparation method has a wide application prospect.

The invention provides a multi-cavity scramjet engine combustion chamber and a control method thereof. The combustion chamber is simple in structure, capable of adapting to different equivalence ratio ranges and different flight heights, low in resistance, high in combustion performance, low in thermal load of the wall face of the combustion chamber, convenient to maintain and capable of facilitating aircraft-engine integrated design. The combustion chamber comprises an isolation section, a first concave cavity group, a second concave cavity group, a third concave cavity group, an injection module and a combustion chamber expansion section, each concave cavity group is provided with two concave cavities which are oppositely arranged up and down; the isolation section is a first square tube and is connected with the first concave cavity group; the first concave cavity group is connected with the second group of concave cavities through a second square tube; the second group of concave cavities is connected with a third concave cavity group through a third square pipe; a combustion chamber expansion section is connected behind the third concave cavity group; the injection unit comprises a front injection device and a rear injection device; front injection devices are oppositely arranged on the upper wall surface and the lower wall surface of the second square pipe; rear injection devices are oppositely arranged on the upper and lower wall surfaces of the third square pipe.

The utility model discloses a device for directly capturing CO2 in air by using a cooling tower. The device comprises a CO2 capturing module and an electrolytic CO2 release and captured liquid regeneration module, the CO2 capture module comprises a circulating water cooling tower and a heat exchange system, the circulating water cooling tower is used for capturing CO2 in air, and the heat exchange system is a circulating water system served by the circulating water cooling tower; the CO2 electrolysis release and trapping liquid regeneration module comprises a three-chamber electrolytic tank, an acidification chamber accessory assembly, a cathode chamber accessory assembly, an electrolyte input assembly, an external hydrogen inlet and outlet assembly and power supply equipment. The circulating water cooling tower has the following advantages that on the basis that the circulating water cooling function of the cooling tower is achieved, an existing circulating water cooling tower is directly used as an air contactor to achieve direct CO2 air trapping.

A method for improving the release efficiency of bubbles on the surface of an electrode in high-current water electrolysis hydrogen production belongs to the technical field of hydrogen energy production, and the specific scheme comprises the following steps: step 1, applying pulse voltage to a proton exchange membrane electrolytic cell for water electrolysis hydrogen production, the applied pulse current being 0.5-2A, and the applied pulse voltage being 1.4-1.6 V; and 2, conveying the electrolyte deionized water to an anode chamber of the proton exchange membrane electrolytic cell so as to initiate an oxidation reaction to prepare hydrogen. According to the pulse dynamic electrolysis technology, the PEMWE high-current hydrogen production performance can be improved by adjusting the power supply mode of the power source. Besides, the voltage during the pulse interval period is zero, and the total energy consumption actually only comprises the electric energy consumption within the pulse voltage applying time, so that the pulse dynamic electrolysis technology has more advantages from the energy consumption perspective. The pulse dynamic electrolysis technology is expected to promote bubble release and relieve the polarization phenomenon in PEMWE high-current hydrogen production, and the hydrogen production efficiency and the energy utilization rate of the system are improved.

The invention discloses a probiotic fiber non-woven fabric, a preparation method thereof and a probiotic hygienic product, and relates to the technical field of hygienic products. The water-soluble protective agent coated probiotics are added into the first oil agent and / or the second oil agent adopted for oiling, so that the probiotics can be uniformly dispersed on the non-woven fabric, meanwhile, the water-soluble protective agent can avoid failure caused by early release of the probiotics, and due to the fact that the hydrophilicity of the water-soluble protective agent is better, the water-soluble protective agent can be used for oiling the non-woven fabric. Hygienic products such as sanitary towels made of the non-woven fabric are more beneficial to release of probiotics in the use process, and the release efficiency of the probiotics is improved. Meanwhile, the water-soluble protective agent can help the probiotics to be uniformly distributed on the surface of the sanitary towel after being dissolved, so that the effect of enough probiotics can be exerted in the using area of the whole sanitary towel, the situation that the concentration of local probiotics is too high or too low is avoided, and the health problem of the private part of the female is effectively prevented and improved.

The invention discloses an unmanned aerial vehicle aerial multi-image splicing algorithm based on opencv, and the algorithm comprises the following steps: S1, obtaining an aerial image data set, employing an OpenCV CUDA parallel processing technology, and carrying out the preprocessing of the image information of the aerial image data set on a GPU; s2, establishing a memory management mechanism, dynamically calculating a memory size request of the image information by combining and utilizing the parallel computing capability of CUDA in the preprocessing process, pre-defining memory blocks with different sizes in the memory management mechanism, and optimizing memory allocation; s3, grouping the preprocessed image information according to the feature information of the image information, and carrying out parallelization processing on image splicing tasks in each group by using CUDA (Compute Unified Device Architecture); by adopting the OpenCV CUDA parallel processing technology, the aerial image is preprocessed on the GPU, the image processing speed and efficiency are remarkably improved, the memory size request of the image information is dynamically calculated by utilizing the parallel computing capability of the CUDA, and the memory allocation is optimized, so that the overall performance is further improved.

The invention relates to the technical field of biological medicines, in particular to a soluble skin-adhering microneedle for delivering an inactivated enterovirus vaccine as well as a preparation method and application of the soluble skin-adhering microneedle. Sodium hyaluronate is adopted as a film forming material to wrap an enterovirus 71 type (EV71)-coxsackie virus A16 (CA16) type bivalent inactivated vaccine antigen, and a needle body layer of the soluble microneedle is formed; the substrate layer is prepared from a pullulan material, so that the microneedle patch with a stable overall structure is formed. The technology provided by the invention is completed in a clean environment, and the vaccine patch which is qualified through sterility detection is obtained. The soluble microneedle disclosed by the invention has good antigen stability under the condition of 2-8 DEG C. In animal experiments, the microneedle is attached to the skin surface of a mouse for skin-adhering immunization, a strong immune response reaction can be induced, good immunogenicity is shown, and a novel, safe and effective vaccine delivery way is provided for prevention and control of the infantile hand-foot-and-mouth disease.

The invention discloses a process for preparing a liquid fertilizer from high-purity tryptophan fermentation waste liquid, and relates to the technical field of fertilizer preparation, and the process comprises the steps of pretreatment of tryptophan fermentation liquid, concentration of the fermentation waste liquid, component optimization and stabilization treatment. The first filtering operation can remove suspended particles and macromolecular impurities in the waste liquid, the second filtering operation can remove macromolecular substances such as protein aggregates and polysaccharides in the waste liquid, meanwhile, the light transmittance of the waste liquid is improved, and the recovery rate of tryptophan is improved. A low-frequency pulse electromagnetic field is applied into the fermentation tank, so that the permeability of microbial cell membranes can be enhanced, the uptake of microorganisms to substrates and the secretion of metabolites can be promoted, the fermentation efficiency can be improved, and the fermentation time of tryptophan fermentation liquor can be shortened.

The extraction method comprises the following steps: S1, selecting and cleaning leaves, fruits and barks of peach trees, and treating the leaves, the fruits and the barks of the peach trees by using low-temperature plasma in a low-temperature environment of-80 DEG C; s2, freeze-drying the treated raw materials in a vacuum freeze-drying machine, and crushing until the particle size is 1-10 microns; s3, mixing the crushed raw materials with an ionic liquid-supercritical carbon dioxide mixed solvent according to a volume ratio of 80: 20, wherein the ionic liquid-supercritical carbon dioxide mixed solvent is prepared according to a solid-to-liquid ratio of 1: 25, and extracting by a high-frequency pulsed electric field; s4, carrying out multi-stage nano-filtration through a micro-fluidic chip; s5, performing multi-stage concentration in an efficient vacuum centrifugal concentrator; s6, separating and purifying through a bionic nanofiber membrane; s7, carrying out molecular structure identification and quantitative analysis by combining high-resolution ultra-high performance liquid chromatography with a high-precision mass spectrometry technology; and S8, evaluating the anti-wrinkle effect through the intelligent bionic skin model in combination with a photoacoustic imaging technology. According to the method, the extraction efficiency is improved, and the stability and purity of the active ingredients are ensured.

The invention relates to a memory allocation method for an embedded real-time operating system, which is used for separating the memory space of each CPU (central processing unit) core of the embedded real-time operating system, and respectively mapping the space allocated to each core in MMU (memory management unit) mapping, and comprises the following steps of: calculating the address space sizes of a reserved area, a code segment, a data segment and a BSS (base station server) segment of each core; setting a core heap address size of each core; calculating a memory address space required by a running environment of each core, and realizing static distribution in a compiling and linking process; managing a BSS segment address space by adopting a pool allocator algorithm, and forming a memory pool for a core to use by adopting a TLSF distributor for a core heap address space; managing a user heap address space by adopting a partner algorithm; the problems of memory waste of an embedded system and poor flexibility of a whole embedded real-time operating system are solved, multiple memory allocation algorithms are comprehensively adopted, the memory allocation performance is improved, and the real-time performance of the system is improved.

The invention relates to a memory optimization method and device for a network application firewall. The method comprises the following steps: establishing a session corresponding to a network request, and selecting a target memory pool from a memory pool linked list of a network application firewall instance according to a memory application request of the session in a process of carrying out risk detection on the network request; under the condition that the memory application space carried by the memory application request is smaller than or equal to the maximum memory block space of the target memory pool, selecting a target memory block from the target memory pool, and allocating the target memory block to the session; when a memory release request of the session is obtained and a memory release space carried by the memory release request is smaller than or equal to the maximum memory block space of the target memory pool, putting the target memory block back to the target memory pool; and when the session is finished, putting the target memory pool back into the memory pool linked list. By adopting the method, the memory management efficiency in the WAF request processing process can be improved, so that memory fragments in a system are reduced, and the performance loss of memory management is reduced.

The invention discloses a solid heat accumulator capable of being transported by a container and a tower type installation method. The tower type installation method comprises the steps that solid heat accumulation units are built, detected and packaged in a factory workshop according to standard modules; the solid heat storage unit module adopts a standard container as a containing box body, the solid heat storage unit module is loaded into the container through hoisting equipment, and the solid heat storage unit module is transported to an equipment installation site through traffic transportation modes such as land transportation and sea transportation; the solid heat storage unit modules are transported to a container of an engineering site, the solid heat storage unit modules are integrally moved out of the container, and N sets of solid heat storage unit modules are placed on the first layer, N-1 sets of solid heat storage unit modules are placed on the second layer, and N-2 sets of solid heat storage unit modules are placed on the third layer in a tower type integral stacking mode in a hoisting mode and the like. And a solid heat storage unit module bolster is placed below each group of solid heat storage unit modules in advance for fixing, so that the solid heat storage bodies are kept stable in structure.

The invention discloses a soil-improving, water-retaining and fertility-increasing coating material as well as a preparation method and application thereof, aiming at the obstacle attributes that sandy soil in a desertification region is poor in water-retaining and fertilizer-retaining capacity and loose in structure, hydrochloric acid acidified nano clay and a citrus peel extract are self-assembled to obtain a coating liquid, and then ionic crosslinking is performed to obtain an excellent fertilizer. The gain effect of the coating material on the growth promoting effect of plants in the desertification region is comprehensively evaluated through tests such as texture, controlled release, water retention and potting experiments; the potential influence of the coating material on the human body and the environment is comprehensively judged through a cytotoxicity test, life cycle evaluation and a soil biodegradation experiment. The novel citrus peel extract-nano clay coating material prepared by the method provided by the invention overcomes the application limitation of traditional coated fertilizers, and can effectively reduce the transportation loss of urea fertilizers, improve the release efficiency of urea, increase the water-retaining property and structural stability of soil and promote the growth of plants in regions with severe environments such as desertification.

The invention relates to the technical field of catalysts, in particular to attapulgite loaded sulfurized nano zero-valent iron as well as a preparation method and application thereof. According to the specific technical scheme, the preparation method of the attapulgite-loaded vulcanized nanoscale zero-valent iron comprises the following steps: adding modified ATP into FeSO4. 7H2O, stirring and mixing in a nitrogen atmosphere, adding anhydrous glycerol, stirring, dropwise adding a mixed solution of Na2S and NaBH4, and after the reaction is completed, centrifuging, washing and drying to obtain the S-nZVI (at) ATP composite material. According to the invention, the problem that nZVI is easy to agglomerate and oxidize in the prior art is solved, and the activation capability of the nZVI on persulfate can be greatly improved.

The invention discloses an in-vitro release test method and a content analysis method of a liposome drug, and the method comprises the following steps: mixing a buffer agent and a surfactant in a dissolution cup to obtain a mixed solution, and adding a regulator into the mixed solution to obtain a dissolution medium; adding liposome powder into water for dissolving, and then adding the dissolution medium for dilution to obtain a sample solution; putting the dissolution cup into a dissolution instrument, heating at a preset temperature, and connecting a dialysis tube to the dissolution instrument through an adapter; adding the sample solution into the dialysis tube, mixing the sample solution with the dissolution medium, collecting a drug sample at a specific time point, and analyzing the drug sample to obtain the release rate of the liposome drug. According to the method, the release process of the liposome drug in a living body can be more accurately simulated, and the release rate of the in-vitro release method of the liposome drug is greatly improved.

The utility model relates to an electric vehicle motor rotating shaft which comprises a rotating shaft body, an oil storage bin is arranged in the rotating shaft body, a rotor connecting shaft is arranged on one side of a first flange, and a first connecting shaft fixedly provided with a bearing is arranged on the side, away from the first flange, of the rotor connecting shaft; an extension shaft is arranged on the other side of the first flange, a second connecting shaft fixedly provided with a bearing is arranged on the side, away from the first flange, of the extension shaft, a plurality of oil storage grooves are evenly distributed in the circumference of the side, close to the first flange, of the circumferential surface of the rotor connecting shaft, and first oil outlet holes are formed in the oil storage grooves and communicated with an oil way of the oil storage bin; a plurality of second oil outlet holes are evenly distributed in the circumference of the side, close to the first connecting shaft, of the circumferential surface of the rotor connecting shaft, and the second oil outlet holes communicate with the oil storage bin through the oil way.

The invention relates to the technical field of sewage treatment, and discloses a sewage treatment system and method for photocatalytic coupling biological treatment.The sewage treatment system for photocatalytic coupling biological treatment.The sewage treatment system for photocatalytic coupling biological treatment.The sewage treatment system for photocatalytic coupling biological treatmentcomprises a pretreatment unit, a photocatalytic unit, an electrochemical biological unit, a post-treatment unit and an intelligent control unit, the pretreatment unit comprises a microwave-ozone coupling reactor and a magnetic adsorption column; the photocatalysis unit comprises a dual-band reaction tower; the electrochemical biological unit comprises a three-dimensional electrode biological membrane assembly and a FeS2 filler layer, the anode of the three-dimensional electrode biological membrane assembly is boron-doped diamond, and the cathode of the three-dimensional electrode biological membrane assembly is a carbon felt of anaerobic ammonium oxidation bacteria. Through multi-stage cooperative treatment, heavy metal ions and organic matters in the sewage are effectively removed, the removal rate of the heavy metal Cr (VI) is greater than 99.9%, the removal rate of the refractory organic matter benzene is greater than 99.9%, and the method has multi-scene applicability and efficient treatment capacity.

The invention belongs to the technical field of isotope recovery and separation, and discloses a method for recovering high-abundance C13 carbon dioxide from C13 urea based on acidic constant-temperature hydrolysis. According to the method, the hydrolysis rate of the C13 urea is maintained by selecting proper dilute sulfuric acid concentration, sulfate radicals and urea are prevented from forming an adduct by controlling the dilute sulfuric acid concentration, the release efficiency of the 13CO2 is increased, the reaction rate is controlled, and side reaction is avoided. The invention further provides a set of reaction device for recycling 13CO2 through acidic constant-temperature hydrolysis of C13 urea under reduced pressure, the gas-liquid phase contact area and residence time are remarkably increased by arranging the rectifying column, visual water removal and low temperature are realized through the water removal column and the condenser pipe, the problems of external CO2 pollution, high impurity air content and relatively high water content are solved, and the method is suitable for industrial production. And high abundance recovery of the 13CO2 is ensured.

The invention relates to moxa-moxibustion containing effective substances of fresh ginger and an extraction process of the moxa-moxibustion. The moxibustion disclosed by the invention consists of ginger slices, a rubber ring, a transparent base, a paper tube, a metal sheet and a moxa cake, wherein the ginger slices are prepared by compounding supercritical extraction ginger effective substances and double-layer non-woven fabrics. The extraction process of the effective substances of the fresh ginger comprises the steps of raw material preparation, extraction and separation of ginger essential oil, treatment of fresh ginger residues, extraction of gingerol, microwave-ultrasonic assisted extraction, concentration extraction, supercritical CO2 further purification and the like. The invention further relates to preparation and application of the eutectic reagent. The ginger slice compound disclosed by the invention is prepared through the operations of effective substance treatment, coating, compound molding, drying and curing, cutting and packaging and the like. The advanced extraction technology and the material compounding technology are applied to the moxibustion product, a new thought and method are provided for innovation of the moxibustion technology, the limitation of traditional ginger-separated moxibustion on materials and technologies is broken through, and the components, the structure and the performance of the moxibustion product are remarkably improved.

The invention belongs to the technical field of preparation of traditional Chinese medicine decoction pieces, and particularly relates to a preparation method of natural musk decoction pieces and a product. According to the living body musk deer incense taking method, a single musk deer can continuously produce incense for 10 years (2-12 years old), 15-20 g of incense is produced every year, compared with musk deer killing and incense taking, the resource utilization rate is increased by 10 times or above, the poaching pressure of the wild musk deer is directly reduced, and species protection is assisted; the retention rate of musk ketone can be greater than or equal to 90% through vacuum freeze drying, and the release efficiency of medicinal components is further improved through low-temperature superfine grinding; furthermore, through a modern detection technology, it is ensured that the muscone content reaches the standard, no harmful residues exist, and the medication risk caused by experience identification errors is avoided; furthermore, the raw material farm, the production parameters and the inspection report can be inquired in real time through the identification of one object and one code, so that the authenticity of the product is guaranteed. The process disclosed by the invention can be popularized to production of other valuable and rare traditional Chinese medicine decoction pieces, and the traditional Chinese medicine industry is promoted to develop towards standardization, modernization and sustainability.

The invention discloses a method for improving the heat energy release efficiency of combustible materials, and belongs to the technical field of coal chemical industry. Metal-containing substances such as metal minerals and quartz sand are adopted as combustion improvers to be evenly mixed with combustible materials, the mixture is put into a reactor, combustion reaction is carried out in an oxygen-containing atmosphere, sufficient combustion of the combustible materials is promoted, the combustion performance of the combustible materials can be remarkably improved through metal elements contained in various minerals, and the combustion efficiency of the combustible materials is improved. By means of ball milling, sand milling, disc milling and the like, the dispersion degree of the combustion improver in combustible materials can be remarkably improved by adjusting the grinding parameters such as the grinding rotating speed, the grinding material composition and the grinding time. Tests show that heat released by coal combustion can be increased by 3%, and heat released by solid waste can be increased by 20%. Energy can be further saved, and higher economic value can be obtained.

The invention provides a valve conveying system and an operation method, the valve conveying system comprises a catheter assembly, a driving device and a rope locking assembly, the catheter assembly is connected to the driving device, the rope locking assembly is connected to the near end of the driving device, the valve conveying system is provided with a containing cavity, and the catheter assembly, the driving device and the rope locking assembly penetrate through the containing cavity; when the valve is loaded, a pull rope of the valve penetrates through the containing cavity, the rope locking assembly locks the end of the pull rope, and the driving device can drive the valve to move into the catheter assembly. When the valve is released, the driving device is driven to enable the valve to move out of the containing cavity and to be released at a designated position, and the rope locking assembly unlocks the end of the pull rope. According to the valve conveying system, the functions of loading, delivering, positioning, recycling and the like of the prosthetic valve can be achieved through active driving, the structure is simple, the response speed is high, operation is stable, the control precision is high, and the operation efficiency of an operator is improved.

The utility model provides a multi-tube heat accumulating type biomass steam generator, and belongs to the technical field of steam generators. Comprising a steam generator body, the steam generator body is divided into a hearth and a containing cavity through a partition plate, a heat storage mechanism is placed in the containing cavity, and the heat storage mechanism comprises a heat storage box, a plurality of electric heating pipes, a first fan, a plurality of first communicating pipes, a heat storage cavity and a flange plate; and the first communicating pipe is communicated with the heat storage cavity. Through the arrangement of the plurality of electric heating pipes, the plurality of first communicating pipes, the heat storage cavity and the flange plate, when in use, the heat exchange area is increased, the absorption and release efficiency of heat energy is improved, and the storage and output of heat can be effectively balanced and adjusted, so that the stability of steam supply can be kept when the system load fluctuates, and the energy consumption is reduced. Energy loss is reduced, energy conservation and emission reduction are achieved, the operation cost is reduced, and the current requirement for environmental protection is met.

The utility model relates to a kind of ratchet wheel releasing device with high torque, including base and rotary support, three ratchet teeth, sleeve and ratchet wheel assembly, ratchet tooth rotary disc, releasing telescopic oil cylinder, rotary cantilever and cantilever drive oil cylinder, base and rotary support are on nut, ratchet tooth is installed on ratchet tooth rotary disc, sleeve and ratchet wheel assembly are engaged with ratchet tooth, the front end of releasing telescopic oil cylinder is connected with ratchet tooth rotary disc, the rear end of rotary cantilever is connected with the rear end of releasing telescopic oil cylinder, the upper end of cantilever drive oil cylinder is connected on rotary cantilever, and the bottom end of cantilever drive oil cylinder is fixed on ground. The ratchet wheel releasing device with high torque of the utility model is adopted, by integrating hexagonal sleeve and ratchet wheel on the same shaft, the efficiency of releasing is improved, prestressed pipe pile production can be quickly and effectively released tensioning nut anchored, the time required for releasing process is reduced, can be integrated on automatic equipment, automatic alignment, automatic sleeve nut, automatic releasing, save labor input.

The present invention relates to the technical field of plant crushing, and specifically to a plant crushing device for improving extraction efficiency, comprising an equipment frame, a support platform arranged on the equipment frame, and a lower material bin installed on the support platform; the equipment frame is also provided with a grinding bin; the support platform is also provided with a crushing bin, the crushing bin comprises a feed frame, a crusher frame arranged on the feed frame, and a guide frame installed at the feed end of the feed frame, the crusher frame is passed into the lower material bin, and an upper jaw crusher and a lower jaw crusher are respectively arranged in the crusher frame, the lower jaw crusher is fixedly installed, the upper jaw crusher is movably installed, and a toggle mechanism for driving the upper jaw crusher to move is arranged on the side edge of the feed frame. The present invention makes the cell fluid release more thoroughly during the crushing process, and keeps the cell fluid and cell fiber relatively separated, so that it is convenient for more targeted and selective extraction in the subsequent extraction process.

The application discloses a high-precision flexible printing method on common coated paper. In view of the problems of poor flatness of common coated paper, easy blocking of existing flexible printing, loss of high-light screen dot, screen dot expansion, and unstable mass production quality, the application adopts micro-hole screening and AM / FM mixed zoning screening processing of original documents, selects and matches high-precision sleeves and gulf stream type high-line-number screen rollers, adjusts and controls the screen roller and the printing plate pressure and the printing plate and the coated paper printing pressure through two-stage pressure calibration, matches and optimizes the water-based ink parameters and the segmented printing speed, and is matched with online quality control. The application can effectively inhibit the blocking, retain the high-light small screen dot, improve the overprint precision and the mass production stability, and realize the high-line-number high-precision flexible printing on common coated paper.

According to the corrosion-resistant metal protection liquid and the preparation method and application thereof, a modified cerium-containing compound is deposited on the surface of carbon steel through an electrochemical means, especially allylthiourea and 4-carboxybenzimidazole are used for improving the chemical property of a film layer, and compared with the prior art, the corrosion-resistant metal protection liquid has the advantages that the preparation method is simple, conditions are mild, control is easy, and the corrosion-resistant metal protection liquid is suitable for large-scale production. And the corrosion resistance is excellent.

The utility model belongs to the technical field of material distribution equipment, and discloses a dispensing machine which comprises a bag making unit and a distribution unit, the bag making unit drives film bags into the distribution unit from bottom to top, and the distribution unit is used for transferring the received film bags and sealing the film bags; the bag making unit comprises a forming mechanism, a film drawing mechanism and a transverse sealing mechanism; the forming mechanism is used for keeping the film bag in an opening state; the film drawing mechanism is used for driving the vertically sealed film bag to move from bottom to top in the forming mechanism; the transverse sealing mechanism is located on the upper side of the forming mechanism and used for heat sealing and cutting off the film bag. On the basis of meeting and improving the bag making efficiency, the film bags entering the distribution unit are kept open, and therefore the film bags can be discharged.

The invention discloses a composite phase change material and a preparation method thereof. The composite phase change material comprises the following components in parts by weight: 52-62 parts of an organic phase change material, 60-65 parts of activated carbon powder, 50-70 parts of expanded perlite powder, 17-28 parts of N-pole magnetic powder and 17-28 parts of S-pole magnetic powder, the N-pole magnetic powder and the activated carbon powder are stirred and mixed at a low speed for 60 min or above, and a mixture A is obtained; slowly stirring and mixing the S-pole magnetic powder and expanded perlite powder for more than 60 minutes to obtain a mixture B; heating the organic phase-change material to above the phase-change temperature, adding the mixture A, stirring and dispersing uniformly, cooling to below the phase-change temperature, and grinding to obtain a mixture C; the particle size of the mixture C is smaller than the aperture of the expanded perlite powder; the mixture B and the mixture C are stirred and mixed at a low speed for 60 min or above, and the composite phase change material is obtained; the material has high integrity and cycling stability, meanwhile, the magnetic material can serve as a middle-layer medium to achieve internal and external conduction, and heat energy storage and release efficiency are remarkably improved.