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Cellulose dryerCase introduction: The cellulose dryer is made of hot air tangentially enter the bottom of the dryer, and form a powerful rotating wind field driven by the agitator. Under the strong action of the high-speed rotating stirring paddle, the material is dispersed under the action of impact, friction and shear force, and the massive material is rapidly crushed, fully in contact with the hot air, heated and dried.Cellulose is a macromolecular polysaccharide composed of glucose. Insoluble in water and common organic solvents. It is the main component of plant cell wall. Cellulose is a kind of polysaccharide widely distributed and abundant in nature, accounting for more than 50% of the carbon content in the plant kingdom. The cellulose content of cotton is close to 100%, and it is a natural source of pure cellulose. In general wood, cellulose accounts for 40 to 50%, and 10 to 30% hemicellulose and 20 to 30% lignin.Cellulose is an ancient and abundant natural polymer on the earth, which is inexhaustible and a valuable natural renewable resource for human beings. Cellulose chemistry and industry began more than 160 years ago, and is the main research object during the birth and development of polymer chemistry. The research results of cellulose and its derivatives have made significant contributions to the establishment, development and enrichment of polymer physics and chemistry.Working principle of cellulose dryer:Flash dryer is by the hot air tangentially into the bottom of the dryer, driven by the stirrer to form a strong rotating wind field. The material enters the dryer by the screw feeder, under the strong action of the high-speed rotating stirring paddle, the material is dispersed by impact, friction and shear force, and the block material is quickly crushed, fully in contact with the hot air, heated and dried. The dried material is carried by air into the dust collection system for collection and treatment, and the tail gas with dust content ≤50mg/m3 is discharged by the induced draft fan to complete the whole drying process.Cellulose dryer equipment features:1. High gas velocity in the drying room, short residence time of materials, effectively prevent the material from sticking to the wall and the deterioration of heat-sensitive materials, and can be dried into uniform powder products at one time, eliminating the grinding, screening and other processes.2. The drying chamber is equipped with grading ring and swirl sheet, and the fineness and final moisture of the material can be adjusted. The special air distribution device reduces the resistance of the equipment and effectively improves the drying uniformity of the material.3. The bottom of the dryer is equipped with a special cooling device and air pressure seal to avoid deterioration of the material in the bottom high temperature area.4. It can effectively control the final moisture and fineness, and ensure the moisture content and fineness of the product are uniform through the adjustment of the feeding, hot air temperature and classifier.Flash dryer is a new type of continuous drying equipment which integrates drying, crushing and screening. It is especially suitable for drying filter cake, paste and mud paste. The drying time of the wet material in the drying tower is only tens of seconds, the water evaporates instantly, and the quality of the dried product has a great relationship with the drying temperature, wind speed, air volume, and the crushing speed.Longxin has an innovative design scheme to control the size of finished particles and the final water content by adjusting the wind speed, air volume and crushing speed entering the tangent line of flash drying.Read More

AIBN fluidized bed dryerCase introduction: AIBN vibrating fluidized bed dryer is an improved type of hot air convection dryer. When working, the exciting force provided by the vibration motor or other means makes the AIBN jump forward on the air distribution plate, and at the same time contact with the hot air sent into the bottom of the distribution plate for heat and mass transfer.AIBN for short AIBN. Soluble in methanol, ethanol, ether, acetone, petroleum ether and aniline and other organic solvents. AIBN is an oil-soluble azo initiator, azo initiator reaction is stable, is a first-order reaction, no side reaction, better control, so widely used in the research and production of polymers. For example, vinyl chloride, vinyl acetate, acrylonitrile and other monomer polymerization initiators can also be used as blowing agents for polyvinyl chloride, polyolefin, polyurethane, polyvinyl alcohol, acrylonitrile and butadiene and styrene copolymers, polyisocyanates, polyvinyl acetate, polyamide and polyester. In addition, it can also be used in other organic synthesis.AIBN is used as polymerization initiator of polyvinyl chloride, polyvinyl alcohol, polystyrene, polyacrylonitrile and other monomers. As an initiator for polymerization of vinyl chloride, vinyl acetate, acrylonitrile and other monomers, it is also used as a blowing agent for rubber and plastics, with a dosage of 10% to 20%. This product can also be used as vulcanizing agent, pesticide and intermediate of organic synthesis; Intermediates of organic synthesis; Used as an initiator for high polymer.AIBN vibrating fluidized bed dryer is an improved type of hot air convection dryer. When working, the exciting force provided by the vibration motor or other means makes the AIBN e jump forward on the air distribution plate, and at the same time contact with the hot air sent into the bottom of the distribution plate for heat and mass transfer. The lower box provides a stable air chamber with a certain pressure for the bed. Adjust the induced draft fan, so that the upper part of the bed material in the upper box to maintain a small negative pressure, maintain a good dry environment and prevent dust leakage. The air distribution plate supports the diisobutyronitrile azo and distributes the hot air evenly.The difference with the traditional fluidized bed dryer is that the AIBN transport and fluidization of the ordinary fluidized bed dryer are completely completed by wind (hot air), while the vibrating fluidized bed is mainly completed by vibration force. This can reduce the small fluidization rate of AIBN, especially the particle fluidization near the bottom of the material layer, improve the fluidization quality of the particles on the distribution plate, so that some AIBN that is difficult to fluidize can carry out normal drying operation. According to the experience of the majority of users, Longxin has made bold improvements in the structure of the traditional vibrating fluidized bed equipment, and other simple small adjustments are no longer described. There are mainly the following points:1. the equipment adopts the form of segmented air intake, and designs the pre-drying section, strong drying section and cooling section.2. the equipment adopts the upper and lower bed body quick loading structure, which can easily and quickly clean all parts of the host;3. In the air intake form of the equipment, we have changed the traditional baffle air intake, and adopted the lower air intake to ensure that the bed surface can be uniform and reasonable, to ensure that the material is evenly heated, the product is evenly dried, and the system resistance is small.4. the use of expanded box bed body, reduce the exhaust pipe on the bed body, can be centralized discharge, reduce the cleaning point, and can improve the drying effect.5. according to the drying characteristics of the material, the bed plate of the fluidized bed adopts the tongue bed plate structure, the wind direction is consistent, the pressure drop is small, the material forward speed is uniform, fast, and there is no leakage phenomenon.6. the system adopts the combination of drying and cooling bed structure design, large output, strong adjustability. In addition, in the cooling system, a refrigeration dehumidification device can be used to force cooling and dehumidification of the inlet air to ensure the cooling effect of the material, and to prevent the occurrence of moisture return during the cooling process.ZLG series linear vibrating fluidized bed dryer is a new type of drying (cooling) equipment developed by Longxin on the basis of more than ten years of drying experience, which has been widely used in all walks of life. The vibrating fluidized bed not only has a good drying function, but also can complete the process of material granulation, cooling, spraying a small amount of liquid, screening and conveying according to the process needs. Vibrating fluidized bed dryer is to increase the vibration of the bed layer on the basis of material fluidization, so that the material has a process of throwing and loosening, the two organically combined to achieve the effect of laminar fluidization of the bottom bed, suitable for chemical, pharmaceutical, food, dehydrated vegetables, grain, minerals and other industries of powder, granular materials drying, cooling and other operations.Read More

Bromo chlorine flash dryerCase description: The heated hot air contacts and colliding with the Bromo chlorine wet material added by the spiral feeder, initiating a series of physical changes such as mass heat exchange and separation, which separates Bromo chlorine from the wet content and completes the drying.Bromo chlorine is a specific disinfectant, used for industrial water treatment and mineral spring (hot spring) bath disinfection, indoor and outdoor swimming pool disinfection only 1~2ppm can achieve the effect, can also be used for a variety of water treatment, toilet disinfection deodorization, disinfection bleaching and agriculture for flowers and seeds disinfection, sterilization, aquaculture, fruit preservation and other aspects. It can also be made into a variety of packaging tablets, granules, blocks and powders. Bromo chlorine in water can continuously release active Br- ions and active Cl- ions through dissolution, forming hydrobromic acid and hypochlorous acid. The generated hydrobromic acid and hypochlorous acid have strong oxidation, and can oxidize the biological enzymes in microorganisms to achieve the purpose of sterilization.Bromo chlorine flash dryer process:Bromo chlorine flash dryer uses wind as wet and heat carrier, and fan as power to achieve mass and heat exchange in the drying process, so that the wet part of Bromo chlorine has phase change, and the separation of Bromo chlorine and wet part is achieved, that is, drying. The natural wind is generally used for drying. After the natural wind passes through the air filter, it is heated by the fan into the steam heat exchanger, coal or oil or gas hot blast furnace, and the heated hot air is then distributed into a uniform cyclone with a certain flow rate and flow direction by the hot air distributor of the flash main engine. The cyclone contacts and colliding with the Bromo chlorine wet material added by the spiral feeder, initiating a series of physical changes such as mass heat exchange and separation, which separates Bromo chlorine from the wet content and completes drying. Bromo chlorine flash dryer equipment features:1. a variety of feeding devices for choice, feeding continuous stability, will not produce bridge phenomenon.2. A special cooling device is set at the bottom of the dryer to avoid deterioration of the material in the bottom high temperature area.3. special air pressure sealing device and bearing cooling device, effectively extend the service life of the transmission part.4. the special wind distribution device reduces the resistance of the equipment, while making the wind speed in the tower tend to balance.5. the drying chamber is equipped with a grading ring and a swirl sheet, the fineness of the material and the final moisture can be adjusted and controlled.6. High circumferential gas velocity in the drying room, short residence time of materials, effectively preventing material wall adhesion and deterioration of heat-sensitive materials.Flash dryer is a new type of continuous drying equipment which integrates drying, crushing and screening. It is especially suitable for drying filter cake, paste and mud paste. The drying time of the wet material in the drying tower is only tens of seconds, the water evaporates instantly, and the quality of the dried product has a great relationship with the drying temperature, wind speed, air volume, and the crushing speed. Our company has an innovative design program, by adjusting the flash drying tangent into the wind speed, air volume, crushing speed, control the size of the finished particles and the final water content of the high and low, welcome the demand of new and old users to call to mail consultation details!Read More

Food industry -- sand millLongxin specializes in the production of two-roll machine, three-roll machine, five-roll machine, sand mill, refining machine, mixing tank, stainless steel platform structure, food slurry pipeline transportation and the whole line production EPC project. They are used in the chocolate industry, peanut syrup, wafer, milk powder raw materials, candy, pet food and so on.In the chocolate industry, from single equipment to the entire line of automated production: Cocoa beans are dried after fermentation, roasted after sorting until they are ground into powder, then further ground into powder by refining machine, then transported to two, three or five rollers, pressed and heated, then adjusted by automatic conveyor belt to add cocoa butter for mixing, cooling into blocks, etc., equipment design and installation of the entire production line. The whole production line automation AI+ human-machine interaction and other projects.Read More

Soybean dietary fiber rotary flash dryerBrief introduction of the case :Soybean dietary fiber rotary flash dryer by putting the material into the dryer, under the strong action of high-speed rotating stirring, under the action of impact and friction to disperse, quickly crushed, fully heated, dry, in the separator for gas-solid separation, to obtain the collection and packaging of finished soybean dietary fiber, and the tail gas is treated by the dust removal device, to meet the national environmental protection requirements after empty.Soybean Dietary fiber engineering Description:Dietary fiber is recognized by the medical and nutritional communities as the "seventh nutrient". In foreign countries, soybean dietary fiber has been widely used, the products sell well in the world, and the enterprise benefit is remarkable. In our country, soybean residue, which is rich in soybean dietary fiber, comes from a wide range of sources and is cheap, and its development and utilization will produce good social and economic benefits.Our company based on excellent process technology and rich production experience, through understanding customer needs, manufacturing soy dietary fiber special rotary flash dryer.Soybean dietary fiber production process:Wet soybean residue → adjusted acid (1mol/L hydrogen chloride adjusted pH value of 3 ~ 5) → hot water soaking (80℃ ~ 100℃,2h) → neutralization (1mol/L sodium hydroxide to adjust pH value to neutral) → dehydration and drying (drying at 65℃ ~ 70℃ or air drying to 8% moisture content) → grinding → screening (80 mesh) → soybean residue powder → extrusion (feeding moisture 16.8%, 150℃ screw speed 150r/min) → cooling → grinding → functional activation and ultra-fine grinding.Soybean dietary fiber rotary flash dryer working process:The material enters the dryer, under the strong action of high-speed rotating mixing, under the action of impact and friction, it is dispersed, rapidly crushed, fully heated and dried, and gas-solid separation is carried out in the separator, which can collect and package the finished soybean dietary fiber, and the tail gas is treated by the dust removal device and emptied after meeting the national environmental protection requirements.Soybean dietary fiber rotary flash dryer equipment advantages:1, a variety of feeding device specifications to choose from, feeding continuous stability, no bridge phenomenon.2, the special cooling device effectively avoids the deterioration of soybean dietary fiber in the bottom high temperature area.3, high gas velocity, soybean dietary fiber residence time is short, no sticky wall phenomenon occurs.4, grading ring and swirl sheet can make soybean dietary fiber fineness and final moisture can be adjusted and controlled.Application range of rotary flash dryer:Because it integrates drying, crushing and screening, it is a new type of continuous drying equipment. The rotary flash dryer is popular with organic matter such as sodium oxalate, benzoic acid, inorganic matter such as barium carbonate, copper sulfate, soy protein, wine lees and other food, zinc sulfide, black iron oxide and other dye engineering industries.The drying time is short, only tens of seconds can evaporate the water, our company's technical department has a unique design program, can control the particle size and final water content of the finished product by adjusting the wind speed, air volume, etc.Our company can produce rotary flash dryer according to customer requirements and material characteristics, welcome new and old customers to call to inquire about the specific plan!Read More

Xylose vibrating fluidized bed dryerCase introduction: Xylose wet material relies on vibration force to move forward continuously on the air distribution plate, and at the same time contact with the hot air sent into the bottom of the distribution plate, showing a suspended state and hot air flow contact. The intense turbulence between xylose particles and the thermal medium strengthens the heat and mass transfer process. The dried xylose is discharged from the discharge port, the evaporated water and waste gas are recovered by the cyclone separator and the cloth bag dust collector, and then discharged into the atmosphere.Xylose industry prospects:Xylose is a kind of pentose, which is widely used in food, feed, medicine, chemical industry and other fields. According to the research and analysis of China's xylose industry development and market prospect forecast report released by China Industry Research Network, most of China's xylose enterprises implement the business model of production and sales, and production and sales are basically balanced. In 2018, China's xylose production was nearly 240,000 tons. With the growth of the national economy and people's attention to the nutritional value of food, the demand for food-grade xylitol has increased, and sugar alcohol enterprises are actively preparing new food-grade xylitol production lines to respond to market demand.According to the market demand and xylose characteristics, Longxin has developed and manufactured xylose vibrating fluidized bed dryer with more than ten years of actual drying experience and advanced and mature technology.Xylose vibrating fluidized bed dryer working principle:The xylose wet material moves continuously forward on the air distribution plate by vibration force, and contacts with the hot air sent under the distribution plate at the same time, presenting a suspended state and contact with the hot air flow. The intense turbulence between xylose particles and the thermal medium strengthens the heat and mass transfer process. After drying, the xylose is discharged from the discharge port, and the evaporated water and waste gas are recovered by the cyclone separator and the cloth bag dust collector, and then discharged into the atmosphere. Xylose vibrating fluidized bed dryer equipment features:1. The residence time of xylose in the dryer can be changed by adjusting the vibration parameters. The operation of the piston flow reduces the requirements for the uniformity and regularity of xylose particle size, and it is easy to obtain uniform dry xylose products.2. The refrigeration dehumidification device can be used for forced cooling and dehumidification to ensure the cooling effect and prevent the occurrence of moisture return during the cooling process.3. Due to the absence of intense material return, the damage to xylose particles is small, ensuring the integrity of xylose crystals and surface brightness.Vibrating fluidized bed dryer equipment application:As the star product in our company's many drying equipment, the new vibrating fluidized bed dryer has been improved and has been widely used in chemical, pharmaceutical, food, mineral and other industries. This equipment not only has a strong drying function, but also according to the process needs to complete the material granulation, cooling, spraying a small amount of liquid, screening and conveying processes, unique structural design can also maintain a good drying environment and prevent dust leakage. Large output, strong adjustability.Our company can customize the vibrating fluidized bed dryer according to different material characteristics and customer needs, and the heat source can be selected according to the specific conditions of customers. Welcome to call us for advice, carry material field test and investigation, and discuss the plan in detail!Read More

Lithium iron phosphate project - sand millAt present, the construction of 30,000 tons of lithium iron phosphate expansion project of a customer's production base is in full swing. It is not difficult to find from the construction site that Longxin intelligent bead mill, dryer and other products have been standing among them, preparing for the completion of the project and officially put into production.It is reported that the current infrastructure part of the project has been completed about 60%, is expected to complete the installation and commissioning of the main equipment in August, September will be officially mass production, after the completion of sales of 6.5 billion yuan. The project mainly produces low-temperature and high-rate lithium iron phosphate cathode materials, which are used in pure electric vehicle batteries, plug-in hybrid electric vehicle batteries, start-stop start vehicle batteries, energy storage batteries and other fields. At that time, the six WSP high-efficiency recycling hyperfine bead mills and other products produced by our company will operate efficiently and reliably to help the customer's power in the new energy track.Longxin WSP high-efficiency recycling ultrafine bead mill series is widely used in nanomaterials powder engineering, especially in the new energy battery industry, lithium iron phosphate battery cathode materials, lithium titanate and other materials. The special rotor structure design can achieve the maximum specific grinding energy, improve the grinding efficiency, and the minimum fineness can be less than 50nm.In recent years, Longxin has comprehensively laid out strategic emerging industries such as new energy, 5G materials, micro and nano materials, and environmental protection to achieve industrial upgrading, promote scientific and technological innovation, and inject new impetus into economic and social development and sustainable development.Read More

Ternary composite anode material disc continuous dryerCase introduction: ternary composite anode material disc continuous dryer is a multi-layer disc, rotary rake stirring, vertical continuous drying device, is a conductive drying based contact dryer. The equipment is developed on the basis of the fixed bed conduction dryer and the rake type stirring dryer, which has stronger drying force and better energy saving effect than the traditional disc dryer. Ternary composite cathode material engineering Description:The ratio of nickel, cobalt and manganese (x: y:z) in the precursor products of ternary composite anode materials can be adjusted according to actual needs. Ternary material as a positive battery relative to lithium cobalt acid battery safety is high, but the platform is too low, suitable for power batteries, small batteries. Low cost, high gram capacity (>150mAh/g), working voltage and existing electrolyte matching (4.1V), good safety.Compared with Lithium cobalt oxide, the energy density of ternary needs to be improved, and Japan mentioned the same degree as lithium cobalt oxide, that is, the compaction of Japan's ternary is close to lithium cobalt oxide, and there is a gap in the country. If compacted up, with cost advantages and safety, ternary will replace lithium cobalt oxide.Longxin according to the market demand and material characteristics, continuous improvement and innovation, research and development and manufacture of ternary composite anode material disc continuous dryer.Ternary composite positive material disk continuous dryer equipment overview:The equipment is a multi-layer disc, rotary rake stirring, vertical continuous drying device, belongs to the conduction drying mainly contact dryer. The equipment is developed on the basis of the fixed bed conduction dryer and the rake type stirring dryer, which has stronger drying force and better energy saving effect than the traditional disc dryer.Ternary composite positive material dryer equipment features:1. Easy control, strong applicability, accurate material temperature control, uniform drying, stable quality.2. the operation is simple and easy: the operation of opening and stopping is very simple, and the equipment cleaning and observation are more careful and convenient.3. energy consumption is greatly reduced: high thermal efficiency, low energy consumption; The material handling system requires little power.4. easy installation, small footprint: the whole factory, the whole transportation, only need to lift in place; Due to the drying tray layer arrangement and vertical installation, the drying area is large and the floor area is small.5. good operating environment, recyclable solvent, dust emission meets the requirements. Disk continuous dryer application range:The continuous disc dryer is a kind of efficient conductive continuous drying equipment. Its unique structure and working principle determine that it has the characteristics of high thermal efficiency, low energy consumption, small footprint, simple configuration, convenient operation and control, and good operating environment. Widely used in chemical, pharmaceutical, pesticide, food, feed, agricultural and sideline products processing industry drying operations.Welcome new and old customers to consult details, visit the factory to discuss the plan, work together!Read More

Special closed cycle dryer for silicon carbon anode materialCase introduction: Longxin According to the current preparation process of silicon carbon anode materials: sanding → coating → drying → calcination, in the drying process, the main method of closed cycle spray drying is used to nano the material, improve the transmission speed of electrons and ions to improve the conductivity and stability of the material.Lithium electronic batteries are gradually replacing nickel-metal hydride batteries with high energy, long cycle life and environmental friendliness, becoming a promising energy storage device. Negative electrode material is an important part of lithium-ion battery, which directly affects the energy density, cycle life and safety performance of the battery. Silicon carbon, a high-capacity anode material for batteries, is then produced.In the preparation process of silicon carbon, how to develop lithium ion batteries with higher density, greater charge and discharge performance, higher cycle stability and higher safety is a hot topic of research at present and even in the next few decades.According to the current preparation process of silicon carbon anode materials: sanding → coating → drying → calcination, in the drying process, the closed cycle spray drying method is mainly used to nano the material, improve the transmission speed of electrons and ions to improve the conductivity and stability of the material.Silicon carbon anode material before and after the material experiment:In the process of preparing silicon carbon negative battery materials, vacuum rake dryer is traditionally used for drying and solvent recovery, but the silicon carbon material is estimated to be less dispersed, the drying time is long, the continuous production cannot be produced, and the material handling and turning during production cause pollution to the environment. Based on many years of experience in equipment production and understanding of material technology, Longxin has improved the closed cycle spray dryer as a new process in the drying process of silicon carbon anode material production. It completely solves the problems existing in the traditional process, significantly reduces the production cost, improves the product quality, and also greatly improves the impact on the environment.Silicon carbon anode material features:1. The atomizer used by Longxin is a new type of atomizer developed and produced independently, which completely abandons the atomizer purchased by the vast majority of manufacturers in the market and fully meets the material particle size requirements.2. Realize automated continuous production, and can complete the recovery of organic solvents at the same time, production in a closed environment, reducing the impact on environmental pollution.Long Xin technical engineer, lithium positive and negative electrode materials have more than ten years of work experience, familiar with the product preparation process, can provide guidance and opinions in each link of the process, welcome the majority of lithium manufacturers to visit the factory and test materials, and jointly explore the new development of lithium industry drying.Read More

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