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Enoyl morpholine (fungicide powder) dryerCase introduction: The wet material of nicomorphine is continuously added to the drying disc of the first layer of the drying machine, and the rake arm with the rake blade is rotated to make the rake blade continuously turn over, and the water is steamed out after contact with the heating medium. The dried material can be collected and packaged directly.It is characterized by destroying the formation of cell wall membrane and has effects on all stages of oomycetes life history. It is widely used in the prevention and treatment of diseases caused by oomycetes subphyla such as vegetable downy mildew, blight, seedling cataplasms and tobacco black shin disease, and has end sorbent activity. On the premise of not considering the resistance of pathogenic fungi, the efficacy of more widely used metalaxyl, fenuronium, ethylphosphoaluminum, oxazolone and so on are higher. The enyl morpholine fungicide alone has a relatively high risk of resistance, so it is often used in combination with protective fungicides such as mancozeb to delay the development of resistance.Tanoy morpholine fungicide pan dryer equipment principle:The wet material self-feeder is continuously added to the drying disc of the first layer of the dryer, and the rake arm with the rake blade is rotated to make the rake blade continuously turn over the material. The material flows through the surface of the drying tray along the exponential helix, and the material on the small drying tray is transferred to the outer edge, and on the outer edge falls to the outer edge of the large drying tray below, where the material moves inward and falls through the middle blanking port into the next layer of small drying tray. The size of the drying tray is arranged alternately up and down, so that the material can flow continuously through the entire dryer. The heating medium in the form of saturated steam, hot water, heat conduction oil and high temperature molten salt is passed into the hollow drying tray. The heating medium enters from one end of the drying tray and is exported from the other end. The dried material falls to the aggregate tray from the drying tray of the second layer, and is then transferred to the discharge port by the rake leaf.Enyl morpholine fungicide pan dryer equipment features:(1) Easy regulation and control1. The drying process can be optimized by adjusting the thickness of the material layer, the spindle speed, the number of rake arms, the type and size of rake blades.2. Each layer of drying disc can be separately passed into the cold and hot medium to cool or heat the material, accurately and easily control the temperature of the material.3. Accurately adjust the residence time of the material.4. The material flow is single, no back mixing phenomenon, uniform drying, no need to mix.(2) Easy to operate1. The driving and parking operation of the dryer is very simple.2. After the feed is stopped, the transfer material dirt rake blade can quickly empty the material in the dryer.3. Through the special large-size inspection door mirror, the equipment can be carefully cleaned and observed.(3) Low energy consumption1. The material layer is very thin, the spindle speed is low, the material transfer system requires little power and less power consumption.2. Drying by conduction heat, high thermal efficiency and low energy consumption.(4) Environmental protection1. Atmospheric pressure type: the airflow speed in the equipment is low, and the humidity in the equipment is low, and the dust is difficult to float to the top of the equipment, so the exhaust gas discharged from the top wet outlet almost does not contain dust.2. Closed type: equipped with solvent recovery device, can easily recover the organic solvent in the wet gas. Solvent recovery device is simple, high recovery rate, for flammable, explosive, toxic and easily oxidized materials, the protective gas can be used as a wet gas for closed cycle, so that it is safe to operate. Especially suitable for the drying of flammable, explosive and toxic materials.3. Vacuum type: disk dryer operated under vacuum, especially suitable for drying heat-sensitive materials.(5) Easy installationThe dryer is delivered as a whole, transported as a whole, just need to be hoisted into place, and installation and positioning is very easy.Due to the drying tray layer arrangement, vertical installation, even if the drying area is large, the floor area is small.Disc continuous dryer is an efficient conductive continuous drying equipment, its unique structure and working principle determines that it has the characteristics of high thermal efficiency, low energy consumption, small footprint, simple configuration, convenient operation and control, good operating environment and so on. It is not necessary to equip the cyclone dust collector that must be configured for spray drying, and the hot air is not used as the heating medium, so the product loss caused by the bad separation of hot air and dust with the tail gas entrainment will not occur. The new type continuous disc dryer is widely used in chemical industry, medicine, pesticide, food, feed, agricultural and sideline products processing and other drying operations.By adding fin heater, solvent recovery condenser, bag dust collector, pre-dryer, induced draft fan and other auxiliary machines, can improve its drying capacity, dry paste and heat sensitive materials, can easily recover solvent, and can carry out heating, cooling, calcination, sublimation, pyrolysis and reaction operations.Read More

Rubber auxiliary disc continuous dryerCase introduction: Rubber auxiliary disc continuous dryer is based on the intermittent stirring conduction dryer, integrated a series of advanced technologies, through continuous improvement and development and manufacturing of a multi-layer disc, rake stirring, vertical continuous drying equipment, heating in the way of heat conduction.Rubber auxiliary project description:Since 2006, the world's rubber production and consumption has steadily developed year by year, especially China's rubber industry after more than 90 years of development, has now become the world's rubber industry power, the rapid development of rubber industry makes the domestic market demand for rubber additives strong. According to the semi-annual report of the rubber auxiliaries industry, the total output of rubber auxiliaries in the first half of 2017 was 602,000 tons, including about 208,000 tons of accelerators. At the same time, the environmental pressure under the industry can be described as "unprecedented", and enterprises that fail to meet the environmental assessment will be shut down by the environmental protection department.The further strengthening of environmental protection inspectors, and then the superposition of the demand side continues to grow, the future rising power of rubber additives prices is still sufficient, and China's rubber additives industry will benefit from the sustained and rapid development of rubber processing industry, large scale, high resource utilization, less pollution, rich product types, excellent quality enterprises will occupy the initiative in the future market competition, to win a broad space for development. In this general environment trend, Longxin according to the needs of the market and customers, after several years of experience accumulation, structural improvement and design optimization, for customers to manufacture rubber additives special disc dryer.Rubber auxiliary disc continuous dryer equipment introduction:Rubber auxiliary disc continuous dryer is on the basis of intermittent stirring conduction dryer, integrated a series of advanced technologies, through continuous improvement and development and manufacture of a multi-layer disc, rotary rake stirring, vertical continuous drying equipment, rubber auxiliary wet material into each layer of disc, heating in the way of heat conduction, under the action of rotating rake leaf ,The wet content in the constantly moving and rolling material evaporates at the operating temperature, and is discharged with the exhaust gas of the equipment, and the dry finished rubber auxiliary is continuously produced at the bottom of the equipment.Rubber auxiliary disc continuous dryer equipment advantages:1, this equipment is equipped with solvent recovery condenser, bag dust collector and other auxiliary machines, can easily recover solvent, dust emission in line with national requirements, energy consumption, environmental control and other adjustment to the ideal state.2, high degree of automatic control, exquisite design, efficient human nature; The residence time of the material can be precisely adjusted, and the material transfer rake blade can quickly empty the material in the dryer after the feed is stopped.3, the unique structural design makes the material flow single, there will be no anti-mixing phenomenon. The product quality is uniform and stable.Disk continuous dryer application introduction:In recent years, many countries have widely used this equipment in chemical, dyes, pesticides, plastics, medicine and food and other fields. Because compared with traditional drying equipment, it has the advantages of high thermal efficiency, energy saving, uniform drying, good product quality, less pollution and small footprint, etc., disk dryer has broad development prospects in drying technology, which has attracted more and more people's attention and research. According to the product performance, drying requirements and processing capacity, the disc dryer can flexibly adjust the spindle speed, control the temperature distribution, end cooling and cooling operations, superior performance can be seen at a glance.Our company is a set of design, production, installation, commissioning as one of the comprehensive enterprises, welcome new and old customers to visit the factory to visit the prototype, discuss cooperation!Read More

Basic magnesium carbonate flash dryerCase introduction: Basic magnesium carbonate flash dryer is a new type of continuous drying equipment that integrates drying, crushing and screening. The drying time of basic magnesium carbonate wet material in the drying tower is only 5-8 seconds, and the water evaporates instantly.Basic magnesium carbonate is a loose white powder or a light brittle substance. It is almost insoluble in water, but causes a mild alkaline reaction in water. Insoluble in ethanol, can be dissolved by dilute acid and foamed. It doesn't normally break down. Mainly used as a filler and reinforcing agent for transparent or light-colored rubber products, the reinforcing effect is better than calcium carbonate and clay. Its refractive index is similar to that of natural rubber, so it is suitable for manufacturing transparent or translucent products, and can enhance the wear resistance, bending resistance and tensile strength of rubber. It can also be used as an additive in paints, graphite and coatings, and in industries such as toothpaste, medicine and cosmetics.Basic magnesium carbonate flash dryer is a set of drying, crushing, screening in one of the new continuous drying equipment, basic magnesium carbonate wet material in the drying tower drying time is only 5-8 seconds, the water evaporates instantly, the quality of the dried product and drying temperature, wind speed, air volume, crushing speed has a great relationship. The hot air enters the annular gap at the bottom of the drying chamber in the tangential direction from the inlet pipe and rises spirally. At the same time, the material is quantitatively added into the tower by the feeder and has full heat exchange with the hot air. The large and wet material is mechanically broken under the action of the agitator, and the material with low wet content and small particle size rises with the rotating air flow and is transported to the separator for gas-solid separation .The finished product is collected and packaged, while the exhaust gas is treated by a dust removal device and emptied.Basic magnesium carbonate flash 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 5-8 seconds, and the water evaporates instantaneously. The quality of the dried product has a lot to do with the drying temperature, wind speed, air volume and crushing speed.Longxin has a unique design scheme, welcome the demand of customers to call to mail consultation details!Read More

Adhesive industry - sand millThe main composition of adhesive is resin + additive + powder filler. It is divided into two categories: single component and two-component. After the mixer is initially mixed evenly, the single component is repeatedly ground through the three-roll grinder, and then the cross-linking agent (coupling agent) is added back to the mixer. Two components usually A component is mixed evenly through the mixer, repeatedly ground evenly through the three-roll machine, and then directly filled, B component is usually not ground, directly packaged.Adhesive industry usually choose mechanical three-roll machine more, but with the development of The Times, the pursuit of product fineness, output growth, automation degree is getting higher and higher, such as Xinan Chemical, Dongyue, Hongbo, Debang, Kangda, Xinyue, Henkel, Sika, 3M and other large enterprises, more and more favor Longxin YS series and ES series hydraulic CNC three-roll grinding machine ,They are high-precision three-roll grinders specially built for ultra-high precision and narrower particle size distribution requirements, with repeatability and high efficiency unmatched by traditional three-roll grinders.Read More

Aluminum hydroxide rotary flash dryerCase introduction: Aluminum hydroxide rotary flash dryer with wind as wet and heat carrier, fan as power, to achieve quality and heat exchange in the drying process, to achieve the separation of materials and wet equipment, compact structure, wide range of application, large production capacity, good product quality, high efficiency, energy saving.Aluminum hydroxide engineering description:Aluminum hydroxide is a kind of inorganic flame retardant additive with large amount and wide application. Aluminum hydroxide as a flame retardant is not only flame retardant, but also can prevent smoke, do not produce drops, do not produce toxic gases, therefore, obtain a wide range of applications, the use is also increasing year by year. At the same time, aluminum hydroxide is also the basic raw material of aluminum fluoride necessary for electrolytic aluminum industry, and aluminum hydroxide is also widely used in this industry.In the next few years, the products of the aluminum hydroxide market will become more and more diversified, the technical level of the industry is getting higher and higher, the quality of products will steadily improve, and the competition and market will be further rationalized.According to the characteristics of aluminum hydroxide and the integration of advanced concepts, Longxin developed a special rotary flash dryer for aluminum hydroxide on the basis of mass production experience.Aluminum hydroxide rotary flash dryer equipment introduction:The hot air enters the main tower and forms a spiral-shaped high speed rotating air flow. Adjusting the annular gap at the bottom can make the wind speed in a good and suitable state. The aluminum hydroxide enters the drying tower through the feeder, and is quickly dispersed and the air flow rotates at high speed under the impact and drive of high speed air flow. Large and wet particles fall under the action of gravity, will be forced by the crushing device at the bottom of the particle, and then rotate up with the high-speed air flow to complete the drying.Aluminum hydroxide rotary flash dryer equipment features:1. The final moisture and fineness can be effectively controlled through the coordination and unification of the swirl sheet and the inlet air speed.2. the crushing device has a unique structure, with small wear, wide contact area, large cutting force and other characteristics.3. after the improvement, the drying strength is greater, the energy consumption is lower, the thermal efficiency can reach more than 70%, is the organic combination of swirl, fluidization, spray and grinding classification technology.  Rotary flash dryer equipment application:Flash drying is based on wind as wet and heat carrier, fan as power, to achieve the quality and heat exchange in the drying process, to achieve the separation of materials and wet parts of the equipment, compact structure, wide range of application, large production capacity, good product quality, high efficiency, energy saving, can complete the drying, crushing, screening steps, the performance of the whole machine to reach the level of international advanced technology ,Suitable for inorganic substances, organic matter, ceramics, dyes, food and other industries drying operations.Our company can customize the rotary flash dryer according to the material characteristics and customer requirements, looking forward to your call to mail, consultation and detailed discussion!Read More

Ink industry sanding machineGrinding equipment is one of the core equipment for the production ink, which is mainly used for mixing, grinding and dispersing pigments and base materials. At present, the common grinding equipment on the market are three-roll grinding machine, fully closed horizontal bead mill, large flow horizontal sand mill, vertical sand mill and so on.Among them, the three-roll grinding machine is generally used for the production of offset printing ink, screen printing ink, printing ink, its grinding effect is good, grinding gloss, high efficiency, fully closed horizontal bead mill is suitable for the grinding of high-viscosity pigment ink, has a unique sealing structure, to avoid pigment leakage, horizontal sand mill is generally used for water-based ink and solsol-based gravure ink ,Suitable for low viscosity ink material grinding, vertical grinding machine is suitable for large quantities and different types of pigment grinding.1. Deploy equipmentThe blending equipment is mainly used for weighing, mixing and matching various raw materials, including high-speed dispersion mixer, dual-shaft high-shear mixer, metering pump, etc. Among them, the high-speed dispersion mixer uses high-speed rotating blades to mix raw materials, which is suitable for mixing pigments and resins; Dual-axis high-shear mixers stir, break and cut viscous materials with high-speed moving dual-axis blades, which are suitable for mixing high-viscosity pigments and polymers.2. Filtration equipmentThe filter equipment is used to filter the ink that has been ground, remove the impurities and residue, and ensure the stability and reliability of the ink quality. Common filtration equipment includes horizontal filter, vertical filter, laminated filter, etc., the selection of filter equipment needs to consider the type of ink, purification effect and other factors.3. Filling equipmentThe filling equipment is mainly used for packaging and filling the purified ink, and is equipped with the corresponding measuring and testing equipment to ensure the quality and stability of the ink. Common filling equipment includes manual filling machine, automatic filling machine, metering pump, etc., which has a high degree of automation and fast filling speed, can greatly improve production efficiency and quality.Read More

Paint industry sand millThree-roll grinding machine is a very widely used basic general equipment, with the market for ink coating requirements, Longxin three-roll grinding machine is also constantly developing and updating. Longxin company from S series three-roll machine, SG series three-roll machine, YS series hydraulic three-roll machine to ES series CNC three-roll machine, due to the lack of tightness of the three-roll machine, now also have customers choose sanding machine to improve the grinding process.The production line of paint production and preparation equipment in the chemical industry includes feeding system equipment, grinding system equipment, paint mixing system equipment, discharge and filtration system equipment, filling system equipment, control system equipment, operating platform and color paste production parts.In the process of paint preparation, from feed to discharge, finished product packaging, fully automated production, pipeline-type production process, high efficiency, the use of Longxin mature dispersion grinding system, layout of the equipment plan without a process, and finally, the grinding out of the material is Read More

Citric acid vacuum rake dryerCase introduction: The citric acid vacuum rake dryer is improved from the traditional rake dryer, which is a horizontal stirring dryer based on indirect heat conduction. After the citric acid wet material enters the dryer, it is stirred by the continuously rotating rake teeth and indirectly heated by steam, and the water in the citric acid wet material is vaporized and then pumped away by the vacuum pump in time.Citric acid material description:With the progress of biotechnology, the citric acid industry has developed by leaps and bounds. Citric acid has a strong acid, in food and medicine, chemical textile, sterilization, environmental protection, livestock feed and other industries have an extremely wide range of applications, citric acid can also be deeply processed, which is a rich industrial chain. In the field of citric acid fermentation technology, due to the application of high-yield strains and the continuous development of new technologies, citric acid fermentation and extraction yield have been significantly improved, and people are vigorously developing immobilized cell cycle bioreactor fermentation technology.The current "Comprehensive Emission Standards for Pollution" stipulates that all enterprises engaged in the production of citric acid in China must build environmental protection facilities commensurate with the scale of production, and the emission of major pollutants must meet the emission standards stipulated by the State, and enterprises that fail to meet the standards shall stop production or limit production in accordance with relevant environmental protection laws and be punished. How to environmentally friendly production of citric acid has become the first problem to be solved by suppliers.Longxin pays attention to understand the needs of the market and customers, according to the characteristics of citric acid design, while taking into account personnel operability, safety, site limitations, dust recovery environmental protection, etc., based on advanced and mature production technology and more than ten years of actual drying experience, tailor-made special vacuum rake dryer for citric acid.Citric acid vacuum rake dryer equipment principle:The special dryer for citric acid is improved by the traditional rake dryer, which is a horizontal stirring dryer based on indirect heat conduction. After the citric acid wet material enters the dryer, it is stirred by the continuously rotating rake teeth and indirectly heated by steam, and the water in the citric acid wet material is vaporized and then pumped away by the vacuum pump in time. After innovative improvements, this equipment can be simultaneously heated with sandwich and rake teeth, so that the heat transfer area is larger, the thermal efficiency is greatly improved, and the degree of drying is stronger.Due to the high vacuum operation, the water vapor pressure on the surface of the citric acid is much greater than the water vapor pressure in the evaporation space inside the machine, thus accelerating the discharge of wet content.Citric acid vacuum rake dryer Technical features:1. because the citric acid concentrated solution has a stimulating effect on the skin, with flammability, dust and air contact can form explosive combustible, citric acid special dryer for its characteristics, the use of high vacuum operating system, eliminate the drying process of outside air intervention, to ensure that the operating environment is clean.2. the use of steam through the jacket, the use of latent heat to heat the wet material, the drying cost, heat consumption, operating costs greatly reduced.3. As energy consumption, pollution and safety have become strict control indicators, the condenser load used in the equipment is small, and the material solvent can be conveniently recovered, reducing pollution, further saving energy and improving efficiency.4. Due to the continuous positive and negative rotation of the rake teeth in the process, the wet material is fully stirred and uniform, avoiding the overheating phenomenon of the citric acid, and low temperature, high dryness and fine-grained citric acid dry products can be obtained.Vacuum rake dryer application range:The unique structure and drying method of vacuum rake dryer make it mainly used in the drying of explosive, easily oxidized, paste, paste materials, drying under high vacuum, the boiling point of solvent is reduced, while blocking the outside air infection, but also to avoid oxidation and overheating deterioration in the drying process of materials. According to the different characteristics and requirements of the drying material, the sealing system of the vacuum rake dryer can also be selected, and the special design sings the sealing and service life. Strong adaptability, a wide range of applications, energy saving and low consumption, easy operation, environmental protection, good quality of finished products, these obvious advantages make the vacuum rake dryer extremely by medicine, food, chemical and other industries paste, paste, powder and other materials, as well as easy oxidation, explosive, strong stimulation, highly toxic and other materials drying operation of the warm favorite.Our company can provide solutions and manufacturing equipment according to the characteristics of materials and customer needs, welcome new and old customers to visit the prototype, discuss cooperation, create a win-win situation!Read More

Iron glycine fluidized bed dryerCase description: Longxin selected the improved vibrating fluidized bed dryer as the prototype to develop the special dryer for iron glycine: vibrating fluidized bed dryer provides vibration force through the vibration motor to effectively prevent the phenomenon of iron glycine caking;The vibrating fluidized bed has a good drying function, and the uniformity and fluidity of the finished iron glycinate reach the ideal state, while the quality is guaranteed, the equipment is more energy saving.Iron glycine is made of glycine and ferrous sulfate, high purity, strong stability, no ferrous sulfate, used in feed, can be faster iron supplementation, enhance hematopoietic function. The stable cantharidin form of glycine ferroelectric neutrality makes the biological titer higher, has good oxygen carrying function, and improves the skin color of livestock and poultry more obvious.Longxin selected the improved vibrating fluidized bed dryer as the prototype to develop the special dryer for iron glycinate: The vibrating fluidized bed dryer provides vibration force through the vibration motor to effectively prevent the phenomenon of iron glycinate caking ;The vibrating fluidized bed has a good drying function, and the uniformity and fluidity of the finished iron glycinate reach the ideal state, while the quality is guaranteed, the equipment is more energy saving. Iron glycine fluidized bed dryer process flow:Primary filter → fan → radiator → hot air inlet pipe → fluidized bed drying machine → discharge of fluidized bed machine → primary cyclone separator → secondary pulse dust collector → induced draft fan → exhaust chimney.During drying work, the iron glycine moves forward by leaps under the exciting force provided by the vibration motor, and the hot air sent under the distribution plate contacts with the iron glycine to carry out mass and heat transfer and steam out the wet content to achieve the purpose of drying. The dried iron glycine finished product is discharged from the discharge port, and the dusty air is discharged by the induced draft fan after the dust removal.Iron glycine fluidized bed dryer equipment features:1. because the equipment through the vibration motor to apply vibration power, small fluidization gas speed is reduced, reduce the demand for air, so the dust entrain is reduced, the equipment supporting the heat source, fan, cyclone separator and other Settings can be reduced accordingly, reduce the cost of equipment while improving the energy-saving effect.2. adjust the vibration parameters can change the residence time of iron glycine in the dryer, because of the piston operation, reduce the uniformity and regularity of the requirements, easy and convenient to obtain uniform dry finished iron glycine.3. vibration contributes to the dispersion of iron glycine, can be convenient and smooth fluid drying.4. no violent material return, the airflow speed is lower than that of the ordinary fluidized bed, the damage to the iron particles of glycine is small, and the crystal and particle surface brightness are not destroyed.Read More

Sealed boiling dryer for p-nitrobenzoic acidCase introduction: Para-nitrobenzoic acid closed boiling dryer is a new type of dryer with inert gas to protect recyclable solvent. When the wet material of para-nitrobenzoic acid enters the main engine of the dryer through negative pressure or floor blanking, the inert gas is injected into the drying system. After the system contains a certain amount of oxygen, the hot air and wet material of p-nitrobenzoic acid are fully mixed to carry out mass and heat transfer.P-nitrobenzoic acid is a yellow-white crystal, commonly used as pharmaceutical intermediates, such as procaine, procaine amide, folic acid and other drugs synthesis, but also widely used in dyes, fuels and synthetic pesticides. Potassium p-nitrobenzoate is toxic and irritating to the skin, and should be sealed and dry and kept away from light. Production equipment should be sealed to prevent leakage. Operators should wear protective equipment to avoid contact with skin and eyes of potassium p-nitrobenzoate. Production process of p-nitrobenzoic acid:It is obtained by the oxidation of p-nitrotoluene. The oxidizing agent can be sodium dichromate, air, manganese ore powder, nitric acid, etc. P-nitrobenzoic acid was synthesized from p-nitrotoluene by oxidation with sodium dichromate in the presence of sulfuric acid at 55℃. The reaction liquid is filtered, dehydrated and dried to obtain the finished product. In addition, 1-p-nitrophenyl-2-amino-1, 3-propanediol, the right-hand compound in the production of chloramphenicol, is easily oxidized with nitric acid to obtain p-nitrobenzoic acid.According to the physical characteristics of p-nitrobenzoic acid, Longxin selected closed boiling as the prototype machine, and made a special dryer for p-nitrobenzoic acid through continuous research and development and improvement. Closed boiling dryer is a new type of dryer with inert gas to protect recyclable solvent. When wet material of p-nitrobenzoic acid enters the main engine of the dryer through negative pressure or floor blanking, inert gas is passed into the drying system. When the oxygen content of the system reaches a certain content, the hot air after heat exchange of the heat exchanger will be sucked into the dryer through the fan under negative pressure .Mass and heat transfer were carried out after mixing with p-nitrobenzoic acid wet material. The p-nitrobenzoic acid is continuously dried, and the steamed moisture is continuously sucked out by the induced draft fan.The extracted gas and part of the fine powder will enter the gas-solid separator, and the separated p-nitrobenzoic acid fine powder will settle and recover, and the gas will be taken away by the fan. The moisture will be dehumidified by the surface cooler, and then into the cooling recycler, until a certain amount is reached, and then out of the system, collected and stored. The gas dehumidified by the surface cooler will return to the heater inlet for the next drying cycle.Para-nitrobenzoic acid closed boiling dryer equipment features:1. the operation of the equipment is completely closed, the internal is filled with inert gas protection, effectively isolated the external air intrusion, the whole equipment explosion-proof, deodorant, anti-solvent gas leakage.2. the solvent gas is closed recovery, not only to protect the environment, no pollution waste gas discharge, in line with national GMP standards, recovery of solvent means high economic benefits and cost reduction.3. The air dehumidified by the condenser is a dry gas with low moisture content. When the inert gas is nitrogen, the effect of nitrogen displacing the solvent greatly improves the drying efficiency.4. The micro-negative pressure operation of the drying host can avoid the occurrence of powder jet in the host when the equipment is micro-leaking.5. set up a burst port and oxygen sensor, effectively avoid the equipment beyond the operating conditions after the occurrence of safety accidents.Structure characteristics of sealed boiling dryer for p-nitrobenzoic acid1. the host adopts circular vertical structure, there is no dead Angle in the host. Automatic feed and feed structure is adopted, and there is a stirring mechanism in the skip, which can break the phenomenon of ditch flow and assist fluidization. The inner bag dust collector is arranged in the upper cylinder body, and the ash is cleaned by pulse chamber. The skip car and the main engine are sealed by silicone, with good sealing performance and no leakage. The main machine is equipped with a blasting port, which automatically explodes when there is a security hazard in the system.2. the gas-solid separator adopts high pressure pulse online dust removal method, the cloth bag adopts the suction type skeleton structure, easy to disassemble, the cloth bag adopts peritoneal cloth bag dust removal effect is good, there is no dust in the tail gas, can ensure the dust collection rate of more than 99.5%, and effectively protect the table cooler and heater.3. the surface cooler (liquid collection tank needs to be equipped with another) adopts efficient plate fin structure, which can effectively recover the solvent in the tail gas, and the solvent recovery rate is more than 90%.4. the fan adopts the company's special sealing form, which can ensure that the external leakage rate of the system is zero.5. the heater uses bent fin winding fin tube, high thermal efficiency, small volume.Longxin continues to absorb advanced technology at home and abroad and with more than ten years of down-to-earth drying experience, the airtight boiling dryer improved and developed has been popular sales since its debut, has been widely used in all walks of life, and has become a star product of our company .Our company has the industry's advanced experimental center, equipped with a variety of prototypes, warmly look forward to new and old users to visit the factory for testing, to discuss cooperation!Read More

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