40 results about "Spray dryer" patented technology

This utility model relates to the technical field of spray dryers for traditional Chinese medicine extracts, specifically a spray dryer for traditional Chinese medicine extracts, including a machine body, a cover plate, a connecting mechanism, and a cleaning mechanism. The machine body has a support base at its bottom, and several support bases are provided. The cover plate is connected to the machine body via the connecting mechanism. The connecting mechanism includes a fixing block, an annular groove, an electromagnet, and bolts. The annular groove is formed on the side wall of the cover plate. One end of the fixing block is connected to the machine body via the bolts, and the other end of the fixing block extends into the annular groove, with the portion of the fixing block extending into the annular groove matching the groove. One end of the electromagnet is connected to the top of the machine body, and the other end of the electromagnet is attracted to the side wall of the cover plate. Several connecting mechanisms are provided. The cleaning mechanism includes a through groove, a vertical block, a sliding component, a sealing block, and a scraper. This utility model of a spray dryer for traditional Chinese medicine extracts solves the problem of inconvenient cleaning of current equipment.

The embodiment of the application discloses a preparation method of a target temperature-sensitive drug-loaded composite microsphere based on attapulgite, which comprises the following steps: carrying out purification treatment on original attapulgite based on an aqueous solution of inorganic strong acid to obtain purified attapulgite; mixing the purified attapulgite, gypenoside, inulin and folic acid to obtain a mixture, and carrying out mixing treatment on the mixture based on deionized water to obtain a composite microsphere suspension; conveying the composite microsphere suspension into a spray dryer to carry out granulation to obtain primary drug-loaded composite microspheres; adopting a melt impregnation method to coat lauric acid on the surface and pores of the primary drug-loaded composite microspheres, and cooling the primary drug-loaded composite microspheres coated with lauric acid to room temperature to obtain the target temperature-sensitive drug-loaded composite microspheres. The application can not only realize temperature change-based on-off type control release of drugs, significantly improve the targeting and treatment accuracy of drugs, but also reduce the systemic toxic side effects of chemotherapy from the source, and realize efficient and low-toxicity synergistic treatment.

The present invention relates to a spray dryer device (200) with a vessel (202). A spray nozzle (208) is arranged in the vessel (202) for forming a stream of liquid droplets (141) from a liquid material (140). Heated gas is supplied to the vessel (202) to, from the stream of liquid droplets (141), form a particulate material (150) by drying the liquid droplets (141). The device (200) includes a temperature sensor arrangement (120) with spatially distributed temperature sensing elements (122) that sense a spatial temperature distribution at an exterior wall (204) of the vessel (202). A processing device (130) acquires a time series of these temperature distributions and analyzes the time series to determine if fouling (152) of the particulate material (150) has occurred at an inside of the exterior wall (204). If fouling has occurred, the processing device (130) generates a signal indicating a fouling condition within the vessel (202). A method (300) of monitoring a spray dryer device (200) is also disclosed.

This invention relates to the field of spray drying technology, and more particularly to a spray dryer for enzymatic powdered oil processing. The dryer includes a shell, with a raw material box for storing powdered oil materials fixedly connected to the side wall of the shell. A conduit is fixedly connected to the top of the raw material box, and a pump body is fixedly connected to the top end of the conduit. A spray drying mechanism is located at the center of the top of the shell, and the end of the pump body's suction pipe extends into the interior of the spray drying mechanism. This invention utilizes a flexible inner cylinder within the drying tower to vibrate and dislodge materials adhering to the inner wall. Simultaneously, the centrifugal force generated by the high-speed rotation of the conical column drives the spring rod and movable push rod to continuously rotate along the inner wall of the annular limiting groove, achieving a squeezing and collision effect between the movable push rod and the elastic limiting block. This effectively dislodges the materials adhering to the inner wall, allowing the materials to fully contact the hot air for drying, improving the drying effect and ensuring the quality of the prepared materials.

Microbial origin protein (MOP) is regarded as an alternative to feed and food grade protein, offering a sustainable solution (negligible land footprint and a water footprint 14 times lower than that of soybean) to partially support the increased supply needs. Our goal is to incubate methane-oxidizing bacteria (MOB) by using bubble column bioreactor (BCB) with internal gas recycling. The production process of microbial origin protein consists of 4 steps: (a) fermentation step using a bubble column bioreactor (BCB) with internal gas recycling (polypropylene with a thickness of 11 mm) and working volume of 20 L and column dimension of 11.8 cm as internal diameter (D) and 213.0 cm as height (H), and a H / D ratio of 18.05; (b) biomass harvesting and concentration using centrifugation during 15 min at 3500 rpm and 4°C; (c) High Pressure Homogenization (HPH) processing was used to homogenize the biomass in four passes at pressure levels of 150 MPa with a duration of 4 min between the different passes; and (d) Spray-drying of the biomass using a spray dryer equipped with a rotary atomizer and the atomization pressure was maintained at 0.6 MPa. The methanotrophic biomass obtained exhibited an outstanding nutritional value. More specifically, a high protein content (~62%) along with a balanced amino acids profile, covering all dispensable and non-dispensable AAs, was produced by this process. Moreover, the lipid content (~8%) was also comparable to other nutrient sources such as fishmeal (8%). All the results obtained, and all the parameters determined in the present study are sufficient to implement a bubble column bioreactor at industrial scale and to produce the microbial origin protein (MOP) for animal and human nutrition.

This utility model relates to a drying tower for a centrifugal spray dryer, belonging to the technical field of drying equipment. This utility model uses a motor to drive a scraper frame to rotate, which in turn moves the scraper blades along the inner wall of the drying tower. This effectively removes residual powder particles adhering to the inner wall of the drying tower, reducing material waste and increasing material collection capacity. Simultaneously, it reduces reliance on manual cleaning, lowers cleaning difficulty and worker workload, eliminates the need for frequent machine shutdowns for cleaning, saves time and labor costs, and improves production efficiency.

The present invention relates to a device for providing anticaking material to a drying chamber of a spray dryer. It also relates to spray drying apparatus including such a device, and methods for providing anticaking material to a drying chamber of a spray dryer.

This application relates to the field of spray dryer technology and discloses a spray calcination device that is easy to clean. The device includes a dryer body, a feeding frame fixedly installed at the lower end of the dryer body, a servo motor installed inside the feeding frame, and a cleaning component installed on the servo motor. The cleaning component includes a rotating rod fixedly installed at the output end of the servo motor, a mounting rod fixedly connected to one side of the rotating rod, and a cleaning plate fixedly connected to one side of the mounting rod. The cleaning plate is inclined and fits against the lower side wall of the dryer body. By using the cleaning component inside the dryer body, both the upper and lower side walls of the dryer body can be cleaned separately. This prevents particles from adhering to the side walls for extended periods during use, thus avoiding contamination of the side walls and blockage of the feeding channel near the feeding frame at the lower end. This keeps the inside of the dryer body clean and facilitates subsequent disassembly and cleaning of the dryer.

A method for treating desulfurization wastewater using triple-effect flash evaporation. Current desulfurization wastewater treatment methods can only remove most heavy metals and suspended solids, but cannot effectively remove chloride ions and soluble salts. The effluent still has high Cl⁻ and TDS content, making it difficult to meet discharge standards or reuse. This invention includes the following steps: wastewater is flash-concentrated stage by stage in a triple-effect flash evaporation system. The final concentrate is sent to a spray dryer through an outlet pipe. High-temperature flue gas from the boiler tail flue is precipitated by a tubular dust collector and then enters the spray dryer through a flue pipe under the action of a fan, mixing with the concentrated wastewater droplets sprayed from the sprayer. The wastewater is rapidly evaporated and dried, and the resulting dry powder is captured by an electrostatic precipitator along with the flue gas, achieving zero wastewater discharge. This invention is used for desulfurization wastewater treatment.

This invention relates to a method for preparing easily dispersible pigments using graphene-modified CI Pigment Red 179. Monolayer graphene or monolayer graphene oxide powder and a solvent are added to water and stirred to mix. CI Pigment Red 179 is then added, and the mixture is stirred and slurried to obtain a pigment slurry. A nonionic surfactant is added, and the mixture is stirred and slurried again. The slurry is then dispersed by grinding in a sand mill. An anionic surfactant is added to the dispersed slurry, and the mixture is dried in a spray dryer to obtain an easily dispersible pigment. The easily dispersible pigment obtained by this invention using graphene-modified CI Pigment Red 179 exhibits high tinting strength, small particle size, more concentrated particle size distribution, and good dispersibility when used in coatings and inks. The tinting strength can reach 129%, the average particle size is reduced from 24.140 μm to 4.482 μm, the particle size distribution is more concentrated, and soft, easily dispersible pigment particles are obtained.

This utility model relates to an airlock unloading device for a centrifugal spray dryer, belonging to the technical field of drying equipment. This utility model uses a rotating shaft, a pusher plate, and an airlock cover in conjunction. As the material is pushed out of the discharge port, the airlock cover blocks the airflow, effectively preventing airflow from escaping from the discharge port and further reducing the outflow of hot air from the drying tower. This ensures stable temperature inside the drying tower and improves drying efficiency.

This invention discloses a post-processing system for fluoropolymers. The system comprises an electro-adsorption liquid device, a continuous negative pressure jet flash evaporator, and a spray dryer connected in sequence. The fluoropolymer emulsion is treated by the electro-adsorption liquid device to remove residual initiator decomposition fragments, and then conveyed to the continuous negative pressure jet flash evaporator for flash concentration to obtain a concentrated fluoropolymer slurry. This slurry is then spray-dried in the spray dryer to produce resin powder. The fluoropolymer is obtained by polymerization of reactants including monomers and an initiator. The post-processing flow provided by this invention is simple and can further reduce the amount of residual impurities in the fluoropolymer and improve its heat resistance and processing performance.

This application discloses a powder particle size testing system and control method applied to a spray dryer, wherein the media pipeline and the sampling pipeline are set at an acute angle. The powder particle size testing system and control method for a spray dryer provided by this invention connects the sampling pipeline to the spray dryer, and the media pipeline is connected to the sampling pipeline at an acute angle. The media pipeline draws in the dispersion medium from the dispersion medium chamber, simultaneously creating a negative pressure at the connection point of the sampling pipeline. The sampling pipeline can draw in the airflow mixed with powder particles from the spray dryer. The dispersion medium and the product in the spray dryer are simultaneously input into the sample chamber to form a test sample. The test sample circulates between the sample chamber and the laser testing unit, which completes the particle size testing process. The extraction efficiency is adjusted by regulating the opening of the first proportional solenoid valve, ensuring that a suitable test weight of powder particles is drawn in during the second pump's pumping of a suitable volume of dispersion medium.

This utility model discloses a balancing adjustment mechanism for an atomizing disc in a high-speed centrifugal spray dryer, relating to the field of atomizing disc technology. It includes an outer frame, with an electric telescopic rod fixedly connected to the lower part of the frame. A lifting platform is fixedly connected to the output end of the electric telescopic rod. A rotating platform is rotatably connected to the upper part of the lifting platform. A movable frame is fixedly connected to the upper part of the rotating platform. A movable bracket is threadedly connected to the inner wall of the movable frame. A handle is fixedly connected to the upper end of the movable bracket. A push rod is slidably connected to the lower part of the handle. A movable ball is fitted to the lower part of the push rod. This utility model detects the horizontal deviation angle of the atomizing disc through four individually adjustable movable brackets, thereby determining whether reinstallation is necessary. The lifting platform drives the movable ball downwards to correct the horizontal deviation of the atomizing disc, ensuring uniform liquid distribution and high consistency in atomized particle size during disc rotation.

This utility model belongs to the field of dryer technology, specifically relating to a cooling granulation spray dryer. The utility model includes a machine body, a cold air nozzle, a cold air duct, a cyclone separator, and a material pipe. The machine body has a selection plate inside, which is connected to the inner wall of the machine body via a connecting rod. Below the selection plate is a multi-functional material spray head, which cooperates with a functional rod. By setting up the multi-functional material spray head and rotating the functional rod, different screening meshes on the screening disc are selected, thus achieving the effect of changing different nozzles and avoiding nozzle clogging, which is simple and quick.

The utility model relates to spray drier internal cleaning technical field discloses a kind of spray drier tower body internal cleaning wall sticking material device, including the spray tower body of upper wide narrow inverted conical container structure, the atomizer is equipped with in the top of spray tower body, bottom is provided with discharge port, the scraper that adheres to its inner wall is vertically equipped in the inner wall of spray tower body, the positioning plate is fixedly arranged in the top of spray tower body, fixed ring is coaxially fixedly connected in discharge port, the positioning end of scraper upper end is movably connected with positioning plate, scraper lower end is movably connected with fixed ring, the device uses the scraper that adheres to the inner wall of spray tower body to clean the material powder sticking on inner wall, three sets of slider track mechanism limit the movement direction of scraper, reduce the space occupancy of spray tower body, also greatly improve production efficiency.

The present invention relates to a low-temperature spray-drying process for a feed solution containing a polypeptide. The process mainly comprises: introducing a feed solution containing a certain concentration of polypeptide into a spray dryer and introducing an atomizing gas by using a flow rate for the atomizing gas, the feed inlet temperature being 45-81°C, and the relative humidity of the atomizing gas being below 10%. In the present invention, spray drying is performed at a low temperature, having the advantages of spray drying while protecting the polypeptide from damage. The content and number of impurities in the polypeptide before and after spray drying remain essentially unchanged, with no new impurities generated, which is significantly better than under high-temperature conditions and facilitates improvement of the safety and efficacy of the pharmaceutical product. By using the method of the present invention, the product yield can be guaranteed while ensuring the quality of the polypeptide product, with a yield greater than 93%, which facilitates industrial-scale production. Additionally, according to the method of the present invention, the particle size of a dried product is stable and has minimal variation, which facilitates the stability of subsequent processes.

The utility model relates to based on nozzle adjusting assembly for spray drier, aims at solving the process of using the current nozzle because of not having the adjusting structure, cannot adjust the direction of nozzle spouts, cannot adapt the direction of nozzle spouts required by the user to increase the limitation of nozzle's technical problem, including: drying tower body is used for spray drying operation, the bottom end middle part intercommunication shower nozzle is connected in the drying tower body inner chamber both ends, and both ends extend to the outside through the bearing rotary connection in drying tower body both ends, and one end opening is used for feeding, and the other end is closed, adjusting mechanism is located drying tower body outer wall, is used for adjusting the spray angle of shower nozzle, adjusting mechanism includes: fixed base is fixed in drying tower body outer wall, the utility model can accurately control the rotation of the guide pipe driven shower nozzle, realize the multi-angle adjustment of the spray direction, completely solve the limitation that traditional nozzle cannot adapt to different drying scene, significantly improve the adaptability of equipment to material drying path.

The utility model relates to spray drier related technical field especially, and more particularly to a kind of powder detergent spray drying mechanism, including drying cylinder, annular pipe is fixedly installed on the inner ring upper surface of drying cylinder, the side of annular pipe is equally spaced and has jet port, the upper surface of annular pipe is fixedly connected with air inlet pipe, three-way pipe is fixedly installed at the air inlet of the lower portion of heater, the side opening of three-way pipe is fixedly connected with air inlet fan, the upper surface of drying cylinder is fixedly perforated with feed pipe.This powder detergent spray drying mechanism, by annular pipe installation corresponding jet port, make jet port while spraying high-temperature gas, blow fan blade, drive atomizer to rotate, atomizer in the process of rotation, further disperse material, and jet port is inclined downward, can form helical wind power in drying cylinder inner ring, can bring material to rotate descending along drying cylinder inner ring, increase contact time, make drying more fully.

The application discloses a double-flap valve discharging structure for a titanium dioxide spray dryer cyclone, and relates to the technical field of valves.The double-flap valve discharging structure for the titanium dioxide spray dryer cyclone comprises a device main body, wherein the device main body comprises a discharging port, a valve plate and a weight; and the device main body further comprises a secondary sealing buffer force storage mechanism arranged at the bottom of the discharging port.The double-flap valve discharging structure for the titanium dioxide spray dryer cyclone is characterized in that, when the valve plate is closed, the valve plate first abuts against the bottom of a secondary sealing ring, pushes a first annular plate to move upwards along a first sliding cavity to extrude gas, thereby playing a buffering and force storage role; in addition, the bottom of the valve plate abuts against the bottom of the discharging port, thereby forming a double sealing effect on the discharging port; when the valve plate is opened, the gas in the first sliding cavity can provide a downward thrust on the valve plate through the secondary sealing ring, thereby reducing the opening resistance, protecting the valve components and ensuring the action reliability.

This invention provides a microcapsule powder of mixed animal and plant oils and its preparation method, belonging to the field of oil processing technology. The preparation method includes: melting solid sheep tail fat and distilling it under reduced pressure to obtain refined sheep tail fat oil; adding protease to flaxseed oil for enzymatic hydrolysis, then adding thyme for stirring and reaction, and filtering to obtain refined flaxseed oil oil; adding the refined flaxseed oil oil to the refined sheep tail fat oil, and then adding lipase Lipozyme RM IM for transesterification to obtain a mixed refined oil; providing a slurry made of wall material, adding the mixed refined oil oil to the slurry, and homogenizing it to obtain a homogeneous emulsion; spray drying the homogeneous emulsion using a spray dryer to obtain the mixed animal and plant oil microcapsule powder. This microcapsule powder has a reasonable n-6 fatty acid / n-3 fatty acid ratio, is easy to carry, water-soluble, has high antioxidant capacity, high human digestibility and absorption efficiency, high encapsulation rate, and good stability.

The invention relates to a process for converting magnesium chloride into magnesium oxide and HCl, comprising the steps of: - subjecting a magnesium chloride solution having a concentration of 30-50 wt% of magnesium chloride to thermal hydrolysis in a thermal hydrolysis reactor, which is a spray dryer, the reactor being at a temperature of at least 300°C, the heat in the thermal hydrolysis reactor being generated by combustion of a combustible gas provided by a burner, - withdrawing from the thermal hydrolysis reactor a solid magnesium oxide product and a gas stream containing HCl having a temperature of at least 300°C, characterized in that the combustible gas comprises at least 30 mole% of H2, calculated on the total number of moles of combustible compounds in the combustible gas, and in that the solid magnesium oxide product has a content of MgO of at least 97.5 wt% and a sum of basic magnesium chloride and magnesium chloride of less than 2.5 wt% (which corresponds to 1.2 wt% of chlorides), calculated on the total amount of these three components. It has been found that the use of hydrogen as combustible compound allows the formation of a high purity magnesium oxide product, while at the same time the processing temperature in the spray dryer can be kept relatively low. The latter is attractive from an economic point of view. Also claimed is a process for manufacturing a carboxylic acid, wherein the process for converting magnesium chloride into magnesium oxide and HCl is one of the steps.

This utility model relates to an airflow spray dryer comprising a shell, a blower, a heater, a material distributor, a peristaltic pump, and a separator. An isolation plate is installed inside the shell. A first mounting hole is provided at the left end of the shell, and a second mounting hole is provided at the top rear side of the shell. A housing is fixedly installed at the top left side of the shell. The blower is fixedly installed at the bottom inner end of the shell. The heater is fixedly installed at the bottom of the isolation plate, with one end of the heater connected to the outlet end of the blower. The material distributor is fixedly installed at the top inner end of the shell. The peristaltic pump is fixedly installed at the bottom inner end of the housing and connected to the first mounting hole. The separator is fixedly installed at the rear side of the shell and connected to the second mounting hole. The air blown by the blower enters the heater, increasing the airflow temperature, and then enters the top inner end of the shell. The peristaltic pump delivers the water-containing material to the top inner end of the shell, where the hot airflow dries the material. The airflow then sends the material to the separator for collection.

The application provides a traditional Chinese medicine drying spray dryer, and relates to the technical field of traditional Chinese medicine extract preparation. The traditional Chinese medicine drying spray dryer comprises a drying cylinder, two connecting channels are fixedly installed on the outer wall of the drying cylinder, each connecting channel is communicated with the drying cylinder, an extension channel is arranged between the two connecting channels, the extension channel comprises an extension pipe, two ends of the extension pipe are fixedly connected with connecting hoses, the ends of the connecting hoses are fixedly connected with fixed pipes, and the fixed pipes are communicated with each other. In the circulating working mode, the circulating fan drives the air in the extension pipe to flow, so that negative pressure is generated at the bottom of the extension pipe. The air in the drying cylinder and the medicine liquid for sufficient drying enter the extension pipe through the fixed pipes at the bottom, so that the hot air and the medicine liquid are driven to circulate and flow, the flow path of the medicine liquid and the hot air is improved, the drying time of the medicine liquid is prolonged, and the phenomenon of incomplete drying when the equipment is initially started is avoided.

A method for removing waste residue from spray drying is disclosed. This method addresses the problem of residue buildup on the walls of spray dryers after prolonged operation. The invention includes the following steps: a rotating wall-scraping mechanism is connected inside the cylinder. This mechanism includes a guide plate and a rotating plate. A drive motor is started, causing a main bevel gear to rotate. The main bevel gear meshes with a secondary bevel gear, causing the secondary bevel gear to rotate, which in turn causes a transmission gear to rotate. The transmission gear meshes with a fixed gear ring, thus rotating the rotating body. The rotating body and the scraper body are fixed together with bolts. The rotation of the rotating body drives the scraper body to rotate, and the scraper body remains in constant contact with the inner wall of the cylinder to scrape the walls. This invention is used in spray drying.