At present, spherical dryers on the market have limited drying effects when containing materials that are prone to forming lumps. They only have two functions: drying and mixing, and cannot complete reactions, crystallization, filtration, washing, and other operations. Other process operations need to be carried out on other equipment, making material transportation and purity assurance more complicated. To solve the above problems, Changzhou Baide has developed a new type of pharmaceutical and chemical production equipment with a unique spherical structure, which has four functions: reaction crystallization, solid-liquid separation, washing, and drying. It is mainly used in the production of pharmaceuticals, chemicals, and flammable and explosive industries.

Working principle of multifunctional spherical filter washing and drying machine
The multifunctional spherical filtration washing and drying machine is ingeniously combined with a brand new spherical container, rotor, and filtration device, and adopts an upward inclined stirring rotor structure to form a multifunctional integrated machine. It can solve the problems in pharmaceutical and chemical production and is the latest equipment that meets the requirements of the new GMP.
(1) Feeding: Firstly, the lower and upper hemispheres are closed by rotating the ball opening and closing device. After weighing the material (liquid), it enters the equipment through the vacuum suction port.
(2) Crystallization: Turn on the cylinder rotation, introduce chilled water into the jacket, activate the vacuum system, and if necessary, activate the crushing system. Cooling and crystallization of the material liquid can be adjusted according to the actual situation.
(3) Washing: Introduce washing solution into the suction port, only activate the spindle rotation function, and adjust the washing speed according to the actual situation.
(4) Filtering: After washing is complete, place the filter plate at the bottom, close the vacuum pneumatic valve, and introduce compressed nitrogen gas into the tank. The nitrogen pressure can be automatically maintained, and the residual night is discharged through the bottom residual night discharge port. During the pressure filtration process, opening the ball valve next to the residual liquid port valve can blow back the filter cloth. Vacuum filtration can also be performed.
(5) Crushing and drying: Turn on the spindle rotation, introduce hot water into the jacket, turn on the vacuum system, and the material comes into contact with the inner wall of the cylinder, flipping and conducting heating. The volatile solvent quickly vaporizes under vacuum and is discharged through a vacuum port. If there are lumps in the material, the crushing system can be activated according to the actual situation, and the speed of the crushing blade can be adjusted.
(6) Online cleaning: The cylinder body is equipped with a cleaning port in a quick opening form, with a closed lid and a plug. When cleaning, remove the closed lid with a plug and put in a cleaning ball.

Performance characteristics of multifunctional spherical filtration washing and drying machine
The spherical four in one multifunctional equipment integrates the advantages of pressure resistance, large surface area, and no dead corners in the inner cavity of spherical containers into the multifunctional machine for material reaction, filtration, washing, drying, and other functions. By cleverly combining the spherical structure container, rotor, and filtration device, and adopting an upward inclined stirring rotor design, a multifunctional integrated machine is formed.
(1) Obtain the maximum heating surface at the same volume; Obtain sufficient filtration area; The best voltage resistance;
(2) The spherical cavity has no material storage or cleaning dead corners.
(3) The chamber adopts a rotatable spherical container to solve the problems of pressure filtration, discharge and storage, and process cleaning dead corners, while obtaining the maximum heating and suction (pressure) filtration area.
(4) The sphere can rotate independently, allowing the equipment to enter different positions for crystallization, filtration, washing, and drying.
(5) Tilt the mixing spindle upwards to move the spindle seal to the upper half circle, freeing it from material intrusion and solving the problem of shaft seal contamination and failure. The spindle can rotate independently to achieve the functions of mixing, scraping, blending, and crushing materials.
(6) Design an openable suction filter device with the same inner surface on the spherical shell, which rotates together with the spherical cavity and can be disassembled from the outside. It can make the surface inside the spherical cavity smooth and free of dead corners.

Technical advantages of multifunctional spherical filtration washing and drying machine
The main body of the multifunctional spherical filtration washing and drying machine is divided into an upper sphere and a lower sphere. The dryer body is connected to the upper and lower spheres through hinges, and is equipped with a crushing device for crushing and granulating raw materials, a sealing device for preventing raw material leakage, a filtering device for removing processed materials, and a stirring device for stirring, drying, and mixing reactions.
(1) Filter plate: Due to the addition of a filter plate at the bottom, the equipment has added functions such as reaction, crystallization, filtration, and washing.
(2) Online crushing system: Added a mechanism for online crushing of agglomerated materials, ensuring material uniformity and granulation, shortening drying time and material uniformity.
(3) Higher effective working volume
Normally, the loading capacity of a conventional flat three in one only accounts for 30-40% of its total volume. Due to its unique spherical structure, the spherical dryer has a relatively large effective working volume, which can reach up to 80% of the effective volume.
(4) Mix evenly without any dead corners
The multifunctional spherical filter washing and drying machine has consistent stirring force and direction in all directions, so it is symmetrical in mixing and has a good mixing effect. However, the conventional flat plate three in one mixer has uneven mixing in both radial and axial directions, and there are dead corners at the edges, which can easily lead to problems with the uniformity of the mixed product.
(5) Quick and easy cleaning
The structure of the multifunctional spherical filter washing and drying machine is very simple. Its container is spherical, so it is symmetrical in three directions from the center to the ball wall. In theory, as long as a spray ball is set at the center of the ball, all positions of the dryer can be cleaned. In practice, only 2-3 spray balls are needed for online cleaning and sterilization.
(6) Can prevent overpressure
Due to the fact that dryers are designed to operate under vacuum, in many cases, they are required to be designed to withstand higher pressures due to the risk of thermal decomposition or dust explosion. And spherical shape is the largest capacity and smallest surface in geometry, making it the ideal shape for pressure resistant containers.

Technical Parameters Table of Multi functional Spherical Filter Washing and Drying Machine

Structural diagram of multifunctional spherical filtration washing and drying machine equipment