RU2013137862A - METHOD FOR PRODUCING POWDER PRODUCT AND INSTALLATION FOR ITS IMPLEMENTATION - Google Patents

Abstract

2ts1. A method of obtaining a powdered product from biological raw materials, according to which the pre-prepared crushed biological raw materials are mixed until a homogeneous mixture is formed, fed to a drying chamber equipped with a rotating activator, where they are further crushed to obtain particles of a given size by mechanical crushing on the activator and dried in a gaseous coolant stream with temperature of 80-165 ° C, moving in the ascending direction with a speed (V) of 1.0-1.5 free fall speed hour eggs, which are then carried out from the drying chamber to the cyclone to collect the powdered product together with the gaseous coolant stream, characterized in that the gaseous coolant stream is introduced into the drying chamber from the back of the activator in the direction of the baffle surface, and the flow rate of the gaseous coolant (V) in the outlet the nozzle of the drying chamber entering the cyclone from the drying chamber is set within 18-25 m / s, depending on the parameters of the initial biological raw material. 2. The method of obtaining a powdery product from biological raw materials according to claim 1, characterized in that the flow rate (V) of the gaseous coolant in the outlet pipe of the drying chamber is calculated by the following formula: where V is the flow rate of the gaseous coolant, m / s; Q is the flow rate of the gaseous coolant supplied to the drying chamber from the heat generator, m / h; S- is the area of the passage section of the outlet pipe, m.3. A method of obtaining a powdered product from biological raw materials according to claim 1, characterized in that the area of the passage section of the outlet pipe of the drying chamber in the process

Claims (7)

2ts1. A method of obtaining a powdered product from biological raw materials, according to which the pre-prepared crushed biological raw materials are mixed until a homogeneous mixture is formed, fed to a drying chamber equipped with a rotating activator, where they are further crushed to obtain particles of a given size by mechanical crushing on the activator and dried in a gaseous coolant stream with temperature of 80-165 ° C, moving in an upward direction at a speed (V _CS), 1.0-1.5 velocity component freefall astits, which are then carried out from the drying chamber to the cyclone to collect the powdered product together with the gaseous coolant stream, characterized in that the gaseous coolant stream is introduced into the drying chamber from the back of the activator in the direction of the baffle surface, and the flow rate of the gaseous coolant (V _VP ) in the outlet pipe the drying chamber entering the cyclone from the drying chamber is set within 18-25 m / s, depending on the parameters of the initial biological raw material. 2. The method of obtaining a powdery product from biological raw materials according to claim 1, characterized in that the flow rate (V _VP ) of the gaseous coolant in the outlet pipe of the drying chamber is calculated by the following formula: $${{\displaystyle V}}_{\mathrm{at}P}={{\displaystyle Q}}_{gt}/{{\displaystyle S}}_{\mathrm{at}P}\times 3600,(\mathrm{one})$$

Where V _VP - the flow rate of the gaseous coolant, m / s; Q _gt is the flow rate of the gaseous coolant supplied to the drying chamber from the heat generator, m ³ / h; S _VP - the area of the passage section of the outlet pipe, m ² . 3. The method of obtaining a powdery product from biological raw materials according to claim 1, characterized in that the area of the passage section of the outlet pipe of the drying chamber in the adjustment process is set based on the following relationship: $$0,\mathrm{fifteen}{{\displaystyle S}}_{\mathrm{to}\mathrm{from}}<{{\displaystyle S}}_{\mathrm{at}P}<0,35{{\displaystyle S}}_{\mathrm{to}\mathrm{from}}(2),$$

Where S _x - the average cross-sectional area of the drying chamber, m ² ; S _VP - the area of the passage section of the outlet pipe, m ² . 4. Installation for producing a powdered product from biological raw materials, containing a preliminary preparation of biological raw materials, equipped with a mixer, a heat generator with an outlet pipe, a drying chamber, in the lower part of which there is a chopper made in the form of a mechanical activator mounted for rotation, and in the upper - installed outlet pipe connected to the cyclone for collecting the powdery product, characterized in that the lower part of the drying chamber is provided with a baffle surface for an hour of biological raw materials located opposite the activator and inclined at an angle of 30-60 ° relative to the axis of the activator, the outlet of the heat generator is adjacent to the lower part of the drying chamber from the back of the activator, and its nozzle is directed toward the aforementioned baffle surface, while the outlet of the drying chamber is provided a valve for adjusting the bore of the outlet pipe. 5. Installation for producing a powdered product from biological raw materials according to claim 4, characterized in that it is equipped with a vibrator installed in the lower part of the drying chamber and adjacent to the baffle surface to prevent the particles of plant material from occurring in the drying chamber. 6. Installation for producing a powdery product from biological raw materials according to one of paragraphs. 4 or 5, characterized in that it is additionally equipped with a dehumidifier attached to the outlet pipe of the cyclone for collecting the powdered product and equipped with a condensate collection tank connected to the discharge pump, the outlet of which is equipped with a condensate atomization unit located in the outlet pipe of the said cyclone. 7. Installation for producing a powdered product from biological raw materials according to one of paragraphs 4 or 5, characterized in that it is equipped with a rarefaction compressor associated with the gas-filled cavity of the dehumidifier and equipped with an exhaust pipe.