SU1541244A1 - Apparatus for mixing milled malt with water - Google Patents

Abstract

The invention relates to the brewing industry, in particular to devices for mixing ground malt or unmalted barley with water before saccharification of the mash. The aim of the invention is to increase productivity. The device includes a housing 1 with a conical bottom 2, a nozzle 3, a stepped cylinder 4 with rings 7. In the area of the rings 7, a hydrodynamic generator 10 of ultrasonic vibrations is installed along the axis of the discharge pipe of the centrifugal pump 9. In the upper part of the cylinder 4 a vertical shaft 12 is installed, in the upper part of which a wheel with blades 13 is rigidly fixed, and in the lower part - a stirrer blade 14. The crushed malt enters the housing 1 through the pipe. ° C. The water driving the vertical shaft 12 and the agitator blades 14. At the same time, solid, large fractions of malt, moving from the surface of the rings 7, settle on the bottom 2, from where centrifugal pump 9 is fed to the ultrasonic hydrodynamic generator 10. Small fractions of malt and shells do t in the nozzle 3 for withdrawal from the device. Larger malt fractions are returned by pump 9 to the working area. 2 hp f-ly, 2 ill.

Description

3154

The invention relates to the brewing industry, in particular to devices for mixing ground malt or unmalted barley with water before saccharification of the mash.

The aim of the invention is to increase productivity.

The pipe is made in the form of a stepped cylinder with flat axisymmetric and circular rings on its inner surface in the lower part and with nozzles in the upper one, installation of an ultrasonic oscillator with radial outflow of fluid in the area of the circular rings along the axis of the device, and installation in the upper part a stepped nozzle cylinder and with the possibility of rotation of a vertical shaft on which a wheel with radial vanes is mounted in the plane of the nozzles and on the lower shank are fixed parallel to the axis Vertical, stirring blade shaft, will accelerate the process of saccharification of beer wort, wort increase yield due to better extraction of solids.

FIG. 1 shows the device, a general view; FIG. 2 shows a section A-A in FIG. 1.

The device comprises a cylindrical body 1 with a conical bottom 2. In the upper part of the cylindrical body 1, a nozzle 3 is mounted for removing the mixture from the device. The malt supply pipe k is made in the form of a stepped cylinder, in the upper part of which nozzles 5 are mounted, connected to pipeline 6 for supplying water. In the lower part of the stepped cylinder k, flat axisymmetric lines are mounted on its inner surface.

circular rings 7. In the zone of the distribution of water and malt mixture. In addition, the water of the rings of circular rings 7 along the axis of the device on the pipeline 8 of the discharge line of the centrifugal pump 9 (drive not shown) has a generator 10 of ultrasonic vibrations 10 with a radial the outflow of fluid. Inside the stepped cylinder k, the bearing 11 is fixedly mounted, in which the vertical shaft 12 is rotatably mounted. ({„The vertical 55 shaft 12 in the upper part of the wheel is rigidly fixed with radial blades 13, and in the lower part on the shank

Leaking out of the nozzles 5 and hitting the radial vanes 13 of the wheel, rotates the vertical shaft 12 and the blades of the agitator 1, and together with them the mixture of malt and water, which, when rotated between the flat axisymmetric circular rings 7, separates. At the same time, solid, coarse fractions of malt, mixing from the surface of the upper rings 7 to the lower ones, ultimately settle on the conical bottom 2, from where a centrifugal pump is fed to the generator 10 of ultrasonic vibrations. Wherein

0

five

0

0

5, the agitator blades C are rigidly fixed parallel to the shaft axis, the Nozzles 5 are attached to the water supply pipeline 6 and are evenly distributed around the circumference of the cylinder b so that their geometrical axes are tangent to the trajectory of the center of gravity of the radial blades of the wheel 13. torque on the vertical shaft 12 when water flows out of the nozzles 5. The blades of the stirrer AND are made in the form of flat strips fixed at an angle to the plane passing through the longitudinal axis of the blade and the axis of rotation vertically of shaft 12, and the angle of fixing is determined of conditions provide the highest total moment of the driving forces applied to the vertical shaft 12 of the mixer. The housing 1 and the centrifugal pump 9 mounted on the frame 15.

The ultrasonic oscillator 10 consists of a cone-cylindrical nozzle 16, a reflector 17 and a resonant oscillating system 18, made in the form of a hollow cylinder with evenly spaced slots along the generatrix. The reflector 17 has a threaded shank and can be fixed with a lock nut 19 in the required position

The drive of the centrifugal pump 9 is not shown in the diagram

The device works as follows.

Crushed malt through pipe k enters the body 1, filled with water at the bottom edge of the nozzle 3 to remove the finished mixture from the device. The pipeline 6 into the device is fed warmed to the water that flows into the installation from the nozzles 5, forming

five

a mixture of water and malt besides water

Leaking out of the nozzles 5 and hitting the radial vanes 13 of the wheel, rotates the vertical shaft 12 and the blades of the agitator 1, and together with them the mixture of malt and water, which, when rotated between the flat axisymmetric circular rings 7, separates. At the same time, solid, coarse fractions of malt, mixing from the surface of the upper rings 7 to the lower ones, ultimately settle on the conical bottom 2, from where a centrifugal pump is fed to the generator 10 of ultrasonic vibrations. Wherein

515

The pulsations of the cavitational region formed between the nozzle 16 and the reflector 17 create variable field velocities and pressures that excite bending vibrations in the rods of the oscillatory system 18 at their own frequency, which increases the intensity of dispersion of malt in water.

Thus, the entire malt-in-water mixture is exposed to ultrasonic vibrations, and the harder and coarser fractions of the malt are exposed to them for a longer time, which promotes the mixing of the ground malt with water. Small fractions of malt and shell float inside the housing 1 and enter the nozzle 3 to remove the mixture from the device. Larger malt fractions are returned by the centrifugal pump 9 to the working zone, where they are subjected to intense mechanical, cavitation and ultrasonic effects.

Claims (1)

Invention Formula 1 o A device for mixing ground malt with water, comprising a cylindrical body with a conical bottom, a pipe for feeding ground ground malt, a pipeline for supplying water, an ultrasonic vibration generator, and a centrifugal pump with A porous pipeline, characterized in that, in order to increase productivity, the malt supply pipe is provided with flat axially symmetric circular rings, the ultrasonic oscillator is made with radial outflow of fluid and is installed in the discharge pipeline in the area of the rings, the pipe is made in the form of a stepped cylinder, and circular rings are located on its inner surface in the lower part, and in the upper The 5 parts are fitted with nozzles and with the possibility of rotational movement a vertical shaft is installed, on which a wheel with radial blades is planted in the plane of the nozzles, On and on the lower shank of which are fixed parallel to the axis of the vertical shaft of the blade of the agitator, 2, the apparatus according to claim 1, characterized in that the nozzles are arranged evenly around the circumference of the stepped cylinder so that their geometrical axes are tangent to the trajectory of the centers of the body of the blades. The device according to 1, OTLI 0 is often such that the blades of the agitator are made in the form of flat strips fixed at an angle to the plane passing through the longitudinal axis of the blade and the axis of rotation of the agitator.